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EP1318357B1 - Flow rate controller - Google Patents

Flow rate controller Download PDF

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Publication number
EP1318357B1
EP1318357B1 EP02026210A EP02026210A EP1318357B1 EP 1318357 B1 EP1318357 B1 EP 1318357B1 EP 02026210 A EP02026210 A EP 02026210A EP 02026210 A EP02026210 A EP 02026210A EP 1318357 B1 EP1318357 B1 EP 1318357B1
Authority
EP
European Patent Office
Prior art keywords
spring
flap
flow delivery
delivery controller
controller according
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.)
Expired - Lifetime
Application number
EP02026210A
Other languages
German (de)
French (fr)
Other versions
EP1318357A2 (en
EP1318357A3 (en
Inventor
Emil Siegwart
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.)
Siegwart Emil
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to SI200230857T priority Critical patent/SI1318357T1/en
Publication of EP1318357A2 publication Critical patent/EP1318357A2/en
Publication of EP1318357A3 publication Critical patent/EP1318357A3/en
Application granted granted Critical
Publication of EP1318357B1 publication Critical patent/EP1318357B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/146—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with springs

Definitions

  • the invention relates to a flow rate regulator for an air line of an air conditioner in which a flap is mounted in a housing on an axis arranged near the cross-sectional central axis, which is angled near the axis, with her one leg in the open position substantially parallel to the line axis in the flow direction to the rear and its other leg is aligned in the closed position substantially at right angles to the line axis, and a spring element held on a rod passing through the housing wall acts on a lever arm attached to the flap in such a way that the force application point describes a circular arc on rotation of the flap from the open position into the closed position, which is inclined at the beginning to the spring force direction than at the end, and the rod is provided in a sheath disposed on the outside of the housing wall with a transverse part, which has a thread for a threaded pin which is supported on a base part of the shell fixed to the housing wall and so a desired, a specific flow rateGarlurdenden to set appropriate bias of the spring element allowed
  • Such a flow regulator is known through use.
  • the angled flap as a control element is known from the DE 23 33 694 .
  • DE 28 35 052 and DE 33 32 529 is known from the DE 23 33 694 .
  • the invention has for its object to make the above-mentioned flow rate controller without affecting its functional accuracy in a wider scope usable.
  • a further spring element is provided parallel to the spring element, which is mounted on a housing wall passing through the rod, which is arranged in a outside on the housing wall, a scale having coat with a cross member, the one Having threaded for a threaded pin which is supported on a housing wall fixed to the base part of the shell and so, in addition to the former spring element or instead, a desired, a certain larger flow amount to be adjusted corresponding bias of the other spring element allows set, wherein the rod is also provided with a freely adjustable free displaceability in the transverse part and / or with the transverse part.
  • the two spring elements of which optionally one left out of action or in addition or instead of the former can be put into operation, a more accurate adjustment of the force exerted by the spring element or the spring elements on the flap force to be applied to adjust a certain flow rate Force possible and thus a more precise control than with only one spring.
  • the control range can be extended to smaller as well as larger flow rates.
  • the former spring element can obtain a somewhat flatter characteristic and thus regulate sensitively in the region of lower flow rates.
  • another spring element results in a comparatively steep characteristic, which at larger flow rates, i. from the open position far angled, the closed position approximated flap is needed.
  • the further spring element will additionally be put into use. In principle, it could also take the place of the former spring element, which could then be shut down in about the same way as provided for the further spring element.
  • the spring characteristic of the further spring element can be selected in each case according to the operation provided so far, that is substantially steeper than the spring characteristic curve and with additional use if necessary equal or even flatter, but usually also steeper when replacing the former spring element. With even more spring elements an even more curved and adapted overall spring characteristic could be generated.
  • the former and / or the further spring element can be formed by a plurality of juxtaposed coil springs of different characteristics. In this way, further approximations of the force of the spring element to the required control force are possible. Because the straightness of the spring characteristics, which in turn results in the proposed composite coil springs a straight line characteristic, so far as the composite spring could also be replaced by a single spring is not available in practice so.
  • the holder of the spring element on the rod should include a joint part, so that a clean, not superimposed by bending forces, spring removal comes about.
  • the hinge part consists of a hinged to the rod sleeve into which a coupling piece is screwed with a spring coils adapted external thread on which the end of the coil spring is screwed, or which has a spring coils adapted internal thread into which the end of the coil spring is screwed in immediately.
  • the flap is mounted in the lying on the shorter sides of the rectangle housing walls.
  • the two spring elements can here in, even greater, distance from each other from a lying on one of the longer sides of the rectangle sides housing wall, which is penetrated by the rods of the spring elements, in each case attack on a lever arm attached to the flap in the manner mentioned.
  • An inventive development consists in the fact that the lying on the longer sides of the rectangular housing walls are indented by multiple flat edging in the flow cross-section, preferably a central portion extends parallel to the housing axis and the flap between the parallel portions of the two opposite housing walls is arranged.
  • the bends give the housing walls rigidity and dimensional accuracy.
  • the indentations are also advantageous in that they increase the flow velocity at the location of the flap, thus improving the response of the flap, at least in the areas of lower preshrubs. Also, by increasing the flow velocity, the cross-sectional profile of the flow is made uniform.
  • the middle portion is in each case between a shorter, oblique portion and a longer, less inclined portion of the housing wall, and the shorter, more oblique portion of the housing wall is on the side of the opening position obliquely forward flap limb front and on the side the posterior flap leg located behind.
  • each flap leg can interact with a housing wall section parallel to the flow direction.
  • the two parallel sections overlap.
  • the same sheet metal part can be used in relation to the flow direction, the reverse arrangement.
  • the reduction of the flow cross section through the indentations is, for example, 10 to 15%, preferably 12 to 13%.
  • the flow rate regulator consists essentially of a housing 2 arranged in a flap 2, which is held by spring force in a flow cross-section more or less occlusive position.
  • the housing 1 is composed of two flat housing walls 4 and two double flat folded housing walls 5 together. All housing walls 4 and 5 are angled at the input and the output of the flow rate controller to a circumferential flange 6. With the two flanges of the flow rate regulator is inserted into an air duct of the same rectangular cross-section.
  • the bent housing walls are each divided into a shorter oblique section 7, a parallel to the axis of the flow amount controller section 8 and a longer oblique section 9. With each angled at a section 7,8 or 9 sheet metal sections 10,11 and 12, between which narrow column 13 remain, the housing walls 5 abut the housing walls 4. Rivets 14 hold them together.
  • the flap 2 is mounted on the housing walls 4. It has an angular cross-section. In the angle is its axis 15, which pierces the housing walls 4 and ends in mounted on the outside of the housing walls 4 bearings 16.
  • a respective tension spring 21 and 22 mounted, which has a holder as follows:
  • a threaded nozzle 23 On the one housing wall 5 sits a threaded nozzle 23 by engaging with a small flat flange under the housing wall, it is penetrated and held by a nut 24. About the nut 24, a transparent plastic sleeve 25 is screwed onto the socket 23. It is closed at the top with a plug 26.
  • the per se tubular stub 23 is provided with a, slightly protruding, insert 27 made of plastic, which serves with a diameter of a rod 28 adapted bore as a seat and guide for the rod 28.
  • a flat-cylindrical cross member 29 is disposed on the rod 28 and secured by a fixing screw 30.
  • the cross member has a thread in which a provided with a Allen 31 threaded pin 32 is seated.
  • the grub screw 32 abuts when train on the rod 28 on the insert 27 and thus sets the position of the rod with respect to the housing wall 5, further or less far pulled out firmly. After removing the plug 26 can be changed by turning the threaded pin 32 by means of a Allen key this position.
  • the tension spring 21 and 22 is attached via a hinge part 33.
  • the hinge part 33 has the shape of a (in Fig. 1 incompletely shown) sleeve.
  • the rod 28 projects just into one half of the sleeve and is connected by a transverse pin 34 hinged to her.
  • a coupling piece 35 is screwed into the sleeve, which protrudes approximately halfway and is provided with a tension spring 21 and 22 adapted external thread 36, so that the end of the tension spring 21 and 22 could be screwed on it.
  • the coupling piece 35 is in Fig. 6 shown on a larger scale alone.
  • the right tension spring 22 has a steeper spring characteristic than the left tension spring 21. It remains inactive for smaller flow amounts to be regulated by the fixing screw 30 is not tightened on its rod 28 and thereby the rod 28 can slide in the cross member 29.
  • the cross member 29 is brought into the lower position in the drawing, and the rod 28 is compared to the other rod 28 extends slightly upwards, so that it is not pulled out of the cross member when the tension spring 22 does not lengthen during pivoting of the flap and Instead, the rod 28 entrains.
  • the transparent plastic sleeves 25 are provided with a, in Fig. 2 drawn, provided scale, by means of which the desired devisregelnde flow rate can be adjusted by appropriate adjustment of the cross member 29 and thus bias of the tension springs 21,22.
  • the tension spring 21 alone, ie with inactive tension spring 22, flow rates of 50 m 3 / h can be set to 100 m 3 / h.
  • the tension spring 21 is placed in its largest intended bias and the tension spring 22 is activated by unscrewing the plastic sleeve 25 and the fixing screw 30 is tightened, for which the correct position of the cross member 29 on the rod 28 by a Fixierschraubenexcellent receiving indentation can be ensured in the rod 28.
  • the adjustment of the cross member 29 by means of the attached to the transparent plastic sleeve 25 scale is then made in turn with assumed plug 26 by turning the threaded pin 32.
  • the flow rate controller is set to 200 m 3 / h.
  • the flap 2 is due to their angulation and stabilization of this angulation by the metal plates 18 to a large extent torsionally rigid.
  • the asymmetrical introduction of force solely by the tension spring 21 or stronger by the tension spring 22 is readily possible.
  • the axis 15 can be dimensioned correspondingly weak.
  • pneumatic vibration dampers 38 are hinged at 39, the other hand at 40 to the flap 2 are hingedly connected.
  • Fig. 4 shows the construction in question on a larger scale and with a simpler mount:
  • the spring element 41 is composed of two tension springs 42 and 43 of different spring characteristic.
  • Fig. 3 shows the hooked to the button, weaker springs 42 pulled out more strongly than the other two, attached to the holder of the spring element 41 tension springs 43rd The designated by 44 spring element after Fig. 5
  • the tie rod 45 consists of a bore 46 in the coupling piece 35 slidably passing through and held at the other end of the weaker tension spring 42 cap screw. The head screw is held in place by screwing it into a part 47 which is in principle the same as the coupling piece 35.
  • the stronger tension spring 43 alone is then effective and the spring characteristic is steeper. In practice, however, instead of a Knicks results in a whole curved spring characteristic. It could also be the weaker tension spring 42 is arranged in connection to the hinge part 33 and the tie rod 45 there screwed into the coupling piece 35.
  • Fig. 1 shows the flap 2 in the closed position, ie at the lowest set flow rate and highest form.
  • the open position ie the other end position
  • the rearward leg 50 of the flap 2 is located on the consoles 37 and the other leg 51 is obliquely forward. Since in each position of the flap 2 of the legs 51 is more strongly flows than the leg 50, the flow seeks the flap 2 against the force of the spring elements, ie the tension springs 21 and 22 in Fig. 2 or the spring elements 41 in Fig. 3 , close.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Flow Control (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Air-Flow Control Members (AREA)
  • Vehicle Body Suspensions (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Lift Valve (AREA)

Abstract

The housing (1) contains a flap (2) mounted on an angled axle (15) with one arm (50) parallel, in an open position, with the pipe's axis, in a backward flow direction; and the other arm (51), in a closed position, at right angles to the pipe's axis. Two parallel spring elements (21) are attached to a bar (28) penetrating the housing wall (5) and grip the lever arm (17) fixed to the flap. The bar has a scale on its casing (25) on the outer housing wall, with a transverse part (29) possessing a thread for a threaded pin (32) supported on a casing's base part (23,27). The bar is freely movable in and or with the transverse part.

Description

Die Erfindung betrifft einen Strömungsmengenregler für eine Luftleitung einer Klimaanlage, bei dem in einem Gehäuse eine Klappe auf einer nahe der Querschnittsmittelachse angeordneten Achse gelagert ist, die nahe der Achse gewinkelt ist, wobei ihr einer Schenkel in Öffnungsstellung im wesentlichen parallel zur Leitungsachse in Strömungsrichtung nach hinten und ihr anderer Schenkel in Schließstellung im wesentlichen rechtwinklig zur Leitungsachse ausgerichtet ist,
und ein an einer die Gehäusewand durchsetzenden Stange gehaltenes Federelement an einem an der Klappe befestigten Hebelarm derart angreift, dass der Kraftangriffspunkt bei Drehung der Klappe aus der Öffnungsstellung in die Schließstellung einen Kreisbogen beschreibt, der am Anfang schräger zur Federkraftrichtung steht als am Ende,
und die Stange in einem außen auf der Gehäusewand angeordneten, eine Skala aufweisenden Mantel mit einem Querteil versehen ist, das ein Gewinde für einen Gewindestift aufweist, der auf einem an der Gehäusewand befestigten Basisteil des Mantels abgestützt ist und so eine gewünschte, einer bestimmten einzuregelnden Strömungsmenge entsprechende Vorspannung des Federelements einzustellen erlaubt.The invention relates to a flow rate regulator for an air line of an air conditioner in which a flap is mounted in a housing on an axis arranged near the cross-sectional central axis, which is angled near the axis, with her one leg in the open position substantially parallel to the line axis in the flow direction to the rear and its other leg is aligned in the closed position substantially at right angles to the line axis,
and a spring element held on a rod passing through the housing wall acts on a lever arm attached to the flap in such a way that the force application point describes a circular arc on rotation of the flap from the open position into the closed position, which is inclined at the beginning to the spring force direction than at the end,
and the rod is provided in a sheath disposed on the outside of the housing wall with a transverse part, which has a thread for a threaded pin which is supported on a base part of the shell fixed to the housing wall and so a desired, a specific flow rate eingelurdenden to set appropriate bias of the spring element allowed.

Ein solcher Strömungsmengenregler ist durch Benutzung bekannt. Die gewinkelte Klappe als Regelelement ist bekannt aus den DE 23 33 694 , DE 24 48 271 , DE 26 18 037 , DE 27 58 352 , DE 28 23 735 , DE 28 35 052 und DE 33 32 529 .Such a flow regulator is known through use. The angled flap as a control element is known from the DE 23 33 694 . DE 24 48 271 . DE 26 18 037 . DE 27 58 352 . DE 28 23 735 . DE 28 35 052 and DE 33 32 529 ,

Der Erfindung liegt die Aufgabe zugrunde, den eingangs genannten Strömungsmengenregler ohne Beeinträchtigung seiner Funktionsgenauigkeit in einem erweiterten Umfang nutzbar zu machen.The invention has for its object to make the above-mentioned flow rate controller without affecting its functional accuracy in a wider scope usable.

Gemäß der Erfindung wird dieser Zweck erfüllt, indem parallel zu dem Federelement ein weiteres Federelement vorgesehen ist, das an einer die Gehäusewand durchsetzenden Stange gehaltert ist, die in einem außen auf der Gehäusewand angeordneten, eine Skala aufweisenden Mantel mit einem Querteil versehen ist, das ein Gewinde für einen Gewindestift aufweist, der auf einem an der Gehäusewand befestigten Basisteil des Mantels abgestützt ist und so, zusätzlich zu dem ersteren Federelement oder statt dessen, eine gewünschte, einer bestimmten größeren einzuregelnden Strömungsmenge entsprechende Vorspannung des weiteren Federelements einzustellen erlaubt,
wobei für die Stange außerdem eine wahlfrei einzurichtende freie Verschiebbarkeit in dem Querteil und/oder mit dem Querteil vorgesehen ist.According to the invention, this purpose is fulfilled by a further spring element is provided parallel to the spring element, which is mounted on a housing wall passing through the rod, which is arranged in a outside on the housing wall, a scale having coat with a cross member, the one Having threaded for a threaded pin which is supported on a housing wall fixed to the base part of the shell and so, in addition to the former spring element or instead, a desired, a certain larger flow amount to be adjusted corresponding bias of the other spring element allows set,
wherein the rod is also provided with a freely adjustable free displaceability in the transverse part and / or with the transverse part.

Mit den beiden Federelementen, von denen wahlfrei das eine außer Funktion gelassen oder zusätzlich oder statt des ersteren in Funktion genommen werden kann, ist eine genauere Anpassung der durch das Federelement bzw. die Federelemente auf die Klappe ausgeübten Kraft an die zur Einregelung einer bestimmten Strömungsmenge aufzubringende Kraft möglich und damit eine genauere Regelung als mit nur einer Feder. Zugleich kann der Regelbereich auf kleinere wie auch auf größere Strömungsmengen erweitert werden. Das erstere Federelement kann eine etwas flachere Kennlinie erhalten und damit im Bereich geringerer Strömungsmengen feinfühlig regeln. Mit dem hinzukommenden weiteren Federelement entsteht eine vergleichsweise steile Kennlinie, die bei größeren Strömungsmengen, d.h. aus der Öffnungsstellung weit herausgewinkelter, der Schließstellung angenäherter Klappe benötigt wird.With the two spring elements, of which optionally one left out of action or in addition or instead of the former can be put into operation, a more accurate adjustment of the force exerted by the spring element or the spring elements on the flap force to be applied to adjust a certain flow rate Force possible and thus a more precise control than with only one spring. At the same time, the control range can be extended to smaller as well as larger flow rates. The former spring element can obtain a somewhat flatter characteristic and thus regulate sensitively in the region of lower flow rates. With the addition of another spring element results in a comparatively steep characteristic, which at larger flow rates, i. from the open position far angled, the closed position approximated flap is needed.

Um die Stange in dem zu dem weiteren Federelement gehörigen Querteil frei verschiebbar zu machen, braucht nur das Querteil durch eine Fixierschraube auf der Stange festzuhalten sein, die erst vor Ort bei Bedarf angezogen wird oder, umgekehrt, bei Nichtbedarf gelockert wird.
Man kann aber auch stattdessen oder zusätzlich einen freien Verschiebeweg des Querteil ohne Abstützung durch den Gewindestift vorsehen, dies allerdings auf Kosten des in dem Mantel vorhandenen Spielraums.In order to make the rod freely movable in the cross member belonging to the further spring element, only the cross member needs to be fixed by a fixing screw on the rod, which is tightened on site only when needed or, vice versa, loosened when not in use.
But you can also instead or additionally provide a free displacement of the cross member without support by the grub screw, but this at the expense of existing in the jacket clearance.

Das weitere Federelement wird in der Regel, wie gesagt, zusätzlich in Gebrauch genommen werden. Grundsätzlich könnte es aber auch an die Stelle des ersteren Federelements treten, das dann etwa in gleicher Weise stillgelegt werden könnte wie für das weitere Federelement vorgesehen. Die Federkennlinie des weiteren Federelements kann jeweils nach der insoweit vorgesehenen Betriebsweise gewählt werden, d.h. bei Ersatz des ersteren Federelements wesentlich steiler als dessen Federkennlinie und bei zusätzlichem Gebrauch ggf. gleich oder sogar flacher, in der Regel aber ebenfalls steiler.
Mit noch weiteren Federelementen könnte eine noch stärker gekrümmte und angepasste Gesamt-Federkennlinie erzeugt werden.As a rule, the further spring element will additionally be put into use. In principle, it could also take the place of the former spring element, which could then be shut down in about the same way as provided for the further spring element. The spring characteristic of the further spring element can be selected in each case according to the operation provided so far, that is substantially steeper than the spring characteristic curve and with additional use if necessary equal or even flatter, but usually also steeper when replacing the former spring element.
With even more spring elements an even more curved and adapted overall spring characteristic could be generated.

In weiterer Ausgestaltung kann bzw. können das erstere und/oder das weitere Federelement durch eine Mehrzahl aneinandergesetzter Schraubenfedern von verschiedener Kennlinie gebildet sein.
Auf diesem Wege sind weitere Annäherungen der Kraft des Federelementes an die erforderliche Regelkraft möglich. Denn die Gradlinigkeit der Federkennlinien, die bei den vorgeschlagenen zusammengesetzten Schraubenfedern wiederum eine gradlinige Kennlinie ergibt, so dass insoweit die zusammengesetzte Feder auch durch eine einzige Feder ersetzt werden könnte, ist in der Praxis so nicht vorhanden.In a further embodiment, the former and / or the further spring element can be formed by a plurality of juxtaposed coil springs of different characteristics.
In this way, further approximations of the force of the spring element to the required control force are possible. Because the straightness of the spring characteristics, which in turn results in the proposed composite coil springs a straight line characteristic, so far as the composite spring could also be replaced by a single spring is not available in practice so.

Nach einer Weiterbildung ist jedoch vorgesehen, in dem aus aneinandergesetzten Schraubenfedern bestehenden Federelement den Federweg der Schraubenfeder mit flacherer Kennlinie durch einen Anschlag zu begrenzen, so dass bei weiterer Längung des Federelements nur die Schraubenfeder mit steilerer Kennlinie wirksam ist und theoretisch eine geknickte, praktisch aber eine gebogene Federkennlinie des Gesamt-Federelements herauskommt.In a further development, however, is provided to limit the spring travel of the helical spring with a flatter characteristic curve by a stop in the sprung from one another helical spring, so that with further elongation of the spring element, only the helical spring with steeper characteristic is effective and theoretically a kinked, but practically a curved spring characteristic of the overall spring element comes out.

Weiter im einzelnen wird vorgeschlagen, die Schraubenfedern mittels eines Kupplungsstücks zusammenzusetzen, das ein den Federwindungen angepasstes Außengewinde aufweist, so dass die beiden Federenden daraufgeschraubt werden können.
Der genannte Anschlag kann und soll dann in der Weise verwirklicht werden, dass die Feder mit flacherer Kennlinie und das Kupplungsstück von einem Zuganker durchsetzt sind, an dessen Ende ein Kopf angeordnet ist, an dem das auf dem Zuganker verschiebbare Kupplungsstück anstößt.In detail, it is proposed to assemble the coil springs by means of a coupling piece which has an external thread adapted to the spring coils, so that the two spring ends can be screwed thereon.
Said stop can and should then be realized in such a way that the spring with flatter characteristic and the coupling piece are penetrated by a tie rod, at the end of a head is arranged, on which abuts the displaceable on the tie rod coupling.

Zur weiteren Verfeinerung der Anpassung der Federkräfte an die erforderlichen Regelkräfte soll die Halterung des Federelements an der Stange ein Gelenkteil umfassen, so dass eine saubere, nicht von Biegekräften überlagerte, Federausziehung zustande kommt.To further refine the adjustment of the spring forces to the required control forces, the holder of the spring element on the rod should include a joint part, so that a clean, not superimposed by bending forces, spring removal comes about.

Vorzugsweise besteht das Gelenkteil aus einer gelenkig an der Stange angebrachten Hülse, in die ein Kupplungsstück mit einem den Federwindungen angepassten Außengewinde eingeschraubt ist, auf das das Ende der Schraubenfeder aufgeschraubt ist, oder die ein den Federwindungen angepasstes Innengewinde aufweist, in das das Ende der Schraubenfeder unmittelbar eingeschraubt ist.Preferably, the hinge part consists of a hinged to the rod sleeve into which a coupling piece is screwed with a spring coils adapted external thread on which the end of the coil spring is screwed, or which has a spring coils adapted internal thread into which the end of the coil spring is screwed in immediately.

Besonders vorteilhaft ist die erfindungsgemäße Anordnung bei einem Strömungsmengenregler rechteckigen Querschnitts, dessen Klappe in den an den kürzeren Rechteckseiten liegenden Gehäusewänden gelagert ist. Die beiden Federelemente können hier in, auch größerem, Abstand voneinander von einer an einer der längeren Rechteckseiten liegenden Gehäusewand aus, die von den Stangen der Federelemente durchsetzt wird, an jeweils einem an der Klappe befestigten Hebelarm in der genannten Weise angreifen.Particularly advantageous is the arrangement according to the invention in a flow rate regulator rectangular cross-section, the flap is mounted in the lying on the shorter sides of the rectangle housing walls. The two spring elements can here in, even greater, distance from each other from a lying on one of the longer sides of the rectangle sides housing wall, which is penetrated by the rods of the spring elements, in each case attack on a lever arm attached to the flap in the manner mentioned.

Eine erfinderische Weiterbildung besteht hier darin, dass die an den längeren Rechteckseiten liegenden Gehäusewände durch mehrfache flache Kantung in den Strömungsquerschnitt eingebuchtet sind, wobei vorzugsweise ein mittlerer Abschnitt parallel zur Gehäuseachse verläuft und die Klappe zwischen den parallelen Abschnitten der beiden einander gegenüberliegenden Gehäusewände angeordnet ist.An inventive development consists in the fact that the lying on the longer sides of the rectangular housing walls are indented by multiple flat edging in the flow cross-section, preferably a central portion extends parallel to the housing axis and the flap between the parallel portions of the two opposite housing walls is arranged.

Die Abkantungen geben den Gehäusewänden Steifigkeit und Formgenauigkeit.The bends give the housing walls rigidity and dimensional accuracy.

Damit wird sichergestellt, dass die enge Anpassung der Federelemente an die zur Einregelung bestimmter Strömungsmengen aufzubringenden Kräfte nicht durch ungenaue Anordnung der Federelemente an einer verzogenen Blechwand entwertet wird. Außerdem haben dann die bei weitgehend geschlossener Klappe verbleibenden schmalen Durchgangsspalte noch eine exakte Form und Breite.This ensures that the close adaptation of the spring elements to the applied for Einregelung certain flow rates forces is not invalidated by inaccurate arrangement of the spring elements on a warped sheet metal wall. In addition, then remain at largely closed flap narrow passage gaps still have an exact shape and width.

Die Einbuchtungen sind ferner insofern von Vorteil, als sie die Strömungsgeschwindigkeit an der Stelle der Klappe erhöhen, womit jedenfalls in den Bereichen niedriger Vordrücke die Reaktion der Klappe verbessert wird. Auch wird durch die Erhöhung der Strömungsgeschwindigkeit das Querschnittsprofil der Strömung vergleichmäßigt.The indentations are also advantageous in that they increase the flow velocity at the location of the flap, thus improving the response of the flap, at least in the areas of lower preshrubs. Also, by increasing the flow velocity, the cross-sectional profile of the flow is made uniform.

Nach einer vorteilhaften Ausgestaltung liegt der mittlere Abschnitt jeweils zwischen einem kürzeren, schrägen Abschnitt und einem längeren, weniger schrägen Abschnitt der Gehäusewand, und der kürzere, schrägere Abschnitt der Gehäusewand ist an der Seite des in Öffnungsstellung schräg nach vorne stehenden Klappenschenkels vorne und an der Seite des nach hinten stehenden Klappenschenkels hinten angeordnet.
Damit kann bei möglichst kurzer Bemessung des parallelen Abschnitts und infolgedessen größtmöglicher Tiefe der Einbuchtung jeder Klappenschenkel mit einem zur Strömungsrichtung parallelen Gehäusewandabschnitt zusammenwirken. Die beiden parallelen Abschnitte überschneiden sich. Für beide Seitenwände kann das gleiche Blechteil in, bezogen auf die Strömungsrichtung, umgekehrter Anordnung verwendet werden.
Die Verminderung des Strömungsquerschnitts durch die Einbuchtungen beträgt z.B. 10 bis 15%, vorzugsweise 12 bis 13%.According to an advantageous embodiment, the middle portion is in each case between a shorter, oblique portion and a longer, less inclined portion of the housing wall, and the shorter, more oblique portion of the housing wall is on the side of the opening position obliquely forward flap limb front and on the side the posterior flap leg located behind.
Thus, with the shortest possible dimensioning of the parallel section and, consequently, the greatest possible depth of the indentation, each flap leg can interact with a housing wall section parallel to the flow direction. The two parallel sections overlap. For both side walls, the same sheet metal part can be used in relation to the flow direction, the reverse arrangement.
The reduction of the flow cross section through the indentations is, for example, 10 to 15%, preferably 12 to 13%.

Die Zeichnungen geben ein Ausführungsbeispiel der Erfindung wieder.

  • Fig. 1 zeigt einen Schnitt durch einen Strömungsmengenregler,
  • Fig. 2 zeigt eine Ansicht des Strömungsmengenreglers gemäß Fig. 1 von links,
  • Fig. 3 zeigt eine gleiche Ansicht eines weiteren Strömungsmengenreglers,
  • Fig. 4 zeigt ein Federelement im Längsschnitt,
  • Fig. 5 zeigt ein weiteres Federelement im Längsschnitt und
  • Fig. 6 zeigt ein Einzelteil der Federelemente, teils im Längsschnitt und teils in Ansicht.
The drawings represent an embodiment of the invention.
  • Fig. 1 shows a section through a flow regulator,
  • Fig. 2 shows a view of the flow rate controller according to Fig. 1 from the left,
  • Fig. 3 shows a same view of another flow rate controller,
  • Fig. 4 shows a spring element in longitudinal section,
  • Fig. 5 shows a further spring element in longitudinal section and
  • Fig. 6 shows an individual part of the spring elements, partly in longitudinal section and partly in view.

Der Strömungsmengenregler besteht im wesentlichen aus einer in einem Gehäuse 1 angeordneten Klappe 2, die durch Federkraft in einer den Strömungsquerschnitt mehr oder weniger verschließenden Stellung gehalten ist.The flow rate regulator consists essentially of a housing 2 arranged in a flap 2, which is held by spring force in a flow cross-section more or less occlusive position.

Das Gehäuse 1 setzt sich aus zwei ebenen Gehäusewänden 4 und zwei zweifach flach abgekanteten Gehäusewänden 5 zusammen. Alle Gehäusewände 4 und 5 sind am Eingang und am Ausgang des Strömungsmengenreglers zu einem umlaufenden Flansch 6 abgewinkelt. Mit den beiden Flanschen ist der Strömungsmengenregler in einen Luftkanal desselben rechteckigen Querschnitts einzusetzen.The housing 1 is composed of two flat housing walls 4 and two double flat folded housing walls 5 together. All housing walls 4 and 5 are angled at the input and the output of the flow rate controller to a circumferential flange 6. With the two flanges of the flow rate regulator is inserted into an air duct of the same rectangular cross-section.

Die abgekanteten Gehäusewände gliedern sich jeweils in einen kürzeren schrägen Abschnitt 7, einen zur Achse des Strömungsmengenreglers parallelen Abschnitt 8 und einen längeren schrägen Abschnitt 9. Mit jeweils an einem Abschnitt 7,8 bzw. 9 abgewinkelten Blechabschnitten 10,11 bzw. 12, zwischen denen schmale Spalte 13 verbleiben, liegen die Gehäusewände 5 an den Gehäusewänden 4 an. Nieten 14 halten sie zusammen.The bent housing walls are each divided into a shorter oblique section 7, a parallel to the axis of the flow amount controller section 8 and a longer oblique section 9. With each angled at a section 7,8 or 9 sheet metal sections 10,11 and 12, between which narrow column 13 remain, the housing walls 5 abut the housing walls 4. Rivets 14 hold them together.

Die Klappe 2 ist an den Gehäusewänden 4 gelagert. Sie hat einen winkelförmigen Querschnitt. In dem Winkel liegt ihre Achse 15, die die Gehäusewände 4 durchstößt und in auf der Außenseite der Gehäusewände 4 angebrachten Lagern 16 endet.The flap 2 is mounted on the housing walls 4. It has an angular cross-section. In the angle is its axis 15, which pierces the housing walls 4 and ends in mounted on the outside of the housing walls 4 bearings 16.

Aus dem Winkel der Klappe 2 stehen ferner zwei Hebelarme 17 aus, im ganzen dreieckigen, Blechen von der Klappe ab. Sie sind jeweils eine einen Schlitz in der Klappe durchstoßende Fortsetzung einer auf der Außenseite des Winkels angeordneten, die Form eines Kreisausschnitts aufweisenden Blechscheibe 18, die zwei weitere Schlitze in der Klappe 2 mit hinter der Klappe abgeplatteten Befestigungslaschen 10 durchsetzt. Die Blechscheiben 18 dienen dem Gewichtsausgleich der Klappe 2 in bezug auf die Achse 15.From the angle of the flap 2 are also two lever arms 17, in the whole triangular, sheets from the flap. They are each a slot in the flap piercing continuation of a arranged on the outside of the angle, the shape of a circular section having sheet metal disc 18, the two further slots in the flap 2 with flattened behind the flap fastening tabs 10 passes. The metal plates 18 are used to balance the weight of the flap 2 with respect to the axis 15th

An einem Knopf 20 der Hebelarme 17 ist jeweils eine Zugfeder 21 bzw. 22 eingehängt, die eine Halterung aufweist wie folgt:On a knob 20 of the lever arms 17 is a respective tension spring 21 and 22 mounted, which has a holder as follows:

Auf der einen Gehäusewand 5 sitzt ein mit einem Gewinde versehener Stutzen 23, indem er mit einem kleinen flachen Flansch unter die Gehäusewand greift, sie durchsetzt und durch eine Mutter 24 gehalten ist. Über der Mutter 24 ist eine durchsichtige Kunststoffhülse 25 auf den Stutzen 23 geschraubt. Sie ist oben mit einem Stöpsel 26 verschlossen.On the one housing wall 5 sits a threaded nozzle 23 by engaging with a small flat flange under the housing wall, it is penetrated and held by a nut 24. About the nut 24, a transparent plastic sleeve 25 is screwed onto the socket 23. It is closed at the top with a plug 26.

Der an sich rohrförmige Stutzen 23 ist mit einem, etwas herausstehenden, Einsatz 27 aus Kunststoff versehen, der mit einer dem Durchmesser einer Stange 28 angepassten Bohrung als Sitz und Führung für die Stange 28 dient.
Nahe ihrem Ende ist auf der Stange 28 ein flach-zylindrisches Querteil 29 angeordnet und mittels einer Fixierschraube 30 befestigt. Das Querteil weist ein Gewinde auf, in dem ein mit einem Imbus 31 versehener Gewindestift 32 sitzt. Der Gewindestift 32 stößt bei Zug an der Stange 28 auf den Einsatz 27 und legt damit die Stellung der Stange in bezug auf die Gehäusewand 5, weiter oder weniger weit herausgezogen, fest. Nach Abnehmen des Stöpsels 26 kann durch Drehen des Gewindestiftes 32 mittels eines Imbusschlüssels diese Stellung verändert werden.The per se tubular stub 23 is provided with a, slightly protruding, insert 27 made of plastic, which serves with a diameter of a rod 28 adapted bore as a seat and guide for the rod 28.
Near the end of a flat-cylindrical cross member 29 is disposed on the rod 28 and secured by a fixing screw 30. The cross member has a thread in which a provided with a Allen 31 threaded pin 32 is seated. The grub screw 32 abuts when train on the rod 28 on the insert 27 and thus sets the position of the rod with respect to the housing wall 5, further or less far pulled out firmly. After removing the plug 26 can be changed by turning the threaded pin 32 by means of a Allen key this position.

Am anderen, in den Strömungsquerschnitt ragenden Ende der Stange 28 ist über ein Gelenkteil 33 die Zugfeder 21 bzw. 22 befestigt.At the other, projecting into the flow cross-section end of the rod 28, the tension spring 21 and 22 is attached via a hinge part 33.

Das Gelenkteil 33 hat die Gestalt einer (in Fig. 1 unvollständig dargestellten) Hülse. Die Stange 28 ragt knapp in die eine Hälfte der Hülse hinein und ist durch einen Querstift 34 gelenkig mit ihr verbunden. In der anderen Hälfte ist ein Kupplungsstück 35 in die Hülse eingeschraubt, das etwa zur Hälfte herausragt und mit einem der Zugfeder 21 bzw. 22 angepassten Außengewinde 36 versehen ist, so dass das Ende der Zugfeder 21 bzw. 22 daraufgeschraubt werden konnte. Das Kupplungsstück 35 ist in Fig. 6 in größerem Maßstab allein dargestellt.The hinge part 33 has the shape of a (in Fig. 1 incompletely shown) sleeve. The rod 28 projects just into one half of the sleeve and is connected by a transverse pin 34 hinged to her. In the other half a coupling piece 35 is screwed into the sleeve, which protrudes approximately halfway and is provided with a tension spring 21 and 22 adapted external thread 36, so that the end of the tension spring 21 and 22 could be screwed on it. The coupling piece 35 is in Fig. 6 shown on a larger scale alone.

Die in Fig. 2 rechte Zugfeder 22 hat eine steilere Federkennlinie als die linke Zugfeder 21. Sie bleibt für kleinere einzuregelnde Strömungsmengen inaktiv, indem an ihrer Stange 28 die Fixierschraube 30 nicht festgezogen wird und dadurch die Stange 28 in dem Querteil 29 gleiten kann. Das Querteil 29 wird dafür in die in der Zeichnung untere Stellung gebracht, und die Stange 28 ist gegenüber der anderen Stange 28 etwas nach oben verlängert, damit sie nicht aus dem Querteil herausgezogen wird, wenn die Zugfeder 22 sich beim Verschwenken der Klappe nicht längt und statt dessen die Stange 28 mitnimmt.In the Fig. 2 The right tension spring 22 has a steeper spring characteristic than the left tension spring 21. It remains inactive for smaller flow amounts to be regulated by the fixing screw 30 is not tightened on its rod 28 and thereby the rod 28 can slide in the cross member 29. The cross member 29 is brought into the lower position in the drawing, and the rod 28 is compared to the other rod 28 extends slightly upwards, so that it is not pulled out of the cross member when the tension spring 22 does not lengthen during pivoting of the flap and Instead, the rod 28 entrains.

Die durchsichtigen Kunststoffhülsen 25 sind mit einer, in Fig. 2 herausgezeichneten, Skala versehen, anhand derer die gewünschte einzuregelnde Strömungsmenge durch entsprechende Einstellung des Querteils 29 und damit Vorspannung der Zugfedern 21,22 eingestellt werden kann.
Mit der Zugfeder 21 allein, d.h. bei inaktiver Zugfeder 22, können Strömungsmengen von 50 m3/h bis 100 m3/h eingestellt werden. Zur Einstellung größerer Strömungsmengen wird die Zugfeder 21 in ihre größte vorgesehene Vorspannung gebracht und die Zugfeder 22 aktiviert, indem dort die Kunststoffhülse 25 abgeschraubt und die Fixierschraube 30 angezogen wird, wofür die richtige Stellung des Querteils 29 auf der Stange 28 durch eine die Fixierschraubenspitze aufnehmende Eindellung in der Stange 28 sichergestellt werden kann.
Die Einstellung des Querteils 29 mit Hilfe der auf der durchsichtigen Kunststoffhülse 25 angebrachten Skala wird dann wiederum bei angenommenem Stöpsel 26 durch Verdrehen des Gewindestiftes 32 vorgenommen.
In Fig. 2 ist der Strömungsmengenregler auf 200 m3/h eingestellt.The transparent plastic sleeves 25 are provided with a, in Fig. 2 drawn, provided scale, by means of which the desired einzuregelnde flow rate can be adjusted by appropriate adjustment of the cross member 29 and thus bias of the tension springs 21,22.
With the tension spring 21 alone, ie with inactive tension spring 22, flow rates of 50 m 3 / h can be set to 100 m 3 / h. To set larger flow rates, the tension spring 21 is placed in its largest intended bias and the tension spring 22 is activated by unscrewing the plastic sleeve 25 and the fixing screw 30 is tightened, for which the correct position of the cross member 29 on the rod 28 by a Fixierschraubenspitze receiving indentation can be ensured in the rod 28.
The adjustment of the cross member 29 by means of the attached to the transparent plastic sleeve 25 scale is then made in turn with assumed plug 26 by turning the threaded pin 32.
In Fig. 2 the flow rate controller is set to 200 m 3 / h.

Die Klappe 2 ist infolge ihrer Winkelung und Stabilisierung dieser Winkelung durch die Blechscheiben 18 in hohem Maße verwindungssteif. Die unsymmetrische Krafteinleitung allein durch die Zugfeder 21 oder stärker durch die Zugfeder 22 ist ohne weiteres möglich. Auch kann die Achse 15 entsprechend schwach dimensioniert sein.The flap 2 is due to their angulation and stabilization of this angulation by the metal plates 18 to a large extent torsionally rigid. The asymmetrical introduction of force solely by the tension spring 21 or stronger by the tension spring 22 is readily possible. Also, the axis 15 can be dimensioned correspondingly weak.

An Konsolen 37 der Gehäusewände 4, die nur geringfügig in den Strömungsquerschnitt hineinstehen, sind pneumatische Schwingungsdämpfer 38 bei 39 angelenkt, die andererseits bei 40 mit der Klappe 2 gelenkig verbunden sind.On consoles 37 of the housing walls 4, which protrude only slightly into the flow cross-section, pneumatic vibration dampers 38 are hinged at 39, the other hand at 40 to the flap 2 are hingedly connected.

Im Falle des Einsatzes beider Zugfedern 21 und 22 kommt als weiterer Vorteil dieser Maßnahme eine Schwingungsdämpfung dadurch hinzu, dass die verschiedenen Federn Schwingungssysteme mit verschiedenen Resonanzfrequenzen bilden, die sich gegenseitig stören.In the case of the use of both tension springs 21 and 22 comes as a further advantage of this measure, a vibration damping added by the fact that the various springs form vibration systems with different resonance frequencies, which interfere with each other.

In Fig. 3 sind die Zugfedern 21 und 22 durch zwei gleiche Federelemente 41 ersetzt.In Fig. 3 the tension springs 21 and 22 are replaced by two identical spring elements 41.

Fig. 4 zeigt die betreffende Konstruktion in größerem Maßstab und mit einer einfacheren Halterung: Fig. 4 shows the construction in question on a larger scale and with a simpler mount:

Das Federelement 41 ist aus zwei Zugfedern 42 und 43 von unterschiedlicher Federkennlinie zusammengesetzt. Dazu dient wiederum das bereits beschriebene, in Fig. 6 dargestellte Kupplungsstück, auf das hier die beiden Federenden bis zum Anstoß aneinander (in Fig. 4 und 5 unten) aufgeschraubt sind.
Fig. 3 zeigt die an dem Knopf eingehakten, schwächeren Zugfedern 42 stärker ausgezogen als die beiden anderen, an der Halterung des Federelements 41 befestigten Zugfedern 43.
Das, mit 44 bezeichnete, Federelement nach Fig. 5 ist gegenüber dem Federelement 41 ergänzt um einen Zuganker 45. Der Zuganker 45 besteht aus einer eine Bohrung 46 in dem Kupplungsstück 35 verschieblich durchsetzenden und am anderen Ende der schwächeren Zugfeder 42 festgehaltenen Kopfschraube. Festgehalten ist die Kopfschraube durch Einschrauben in ein im Prinzip gleiches Teil 47 wie das Kupplungsstück 35.
Ist das Federelement 44 ausgezogen bis zum Anschlagen des Schraubenkopfes 48 an dem Kupplungsstück 35, so ist anschließend allein noch die stärkere Zugfeder 43 wirksam und die Federkennlinie steiler. In der Praxis ergibt sich jedoch statt eines Knicks eine im ganzen gekrümmte Federkennlinie.
Es könnte auch die schwächere Zugfeder 42 im Anschluß an das Gelenkteil 33 angeordnet und der Zuganker 45 dort in das Kupplungsstück 35 eingeschraubt sein.The spring element 41 is composed of two tension springs 42 and 43 of different spring characteristic. The already described, in Fig. 6 shown coupling piece, here on the two spring ends to the abutment against each other (in 4 and 5 below) are screwed.
Fig. 3 shows the hooked to the button, weaker springs 42 pulled out more strongly than the other two, attached to the holder of the spring element 41 tension springs 43rd
The designated by 44 spring element after Fig. 5 The tie rod 45 consists of a bore 46 in the coupling piece 35 slidably passing through and held at the other end of the weaker tension spring 42 cap screw. The head screw is held in place by screwing it into a part 47 which is in principle the same as the coupling piece 35.
If the spring element 44 is pulled out until the screw head 48 abuts against the coupling piece 35, the stronger tension spring 43 alone is then effective and the spring characteristic is steeper. In practice, however, instead of a Knicks results in a whole curved spring characteristic.
It could also be the weaker tension spring 42 is arranged in connection to the hinge part 33 and the tie rod 45 there screwed into the coupling piece 35.

Fig. 1 zeigt die Klappe 2 in der Schließstellung, d.h. bei niedrigster eingestellter Strömungsmenge und höchstem Vordruck. In der Öffnungsstellung, d.h. der anderen Endstellung, liegt der nach hinten gerichtete Schenkel 50 der Klappe 2 an den Konsolen 37 an und der andere Schenkel 51 steht schräg nach vorne. Da in jeder Stellung der Klappe 2 der Schenkel 51 stärker angeströmt wird als der Schenkel 50, sucht die Strömung die Klappe 2 gegen die Kraft der Federelemente, d.h. der Zugfedern 21 und 22 in Fig. 2 bzw. der Federelemente 41 in Fig. 3, zu schließen. Fig. 1 shows the flap 2 in the closed position, ie at the lowest set flow rate and highest form. In the open position, ie the other end position, the rearward leg 50 of the flap 2 is located on the consoles 37 and the other leg 51 is obliquely forward. Since in each position of the flap 2 of the legs 51 is more strongly flows than the leg 50, the flow seeks the flap 2 against the force of the spring elements, ie the tension springs 21 and 22 in Fig. 2 or the spring elements 41 in Fig. 3 , close.

Claims (14)

  1. Flow delivery controller for an air conduit of an air-conditioning system, in which, in a housing (1), a flap (2) is mounted on an axis (15) arranged near the cross-sectional mid-axis, which flap is angled near the axis (15), one leg (50) of the said flap being oriented, in the opening position, rearwards in the direction of flow and essentially parallel to the line axis, and the other leg (51) of the said flap being oriented, in the closing position, essentially at right angles to the line axis, and a spring element (21; 41) which is held on a rod (28) which passes through the housing wall (5) acting on a lever arm (17) fastened to the flap (2), in such a way that, during the rotation of the flap (2) out of the opening position to the closing position, the force engagement point describes an arc of a circle which is more oblique to the spring-force direction at the start than at the end, and the rod (28) being provided, in a casing (25) arranged on the outside of the housing wall and having a scale, with a transverse part (28) which has a thread for a headless screw (32) which is supported on a base part (23, 27), fastened to the housing wall (5), of the casing (25) and thus makes it possible to set a desired prestress of the spring element (21; 41), the said prestress corresponding to a specific flow delivery to be adjusted, characterized in that, parallel to the spring element (21; 41) a further spring element (22; 41) is provided, which is held on a rod (28) which passes through the housing wall (5) and which is provided, in a casing (25) arranged on the outside of the housing wall (5) and having a scale, with a transverse part (29) which has a thread for a headless screw (32) which is supported on a base part (23, 27), fastened to the housing wall (5), of the casing (25) and thus makes it possible, in addition to the first spring element (21; 41) or instead of this, to set a desired prestress of the further spring element (22; 41), the said prestress corresponding to a specific higher flow delivery to be adjusted, a free displaceability, to be set up according to choice, moreover being provided in the transverse part (29) and/or by means of the transverse part (29) for the rod (28).
  2. Flow delivery controller according to Claim 1, characterized in that the transverse part (29) belonging to the further spring element (22; 41) is to be retained on the rod (28), on the spot, by means of a fixing screw (30).
  3. Flow delivery controller according to Claim 1, characterized in that a free displacement travel of the transverse part, without support by the headless screw, is provided.
  4. Flow delivery controller according to one of Claims 1 to 3, characterized in that the further spring element (22) has a steeper spring characteristic curve.
  5. Flow delivery controller according to one of Claims 1 to 4, characterized in that the first and/or the further spring element (41) is or are formed by a helical spring (21; 22) or a plurality of helical springs (42; 43) of different characteristic curve which are placed one against the other.
  6. Flow delivery controller according to Claim 5, characterized in that the helical springs (42; 43) are placed together by means of a coupling piece (35) which has an external thread (36) adapted to the turns of the helical springs and onto which the ends of the helical springs (42; 43) are screwed.
  7. Flow delivery controller according to Claim 5 or 6, characterized in that, in the case of the plurality of helical springs (42; 43) of different characteristic curve, the spring excursion of the helical spring (42) having a flatter characteristic curve is limited by a stop (48).
  8. Flow delivery controller according to Claims 6 and 7, characterized in that the helical spring (42) having the flatter characteristic curve and the coupling piece (35) have passing through them a tie (45), at the end of which is arranged a head (48) as the said stop, against which the coupling piece (35) displaceable on the tie (45) butts.
  9. Flow delivery controller according to one of Claims 5 to 8, characterized in that the holding of the spring element (21; 41) on the rod (28) comprises an articulated part (33), preferably a sleeve which is attached to the rod (28) in an articulated manner and into which a coupling piece (35) is screwed by means of an external thread (36) which is adapted to the spring turns and onto which the end of the helical spring (21; 22; 43) is screwed, or which has an internal thread which is adapted to the spring turns and into which the end of the helical spring is screwed directly.
  10. Flow delivery controller according to one of Claims 1 to 9, characterized in that the flow delivery controller has a rectangular cross section, and the flap (2) is mounted (16) in the housing walls (4) lying on the shorter rectangle sides, and the rods (28) pass through a housing wall (5) lying on one of the longer rectangle sides, and the two spring elements (21; 22/41) acting, in the said way at a distance from one another, in each case on a lever arm (17) fastened to the flap (2).
  11. Flow delivery controller according to Claim 10, characterized in that the housing walls (5) lying on the longer rectangle sides are indented into the flow cross section by means of multiple low-angle canting.
  12. Flow delivery controller according to Claim 11, characterized in that in each case a middle portion (8) of the indented housing walls (5) runs parallel to the housing axis, and the flap (2) is arranged between the parallel portions (8) of the two housing walls (5) lying opposite one another.
  13. Flow delivery controller according to Claim 12, characterized in that the middle portion (8) lies in each case between a shorter oblique portion (7) and a longer, less oblique portion (9) of the housing wall (5), and the shorter, move oblique portion (7) of the housing wall (5) is arranged, at the front, on the side of the flap leg (51) standing obliquely forwards in the opening position and, at the rear, on the side of the flap leg (50) standing rearwards.
  14. Flow delivery controller according to one of Claims 11 to 13, characterized in that the reduction in the flow cross section by means of the indentations amounts to 10 to 15%, preferably 12 to 13%.
EP02026210A 2001-12-04 2002-11-26 Flow rate controller Expired - Lifetime EP1318357B1 (en)

Priority Applications (1)

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Applications Claiming Priority (4)

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DE10159635 2001-12-04
DE10159635 2001-12-04
DE10204387 2002-02-04
DE10204387A DE10204387A1 (en) 2001-12-04 2002-02-04 Flow rate regulator

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EP1318357A2 EP1318357A2 (en) 2003-06-11
EP1318357A3 EP1318357A3 (en) 2005-06-08
EP1318357B1 true EP1318357B1 (en) 2009-10-21

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EP (1) EP1318357B1 (en)
AT (1) ATE446486T1 (en)
DE (2) DE10204387A1 (en)
DK (1) DK1318357T3 (en)
ES (1) ES2334107T3 (en)
PT (1) PT1318357E (en)
SI (1) SI1318357T1 (en)

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DE10251929B3 (en) * 2002-11-08 2004-02-19 Emil Siegwart Building air ducting system operating method uses air feed measuring devices each provided by fixed part of air ducting system leading to flow quantity regulator
PT2530396T (en) 2011-06-01 2017-09-13 Koolair Sa Constant flow regulator mechanism
CN108731174B (en) * 2018-08-18 2024-03-19 创客星球（东莞）实业有限公司 Microporous atomizing piece humidifier capable of quickly replacing water guide cotton stick

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK126215B (en) * 1969-04-11 1973-06-18 Nordisk Ventilator Airflow regulator.
DE2823735A1 (en) 1973-07-03 1979-12-06 Emil Siegwart Control of gaseous medium flow through pipe - uses flap bent near supporting shaft and acting against spring bias but never completely closing pipe cross=section
DE2448271C2 (en) 1973-07-03 1985-05-09 Emil 6603 Sulzbach Siegwart Flow regulator for pipes
DE2618037C2 (en) * 1976-04-24 1986-04-30 Emil 6603 Sulzbach Siegwart Regulator for the flow of a gaseous medium in a pipe
DE2758352A1 (en) * 1977-12-27 1979-07-05 Emil Siegwart REGULATOR FOR THE FLOW OF A GAS MEDIUM IN A PIPE
DE2835052A1 (en) 1978-08-10 1980-02-14 Emil Siegwart CONTROLLER FOR THE FLOW OF A GASEOUS MEDIUM IN A PIPE
DE3332529A1 (en) 1983-09-09 1985-03-28 Emil 6603 Sulzbach Siegwart Device for altering the control parameter of a flow system controller of an air-conditioning
FR2770411B1 (en) * 1997-10-30 2000-01-21 Strulik Sa FIREPROOF VALVE FOR AERATION DUCT

Also Published As

Publication number Publication date
EP1318357A2 (en) 2003-06-11
DE10204387A1 (en) 2003-06-12
DE50213940D1 (en) 2009-12-03
ES2334107T3 (en) 2010-03-05
ATE446486T1 (en) 2009-11-15
DK1318357T3 (en) 2010-01-25
SI1318357T1 (en) 2010-01-29
EP1318357A3 (en) 2005-06-08
PT1318357E (en) 2009-11-24

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