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EP2088303B1 - Production process of a support plate for throttle bodies and support plate - Google Patents

Production process of a support plate for throttle bodies and support plate Download PDF

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Publication number
EP2088303B1
EP2088303B1 EP09305061A EP09305061A EP2088303B1 EP 2088303 B1 EP2088303 B1 EP 2088303B1 EP 09305061 A EP09305061 A EP 09305061A EP 09305061 A EP09305061 A EP 09305061A EP 2088303 B1 EP2088303 B1 EP 2088303B1
Authority
EP
European Patent Office
Prior art keywords
controlled
portions
pipe
bearing
base armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09305061A
Other languages
German (de)
French (fr)
Other versions
EP2088303A1 (en
Inventor
Laurent Germain
Denis Menin
Richard Komurian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sogefi Air and Cooling SAS
Original Assignee
Mark IV Systemes Moteurs SAS
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Filing date
Publication date
Application filed by Mark IV Systemes Moteurs SAS filed Critical Mark IV Systemes Moteurs SAS
Publication of EP2088303A1 publication Critical patent/EP2088303A1/en
Application granted granted Critical
Publication of EP2088303B1 publication Critical patent/EP2088303B1/en
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
    • F02D9/1095—Rotating on a common axis, e.g. having a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/107—Manufacturing or mounting details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10078—Connections of intake systems to the engine
    • F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10347—Moulding, casting or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/112—Intake manifolds for engines with cylinders all in one line
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making

Definitions

  • the present invention relates to the field of flow control of a fluid, preferably gaseous, specifically the regulation of the gas flow injected into the cylinders of an internal combustion engine.
  • the invention relates more particularly to a method of producing a support plate for valve body intended to be mounted between the cylinder head and the distributor or intake manifold of a motor vehicle, such a support plate comprising regulated duct portions. and portions of unregulated conduits.
  • Such a regulation makes it possible to obtain equivalent fluid speeds both at low and high engine speeds, by closing off the portions of ducts regulated by the valves during operation at low speeds and by allowing the passage of the fluid in the latter. as part of a larger plan.
  • Another problem lies in the lack of tightness between the distributor and the cylinder head.
  • the present invention proposes to overcome the disadvantages of known devices and to provide a support plate in which the alignment of the bearings of the control shaft carrying the valve bodies is kept in time.
  • a support plate could constitute a single piece of complete equipment that can be mounted between the engine cylinder head and the distributor or intake manifold easily and ensure tightness between them.
  • an intake manifold comprising an arrangement of flapper valves with two housings constituting passages communicating between the outlets of the manifolds and the inlets of the cylinder heads.
  • Each casing is of substantially planar structure and forms a support body for valves intended to regulate the gaseous flow passing through the manifolds of the intake manifold into the inlet openings of the cylinder head.
  • Each housing is constituted by at least one pair of regulated conduit portions having a valve body and forming a regulated flow passage and unregulated conduit portions having no valve body and an unregulated flow passage, said portions of regulated and unregulated conduits fluidly connecting, in the mounted state of said support plate, the manifolds of the intake manifold to the inlet ports of the cylinder head.
  • valve bodies are, according to the document US 5,715,782 directly molded on the control shaft, which is rotatably mounted in bearings aligned with each other and formed in the walls of the regulated and unregulated conduit portions.
  • the present invention is intended to overcome this disadvantage.
  • base reinforcement 22 it will be readily understood that it is the reinforcement intended to form the support plate 1, this reinforcement corresponding to the support plate 1 before the mounting of the control shaft 8, of the valve body 5, and possibly the overmolding of seals 17.
  • the method may consist in providing a base frame 22 in which the unregulated pipe portions 4 'are made at the portions 19 of the base frame 22, in the thickness of the latter.
  • This first embodiment which is represented in the figures 1 , 2A , 2B , 3A , 3B , 4A and 4B , is adapted to configurations in which the manifolds of the intake manifold are aligned. Under these conditions, the regulated duct portions 4 of the support plate 1 are aligned with the unregulated pipe portions 4 '.
  • the Figure 2A represents the step ii) of temporarily depositing a valve body 5 on a support means 20 at each portion 19 of the base frame 22, so that all the through grooves 10 of the bodies of valves 5 are aligned with each other and with the bearings 7 and 9.
  • each valve body 5 is mounted on a portion of the edge delimiting the unregulated conduit portion 4 'forming the support means 20, and consisting of a member of the inner wall of the unregulated conduit portion 4 '.
  • the method according to the invention can consist in providing a base reinforcement 22 in which the regulated and non-regulated pipe portions 4 'are made in one piece with the circumferential wall 2 of said base armature 22 and wherein each unregulated conduit portion 4 'has, at its inner wall, two opposed wall elements 14 made at the bearings 7, 9 and forming the support means 20 for temporary positioning of a valve body 5.
  • these wall elements 14 or flanges will be of a configuration such that they do not impede the flow of fluid passing through the portions of conduits 4 'concerned and do not cause loss of load.
  • the flanges 14 may be present in the number of two arranged face to face to each other at each portion of duct 4 'and made at the walls separating the portions of regulated ducts 4 and unregulated 4'. The shape of these flanges 14 and their positioning will be chosen so as to allow alignment of the through grooves 10 of the valve bodies 5 with the bearings 7 and 9.
  • the method according to the invention may consist in providing a base reinforcement 22 in which the assemblies 21 constituted by a controlled portion of duct 4 and a portion 19 or an unregulated portion of duct 4 'associated with said regulated portion 4 are separated by a separation wall projecting from the plane of the base armature 22, partition wall in which is formed a bearing 7 in the form of an orifice passing through said partition wall, this bearing constituting a bearing 7 for guiding the control shaft 8.
  • the regulated duct portion 4 can be separated from the portion 19 or the unregulated duct portion 4 'by a separation wall projecting from the plane of the base frame 22 and forming a support bearing 9 for the control shaft 8.
  • Said partition wall is projecting at the side where the valve bodies 5 are arranged, the support plate 1 being preferably flat at the other side which can be mounted on the engine cylinder head
  • the Figure 2B represents the step of mounting the control shaft 8 which consists of introducing the latter through all the bearings 7, 8 and through grooves 10 of the valve bodies 5.
  • the control shaft 8 can be realized in steel or brass, for example. This insertion is carried out from a first end 6 of the base frame 22 which may comprise a guide bearing 7 made in the form of a hole passing through the circumferential wall 2 of said base frame 22 at a 6.
  • the other end 6 'of the base armature 22 may also have a bearing 7 for guiding the control shaft 8, made in the form of a non-through hole for receiving the end. 11 of the control pin 8, at the circumferential wall 2 of the second end 6 'of the base armature 22.
  • the control pin 8 does not is not positioned in its mounting position, in fact the insertion end 11 of the control shaft 8 is not introduced into the above-mentioned guide bearing 7, but is kept at a distance from the latter, making it possible to later over-molding the bearing surface 12 and the fitting key 13 corre spondantes.
  • the Figure 2C represents for this purpose the insertion end 11 of the control shaft 8 after the overmolding of the bearing surface 12 for the valve body 5 intended to be put in place in the corresponding regulated conduit portion 4 and the key of the mounting 13 to be mounted in the guide bearing 7 at the second end 6 'of the base frame 22.
  • This overmolding is performed at each portion of the control shaft 8 located at an unregulated conduit portion 4 'or portion 19.
  • the figure 3A represents the establishment of a valve body 5 in the portion of conduit 4 that it must regulate. This installation is done during step v) of the method, by sliding each valve body 5 on the control shaft 8 from its temporary position to its final position, in a controlled portion of duct 4.
  • a support plate 1 is thus obtained in the form of an integral element whose constituent elements are not removable.
  • the guide bearings 7 and the support bearings 9 are located at the partition walls of the portions of the controlled ducts 4 and unregulated conduit portions 4 'or portions 19 of the base frame 22 and between two rigid surfaces, namely the cylinder head and the intake manifold 3, so that their alignment is guaranteed in time , as well as the co-axiality of the bearing bodies 5.
  • the support plate 1 being sandwiched between the yoke and the distributor, the deformations of this support plate 1 are limited, as the clearance can remain at the level of the valves .
  • the method according to the invention thus makes it possible to obtain a support plate 1 having an increased lifetime.
  • the method may consist in carrying out, between steps i) and ii), a sunnouling step of seals 17 on both faces of the base frame 22, in corresponding grooves 18 of said base frame 22 surrounding each set consisting of a regulated portion of conduit 4 and a portion unregulated conduit 4 '.
  • the method may comprise providing a base frame 22 in which the unregulated conduit portions 4 'are aligned with each other and are made on the same side of the base frame 22, projecting from the side edge of said side and to perform, between steps i) and ii), a step of overmolding seals 17 on both sides of the base annulus 22, in corresponding grooves 18 of said base armature 22 and surrounding, on the one hand, on the face comprising the valve bodies 5, each assembly 21 'constituted by a controlled portion of duct 4, a portion 19 and a non-duct portion; 4 'and, on the other hand, on the other side, each assembly 21 consisting of a controlled portion of conduit 4 and an unregulated conduit portion 4'.
  • the seal between each assembly 21, 21 'and the corresponding orifices of the cylinder head and the corresponding ducts of the intake manifold 3 is thus ensured during the mounting of the support plate 1 between the intake manifold 3 and the cylinder head, by crushing said seals 17.
  • the support plate 1 thus also has a sealing function, in addition to its function of regulating the gas flow. It can also absorb the vibrations between the distributor and the cylinder head and limit the deformations due to these vibrations.
  • the support plate may have different shapes, particularly as regards the positioning of the unregulated pipe portions 4 'relative to the regulated pipe portions 4 which are aligned with the base plate 22
  • the method according to the invention may consist in providing a base frame 22 in which the unregulated conduit portions 4 'are each made opposite a regulated conduit portion 4.
  • a support plate 1 made from such a base reinforcement 22 is shown in FIGS. Figures 5A and 5B .
  • a third embodiment is shown in Figures 6A and 6B and is obtained by providing a base frame 22 in which the unregulated conduit portions 4 'are each made opposite a portion 19 of the base frame 22 forming a temporary receiving zone of a valve body 5.
  • the method may consist in producing, on the control spindle 8, spans 12 comprising two substantially plane wings extending laterally, on either side of the rod forming the control spindle 8, and providing bodies of valves 5 whose through groove 10 has a shape capable of cooperating with said bearing surfaces 12.
  • This form of the bearing surfaces 12 allows a correct operation of the valve bodies 5 via the control pin 8.
  • the spans 12 have a length less than the length of the through groove 10 of the valve bodies 5, but however greater than half the length of the latter. This makes it possible to obtain a correct drive of the valves with a minimum of overmoulded material.
  • the method may consist in producing each mounting key 13 by applying an extra thickness on a portion of the rod forming the control shaft 8, said portion having a length substantially equal to the depth of the corresponding bearing 7 and a diameter such that the mounting key 13 can be accommodated therein.
  • the method may consist in making each mounting key 13 in one piece with the corresponding scope 12.
  • the figures 1 , 2 , 5 and 6 illustrate a support plate 1 for valve bodies, of general planar structure, produced according to the described method above, intended to be mounted between the cylinder head of an internal combustion engine and the distributor or intake manifold 3, and to regulate the gaseous flow passing through the manifolds of the intake manifold 3 into the inlet ports of the the yoke, said support plate being of substantially planar structure, at least at its side intended to come into contact with the yoke and being constituted by at least one pair of regulated conduit portions 4 comprising a valve body 5 and forming a controlled flow passage and unregulated conduit portions 4 'having no valve body 5 and forming an unregulated flow passage, said regulated 4 and unregulated 4' conduit portions fluidly connecting, in the mounted state of said support plate 1, the manifolds of the intake manifold 3 to the inlet ports of the cylinder head, the valve bodies 5 being controlled by a control pin 8.
  • the support plate 1 may comprise means 15 for fixing by elastic deformation on corresponding lugs 16 disposed at the ends of the manifolds of the manifold intake 3.
  • These fixing means may be in the form of tabs extending laterally with respect to the longitudinal axis of the support plate 1, as shown in FIG. figure 1 and cooperating with the corresponding lugs 16 made at the outer walls of the manifolds of the intake manifold 3 (cf. Figures 4A and 4B ).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Valve Device For Special Equipments (AREA)
  • Characterised By The Charging Evacuation (AREA)

Description

La présente invention concerne le domaine de la régulation de flux d'un fluide, préférentiellement gazeux, plus précisément la régulation du flux gazeux injecté dans les cylindres d'un moteur à combustion interne.The present invention relates to the field of flow control of a fluid, preferably gaseous, specifically the regulation of the gas flow injected into the cylinders of an internal combustion engine.

L'invention concerne plus particulièrement un procédé de réalisation d'une plaque support pour corps de clapets destinée à être montée entre la culasse et le répartiteur ou collecteur d'admission d'un véhicule automobile, une telle plaque support comportant des portions de conduit régulées et des portion de conduits non régulées.The invention relates more particularly to a method of producing a support plate for valve body intended to be mounted between the cylinder head and the distributor or intake manifold of a motor vehicle, such a support plate comprising regulated duct portions. and portions of unregulated conduits.

Une telle régulation permet d'obtenir des vitesses de fluide équivalentes aussi bien en faible qu'en haut régime du moteur, en obturant les portions de conduits régulées par les clapets lors du fonctionnement en faible régime et en autorisant le passage du fluide dans ces dernières dans le cadre d'un régime plus important.Such a regulation makes it possible to obtain equivalent fluid speeds both at low and high engine speeds, by closing off the portions of ducts regulated by the valves during operation at low speeds and by allowing the passage of the fluid in the latter. as part of a larger plan.

Les plaques support connues présentent un certain nombre d'inconvénients. Le problème majeur de ces plaques connues est que les paliers dans lesquels sont montés les corps de clapets de ces dernières ne conservent pas leur co-axialité. Ceci a pour conséquence un risque de blocage des clapets, et donc une régulation du flux de fluide qui n'est plus réalisée de manière efficace et une perte d'énergie.Known support plates have a number of disadvantages. The major problem of these known plates is that the bearings in which the valve bodies of the latter are mounted do not retain their coaxiality. This has the consequence of a risk of blocking of the valves, and therefore a regulation of the fluid flow which is no longer efficiently performed and a loss of energy.

Un autre problème réside dans le manque d'étanchéité entre le répartiteur et la culasse.Another problem lies in the lack of tightness between the distributor and the cylinder head.

La présente invention se propose de pallier les inconvénients des dispositifs connus et de fournir une plaque support dans laquelle l'alignement des paliers de l'axe de commande portant les corps de clapets est conservé dans le temps. Une telle plaque pourrait constituer une seule pièce d'équipement complet qui peut être montée entre la culasse du moteur et le répartiteur ou collecteur d'admission de manière aisée et assurer l'étanchéité entre ces derniers.The present invention proposes to overcome the disadvantages of known devices and to provide a support plate in which the alignment of the bearings of the control shaft carrying the valve bodies is kept in time. Such a plate could constitute a single piece of complete equipment that can be mounted between the engine cylinder head and the distributor or intake manifold easily and ensure tightness between them.

Par le document US 5 715 782 , on connaît un répartiteur d'admission comprenant un arrangement de vannes à clapet avec deux carters constituant des passages communiquant entre les sorties des tubulures et les entrées des culasses.By the document US 5,715,782 an intake manifold is known comprising an arrangement of flapper valves with two housings constituting passages communicating between the outlets of the manifolds and the inlets of the cylinder heads.

Chaque carter est à structure sensiblement plane et forme un corps support pour des clapets destinés à réguler le flux gazeux transitant des tubulures du collecteur d'admission dans les orifices d'entrée de la culasse.Each casing is of substantially planar structure and forms a support body for valves intended to regulate the gaseous flow passing through the manifolds of the intake manifold into the inlet openings of the cylinder head.

Chaque carter est constitué par au moins une paire de portions de conduits régulées comportant un corps de clapet et formant un passage d'écoulement régulé et des portions de conduits non régulées ne comportant pas de corps de clapet et formant passage d'écoulement non régulé, lesdites portions de conduits régulées et non régulées reliant fluidiquement, à l'état monté de ladite plaque support, les tubulures du collecteur d'admission aux orifices d'entrée de la culasse.Each housing is constituted by at least one pair of regulated conduit portions having a valve body and forming a regulated flow passage and unregulated conduit portions having no valve body and an unregulated flow passage, said portions of regulated and unregulated conduits fluidly connecting, in the mounted state of said support plate, the manifolds of the intake manifold to the inlet ports of the cylinder head.

Les corps de clapets sont, selon le document US 5 715 782 , directement formés par moulage sur l'axe de commande, lequel est monté avec faculté de rotation guidée dans des paliers alignés entre eux et formés dans les parois des portions de conduits régulés et non régulés.The valve bodies are, according to the document US 5,715,782 directly molded on the control shaft, which is rotatably mounted in bearings aligned with each other and formed in the walls of the regulated and unregulated conduit portions.

Toutefois, le procédé de fabrication divulgué par ce document US, en particulier la fabrication des clapets, est compliqué et nécessite la mise en oeuvre d'un outillage complexe et onéreux.However, the manufacturing method disclosed by this US document, in particular the manufacture of valves, is complicated and requires the implementation of complex and expensive tools.

La présente invention a notamment pour but de surmonter cet inconvénient.The present invention is intended to overcome this disadvantage.

A cet effet, l'invention a pour objet un procédé de réalisation d'une plaque support pour corps de clapets à rainure traversante pour montage d'un axe de commande et à structure générale plane, destinée à être montée entre la culasse d'un moteur thermique d'un véhicule automobile et le répartiteur ou collecteur d'admission, ladite plaque support présentant un nombre paire de portions de conduits destinées à relier fluidiquement les tubulures du collecteur d'admission aux orifices d'entrée de la culasse, chaque paire de portions de conduits étant constituée par une portion de conduit régulée comportant un corps de clapet et formant passage d'écoulement régulé et une autre portion de conduit non régulée adjacente ne comportant pas de corps de clapet et formant passage d'écoulement non régulé, les portions de conduits régulées étant alignées entre elles et située à distance les unes des autres,
procédé caractérisé en ce qu'il consiste à

  1. i) fournir une armature de base de structure sensiblement plane et à extension longitudinale comprenant un nombre pair de portions de conduits, réalisées dans l'épaisseur de ladite armature de base,
    dans laquelle les portions de conduits régulées sont alignées entre elles, sont adjacentes chacune à deux paliers diamétralement opposés pour le support et le guidage de l'axe de commande des corps de clapets,
    dans laquelle chaque portion de conduit régulée est associée à une portion de l'armature de base formant zone de réception temporaire d'un corps de clapet, lesdites portions étant alignées avec les portions de conduits régulées, de sorte que deux portions de conduits régulées consécutives sont séparées l'une de l'autre par une portion de l'armature de base,
    et dans laquelle chaque portion comprend un moyen de support pour le positionnement temporaire d'un corps de clapet,
    ladite armature de base présentant, au niveau d'une première extrémité, un palier adjacent à une portion de l'armature de base et, au niveau de l'autre extrémité, un palier adjacent à une portion de conduit régulée,
  2. ii) disposer un corps de clapet sur le moyen de support au niveau de chaque portion de l'armature de base, de telle sorte que l'ensemble des rainures traversantes des corps de clapets soient alignées entre elles et avec les paliers,
  3. iii) monter l'axe de commande sous forme d'une tige à travers les paliers et la rainure traversante de chaque corps de clapet, jusqu'à ce que l'extrémité d'insertion de ladite tige se trouve à proximité du palier de la seconde extrémité de l'armature de base,
  4. iv) au niveau de chaque portion de conduit régulée, surmouler, sur l'axe de commande, d'une part, une portée pour un corps de clapet et, d'autre part, une clavette de montage pour le montage dans un palier correspondant,
  5. v) monter chaque corps de clapet sur sa portée correspondante en faisant coulisser chaque corps de clapet sur l'axe de commande, depuis sa position au niveau de la portion de l'armature de base vers la portion de conduit régulée adjacente, au niveau de laquelle l'axe de commande est muni d'une portée, et
  6. vi) insérer les clavettes de montage dans les paliers correspondants en faisant coulisser l'axe de commande jusqu'à ce qu'il arrive en butée dans le palier situé au niveau de la seconde extrémité de l'armature de base.
To this end, the subject of the invention is a method for producing a support plate for a through-groove valve body for mounting a control shaft and with a generally flat structure, intended to be mounted between the cylinder head of a motor vehicle heat engine and the distributor or intake manifold, said carrier plate having an even number of conduit portions for fluidically connecting the manifolds from the intake manifold to the cylinder head inlet ports, each pair of duct portions being constituted by a regulated duct portion having a valve body and a regulated flow passage and an adjacent unregulated conduit portion having no valve body and forming an unregulated flow passage, the regulated conduit portions being aligned with one another and spaced apart from each other,
characterized in that it consists of
  1. i) providing a base reinforcement of substantially flat structure and longitudinal extension comprising an even number of portions of conduits, made in the thickness of said base reinforcement,
    wherein the regulated conduit portions are aligned with each other, each adjacent two diametrically opposed bearings for supporting and guiding the control shaft of the valve bodies,
    wherein each regulated duct portion is associated with a portion of the base frame forming a temporary receiving area of a valve body, said portions being aligned with the regulated duct portions, so that two consecutive regulated duct portions are separated from each other by a portion of the base frame,
    and wherein each portion includes support means for temporarily positioning a valve body,
    said base armature having, at a first end, a bearing adjacent a portion of the base armature and at the other end a bearing adjacent to a regulated conduit portion;
  2. ii) arranging a valve body on the support means at each portion of the base frame, such that all the through grooves of the valve bodies are aligned with each other and with the bearings,
  3. iii) mounting the control shaft in the form of a rod through the bearings and the through groove of each valve body, until the insertion end of said stem is near the bearing of the second end of the basic frame,
  4. iv) at each regulated duct portion, overmolding on the control shaft, on the one hand, a seat for a valve body and, on the other hand, a mounting key for mounting in a corresponding bearing,
  5. v) mounting each valve body on its corresponding bearing surface by sliding each valve body on the control shaft, from its position at the portion of the base frame to the adjacent regulated conduit portion, at the which the control shaft is provided with a bearing, and
  6. vi) insert the mounting keys into the corresponding bearings by sliding the control shaft until it abuts the bearing at the second end of the base frame.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels :

  • la figure 1 est une vue en perspective de la plaque support selon une première forme de réalisation du procédé selon l'invention;
  • les figures 2A à 2D sont des vues en perspective d'une partie de la plaque support représentée à la figure 1 lors des différentes étapes de son procédé de réalisation,
  • les figures 3A et 3B sont des vues en perspective éclatées illustrant les dernières étapes de réalisation de la plaque support représentée à la figure 1,
  • les figures 4A et 4B représentent la plaque support représentée à la figure 1 respectivement avant et après son montage sur l'extrémité des tubulures d'un collecteur d'admission,
  • les figures 5A et 5B représentent des vues du dessus respectivement, du dessous, d'une plaque support selon une seconde forme de réalisation du procédé selon l'invention;
  • les figures 6A et 6B représentent des vues du dessus respectivement, du dessous, d'une plaque support selon une troisième forme de réalisation du procédé selon l'invention.
  • Les figures 1, 2A à 2D, 3A et 3B illustrent schématiquement les différentes étapes du procédé selon l'invention consistant à réaliser une plaque support 1, selon une première forme de réalisation, pour corps de clapets 5 à rainure traversante 10 pour montage d'un axe de commande 8 et à structure générale plane, destinée à être montée entre la culasse d'un moteur thermique d'un véhicule automobile et le répartiteur ou collecteur d'admission 3, ladite plaque support 1 présentant un nombre paire de portions de conduits 4, 4' destinées à relier fluidiquement les tubulures du collecteur d'admission 3 aux orifices d'entrée de la culasse, chaque paire de portions de conduits 4, 4' étant constituée par une portion de conduit régulée 4 comportant un corps de clapet 5 et formant passage d'écoulement régulé et une autre portion de conduit non régulée 4' adjacente ne comportant pas de corps de clapet 5 et formant passage d'écoulement non régulé, les portions de conduits régulées 4 étant alignées entre elles et situés à distance les unes des autres.
The invention will be better understood, thanks to the following description, which relates to a preferred embodiment, given by way of non-limiting example, and explained with reference to the attached schematic drawings, in which:
  • the figure 1 is a perspective view of the support plate according to a first embodiment of the method according to the invention;
  • the Figures 2A to 2D are perspective views of a portion of the support plate shown in FIG. figure 1 during the different stages of its production process,
  • the Figures 3A and 3B are exploded perspective views illustrating the final steps of making the support plate shown in FIG. figure 1 ,
  • the Figures 4A and 4B represent the support plate shown in figure 1 respectively before and after its mounting on the end of the manifolds of an intake manifold,
  • the Figures 5A and 5B show top and bottom views, respectively, of a support plate according to a second embodiment of the method according to the invention;
  • the Figures 6A and 6B represent top and bottom views, respectively, of a support plate according to a third embodiment of the method according to the invention.
  • The figures 1 , 2A to 2D , 3A and 3B schematically illustrate the various steps of the method according to the invention consisting in producing a support plate 1, according to a first embodiment, for through-grooved valve bodies 10 for mounting a control shaft 8 and with a general flat structure, intended to be mounted between the cylinder head of a combustion engine of a motor vehicle and the distributor or intake manifold 3, said support plate 1 having an even number of portions of ducts 4, 4 'intended for fluidly connecting the manifolds of the intake manifold 3 to the inlet ports of the cylinder head, each pair of duct portions 4, 4 'being constituted by a regulated duct portion 4 comprising a valve body 5 and forming a flow passage regulated and another portion of unregulated conduit 4 'adjacent having no valve body 5 and forming an unregulated flow passage, the regulated conduit portions 4 being aligned with each other and located at a distance from each other.

Ce procédé est caractérisé en ce qu'il consiste à

  1. i) fournir une armature de base 22 de structure sensiblement plane et à extension longitudinale comprenant un nombre pair de portions de conduits 4, 4', réalisées dans l'épaisseur de ladite armature de base 22,
    dans laquelle les portions de conduits régulées 4 sont alignées entre elles, sont adjacentes chacune à deux paliers 7, 9 diamétralement opposés pour le support et le guidage de l'axe de commande 8 des corps de clapets 5,
    dans laquelle chaque portion de conduit régulée 4 est associée à une portion 19 de l'armature de base 22 formant zone de réception temporaire d'un corps de clapet 5, lesdites portions 19 étant alignées avec les portions de conduits régulées 4, de sorte que deux portions de conduits régulées 4 consécutives sont séparées l'une de l'autre par une portion 19 de l'armature de base 22,
    et dans laquelle chaque portion 19 comprend un moyen de support 20 pour le positionnement temporaire d'un corps de clapet 5,
    ladite armature de base 22 présentant, au niveau d'une première extrémité 6, un palier 7 adjacent à une portion 19 et, au niveau de l'autre extrémité 6', un palier 7 adjacent à une portion de conduit régulée 4 ,
  2. ii) disposer un corps de clapet 5 sur le moyen de support 20 au niveau de chaque portion 19 de l'armature de base 22, de telle sorte que l'ensemble des rainures traversantes 10 des corps de clapets 5 soient alignés entre elles et avec les paliers 7 et 9,
  3. iii) monter l'axe de commande 8 sous forme d'une tige à travers les paliers 7 et 9 et la rainure traversante 10 de chaque corps de clapet 5, jusqu'à ce que l'extrémité d'insertion 11 de ladite tige se trouve à proximité du palier 7 de la seconde extrémité 6' de l'armature de base 22,
  4. iv) au niveau de chaque portion de conduit régulée 4, surmouler, sur l'axe de commande 8, d'une part, une portée 12 pour un corps de clapet 5 et, d'autre part, une clavette de montage 13 pour le montage dans un palier 7 correspondant,
  5. v) monter chaque corps de clapet 5 sur sa portée 12 correspondante en faisant coulisser chaque corps de clapet 5 sur l'axe de commande 8, depuis sa position au niveau de la portion 19 de l'armature de base 22 vers la portion de conduit régulée 4 adjacente, au niveau de laquelle l'axe de commande 8 est muni d'une portée 12, et
  6. vi) à insérer les clavettes de montage 13 dans les paliers 7 correspondants en faisant coulisser l'axe de commande 8 jusqu'à ce qu'il arrive en butée dans le palier 7 situé au niveau de la seconde extrémité 6' de l'armature de base 22.
This process is characterized in that it consists of
  1. i) providing a base frame 22 of substantially planar structure and longitudinal extension comprising an even number of duct portions 4, 4 ', made in the thickness of said base frame 22,
    in which the regulated duct portions 4 are aligned with each other, are each adjacent to two diametrically opposed bearings 7, 9 for supporting and guiding the control shaft 8 of the valve bodies 5,
    wherein each regulated duct portion 4 is associated with a portion 19 of the base frame 22 forming a temporary receiving zone of a valve body 5, said portions 19 being aligned with the regulated duct portions 4, so that two portions of consecutive regulated ducts 4 are separated from each other by a portion 19 of the base reinforcement 22,
    and wherein each portion 19 comprises a support means 20 for the temporary positioning of a valve body 5,
    said base armature 22 having, at a first end 6, a bearing 7 adjacent to a portion 19 and, at the other end 6 ', a bearing 7 adjacent to a regulated conduit portion 4,
  2. ii) arranging a valve body 5 on the support means 20 at each portion 19 of the base armature 22, so that all the through grooves 10 of the valve bodies 5 are aligned with each other and with the bearings 7 and 9,
  3. iii) mounting the control shaft 8 in the form of a rod through the bearings 7 and 9 and the through groove 10 of each valve body 5, until the insertion end 11 of said rod is in the vicinity of the bearing 7 of the second end 6 'of the base armature 22,
  4. iv) at each regulated duct portion 4, overmolding, on the control shaft 8, on the one hand, a bearing surface 12 for a valve body 5 and, on the other hand, a mounting key 13 for the mounting in a corresponding bearing 7,
  5. v) mounting each valve body 5 on its corresponding bearing surface 12 by sliding each valve body 5 on the control shaft 8, from its position at the portion 19 of the base frame 22 towards the portion of the conduit 4 adjacent control, at which the control axis 8 is provided with a scope 12, and
  6. vi) inserting the mounting keys 13 in the corresponding bearings 7 by sliding the control pin 8 until it abuts in the bearing 7 located at the second end 6 'of the armature basic 22.

Par armature de base 22, on comprendra aisément qu'il s'agit de l'armature destinée à former la plaque support 1, cette armature correspondant à la plaque support 1 avant le montage de l'axe de commande 8, du corps de clapet 5, et éventuellement le surmoulage de joints d'étanchéité 17.By base reinforcement 22, it will be readily understood that it is the reinforcement intended to form the support plate 1, this reinforcement corresponding to the support plate 1 before the mounting of the control shaft 8, of the valve body 5, and possibly the overmolding of seals 17.

De manière caractéristique, le procédé peut consister à fournir une armature de base 22 dans laquelle les portions de conduits non régulées 4' sont réalisées au niveau des portions 19 de l'armature de base 22, dans l'épaisseur de cette dernière. Cette première forme de réalisation, qui est représentée dans les figures 1, 2A, 2B, 3A, 3B, 4A et 4B, est adaptée à des configurations dans lesquelles les tubulures du collecteur d'admission sont alignées. Dans ces conditions, les portions de conduits régulées 4 de la plaque support 1 sont alignées avec les portions de conduits non régulées 4'.Typically, the method may consist in providing a base frame 22 in which the unregulated pipe portions 4 'are made at the portions 19 of the base frame 22, in the thickness of the latter. This first embodiment, which is represented in the figures 1 , 2A , 2B , 3A , 3B , 4A and 4B , is adapted to configurations in which the manifolds of the intake manifold are aligned. Under these conditions, the regulated duct portions 4 of the support plate 1 are aligned with the unregulated pipe portions 4 '.

La figure 2A représente l'étape ii) consistant à déposer de manière temporaire un corps de clapet 5 sur un moyen de support 20 au niveau de chaque portion 19 de l'armature de base 22, de telle sorte que l'ensemble des rainures traversantes 10 des corps de clapets 5 soient alignées entre elles et avec les paliers 7 et 9. Dans la première configuration représentée dans cette figure, chaque corps de clapet 5 est monté sur une partie du bord délimitant la portion de conduit non régulée 4' formant le moyen de support 20, et consistant en un élément de la paroi interne de la portion de conduit non régulée 4'.The Figure 2A represents the step ii) of temporarily depositing a valve body 5 on a support means 20 at each portion 19 of the base frame 22, so that all the through grooves 10 of the bodies of valves 5 are aligned with each other and with the bearings 7 and 9. In the first configuration shown in this figure, each valve body 5 is mounted on a portion of the edge delimiting the unregulated conduit portion 4 'forming the support means 20, and consisting of a member of the inner wall of the unregulated conduit portion 4 '.

A cet effet, et de manière caractéristique, le procédé selon l'invention peut consister à fournir une armature de base 22 dans laquelle les portions de conduits régulées 4 et non régulées 4' sont réalisées d'un seul tenant avec la paroi circonférentielle 2 de ladite armature de base 22 et dans laquelle chaque portion de conduit non régulée 4' présente, au niveau de sa paroi interne, deux éléments de paroi 14 opposées réalisées au niveau des paliers 7, 9 et formant le moyen de support 20 pour le positionnement temporaire d'un corps de clapet 5.For this purpose, and in a characteristic manner, the method according to the invention can consist in providing a base reinforcement 22 in which the regulated and non-regulated pipe portions 4 'are made in one piece with the circumferential wall 2 of said base armature 22 and wherein each unregulated conduit portion 4 'has, at its inner wall, two opposed wall elements 14 made at the bearings 7, 9 and forming the support means 20 for temporary positioning of a valve body 5.

De préférence, ces éléments de paroi 14 ou rebords seront d'une configuration telle qu'ils n'entravent pas le flux de fluide traversant les portions de conduits 4' concernés et n'entraînent pas de perte de charge. En outre, et comme cela ressort plus particulièrement des figures 2A et 2D, les rebords 14 peuvent se présenter au nombre de deux disposés face à face l'un à l'autre au niveau de chaque portion de conduit 4' et réalisés au niveau des parois séparant les portions de conduits régulées 4 et non régulées 4'. La forme de ces rebords 14 ainsi que leur positionnement seront choisis de manière à permettre un alignement des rainures traversantes 10 des corps de clapets 5 avec les paliers 7 et 9.Preferably, these wall elements 14 or flanges will be of a configuration such that they do not impede the flow of fluid passing through the portions of conduits 4 'concerned and do not cause loss of load. Moreover, and as is clear from Figures 2A and 2D , the flanges 14 may be present in the number of two arranged face to face to each other at each portion of duct 4 'and made at the walls separating the portions of regulated ducts 4 and unregulated 4'. The shape of these flanges 14 and their positioning will be chosen so as to allow alignment of the through grooves 10 of the valve bodies 5 with the bearings 7 and 9.

De manière caractéristique, le procédé selon l'invention peut consister à fournir une armature de base 22 dans laquelle les ensembles 21 constitués par une portion de conduit 4 régulée et une portion 19 ou une portion de conduit 4' non régulée associée à ladite portion régulée 4 sont séparés par une paroi de séparation en saillie par rapport au plan de l'armature de base 22, paroi de séparation dans laquelle est réalisé un palier 7 sous la forme d'un orifice traversant ladite paroi de séparation, ce palier constituant un palier 7 de guidage de l'axe de commande 8.Typically, the method according to the invention may consist in providing a base reinforcement 22 in which the assemblies 21 constituted by a controlled portion of duct 4 and a portion 19 or an unregulated portion of duct 4 'associated with said regulated portion 4 are separated by a separation wall projecting from the plane of the base armature 22, partition wall in which is formed a bearing 7 in the form of an orifice passing through said partition wall, this bearing constituting a bearing 7 for guiding the control shaft 8.

En outre, dans chaque ensemble 21, la portion de conduit régulée 4 peut être séparée de la portion 19 ou de la portion de conduit non régulée 4' par une paroi de séparation en saillie par rapport au plan de l'armature de base 22 et formant un palier 9 de support pour l'axe de commande 8. Ladite paroi de séparation est en saillie au niveau du côté où sont disposés les corps de clapets 5, la plaque support 1 étant de préférence plane au niveau de l'autre côté pouvant être monté sur la culasse du moteurIn addition, in each set 21, the regulated duct portion 4 can be separated from the portion 19 or the unregulated duct portion 4 'by a separation wall projecting from the plane of the base frame 22 and forming a support bearing 9 for the control shaft 8. Said partition wall is projecting at the side where the valve bodies 5 are arranged, the support plate 1 being preferably flat at the other side which can be mounted on the engine cylinder head

La figure 2B représente l'étape de montage de l'axe de commande 8 qui consiste à introduire ce dernier à travers l'ensemble des paliers 7, 8 et des rainures traversantes 10 des corps de clapets 5. L'axe de commande 8 peut être réalisé en acier ou en laiton, par exemple. Cette insertion est réalisée à partir d'une première extrémité 6 de l'armature de base 22 qui peut comprendre un palier 7 de guidage réalisé sous la forme d'un trou traversant la paroi circonférentielle 2 de ladite armature de base 22 au niveau d'une de ses extrémités 6. L'autre extrémité 6' de l'armature de base 22 peut également présenter un palier 7 de guidage de l'axe de commande 8, réalisé sous la forme d'un orifice non traversant de réception de l'extrémité d'insertion 11 de l'axe de commande 8, au niveau de la paroi circonférentielle 2 de la seconde extrémité 6' de l'armature de base 22. Dans l'étape de montage iii), l'axe de commande 8 n'est pas positionné dans sa position de montage, en effet l'extrémité d'insertion 11 de l'axe de commande 8 n'est pas introduite dans le palier 7 de guidage précité, mais est maintenue à une distance de ce dernier, permettant de réaliser ultérieurement un surmoulage de la portée 12 et de la clavette de montage 13 correspondantes.The Figure 2B represents the step of mounting the control shaft 8 which consists of introducing the latter through all the bearings 7, 8 and through grooves 10 of the valve bodies 5. The control shaft 8 can be realized in steel or brass, for example. This insertion is carried out from a first end 6 of the base frame 22 which may comprise a guide bearing 7 made in the form of a hole passing through the circumferential wall 2 of said base frame 22 at a 6. The other end 6 'of the base armature 22 may also have a bearing 7 for guiding the control shaft 8, made in the form of a non-through hole for receiving the end. 11 of the control pin 8, at the circumferential wall 2 of the second end 6 'of the base armature 22. In the mounting step iii), the control pin 8 does not is not positioned in its mounting position, in fact the insertion end 11 of the control shaft 8 is not introduced into the above-mentioned guide bearing 7, but is kept at a distance from the latter, making it possible to later over-molding the bearing surface 12 and the fitting key 13 corre spondantes.

La figure 2C représente à cet effet l'extrémité d'insertion 11 de l'axe de commande 8 après le surmoulage de la portée 12 pour le corps de clapet 5 destiné à être mis en place dans la portion de conduit régulée 4 correspondante et de la clavette de montage 13 destinée à être montée dans le palier 7 de guidage au niveau de la seconde extrémité 6' de l'armature de base 22.The Figure 2C represents for this purpose the insertion end 11 of the control shaft 8 after the overmolding of the bearing surface 12 for the valve body 5 intended to be put in place in the corresponding regulated conduit portion 4 and the key of the mounting 13 to be mounted in the guide bearing 7 at the second end 6 'of the base frame 22.

Ce surmoulage est réalisé au niveau de chaque portion de la tige formant axe de commande 8 située au niveau d'une portion de conduit non régulée 4' ou portion 19.This overmolding is performed at each portion of the control shaft 8 located at an unregulated conduit portion 4 'or portion 19.

La figure 3A représente la mise place d'un corps de clapet 5 dans la portion de conduit 4 qu'il doit réguler. Cette mise en place se fait au cours de l'étape v) du procédé, en coulissant chaque corps de clapet 5 sur l'axe de commande 8 de sa position temporaire vers sa position finale, dans une portion de conduit régulée 4.The figure 3A represents the establishment of a valve body 5 in the portion of conduit 4 that it must regulate. This installation is done during step v) of the method, by sliding each valve body 5 on the control shaft 8 from its temporary position to its final position, in a controlled portion of duct 4.

Il suffit ensuite de pousser l'axe de commande 8 jusqu'à insertion des clavettes de montage 13 dans les paliers 7 de guidage correspondants pour terminer le montage de la plaque support 1. Cette dernière étape, représentée aux figures 2D et 3A permet également de caler les corps de clapets 5 contre les parois correspondantes.It is then sufficient to push the control pin 8 until insertion of the mounting keys 13 in the corresponding guide bearings 7 to complete the mounting of the support plate 1. This last step, shown in FIGS. 2D figures and 3A also allows to wedge the valve bodies 5 against the corresponding walls.

On obtient ainsi une plaque support 1 réalisée sous la forme d'un élément d'un seul tenant dont les éléments constitutifs ne sont pas démontables. Avantageusement, les paliers 7 de guidage et les paliers 9 de support sont situés au niveau de parois de séparation des portions de conduits régulées 4 et des portions de conduits non régulées 4' ou portions 19 de l'armature de base 22 et entre deux surfaces rigides, à savoir la culasse et le collecteur d'admission 3, de sorte que leur alignement est garanti dans le temps, de même que la co-axialité des corps de paliers 5. La plaque support 1 étant prise en sandwich entre la culasse et le répartiteur, les déformations de cette plaque support 1 sont limitées, de même que le jeu pouvant subsister au niveau des clapets. En outre, le procédé selon l'invention permet donc d'obtenir une plaque support 1 présentant une durée de vie accrue.A support plate 1 is thus obtained in the form of an integral element whose constituent elements are not removable. Advantageously, the guide bearings 7 and the support bearings 9 are located at the partition walls of the portions of the controlled ducts 4 and unregulated conduit portions 4 'or portions 19 of the base frame 22 and between two rigid surfaces, namely the cylinder head and the intake manifold 3, so that their alignment is guaranteed in time , as well as the co-axiality of the bearing bodies 5. The support plate 1 being sandwiched between the yoke and the distributor, the deformations of this support plate 1 are limited, as the clearance can remain at the level of the valves . In addition, the method according to the invention thus makes it possible to obtain a support plate 1 having an increased lifetime.

Dans le cas d'une armature de base 22 dans laquelle les portions de conduits régulées 4 et non régulées 4' sont alignées entre elles (première forme de réalisation de l'invention, le procédé peut consister à réaliser, entre les étapes i) et ii), une étape de sunnoulage de joints d'étanchéité 17 sur les deux faces de l'armature de base 22, dans des rainures 18 correspondantes de ladite armature de base 22 entourant chaque ensemble constitué par une portion de conduit régulée 4 et une portion de conduit non régulée 4'.In the case of a base armature 22 in which the regulated and non-regulated 4 'pipe portions 4' are aligned with each other (first embodiment of the invention, the method may consist in carrying out, between steps i) and ii), a sunnouling step of seals 17 on both faces of the base frame 22, in corresponding grooves 18 of said base frame 22 surrounding each set consisting of a regulated portion of conduit 4 and a portion unregulated conduit 4 '.

Dans les autres formes de réalisation, qui sont décrites ci-après, le procédé peut consister à fournir une armature de base 22 dans laquelle les portions de conduits non régulées 4' sont alignées les unes aux autres et sont réalisées sur un même côté de la armature de base 22, en saillie par rapport au bord latéral dudit côté et à réaliser, entre les étapes i) et ii), une étape de surmoulage de joints d'étanchéité 17 sur les deux faces de l'annature de base 22, dans des rainures 18 correspondantes de ladite armature de base 22 et entourant, d'une part, sur la face comportant les corps de clapets 5, chaque ensemble 21' constitué par une portion de conduit régulée 4, une portion 19 et une portion de conduit non régulée 4' et, d'autre part, sur l'autre face, chaque ensemble 21 constitué par une portion de conduit régulée 4 et une portion de conduit non régulée 4'.In the other embodiments, which are described below, the method may comprise providing a base frame 22 in which the unregulated conduit portions 4 'are aligned with each other and are made on the same side of the base frame 22, projecting from the side edge of said side and to perform, between steps i) and ii), a step of overmolding seals 17 on both sides of the base annulus 22, in corresponding grooves 18 of said base armature 22 and surrounding, on the one hand, on the face comprising the valve bodies 5, each assembly 21 'constituted by a controlled portion of duct 4, a portion 19 and a non-duct portion; 4 'and, on the other hand, on the other side, each assembly 21 consisting of a controlled portion of conduit 4 and an unregulated conduit portion 4'.

L'étanchéité entre chaque ensemble 21, 21' et les orifices correspondants de la culasse ainsi que les conduits correspondants du collecteur d'admission 3 est ainsi assurée lors du montage de la plaque support 1 entre le collecteur d'admission 3 et la culasse, par écrasement desdits joints d'étanchéité 17. La plaque support 1 comporte ainsi également une fonction d'étanchéité, en plus de sa fonction de régulation du flux gazeux. Elle peut également absorber les vibrations entre le répartiteur et la culasse et limiter les déformations dues à ces vibrations.The seal between each assembly 21, 21 'and the corresponding orifices of the cylinder head and the corresponding ducts of the intake manifold 3 is thus ensured during the mounting of the support plate 1 between the intake manifold 3 and the cylinder head, by crushing said seals 17. The support plate 1 thus also has a sealing function, in addition to its function of regulating the gas flow. It can also absorb the vibrations between the distributor and the cylinder head and limit the deformations due to these vibrations.

Selon la configuration du collecteur d'admission, la plaque support peut présenter différentes formes, notamment en ce qui concerne le positionnement des portions de conduits non régulées 4' par rapport aux portions de conduits régulées 4 qui sont alignées sur l'armature de base 22. Ainsi, et de manière caractéristique le procédé selon l'invention peut consister à fournir une armature de base 22 dans laquelle les portions de conduits non régulées 4' sont réalisées chacune en regard d'une portion de conduit régulée 4. Une plaque support 1 réalisée à partir d'une telle armature de base 22 est représentée aux figures 5A et 5B.Depending on the configuration of the intake manifold, the support plate may have different shapes, particularly as regards the positioning of the unregulated pipe portions 4 'relative to the regulated pipe portions 4 which are aligned with the base plate 22 Thus, and typically the method according to the invention may consist in providing a base frame 22 in which the unregulated conduit portions 4 'are each made opposite a regulated conduit portion 4. A support plate 1 made from such a base reinforcement 22 is shown in FIGS. Figures 5A and 5B .

Une troisième forme de réalisation est représentée aux figures 6A et 6B et est obtenue en fournissant une armature de base 22 dans laquelle les portions de conduits non régulées 4' sont réalisées chacune en regard d'une portion 19 de l'armature de base 22 formant zone de réception temporaire d'un corps de clapet 5.A third embodiment is shown in Figures 6A and 6B and is obtained by providing a base frame 22 in which the unregulated conduit portions 4 'are each made opposite a portion 19 of the base frame 22 forming a temporary receiving zone of a valve body 5.

Comme cela est représenté sur la figure 2C, le procédé peut consister à réaliser, sur l'axe de commande 8, des portées 12 comportant deux ailes sensiblement planes s'étendant latéralement, de part et d'autre de la tige formant l'axe de commande 8 et à fournir des corps de clapets 5 dont la rainure traversante 10 présente une forme susceptible de coopérer avec lesdites portées 12. Cette forme des portées 12 permet de réaliser une manoeuvre correcte des corps de clapets 5 par l'intermédiaire de l'axe de commande 8. De préférence, les portées 12 présentent une longueur inférieure à la longueur de la rainure traversante 10 des corps de clapets 5, mais toutefois supérieure à la moitié de la longueur de ces dernières. Cela permet d'obtenir un entraînement correct des clapets avec un minimum de matière surmoulée.As shown on the Figure 2C the method may consist in producing, on the control spindle 8, spans 12 comprising two substantially plane wings extending laterally, on either side of the rod forming the control spindle 8, and providing bodies of valves 5 whose through groove 10 has a shape capable of cooperating with said bearing surfaces 12. This form of the bearing surfaces 12 allows a correct operation of the valve bodies 5 via the control pin 8. Preferably, the spans 12 have a length less than the length of the through groove 10 of the valve bodies 5, but however greater than half the length of the latter. This makes it possible to obtain a correct drive of the valves with a minimum of overmoulded material.

En outre, le procédé peut consister à réaliser chaque clavette de montage 13 par l'application d'une surépaisseur sur une portion de la tige formant l'axe de commande 8, ladite portion présentant une longueur sensiblement égale à la profondeur du palier 7 correspondant et un diamètre tel que la clavette de montage 13 est susceptible d'être logée dans ce dernier.In addition, the method may consist in producing each mounting key 13 by applying an extra thickness on a portion of the rod forming the control shaft 8, said portion having a length substantially equal to the depth of the corresponding bearing 7 and a diameter such that the mounting key 13 can be accommodated therein.

Comme représenté dans les figures 2C, 3A et 3B, le procédé peut consister à réaliser chaque clavette de montage 13 d'un seul tenant avec la portée 12 correspondante.As shown in Figures 2C , 3A and 3B , the method may consist in making each mounting key 13 in one piece with the corresponding scope 12.

Les figures 1, 2, 5 et 6 illustrent une plaque support 1 pour corps de clapets, de structure générale plane, réalisée selon le procédé décrit ci-dessus, destinée à être montée entre la culasse d'un moteur à combustion interne et le répartiteur ou collecteur d'admission 3, et à réguler le flux gazeux transitant des tubulures du collecteur d'admission 3 dans les orifices d'entrée de la culasse, ladite plaque support étant de structure sensiblement plane, au moins au niveau de son côté destiné à venir en contact avec la culasse et étant constituée par au moins une paire de portions de conduits régulées 4 comportant un corps de clapet 5 et formant un passage d'écoulement régulé et des portions de conduits non régulées 4' ne comportant pas de corps de clapet 5 et formant passage d'écoulement non régulé, lesdites portions de conduits régulées 4 et non régulées 4' reliant fluidiquement, à l'état monté de ladite plaque support 1, les tubulures du collecteur d'admission 3 aux orifices d'entrée de la culasse, les corps de clapets 5 étant commandés par un axe de commande 8.The figures 1 , 2 , 5 and 6 illustrate a support plate 1 for valve bodies, of general planar structure, produced according to the described method above, intended to be mounted between the cylinder head of an internal combustion engine and the distributor or intake manifold 3, and to regulate the gaseous flow passing through the manifolds of the intake manifold 3 into the inlet ports of the the yoke, said support plate being of substantially planar structure, at least at its side intended to come into contact with the yoke and being constituted by at least one pair of regulated conduit portions 4 comprising a valve body 5 and forming a controlled flow passage and unregulated conduit portions 4 'having no valve body 5 and forming an unregulated flow passage, said regulated 4 and unregulated 4' conduit portions fluidly connecting, in the mounted state of said support plate 1, the manifolds of the intake manifold 3 to the inlet ports of the cylinder head, the valve bodies 5 being controlled by a control pin 8.

Cette plaque support 1 présente

  • des paliers 7 de guidage pour l'axe de commande 8 alignés entre eux et réalisés sous la forme d'orifices traversant des parois de séparation séparant chaque ensemble 21 constitué par une portion de conduit régulée 4 et une portion 19 de l'armature de base 22 formant zone de réception temporaire d'un corps de clapet 5 ou une portion de conduit 4' non régulée associée à ladite portion régulée 4 et alignée avec l'ensemble desdites portions régulées,
  • des paliers de support 9 de l'axe de commande 8 réalisés par une paroi de séparation séparant, au niveau de chaque ensemble 21, la portion de conduit régulée 4 de la portion 19 ou de la portion de conduit non régulée 4' alignée avec l'ensemble desdites portions de conduits régulées 4 et étant en saillie par rapport au plan de l'armature de base 22, et
  • des joints d'étanchéité 17, sur les deux faces de la plaque support 1, assurant l'étanchéité de cette dernière.
This support plate 1 presents
  • guide bearings 7 for the control pin 8 aligned with each other and made in the form of orifices passing through partition walls separating each assembly 21 constituted by a controlled portion of conduit 4 and a portion 19 of the base reinforcement 22 forming a temporary reception zone of a valve body 5 or an unregulated conduit portion 4 'associated with said regulated portion 4 and aligned with all of said regulated portions,
  • support bearings 9 of the control shaft 8 made by a separating wall separating, at each assembly 21, the regulated duct portion 4 of the portion 19 or the unregulated conduit portion 4 'aligned with the all of said regulated duct portions 4 and projecting from the plane of the base frame 22, and
  • seals 17, on both sides of the support plate 1, sealing the latter.

En outre, en vue de sa fixation sur le collecteur d'admission 3, la plaque support 1 peut comprendre des moyens 15 de fixation par déformation élastique sur des ergots 16 correspondants disposés au niveau des extrémités des tubulures du collecteur d'admission 3. Ces moyens 15 de fixation peuvent être sous forme de pattes s'étendant latéralement par rapport à l'axe longitudinal de la plaque support 1, comme représenté sur la figure 1, et coopérant avec les ergots 16 correspondants réalisés au niveau des parois externes des tubulures du collecteur d'admission 3 (cf. figures 4A et 4B).In addition, for attachment to the intake manifold 3, the support plate 1 may comprise means 15 for fixing by elastic deformation on corresponding lugs 16 disposed at the ends of the manifolds of the manifold intake 3. These fixing means may be in the form of tabs extending laterally with respect to the longitudinal axis of the support plate 1, as shown in FIG. figure 1 and cooperating with the corresponding lugs 16 made at the outer walls of the manifolds of the intake manifold 3 (cf. Figures 4A and 4B ).

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des drivers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention telle que définie dans la revendication 1.Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the driver elements or by substitution of technical equivalents, without departing from the scope of protection of the invention as defined in claim 1.

Claims (12)

  1. Method for producing a support plate (1) for valve bodies (5) with a transverse groove (10) for mounting a control axis (8) and with a generally planar configuration, designed to be mounted between the cylinder head of a thermal engine of a motor vehicle and the distributor or inlet manifold (3), said support plate (1) having an even number of pipe portions (4, 4') designed to connect fluidly the pipes of the inlet manifold (3) to the inlet openings of the cylinder head, each pair of pipe portions (4, 4') comprising a portion of controlled pipe (4) with a valve body (5) and forming a controlled flow passage and another adjacent portion of non-controlled pipe (4') not comprising a valve body (5) and forming a non-controlled flow passage, the controlled portions of the pipe (4) being aligned relative to one another and spaced apart from one another,
    the method being characterised in that it consists of
    i) providing a base armature (22) with an almost planar configuration and extending longitudinally which comprises an even number of pipe portions (4, 4') formed within the thickness of said base armature (22),
    in which the portions of controlled pipes (4) are aligned relative to one another and are each adjacent to two bearings (7, 9) arranged diametrically opposite one another for supporting and guiding the control axis (8) of the valve bodies (5),
    in which each portion of controlled pipe (4) is connected to a portion (19) of the base armature (22) forming the temporary reception zone of a valve body (5), said portions (19) being aligned with the portions of controlled pipes (4), such that two consecutive portions of controlled pipes (4) are separated from one another by a portion (19) of the base armature (22),
    and in which each portion (19) comprises a support means (20) for the temporary positioning of a valve body (5),
    said base armature (22) having at a first end (6) a bearing (7) adjacent to one portion (19) and at the other end (6') a bearing (7) adjacent to a portion of controlled pipe (4),
    ii) arranging a valve body (5) on the support means (20) on each portion (19) of the base armature (22), such that the assembly of transverse grooves (10) of the valve bodies (5) are aligned relative to one another and with bearings (7 and 9),
    iii) mounting the control axis (8) in the form of a rod through the bearings (7 and 9) and the transverse groove (10) of each valve body (5) until the insertion end (11) of the said rod is located close to the bearing (7) of the second end (6') of the base armature (22),
    iv) moulding on each portion of controlled pipe (4) on the control axis (8), on the one hand, a bearing support (12) for a valve body (5) and, on the other hand, a mounting insert (13) for mounting in a corresponding bearing (7),
    v) mounting each valve body (5) on its corresponding bearing support (12) by sliding each valve body (5) on the control axis (8) from its position at the portion (19) of the base armature (22) towards the adjacent portion of controlled pipe (4) at which the control axis (8) is provided with a bearing support (12), and
    vi) inserting the mounting inserts (13) in the corresponding bearings (7) by sliding the control axis (8) until it abuts with the bearing (7) situated on the second end (6') of the base armature (22).
  2. Method according to claim 1, characterised in that it consists of providing a base armature (22) in which the portions of non-controlled pipe (4') are formed in portions (19) of the base armature (22) within the thickness of the latter.
  3. Method according to claim 2, characterised in that it consists of providing a base armature (22) in which the portions of controlled pipes (4) and non-controlled pipes (4') are produced in one piece with the circumferential wall (2) of said base armature (22), and in which each portion of non-controlled pipe (4') has, on its internal wall, two opposite wall elements (14) formed on the bearings (7, 9) and forming the support means (20) for the temporary positioning of a valve body (5).
  4. Method according to any one of claims 1 to 3, characterised in that it consists of providing a base armature (22) in which the assemblies (21) formed by a portion of controlled pipe (4) and a portion (19) or a portion of non-controlled pipe (4') connected to said controlled portion (4) are separated by a separation wall projecting in relation to the plane of the base armature (22), the separation wall in which a bearing (7) is formed in the shape of an opening traversing said separation wall, said bearing forming a guide bearing (7) of the control axis (8).
  5. Method according to claim 4, characterised in that in each assembly (21), the portion of controlled pipe (4) is separated from portion (19) or the portion of non-controlled pipe (4') by a separation wall projecting in relation to the plane of the base armature (22) and forming a support bearing (9) for the control axis (8).
  6. Method according to claim 2 or any one of claims 3 to 5, insofar as it relates to claim 2, characterised in that it consists of performing between stages i) and ii) a stage of moulding sealing joints (17) on the two surfaces of the base armature (22), in corresponding grooves (18) of the said base armature (22) surrounding each assembly formed by a controlled portion of pipe (4) and a non-controlled portion of pipe (4').
  7. Method according to claim 1, characterised in that it consists of providing a base armature (22) in which the portions of non-controlled pipe (4') are aligned relative to one another and are formed on the same side of the base armature (22), which projects in relation to the lateral edge of said side, and in that it consists of performing between stages i) and ii) a stage of moulding sealing joints (17) on the two surfaces of the base armature (22), in the corresponding grooves (18) of the said base armature (22) and surrounding, on the one hand, on the surface comprising the valve bodies (5), each assembly (21') comprising a portion of controlled pipe (4), a portion (19) and a portion of non-controlled pipe (4') and, on the other hand, on the other surface, each assembly (21) formed by a portion of controlled pipe (4) and a portion of non-controlled pipe (4').
  8. Method according to claim 7, characterised in that it consists of providing a base armature (22) in which the portions of non-controlled pipes (4') are each formed opposite a portion of controlled pipe (4).
  9. Method according to claim 7, characterised in that it consists of providing a base armature (22) in which the portions of non-controlled pipes (4') are each formed opposite a portion (19) of the base armature (22) forming a temporary reception zone for a valve body (5).
  10. Method according to any one of claims 1 to 9, characterised in that it consists of forming on the control axis (8) bearing supports (12) which comprise two virtually planar flaps extending laterally on either side of the rod forming the control axis (8), and in that it consists of providing valve bodies (5), the transverse groove (10) of which has a shape which is designed to cooperate with said bearing supports (12).
  11. Method according to any one of claims 1 to 10, characterised in that it consists of producing each mounting insert (13) by applying an excessive thickening on a portion of the rod forming the control axis (8), said portion having a length that is almost equal to the depth of the corresponding bearing (7) and a diameter such that the mounting insert (13) is able to be housed in the latter.
  12. Method according to claims 10 and 11, characterised in that it consists of forming each mounting insert (13) in one piece with the corresponding bearing support (12).
EP09305061A 2008-02-05 2009-01-22 Production process of a support plate for throttle bodies and support plate Active EP2088303B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0850726A FR2927124B1 (en) 2008-02-05 2008-02-05 PROCESS FOR PRODUCING A SUPPORT PLATE FOR CHAMPS OF FLAP AND SUPPORT PLATE

Publications (2)

Publication Number Publication Date
EP2088303A1 EP2088303A1 (en) 2009-08-12
EP2088303B1 true EP2088303B1 (en) 2010-12-01

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EP09305061A Active EP2088303B1 (en) 2008-02-05 2009-01-22 Production process of a support plate for throttle bodies and support plate

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US (1) US8082900B2 (en)
EP (1) EP2088303B1 (en)
JP (1) JP2009185808A (en)
DE (1) DE602009000380D1 (en)
FR (1) FR2927124B1 (en)

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FR2952408B1 (en) * 2009-11-12 2011-12-30 Mark Iv Systemes Moteurs Sa PROCESS FOR MANUFACTURING AN INTAKE MANIFOLD AND CORRESPONDING MANIFOLD
JP2011220143A (en) * 2010-04-06 2011-11-04 Denso Corp Air-intake apparatus of internal combustion engine
US8590501B1 (en) * 2010-05-18 2013-11-26 Managed Programs LLC Variable intake system and method
FR2960806B1 (en) * 2010-06-04 2012-06-22 Mann & Hummel Gmbh METHOD FOR MANUFACTURING A VALVE VALVE ASSEMBLY FOR AN AIR INTAKE MANIFOLD AND REALIZED ASSEMBLY
FR2983250B1 (en) 2011-11-28 2013-12-20 Valeo Sys Controle Moteur Sas GAS INTAKE SYSTEM FOR A VEHICLE ENGINE
DE102012203232A1 (en) * 2012-03-01 2013-09-05 Mahle International Gmbh Internal combustion engine with fresh gas distributor
USD858579S1 (en) * 2018-03-29 2019-09-03 Wen Chen Air flap
CN110842486A (en) * 2019-11-28 2020-02-28 安徽金亿新材料股份有限公司 Processing-free powder metallurgy valve guide pipe and processing method and application thereof
CN119260324B (en) * 2024-12-06 2025-05-09 大国科工(天津)智能科技有限公司 Processing method of valve plate of strong-sealing energy-saving butterfly valve

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JP3319645B2 (en) * 1994-02-17 2002-09-03 ヤマハ発動機株式会社 Engine intake control device
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DE19936470A1 (en) * 1999-08-03 2001-02-08 Mann & Hummel Filter Intake pipe system
FR2797931B1 (en) * 1999-08-31 2001-10-05 Mark Iv Systemes Moteurs Sa DEVICE FOR CONTROLLING THE FLOW IN A DUCT PORTION OR A PASSAGE AND MANIFOLD COMPRISING SUCH A DEVICE
JP3695268B2 (en) * 1999-12-28 2005-09-14 日産自動車株式会社 On-off valve device
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FR2891886B1 (en) * 2005-10-07 2010-04-02 Mark Iv Systemes Moteurs Sa CLAMP CONTROL DEVICE AND ADMISSION MANIFOLD COMPRISING AT LEAST ONE SUCH DEVICE

Also Published As

Publication number Publication date
FR2927124A1 (en) 2009-08-07
DE602009000380D1 (en) 2011-01-13
EP2088303A1 (en) 2009-08-12
JP2009185808A (en) 2009-08-20
US20090194060A1 (en) 2009-08-06
FR2927124B1 (en) 2013-02-22
US8082900B2 (en) 2011-12-27

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