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EP2239434B1 - Method for manufacturing a casing for an exhaust gas treatment device and casing and kit - Google Patents

Method for manufacturing a casing for an exhaust gas treatment device and casing and kit Download PDF

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Publication number
EP2239434B1
EP2239434B1 EP10155413A EP10155413A EP2239434B1 EP 2239434 B1 EP2239434 B1 EP 2239434B1 EP 10155413 A EP10155413 A EP 10155413A EP 10155413 A EP10155413 A EP 10155413A EP 2239434 B1 EP2239434 B1 EP 2239434B1
Authority
EP
European Patent Office
Prior art keywords
hood
housing
connection
connection socket
exhaust gas
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.)
Revoked
Application number
EP10155413A
Other languages
German (de)
French (fr)
Other versions
EP2239434A1 (en
Inventor
Thomas Nording
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP2239434A1 publication Critical patent/EP2239434A1/en
Application granted granted Critical
Publication of EP2239434B1 publication Critical patent/EP2239434B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/06—Tubes being formed by assembly of stamped or otherwise deformed sheet-metal
    • 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
    • Y10T29/49398—Muffler, manifold or exhaust pipe making

Definitions

  • the present invention relates to a method for producing a housing for an exhaust gas treatment device for an exhaust system of an internal combustion engine, having the features of the preamble of claim 1.
  • the present invention also relates to a housing for an exhaust gas treatment device for an exhaust system of an internal combustion engine. Further, the present invention also relates to a kit for manufacturing casings of exhaust treatment devices.
  • a used in motor vehicles exhaust gas treatment facility such as a particulate filter, a catalytic converter, a silencer or any combination thereof, a housing, the circumference of a shell and the end each having a bottom. It is also customary to design at least one connection, namely an exhaust gas inlet or an exhaust gas outlet, on at least one of these end-side bottoms.
  • the respective bottom is for example possible to design the respective bottom as a funnel, which is produced integrally with a corresponding connection piece, wherein a longitudinal center axis of the respective connection piece can be inclined relative to the longitudinal central axis of the housing in a corresponding manner.
  • a corresponding number of suitably configured hoppers must be provided. This is associated with a considerable amount of tools and warehousing and logistics.
  • the housing for an exhaust gas treatment device of an exhaust system of an internal combustion engine, in particular of a motor vehicle, known, wherein the housing has a shell and at least one bottom end, wherein at least one such bottom is configured as a spherical or spherical segment-shaped hood, wherein the hood has a connection opening, the is located in an opening plane whose normal is inclined relative to the longitudinal center axis of the housing, wherein a connection piece is attached to the hood in the region of the connection opening.
  • the known housing is a normal to a plane in which a hood facing the connecting end of the connecting piece is inclined relative to the longitudinal center axis of the shell.
  • the hood facing the connection end of the connecting piece is in a plane which is perpendicular to the longitudinal central axis of the connecting piece.
  • connection openings are axially oriented, so that the respective opening plane is parallel to the longitudinal central axis of the housing.
  • a connecting piece with its hood facing the terminal end is located in a plane which is inclined relative to a normal plane perpendicular to the longitudinal center axis of the connecting piece normal plane.
  • the present invention is concerned with the problem for a housing of an exhaust gas treatment device of the type mentioned a way show that allows in particular a simplified production and thus a cheaper production.
  • the present invention is based on the general idea to design at least one of the end bottoms of the housing as a hood, which is spherical or spherical segment-shaped.
  • This particular hemispherical hood can be provided, for example with the help of a corresponding tool in a quasi arbitrary spatial position with a connection opening.
  • a standardized connection piece can then be particularly easily recognized and connected to the hood.
  • a virtually arbitrary spatial orientation of the connecting piece with respect to the longitudinal central axis of the housing can be achieved, which is designed individually for the respective installation situation.
  • the proposed construction thus makes it possible to inexpensively adapt exhaust treatment devices to widely varying installation situations.
  • the connecting end of the connecting piece facing the hood lies in a plane which is inclined with respect to a normal plane extending perpendicular to the longitudinal central axis of the connecting piece, for example by approximately 45 °.
  • the respective connecting piece may be formed at its hood-facing terminal end complementary to the outer contour of the hood.
  • the connecting piece is equipped at its connection end with an annular, spherical segment-shaped collar which is shaped to match the spherical shape or spherical segment shape of the hood. Such a shape simplifies assembly and at the same time allows easy tolerance compensation.
  • a collar can be integrally formed, by means of which the hood can be releasably attached via a clamp connection on the jacket.
  • a kit according to the invention with the aid of which the housing according to the invention for exhaust gas treatment facilities can be produced or with the aid of the inventive method for producing the housing for the exhaust gas treatment facilities can be performed, there is at least one type of jacket, with the help of the respective jacket of the respective housing can be made, at least one hood type without connection opening and matching the respective jacket type and at least one connection piece type suitable for the respective hood. It is clear that for different sized exhaust treatment devices as well different types of shells, hood types and connection types can be provided.
  • Fig. 1 and 2 includes an exhaust treatment device 1, only partially shown, suitable for use in an exhaust system an internal combustion engine is suitable, a housing 2.
  • This housing 2 has with respect to a longitudinal central axis 3 of the housing 2 a circumferentially closed circumferential jacket 4.
  • the jacket 4 surrounds or surrounds at least one exhaust gas treatment element 5, wherein a bearing mat 6 can be arranged between the jacket 4 and the exhaust gas treatment element 5 in the usual way.
  • the housing 2 has at its end, ie axially with respect to its longitudinal central axis 3, two end floors 7, of which in the Fig. 1 and 2 only one is recognizable.
  • the internal combustion engine e.g. a diesel engine or gasoline engine
  • the exhaust gas treatment device 1 can be designed, for example, as a particle filter device. Accordingly, the exhaust gas treatment element 5 is then a particle filter element. Alternatively, the exhaust gas treatment device 1 may also be a catalyst device, so that the exhaust gas treatment element 5 is then a catalyst element. Likewise, combined facilities are conceivable in which z. For example, an oxidation catalyst element is arranged upstream of a particle filter element.
  • At least one of the floors 7, here the bottom 7 shown is designed as a hood 8, which has a spherical shape or spherical segment shape.
  • the hood 8 is shaped as a hemisphere.
  • the hemispherical hood 8 is grown on the jacket 4 in the region of its "equator".
  • the hood 8 includes a connection opening 9, which passes through the hood 8 and in the finished state of the exhaust gas treatment device 1 can serve as an inlet port or as an exhaust port for exhaust gas.
  • the connecting piece 10, 11 is mounted in the region of the respective connection opening 9 to the hood 8, so that said connection piece 10, 11 communicates through the respective connection opening 9 with the interior of the hood 8.
  • the respective connection piece 10, 11 in the finished state of the exhaust gas treatment device 1 forms an inlet connection or an outlet connection for exhaust gas.
  • the respective connecting piece 10, 11 is welded to the hood 8.
  • the respective connecting piece 10, 11 may be provided on a connecting end 12 facing the hood 8 with a collar 14 which protrudes outwards and is closed circumferentially in relation to a longitudinal central axis 13 of the respective connecting piece 10, 11.
  • said collar 14 is complementary to the outer contour of the hood 8 in the region of the respective connection opening 9 enclosing opening edge 15 is formed. This results in a surface contact between collar 14 and opening edge 15, which simplifies the production of a gas-tight connection between the connecting piece 10, 11 and hood 8.
  • the respective connecting piece 10, 11 can be configured in a straight line. Accordingly, it has a straight longitudinal central axis 13.
  • the connecting piece 10 has a frusto-conical section, which easily converges with increasing distance from the hood 8. Further, in this embodiment, the terminal end 12 of the connecting piece 10 is designed so that it lies in a plane 16 which extends perpendicular to the longitudinal central axis 13 of the connecting piece 10.
  • FIG. 2 shows Fig. 2 an embodiment in which the connecting piece 11 is cylindrically shaped and accordingly has a constant cross-section over its entire length. Further, in this embodiment, the terminal end 12 of the connecting piece 11 is located in a plane 17, which includes an angle 19 with a normal plane 18, that is inclined with respect to the normal plane 18. Said normal plane 18 extends perpendicular to the longitudinal central axis 13 of the connecting piece 11 Fig. 2 shown connecting piece 11 is thus tapered connection side. As a result, other angular ranges between the two longitudinal central axes 3, 13 of the respective connecting piece 10, 11 and the housing 2 or the shell 4 can be realized. For example, the chamfered connection piece 11 makes an angle of about 90 ° between the longitudinal central axis 3 of the housing 2 and the longitudinal central axis 13 of the connection piece 11.
  • the Fig. 3a, 3b and 3c show in addition three embodiments of the hood 8.
  • the in Fig. 3a shown hood 8 corresponds to those of Fig. 1 and 2
  • the hood 8 is designed so that it can be releasably secured by means of a clamp, not shown, on the respective jacket 4.
  • the hood 8 is provided on a jacket 4 facing side with respect to the longitudinal center axis 3 of the housing 2 circumferential collar 21.
  • This can optionally be integrally formed on the hood 8.
  • Fig. 3c is on the hood 8 also formed a circumferential annular groove 22 at the transition to the collar 21. In this annular groove 22, the respective clamp can engage to cooperate with the collar 21.
  • the respective hood 8 usually contains only one of the connection openings 9 and not two as in the Fig. 3a to 3c shown. Besides that is the Fig. 3a to 3c removable, that the hood 8 at the jacket 4 facing Side may have a cylindrical portion 23 which simplifies the connection to the cylindrical shell 4.
  • an inventive kit is in Fig. 4 globally denoted by 20.
  • the exhaust treatment device 1 can be produced. It includes according to the Fig. 4a to 4c at least one type of jacket for producing the jacket 4 of the housing 2 and at least one hood type suitable for the respective jacket type for producing the hood 8 which fits the jacket 4.
  • the kit 20 comprises at least one connecting piece type.
  • the connecting piece 11 of Fig. 4a corresponds to the connecting piece 11 of Fig. 2 while the connecting piece 10 of the Fig. 4b the connecting piece 10 of Fig. 1 equivalent.
  • the respective hood 8 is provided without the connection opening 9.
  • the kit 20 may also have different types of shells for producing differently sized coats 4 and matching hood types. Also differently sized connection nozzle types can be present.
  • Fig. 4 the spherical or spherical segment-shaped or hemispherical hood 8 produced or provided in the kit 20.
  • the hood 8 can be used universally for any angle between the longitudinal central axis 3 of the housing 2 and the longitudinal central axis 13 of the still to be mounted connecting piece 10, 11.
  • the hood 8 can be made, for example, from a flat sheet by deep drawing or by pressing.
  • connection opening 9 is made at a suitable location of the hood 8, which in the state Fig. 5 is reproduced.
  • the connection opening 9 can be produced, for example, by means of a suitable cutting tool or by means of a punching tool or by means of a laser welding method.
  • connection piece 10 here the straight-line connection piece 10 accordingly Fig. 6 to be assembled.
  • the respective connecting piece 10 is grown in the region of the connection opening 9 to the hood 8.
  • the connecting piece 10 can be welded or soldered to the hood 8, for example.
  • the in Fig. 6c state shown here corresponds to the illustration according to Fig. 1 ,
  • the hood 8 is already in a state in which it still has no connection opening 9, grown on the jacket 4. It is clear that the hood 8 can also be attached to the casing 4 at a later time, in particular after the connection opening 9 has been produced and / or after the respective connection piece 10, 11 has been attached.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Description

Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen eines Gehäuses für eine Abgasbehandlungseinrichtung für eine Abgasanlage einer Brennkraftmaschine, mit den Merkmalen des Oberbegriffs des Anspruchs 1. Die vorliegende Erfindung betrifft außerdem ein Gehäuse für eine Abgasbehandlungseinrichtung für eine Abgasanlage einer Brennkraftmaschine. Ferner betrifft die vorliegende Erfindung auch einen Bausatz zum Herstellen von Gehäusen von Abgasbehandlungseinrichtungen.The present invention relates to a method for producing a housing for an exhaust gas treatment device for an exhaust system of an internal combustion engine, having the features of the preamble of claim 1. The present invention also relates to a housing for an exhaust gas treatment device for an exhaust system of an internal combustion engine. Further, the present invention also relates to a kit for manufacturing casings of exhaust treatment devices.

Üblicherweise weist eine bei Kraftfahrzeugen zur Anwendung kommende Abgasbehandfungseinrichtung, wie z. Bsp. ein Partikelfilter, ein Katalysator, ein Schalldämpfer oder beliebige Kombinationen daraus, ein Gehäuse auf, das umfangsseitig einen Mantel und endseitig jeweils einen Boden aufweist. Üblich ist es ferner, zumindest einen Anschluss, nämlich einen Abgaseinlass bzw. einen Abgasauslass, an zumindest einem dieser endseitigen Böden auszubilden.Usually has a used in motor vehicles exhaust gas treatment facility such. For example, a particulate filter, a catalytic converter, a silencer or any combination thereof, a housing, the circumference of a shell and the end each having a bottom. It is also customary to design at least one connection, namely an exhaust gas inlet or an exhaust gas outlet, on at least one of these end-side bottoms.

Für unterschiedliche Einbausituationen, die bei verschiedenen Fahrzeugtypen bzw. Anwendungsformen stark variieren können, ist es erforderlich, die jeweilige Abgasbehandlungseinrichtung mit unterschiedlichen Raumlagen montieren zu können. Beispielsweise müssen hierzu unterschiedliche Winkel zwischen einer Längsmittelachse des Gehäuses und zuführenden bzw. abführenden Gasleitungen realisiert werden.For different installation situations, which can vary greatly with different vehicle types or applications, it is necessary to be able to mount the respective exhaust gas treatment device with different spatial positions. For example, different angles between a longitudinal central axis of the housing and supplying or discharging gas lines must be realized for this purpose.

Hierzu ist es bspw. möglich, den jeweiligen Boden als Trichter auszugestalten, der integral mit einem entsprechenden Anschlussstutzen hergestellt ist, wobei eine Längsmittelachse des jeweiligen Anschlussstutzens in entsprechender Weise gegenüber der Längsmittelachse des Gehäuses geneigt sein kann. Um nun eine Vielzahl unterschiedlicher Zuführwinkel bzw. Abführwinkel realisieren zu können, muss eine entsprechende Anzahl an passend konfigurierten Trichtern bereitgestellt werden. Dies ist mit einem erheblichen Aufwand an Werkzeugen und Lagerhaltung sowie Logistik verbunden.For this purpose, it is for example possible to design the respective bottom as a funnel, which is produced integrally with a corresponding connection piece, wherein a longitudinal center axis of the respective connection piece can be inclined relative to the longitudinal central axis of the housing in a corresponding manner. Around Now, to be able to realize a multiplicity of different feed angles or discharge angles, a corresponding number of suitably configured hoppers must be provided. This is associated with a considerable amount of tools and warehousing and logistics.

Aus der EP 1 990 514 A1 ist ein Gehäuse für eine Abgasbehandlungseinrichtung einer Abgasanlage einer Brennkraftmaschine, insbesondere eines Kraftfahrzeugs, bekannt, wobei das Gehäuse einen Mantel und endseitig zumindest einen Boden aufweist, wobei zumindest ein solcher Boden als kugelförmige oder kugelsegmentförmige Haube ausgestaltet ist, wobei die Haube eine Anschlussöffnung aufweist, die in einer Öffnungsebene liegt, deren Normale gegenüber der Längsmittelachse des Gehäuses geneigt ist, wobei an die Haube im Bereich der Anschlussöffnung ein Anschlussstutzen angebaut ist. Beim bekannten Gehäuse ist eine Normale zu einer Ebene, in der ein der Haube zugewandtes Anschlussende des Anschlussstutzens liegt, gegenüber der Längsmittelachse des Mantels geneigt. Dabei liegt das der Haube zugewandte Anschlussende des Anschlussstutzens in einer Ebene, die senkrecht zur Längsmittelachse des Anschlussstutzens verläuft.From the EP 1 990 514 A1 is a housing for an exhaust gas treatment device of an exhaust system of an internal combustion engine, in particular of a motor vehicle, known, wherein the housing has a shell and at least one bottom end, wherein at least one such bottom is configured as a spherical or spherical segment-shaped hood, wherein the hood has a connection opening, the is located in an opening plane whose normal is inclined relative to the longitudinal center axis of the housing, wherein a connection piece is attached to the hood in the region of the connection opening. In the known housing is a normal to a plane in which a hood facing the connecting end of the connecting piece is inclined relative to the longitudinal center axis of the shell. In this case, the hood facing the connection end of the connecting piece is in a plane which is perpendicular to the longitudinal central axis of the connecting piece.

Aus der US 4,969,264 ist ein weiteres Gehäuse für eine Abgasbehandlungseinrichtung bekannt, dessen Anschlussöffnungen axial orientiert sind, so dass die jeweilige Öffnungsebene parallel zur Längsmittelachse des Gehäuses verläuft. Dabei ist ein Anschlussstutzen mit seinem der Haube zugewandten Anschlussende in einer Ebene liegt, die gegenüber einer senkrecht auf der Längsmittelachse des Anschlussstutzens stehenden Normalebene geneigt ist.From the US 4,969,264 a further housing for an exhaust gas treatment device is known, the connection openings are axially oriented, so that the respective opening plane is parallel to the longitudinal central axis of the housing. In this case, a connecting piece with its hood facing the terminal end is located in a plane which is inclined relative to a normal plane perpendicular to the longitudinal center axis of the connecting piece normal plane.

Die vorliegende Erfindung beschäftigt sich mit dem Problem, für ein Gehäuse einer Abgasbehandlungseinrichtung der eingangs genannten Art einen Weg aufzuzeigen, der insbesondere eine vereinfachte Herstellung und somit eine preiswertere Fertigung ermöglicht.The present invention is concerned with the problem for a housing of an exhaust gas treatment device of the type mentioned a way show that allows in particular a simplified production and thus a cheaper production.

Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.

Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, zumindest einen der endseitigen Böden des Gehäuses als Haube auszugestalten, die kugelförmig bzw. kugelsegmentförmig ausgebildet ist. Diese insbesondere halbkugelförmige Haube kann z.B. mit Hilfe eines entsprechenden Werkzeugs in einer quasi beliebigen Raumlage mit einer Anschlussöffnung versehen werden. An diese Anschlussöffnung kann dann besonders einfach ein standardisierter Anschlussstutzen angesetzt und mit der Haube verbunden werden. Auf diese Weise kann mit Hilfe von lediglich zwei Standard-Bauteilen, nämlich der Haube und des Anschlussstutzens, eine quasi beliebige räumliche Ausrichtung des Anschlussstutzens bezüglich der Längsmittelachse des Gehäuses erzielt werden, die individuell für die jeweilige Einbausituation konzipiert ist. Die vorgeschlagene Bauweise ermöglicht es somit, Abgasbehandlungseinrichtungen preiswert an stark variierende Einbausituationen adaptieren zu können. Erfindungsgemäß ist dabei vorgesehen, dass das der Haube zugewandte Anschlussende des Anschlussstutzens in einer Ebene liegt, die gegenüber einer senkrecht zur Längsmittelachse des Anschlussstutzens verlaufenden Normalebene geneigt verläuft, bspw. um etwa 45°. Durch derartige schräge bzw. abgeschrägte Anschlussstutzen ist es insbesondere möglich, einen Winkel von 90° zwischen der Längsmittelachse des Anschlussstutzens und der Längsmittelachse des Gehäuses zu realisieren.The present invention is based on the general idea to design at least one of the end bottoms of the housing as a hood, which is spherical or spherical segment-shaped. This particular hemispherical hood can be provided, for example with the help of a corresponding tool in a quasi arbitrary spatial position with a connection opening. At this connection opening a standardized connection piece can then be particularly easily recognized and connected to the hood. In this way, with the help of only two standard components, namely the hood and the connecting piece, a virtually arbitrary spatial orientation of the connecting piece with respect to the longitudinal central axis of the housing can be achieved, which is designed individually for the respective installation situation. The proposed construction thus makes it possible to inexpensively adapt exhaust treatment devices to widely varying installation situations. According to the invention, it is provided that the connecting end of the connecting piece facing the hood lies in a plane which is inclined with respect to a normal plane extending perpendicular to the longitudinal central axis of the connecting piece, for example by approximately 45 °. By such oblique or beveled connecting piece, it is particularly possible to realize an angle of 90 ° between the longitudinal center axis of the connecting piece and the longitudinal central axis of the housing.

Zweckmäßig kann der jeweilige Anschlussstutzen an seinem der Haube zugewandten Anschlussende komplementär zur Außenkontur der Haube geformt sein. Hierdurch kann eine flächige Anlage zwischen Anschlussstutzen und Haube realisiert werden. Beispielsweise ist der Anschlussstutzen an seinem Anschlussende mit einem ringförmig umlaufenden, kugelsegmentförmigen Kragen ausgestattet, der passend zur Kugelform bzw. Kugelsegmentform der Haube geformt ist. Eine derartige Formgebung vereinfacht die Montage und ermöglicht gleichzeitig einen einfachen Toleranzausgleich.Suitably, the respective connecting piece may be formed at its hood-facing terminal end complementary to the outer contour of the hood. As a result, a flat contact between the connecting piece and hood can be realized. For example, the connecting piece is equipped at its connection end with an annular, spherical segment-shaped collar which is shaped to match the spherical shape or spherical segment shape of the hood. Such a shape simplifies assembly and at the same time allows easy tolerance compensation.

An der Haube kann integral ein Kragen angeformt sein, mit dessen Hilfe die Haube über eine Schellenverbindung lösbar am Mantel befestigt werden kann.On the hood, a collar can be integrally formed, by means of which the hood can be releasably attached via a clamp connection on the jacket.

In einem erfindungsgemäßen Bausatz, mit dessen Hilfe die erfindungsgemäßen Gehäuse für Abgasbehandlungseinrichtungen hergestellt werden können bzw. mit dessen Hilfe das erfindungsgemäße Verfahren zum Herstellen der Gehäuse für die Abgasbehandlungseinrichtungen durchgeführt werden kann, finden sich zumindest ein Manteltyp, mit dessen Hilfe der jeweilige Mantel des jeweiligen Gehäuses hergestellt werden kann, zumindest ein Haubentyp ohne Anschlussöffnung und passend zum jeweiligen Manteltyp sowie zumindest ein Anschlussstutzentyp passend zur jeweiligen Haube. Es ist klar, dass für unterschiedlich groß dimensionierte Abgasbehandlungseinrichtungen auch unterschiedlich große Manteltypen, Haubentypen und Anschlusstypen vorgesehen sein können.In a kit according to the invention, with the aid of which the housing according to the invention for exhaust gas treatment facilities can be produced or with the aid of the inventive method for producing the housing for the exhaust gas treatment facilities can be performed, there is at least one type of jacket, with the help of the respective jacket of the respective housing can be made, at least one hood type without connection opening and matching the respective jacket type and at least one connection piece type suitable for the respective hood. It is clear that for different sized exhaust treatment devices as well different types of shells, hood types and connection types can be provided.

Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.

Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Es zeigen, jeweils schematisch,

  • Fig. 1 einen stark vereinfachten Längsschnitt durch eine Abgasbehandlungsvorrichtung im Bereich eines Bodens, bei einer gattungsgemäßen Ausführungsform,
  • Fig. 2 einen Längsschnitt wie in Fig. 1, jedoch bei einer erfindungsgemäßen Ausführungsform,
  • Fig. 3 Längsschnitte durch eine Haube bei verschiedenen Varianten a, b, c,
  • Fig. 4 bis 6 Ansichten wie in den Fig 1 und 2, und zwar mit einem erfindungsgemäßen Anschlussstutzen a, mit einem gattungsgemäßen Anschlussstutzen b und mit einer Haube c, jedoch bei unterschiedlichen Stadien eines Herstellungsverfahrens.
Show, in each case schematically,
  • Fig. 1 a greatly simplified longitudinal section through an exhaust treatment device in the region of a floor, in a generic embodiment,
  • Fig. 2 a longitudinal section as in Fig. 1 but in an embodiment according to the invention,
  • Fig. 3 Longitudinal sections through a hood in different variants a, b, c,
  • 4 to 6 Views like in the FIGS. 1 and 2 , namely with a connecting piece according to the invention a, with a generic connecting piece b and with a hood c, but at different stages of a manufacturing process.

Entsprechend den Fig. 1 und 2 umfasst eine nur teilweise dargestellte Abgasbehandlungseinrichtung 1, die für eine Verwendung in einer Abgasanlage einer Brennkraftmaschine geeignet ist, ein Gehäuse 2. Dieses Gehäuse 2 weist bezüglich einer Längsmittelachse 3 des Gehäuses 2 einen umfangsseitig geschlossen umlaufenden Mantel 4 auf. Der Mantel 4 umschließt bzw. umhüllt dabei zumindest ein Abgasbehandlungselement 5, wobei zwischen Mantel 4 und Abgasbehandlungselement 5 in üblicher Weise eine Lagermatte 6 angeordnet sein kann. Ferner besitzt das Gehäuse 2 endseitig, also bezüglich seiner Längsmittelachse 3 axial zwei Endböden 7, von denen in den Fig. 1 und 2 jeweils nur einer erkennbar ist.According to the Fig. 1 and 2 includes an exhaust treatment device 1, only partially shown, suitable for use in an exhaust system an internal combustion engine is suitable, a housing 2. This housing 2 has with respect to a longitudinal central axis 3 of the housing 2 a circumferentially closed circumferential jacket 4. The jacket 4 surrounds or surrounds at least one exhaust gas treatment element 5, wherein a bearing mat 6 can be arranged between the jacket 4 and the exhaust gas treatment element 5 in the usual way. Furthermore, the housing 2 has at its end, ie axially with respect to its longitudinal central axis 3, two end floors 7, of which in the Fig. 1 and 2 only one is recognizable.

Die Brennkraftmaschine, z.B. ein Dieselmotor oder Ottomotor, kann in Fahrzeugen, in Straßenfahrzeugen, in Baufahrzeugen, in sogenannten non-road-Fahrzeugen sowie in Wasserfahrzeugen, also in Schiffen ebenso zur Anwendung kommen wie in stationären Einrichtungen, wie z. B. Blockheizkraftwerke oder Baumaschinen oder Stromgeneratoren.The internal combustion engine, e.g. a diesel engine or gasoline engine, can be used in vehicles, in road vehicles, in construction vehicles, in so-called non-road vehicles and in watercraft, so in ships as well as in stationary facilities, such. B. combined heat and power or construction or power generators.

Die Abgasbehandlungseinrichtung 1 kann bspw. als Partikelfiltereinrichtung konzipiert sein. Dementsprechend handelt es sich dann beim Abgasbehandlungselement 5 um ein Partikelfilterelement. Alternativ kann es sich bei der Abgasbehandlungseinrichtung 1 auch um eine Katalysatoreinrichtung handeln, so dass das Abgasbehandlungselement 5 dann ein Katalysatorelement ist. Ebenso sind kombinierte Einrichtungen denkbar, bei denen z. Bsp. ein Oxydationskatalysatorelement stromauf eines Partikelfilterelements angeordnet ist.The exhaust gas treatment device 1 can be designed, for example, as a particle filter device. Accordingly, the exhaust gas treatment element 5 is then a particle filter element. Alternatively, the exhaust gas treatment device 1 may also be a catalyst device, so that the exhaust gas treatment element 5 is then a catalyst element. Likewise, combined facilities are conceivable in which z. For example, an oxidation catalyst element is arranged upstream of a particle filter element.

Zumindest einer der Böden 7, hier der gezeigte Boden 7 ist als Haube 8 ausgestaltet, die eine Kugelform bzw. Kugelsegmentform aufweist. In den gezeigten Beispielen ist die Haube 8 als Halbkugel geformt. Die halbkugelförmige Haube 8 ist im Bereich ihres "Äquators" an den Mantel 4 angebaut. Ferner enthält die Haube 8 eine Anschlussöffnung 9, welche die Haube 8 durchsetzt und die im fertigen Zustand der Abgasbehandlungseinrichtung 1 als Einlassöffnung oder als Auslassöffnung für Abgas dienen kann. Außerdem ist an die Haube 8 ein Anschlussstutzen 10 (Fig. 1) bzw. 11 (Fig. 2) angebaut. Der Anschlussstutzen 10, 11 ist dabei im Bereich der jeweiligen Anschlussöffnung 9 an die Haube 8 angebaut, so dass besagter Anschlussstutzen 10, 11 durch die jeweilige Anschlussöffnung 9 mit dem Inneren der Haube 8 kommuniziert. In der Folge bildet der jeweilige Anschlussstutzen 10, 11 im fertigen Zustand der Abgasbehandlungseinrichtung 1 einen Einlassstutzen bzw. einen Auslassstutzen für Abgas. Bevorzugt ist der jeweilige Anschlussstutzen 10, 11 an die Haube 8 angeschweißt. Hierzu kann der jeweilige Anschlussstutzen 10, 11 an einem der Haube 8 zugewandten Anschlussende 12 mit einem nach außen abstehenden und bezüglich einer Längsmittelachse 13 des jeweiligen Anschlussstutzens 10, 11 in Umfangsrichtung geschlossen umlaufenden Kragen 14 ausgestattet sein. Zweckmäßig ist besagter Kragen 14 komplementär zur Außenkontur der Haube 8 im Bereich eines die jeweilige Anschlussöffnung 9 einfassenden Öffnungsrands 15 geformt. Hierdurch ergibt sich eine flächige Kontaktierung zwischen Kragen 14 und Öffnungsrand 15, was die Herstellung einer gasdichten Verbindung zwischen Anschlussstutzen 10, 11 und Haube 8 vereinfacht.At least one of the floors 7, here the bottom 7 shown is designed as a hood 8, which has a spherical shape or spherical segment shape. In the examples shown, the hood 8 is shaped as a hemisphere. The hemispherical hood 8 is grown on the jacket 4 in the region of its "equator". Furthermore, the hood 8 includes a connection opening 9, which passes through the hood 8 and in the finished state of the exhaust gas treatment device 1 can serve as an inlet port or as an exhaust port for exhaust gas. In addition, to the hood 8, a connection piece 10 ( Fig. 1 ) or 11 ( Fig. 2 ) grown. The connecting piece 10, 11 is mounted in the region of the respective connection opening 9 to the hood 8, so that said connection piece 10, 11 communicates through the respective connection opening 9 with the interior of the hood 8. As a result, the respective connection piece 10, 11 in the finished state of the exhaust gas treatment device 1 forms an inlet connection or an outlet connection for exhaust gas. Preferably, the respective connecting piece 10, 11 is welded to the hood 8. For this purpose, the respective connecting piece 10, 11 may be provided on a connecting end 12 facing the hood 8 with a collar 14 which protrudes outwards and is closed circumferentially in relation to a longitudinal central axis 13 of the respective connecting piece 10, 11. Appropriately, said collar 14 is complementary to the outer contour of the hood 8 in the region of the respective connection opening 9 enclosing opening edge 15 is formed. This results in a surface contact between collar 14 and opening edge 15, which simplifies the production of a gas-tight connection between the connecting piece 10, 11 and hood 8.

Der jeweilige Anschlussstutzen 10, 11 kann geradlinig konfiguriert sein. Dementsprechend besitzt er eine geradlinige Längsmittelachse 13.The respective connecting piece 10, 11 can be configured in a straight line. Accordingly, it has a straight longitudinal central axis 13.

Bei der in Fig. 1 gezeigten Ausführungsform besitzt der Anschlussstutzen 10 einen kegelstumpfförmigen Abschnitt, der mit zunehmenden Abstand von der Haube 8 leicht konvergiert. Ferner ist bei dieser Ausführungsform das Anschlussende 12 des Anschlussstutzens 10 so konzipiert, dass es in einer Ebene 16 liegt, die sich senkrecht zur Längsmittelachse 13 des Anschlussstutzens 10 erstreckt.At the in Fig. 1 In the embodiment shown, the connecting piece 10 has a frusto-conical section, which easily converges with increasing distance from the hood 8. Further, in this embodiment, the terminal end 12 of the connecting piece 10 is designed so that it lies in a plane 16 which extends perpendicular to the longitudinal central axis 13 of the connecting piece 10.

Im Unterschied dazu zeigt Fig. 2 eine Ausführungsform, bei welcher der Anschlussstutzen 11 zylindrisch geformt ist und dementsprechend über seine gesamte Länge einen konstanten Querschnitt aufweist. Ferner liegt bei dieser Ausführungsform das Anschlussende 12 des Anschlussstutzens 11 in einer Ebene 17, die mit einer Normalebene 18 einen Winkel 19 einschließt, also gegenüber der Normalebene 18 geneigt ist. Besagte Normalebene 18 erstreckt sich senkrecht zur Längsmittelachse 13 des Anschlussstutzens 11. Der in Fig. 2 gezeigte Anschlussstutzen 11 ist somit anschlussseitig abgeschrägt. Hierdurch können andere Winkelbereiche zwischen den beiden Längsmittelachsen 3, 13 des jeweiligen Anschlussstutzens 10, 11 und des Gehäuses 2 bzw. des Mantels 4 realisiert werden. Beispielsweise ermöglicht der abgeschrägte Anschlussstutzen 11 einen Winkel von etwa 90° zwischen der Längsmittelachse 3 des Gehäuses 2 und der Längsmittelachse 13 des Anschlussstutzens 11.In contrast, shows Fig. 2 an embodiment in which the connecting piece 11 is cylindrically shaped and accordingly has a constant cross-section over its entire length. Further, in this embodiment, the terminal end 12 of the connecting piece 11 is located in a plane 17, which includes an angle 19 with a normal plane 18, that is inclined with respect to the normal plane 18. Said normal plane 18 extends perpendicular to the longitudinal central axis 13 of the connecting piece 11 Fig. 2 shown connecting piece 11 is thus tapered connection side. As a result, other angular ranges between the two longitudinal central axes 3, 13 of the respective connecting piece 10, 11 and the housing 2 or the shell 4 can be realized. For example, the chamfered connection piece 11 makes an angle of about 90 ° between the longitudinal central axis 3 of the housing 2 and the longitudinal central axis 13 of the connection piece 11.

Die Fig. 3a, 3b und 3c zeigen ergänzend drei Ausführungsformen der Haube 8. Die in Fig. 3a gezeigte Haube 8 entspricht denjenigen der Fig. 1 und 2. In den Fig. 3b bis 3c ist die Haube 8 so gestaltet, dass sie mit Hilfe einer nicht gezeigten Schelle am jeweiligen Mantel 4 lösbar befestigt werden kann. Hierzu ist die Haube 8 an einer dem Mantel 4 zugewandten Seite mit einem bezüglich der Längsmittelachse 3 des Gehäuses 2 umlaufenden Kragen 21 versehen. Dieser kann optional integral an der Haube 8 ausgeformt sein. Im Beispiel der Fig. 3c ist an der Haube 8 außerdem eine umlaufende Ringnut 22 am Übergang zum Kragen 21 ausgeformt. In diese Ringnut 22 kann die jeweilige Schelle eingreifen, um mit dem Kragen 21 zusammenzuwirken. Es ist klar, dass auch andere Konfigurationen, insbesondere mit angebautem Kragen, denkbar sind. Ferner ist klar, dass die jeweilige Haube 8 üblicherweise nur eine der Anschlussöffnungen 9 enthält und nicht zwei wie in den Fig. 3a bis 3c dargestellt. Außerdem ist den Fig. 3a bis 3c entnehmbar, dass die Haube 8 an der dem Mantel 4 zugewandten Seite einen zylindrischen Abschnitt 23 aufweisen kann, der den Anschluss an den zylindrischen Mantel 4 vereinfacht.The Fig. 3a, 3b and 3c show in addition three embodiments of the hood 8. The in Fig. 3a shown hood 8 corresponds to those of Fig. 1 and 2 , In the Fig. 3b to 3c the hood 8 is designed so that it can be releasably secured by means of a clamp, not shown, on the respective jacket 4. For this purpose, the hood 8 is provided on a jacket 4 facing side with respect to the longitudinal center axis 3 of the housing 2 circumferential collar 21. This can optionally be integrally formed on the hood 8. In the example of Fig. 3c is on the hood 8 also formed a circumferential annular groove 22 at the transition to the collar 21. In this annular groove 22, the respective clamp can engage to cooperate with the collar 21. It is clear that other configurations, especially with attached collar, are conceivable. Furthermore, it is clear that the respective hood 8 usually contains only one of the connection openings 9 and not two as in the Fig. 3a to 3c shown. Besides that is the Fig. 3a to 3c removable, that the hood 8 at the jacket 4 facing Side may have a cylindrical portion 23 which simplifies the connection to the cylindrical shell 4.

Ein erfindungsgemäßer Bausatz ist in Fig. 4 global mit 20 bezeichnet. Mit Hilfe dieses Bausatzes 20 kann die Abgasbehandlungseinrichtung 1 hergestellt werden. Er umfasst entsprechend den Fig. 4a bis 4c zumindest einen Manteltyp zum Herstellen des Mantels 4 des Gehäuses 2 sowie zumindest einen zum jeweiligen Manteltyp passenden Haubentyp zum Herstellen der zum Mantel 4 passenden Haube 8. Ferner umfasst der Bausatz 20 zumindest einen Anschlussstutzentyp. In der Gesamtdarstellung der Fig. 4 sind rein exemplarisch die beiden unterschiedlichen Anschlussstutzen 10, 11 der Fig. 1 und 2 dargestellt. Der Anschlussstutzen 11 der Fig. 4a entspricht dem Anschlussstutzen 11 der Fig. 2, während der Anschlussstutzen 10 der Fig. 4b dem Anschlussstutzen 10 der Fig. 1 entspricht. Innerhalb des Bausatzes 20 ist die jeweilige Haube 8 ohne die Anschlussöffnung 9 bereitgestellt. Es ist klar, dass der Bausatz 20 auch verschiedene Manteltypen zum Herstellen unterschiedlich dimensionierter Mäntel 4 sowie dazu passende Haubentypen aufweisen kann. Auch können unterschiedlich dimensionierte Anschlussstutzentypen vorhanden sein.An inventive kit is in Fig. 4 globally denoted by 20. With the help of this kit 20, the exhaust treatment device 1 can be produced. It includes according to the Fig. 4a to 4c at least one type of jacket for producing the jacket 4 of the housing 2 and at least one hood type suitable for the respective jacket type for producing the hood 8 which fits the jacket 4. Furthermore, the kit 20 comprises at least one connecting piece type. In the overall presentation of the Fig. 4 are purely exemplary, the two different connection pieces 10, 11 of the Fig. 1 and 2 shown. The connecting piece 11 of Fig. 4a corresponds to the connecting piece 11 of Fig. 2 while the connecting piece 10 of the Fig. 4b the connecting piece 10 of Fig. 1 equivalent. Within the kit 20, the respective hood 8 is provided without the connection opening 9. It is clear that the kit 20 may also have different types of shells for producing differently sized coats 4 and matching hood types. Also differently sized connection nozzle types can be present.

Ein Verfahren zum Herstellen der Abgasbehandlungseinrichtung 1 wird im Folgenden anhand der Fig. 4 bis 6 näher erläutert.A method for producing the exhaust gas treatment device 1 will be described below with reference to FIGS 4 to 6 explained in more detail.

Zunächst wird entsprechend Fig. 4 die kugelförmige oder kugelsegmentförmige bzw. halbkugelförmige Haube 8 hergestellt bzw. im Bausatz 20 bereitgestellt. Die Haube 8 ist universell für beliebige Winkel zwischen der Längsmittelachse 3 des Gehäuses 2 und der Längsmittelachse 13 des noch zu montierenden Anschlussstutzens 10, 11 einsetzbar. Die Haube 8 kann bspw. aus einem ebenen Blech durch Tiefziehen oder durch Drücken hergestellt werden.First, it will be appropriate Fig. 4 the spherical or spherical segment-shaped or hemispherical hood 8 produced or provided in the kit 20. The hood 8 can be used universally for any angle between the longitudinal central axis 3 of the housing 2 and the longitudinal central axis 13 of the still to be mounted connecting piece 10, 11. The hood 8 can be made, for example, from a flat sheet by deep drawing or by pressing.

Sobald der einzuhaltende Winkel zwischen der Längsmittelachse 3 des Gehäuses 2 und der Längsmittelachse 13 des jeweiligen Anschlussstutzens 10, 11 feststeht, wird an einer dafür geeigneten Stelle der Haube 8 die Anschlussöffnung 9 hergestellt, was im Zustand der Fig. 5 wiedergegeben ist. Die Anschlussöffnung 9 kann bspw. mittels eines geeigneten Schneidwerkzeugs oder mittels eines Stanzwerkzeugs oder mittels eines Laserschweißverfahrens hergestellt werden. Durch die Positionierung der Anschlussöffnung 9 liegt die Längsmittelachse 13 des späteren Anschlussstutzens 10, 11 bereits mehr oder weniger fest, zumindest wenn es sich um den geradlinigen Anschlussstutzen 10 gemäß Fig. 5b handelt.Once the angle to be observed between the longitudinal central axis 3 of the housing 2 and the longitudinal central axis 13 of the respective connecting piece 10, 11 is fixed, the connection opening 9 is made at a suitable location of the hood 8, which in the state Fig. 5 is reproduced. The connection opening 9 can be produced, for example, by means of a suitable cutting tool or by means of a punching tool or by means of a laser welding method. By positioning the connection opening 9, the longitudinal central axis 13 of the later connection piece 10, 11 is already more or less firm, at least when it comes to the rectilinear connection piece 10 according to Fig. 5b is.

Anschließend kann der passende Anschlussstutzen, hier der geradlinige Anschlussstutzen 10 entsprechend Fig. 6 montiert werden. Hierzu wird der jeweilige Anschlussstutzen 10 im Bereich der Anschlussöffnung 9 an die Haube 8 angebaut. Wie erwähnt, lässt sich der Anschlussstutzen 10 bspw. an die Haube 8 anschweißen oder anlöten. Der in Fig. 6c gezeigte Zustand entspricht hier der Darstellung gemäß Fig. 1.Subsequently, the matching connection piece, here the straight-line connection piece 10 accordingly Fig. 6 to be assembled. For this purpose, the respective connecting piece 10 is grown in the region of the connection opening 9 to the hood 8. As mentioned, the connecting piece 10 can be welded or soldered to the hood 8, for example. The in Fig. 6c state shown here corresponds to the illustration according to Fig. 1 ,

Im gezeigten Beispiel ist die Haube 8 bereits in einem Zustand, in dem sie noch keine Anschlussöffnung 9 aufweist, an den Mantel 4 angebaut. Es ist klar, dass die Haube 8 auch zu einem späteren Zeitpunkt, insbesondere nach dem Herstellen der Anschlussöffnung 9 und/oder nach dem Anbauen des jeweiligen Anschlussstutzens 10, 11, an den Mantel 4 angebaut werden kann.In the example shown, the hood 8 is already in a state in which it still has no connection opening 9, grown on the jacket 4. It is clear that the hood 8 can also be attached to the casing 4 at a later time, in particular after the connection opening 9 has been produced and / or after the respective connection piece 10, 11 has been attached.

Beim Verbinden von Haube 8 und Mantel 4 können die üblichen Herstellungsmethoden berücksichtigt werden, insbesondere auch ein Downsizing oder Zusammendrücken des Mantels 4 im Rahmen des Canning-Prozesses, bei dem der jeweilige Abgasbehandlungseinsatz 5 in den Mantel 4 eingesetzt wird und bei dem der jeweilige Mantel 4 an die Abmessungen des jeweiligen Abgasbehandlungseinsatzes 5 angepasst wird.When connecting hood 8 and jacket 4, the usual production methods can be taken into account, in particular also a downsizing or compression of the jacket 4 in the context of the canning process, in which the respective exhaust gas treatment insert 5 is inserted into the jacket 4 and in which the respective jacket 4 is adapted to the dimensions of the respective exhaust treatment insert 5.

Es ist klar, dass die einzelnen Merkmale der hier gezeigten unterschiedlichen Ausführungsformen auch beliebig miteinander kombinierbar sind, um dadurch gemischte oder neue Ausführungsformen zu erzielen.It is clear that the individual features of the different embodiments shown here can also be combined with one another as desired, thereby achieving mixed or new embodiments.

Claims (13)

  1. A method for producing a housing (2) for an exhaust gas treatment device (1) for an exhaust system of a combustion engine,
    - wherein the housing (2) on the circumference-side comprises a jacket (4) and on the end-side at least one bottom (7),
    - wherein at least one such bottom (7) is produced as a spherical or spherical segment-shaped hood (8),
    - wherein in the hood (8) a connection opening (9) is introduced, which lies in an opening plane, the normal of which is inclined relative to the longitudinal centre axis (3) of the housing (2),
    - wherein a connection socket (10, 11) is attached to the hood (8) in the region of the connection opening (9),
    characterized in that
    the connection socket (11) with its connection end (12) facing the hood (8) lies in a plane (17) that is inclined relative to a normal plane (18) standing perpendicularly on the longitudinal centre axis (13) of the connection socket (11).
  2. The method according to Claim 1,
    characterized in that
    the connection socket (10, 11) is welded to the hood (8).
  3. The method according to Claim 1 or 2,
    characterized in that
    the connection socket (10, 11) is configured rectilinearly.
  4. The method according to any one of the Claims 1 to 3,
    characterized in that
    the connection socket (10, 11) at its connection end (12) facing the hood (8) is shaped complementarily to the outer contour of the hood (8).
  5. The method according to any one of the Claims 1 to 4,
    characterized in that
    the plane (17) is inclined relative to the normal plane (18) so far that an angle of 90° is set between the longitudinal centre axis (3) of the housing (2) and the longitudinal centre axis (13) of the connection socket (11).
  6. A housing for an exhaust gas treatment device (1) for an exhaust system of a combustion engine, in particular of a motor vehicle,
    - wherein the housing (2) comprises a jacket (4) and at the end side at least one bottom (7),
    - wherein at least one such bottom (7) is configured as spherical or spherical segment-shaped hood (8),
    - wherein the hood (8) comprises a connection opening (9) that lies in an opening plane the normal of which is inclined relative to the longitudinal centre axis (3) of the housing (2),
    - wherein a connection socket (10, 11) is attached to the hood (8) in the region of the connection opening (9),
    characterized in that
    the connection socket (11) with its connection end (12) facing the hood (8) lies in a plane (17) that is inclined relative to a normal plane (18) standing perpendicularly on the longitudinal centre axis (13) of the connection socket (11).
  7. The housing according to Claim 6,
    characterized in that
    the connection socket (10, 11) is welded to the hood (8).
  8. The housing according to Claim 6 or 7,
    characterized in that
    the connection socket (10, 11) is configured rectilinearly.
  9. The housing according to any one of the Claims 6 to 8,
    characterized in that
    the connection socket (10, 11) at its connection end (12) facing the hood (8) is shaped complementarily to the outer contour of the hood (8).
  10. The housing according to any one of the Claims 6 to 9,
    characterized in that
    between the longitudinal centre axis (3) of the housing (2) and the longitudinal centre axis (13) of the connection socket (11) an angle of 90° is set.
  11. The housing according to any one of the Claims 6 to 10,
    characterized in that
    the hood (8) is releasably fastened to the jacket (4) by means of a clamp.
  12. The housing according to Claim 11,
    characterized in that
    on the hood (8) a circumferential collar (21) is integrally moulded, which interacts with the clamp.
  13. A kit for producing housings (2) of exhaust gas treatment devices (1) according to any one of the Claims 6 to 12 and/or for producing housings (2) of exhaust gas treatment devices (1) with the method according to any one of the Claims 1 to 5,
    - which comprises at least one jacket type for producing the jacket (4) of the housing (2),
    - which comprises at least one hood type for producing the respective bottom (7) of the housing (2),
    - which comprises at least one connection socket type for attaching the respective connection socket (10, 11) to the hood (8) provided with the connection opening (9).
EP10155413A 2009-04-02 2010-03-04 Method for manufacturing a casing for an exhaust gas treatment device and casing and kit Revoked EP2239434B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009015625A DE102009015625A1 (en) 2009-04-02 2009-04-02 Exhaust gas treatment device and associated production method

Publications (2)

Publication Number Publication Date
EP2239434A1 EP2239434A1 (en) 2010-10-13
EP2239434B1 true EP2239434B1 (en) 2012-05-16

Family

ID=42153694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10155413A Revoked EP2239434B1 (en) 2009-04-02 2010-03-04 Method for manufacturing a casing for an exhaust gas treatment device and casing and kit

Country Status (3)

Country Link
US (1) US20110083421A1 (en)
EP (1) EP2239434B1 (en)
DE (1) DE102009015625A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9387438B2 (en) 2014-02-14 2016-07-12 Tenneco Automotive Operating Company Inc. Modular system for reduction of sulphur oxides in exhaust

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523590A (en) * 1968-12-18 1970-08-11 Tenneco Inc Simplified muffler shell construction
US4969264A (en) * 1986-06-12 1990-11-13 Tennessee Gas Pipeline Company Catalytic converter and substrate support
DE102004023995A1 (en) * 2004-05-14 2005-12-08 Dr.Ing.H.C. F. Porsche Ag connecting device
EP1799980A1 (en) * 2004-09-08 2007-06-27 Donaldson Company, Inc. Construction for an engine exhaust system component
DE102005002857B4 (en) * 2005-01-20 2007-08-30 J. Eberspächer GmbH & Co. KG Modular system for an exhaust treatment device
FR2905405B1 (en) * 2006-09-01 2008-11-07 Renault Sas ARRANGEMENT FOR CONNECTING A DUCT TO A DEPOLLUTION MEMBER OF AN EXHAUST LINE OF A COMBUSTION ENGINE
US20080277016A1 (en) * 2007-05-09 2008-11-13 Covers Robertus W Exhaust tube interface for an exhaust treatment device

Also Published As

Publication number Publication date
DE102009015625A1 (en) 2010-10-07
EP2239434A1 (en) 2010-10-13
US20110083421A1 (en) 2011-04-14

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