EP1895120B1 - Boîtier pour un composant de purification des gaz d'échappement formant un joint de connexion avec une section d'un tuyau d'échappement. - Google Patents

Boîtier pour un composant de purification des gaz d'échappement formant un joint de connexion avec une section d'un tuyau d'échappement. Download PDF

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Publication number
EP1895120B1
EP1895120B1 EP07015261A EP07015261A EP1895120B1 EP 1895120 B1 EP1895120 B1 EP 1895120B1 EP 07015261 A EP07015261 A EP 07015261A EP 07015261 A EP07015261 A EP 07015261A EP 1895120 B1 EP1895120 B1 EP 1895120B1
Authority
EP
European Patent Office
Prior art keywords
housing
receptacle
exhaust
line section
exhaust pipe
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 - Fee Related
Application number
EP07015261A
Other languages
German (de)
English (en)
Other versions
EP1895120A1 (fr
EP1895120B2 (fr
Inventor
Joachim Dr. Diringer
Friedrich-Wilhelm Kaiser
Jörg Gutowski
Christian Howe
Elmar Grussmann
Christian Dr. Smatloch
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.)
Benteler Automobiltechnik GmbH
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
Benteler Automobiltechnik GmbH
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 Emitec Gesellschaft fuer Emissionstechnologie mbH, Benteler Automobiltechnik GmbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of EP1895120A1 publication Critical patent/EP1895120A1/fr
Publication of EP1895120B1 publication Critical patent/EP1895120B1/fr
Application granted granted Critical
Publication of EP1895120B2 publication Critical patent/EP1895120B2/fr
Expired - Fee Related 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
    • F01N13/1838—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
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
    • 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
    • F01N13/1844—Mechanical joints
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing

Definitions

  • the present invention relates to a housing for an exhaust gas purification component that includes an interior.
  • Such housings with exhaust gas purification components find particular use in the exhaust gas treatment of mobile internal combustion engines.
  • housings are, as far as possible, relatively thick-walled, in order to enable the housing to be welded to the exhaust gas line.
  • housings which have a rectangular angled housing portion in the manner of a collar, which is positioned between two exhaust pipe sections and connected by joining technology. The known approaches have proven themselves many times, but can not be used in special applications.
  • the integration or attachment of the housing in an exhaust pipe is particularly problematic when the housing is made relatively thin-walled. This is true, for example, for housings having a case thickness of at most 1.5 mm or even less than 0.8 mm. With such thin-walled housings can be produced virtually no simple welded joints that permanently withstand the aggressive environmental conditions in the exhaust system of a motor vehicle. The high thermal and dynamic loads occurring there would result in the short-term failure of the simple welded joints between the housing and the exhaust pipe.
  • the connection between the exhaust pipe and the housing of the exhaust gas purification component is generated by a holding plate, which is cohesively and positively connected to the exhaust pipe with the housing.
  • the DE - U - 202 00 599 discloses an arrangement of two housings of exhaust conduit components which are telescoped and interconnected by means of through-welding.
  • the WO-A1-94 / 18441 proposes the connection of the housing of a honeycomb body with the exhaust pipe via a weld or via a detachable flange.
  • a joint connection for thin-walled, weight-reduced housing or exhaust gas purification components is to be specified, with which a permanent welded connection can be realized towards the exhaust pipe.
  • the installation of exhaust gas purification components in exhaust systems of motor vehicles should be made possible cost-effective even under mass production conditions.
  • the exhaust system comprises at least a first exhaust pipe section and a housing with an exhaust gas purification component, wherein the housing encloses an interior and with the housing outside at least one receptacle is formed.
  • the receptacle is formed by bending over part of the housing.
  • the first exhaust pipe section is received within the receptacle and materially connected to the receptacle, wherein the part of the housing, which is materially connected to the exhaust pipe section, is positioned outside of the exhaust pipe section.
  • the fact that the receptacle is formed with the housing itself means in particular that the receptacle is integrally connected to the housing or constitutes a part of the housing itself (eg also made of the same material).
  • the shape of the example tube-like housing has been changed so that the recording is formed.
  • a receptacle extending essentially around the outside of the housing is formed.
  • the receptacle can be formed by means of an outer circumferential part of the housing, but it is also possible that a plurality of housing sections (eg in the manner of a multi-slotted collar) forms the receptacle.
  • the at least one receptacle is provided near an end face of the housing.
  • the embodiment variant is preferred in which the at least one receptacle is formed with a part of the housing, which is spaced parallel to another area of the housing.
  • the part of the housing and the region of the housing are aligned substantially coaxially with each other. This can be done for example by forming or bending over part of the housing near the end face. In this case, the part of the housing is bent so far that it is arranged approximately parallel to the exhaust gas purification component receiving area.
  • the housing has a housing thickness in the range of 0.4 to 1.0 mm and the receptacle is formed by bending over part of the housing, wherein a bending radius in Range of 3 to 8 mm and the recording has a length of at least 7 mm.
  • the housing thickness can be carried out in particular with a housing thickness less than 0.6 mm.
  • the bending radius is then preferably in the range of 5 mm.
  • a stable contact of the housing is to be mounted on the exhaust pipe section during assembly ensured.
  • an exhaust system comprising at least a first exhaust pipe section and a housing according to the invention described with an exhaust gas purifying component
  • the first exhaust pipe section is engaged with the receptacle and the first exhaust pipe section and the receptacle are connected to each other cohesively.
  • the first exhaust-gas conduit section is positioned within the receptacle and outside the interior of the housing, wherein an engagement encompassing the housing is formed approximately.
  • at least part of the exhaust pipe section extends into the receptacle, so that its end is in particular encompassed by the housing.
  • At least one second exhaust-gas line section is positioned on the side of the receptacle opposite the first exhaust-gas line section and connected in a material-locking manner to the receptacle. This results in a sandwich-like arrangement of the exhaust pipe sections with intermediate part of the housing. In this way, the possibility is created in particular to provide a sufficient material thickness in the area of the cohesive connection and at the same time to provide a very space-saving arrangement for joining technology.
  • the exhaust system is then good to weld, if a material thickness of at least 2.5 mm is provided in the region of the cohesive connection by means of the at least one exhaust pipe section and the receiving part of the housing. Particularly preferably, a material thickness of at least 3 mm to 3.5 mm is proposed. It can be assumed in terms of the parts to be joined together of a housing thickness in the range of 0.4 to 0.6 mm and a line thickness of the exhaust pipe sections in the range of 0.5 to 2.0 mm, which is of course not mandatory.
  • an exhaust system in which the cohesive connection is realized by means of a continuous weld.
  • the weld surrounds in particular the circumference of the housing, which may optionally be designed to overlap.
  • a motor vehicle comprising an internal combustion engine and an exhaust system of the type described herein according to the invention, in which an exhaust gas from the internal combustion engine can flow in a flow direction through the exhaust system, wherein the housing has the receptacle on a front side and is positioned so that the end face with the receptacle forms the inlet end face for the exhaust gas.
  • the exhaust gas initially impinges on the front side or inlet end side of the housing or the exhaust gas purification component, on which the receptacle is formed. Due to the rear configuration of the receptacle, a protected position for the weld is given.
  • the housing is pressed onto the first exhaust pipe section by the inflow of the exhaust gas, so that a secure bond between the exhaust system and the housing is ensured here even under particularly high loads.
  • the housing is held in the region of an outlet end face with a distance to the at least one exhaust pipe section, wherein fixing means are provided in this distance.
  • fixing means serve, in particular, for aligning this housing region with the exhaust gas line, with relative movements possibly being made possible in order to allow a different thermal expansion behavior of the housing and exhaust gas line section essentially without tension.
  • the fixing means which are embodied, for example, in the manner of a wire mesh or the like, can fulfill further functions, so that they can optionally comprise means for sealing and / or catalytic conversion of the exhaust gas.
  • the welding joining of the exhaust pipe sections with the receptacle may include the following production steps: positioning of the parts to be joined in an adequate arrangement and welding with an arc welding process with or without additional material.
  • a resistance spot welding or seam welding can be used advantageously. This is a very low heat input to avoid thermal expansion can be realized.
  • the addition of the second exhaust pipe section is preferably carried out by a fusion welding process, wherein optionally also a third Exhaust line section can be drawn with. It is preferred here that the relatively thin housing between the relatively thick-walled first and third exhaust pipe section is arranged, and is melted locally during welding.
  • Fig. 1 shows schematically and in a partial cross section a housing 1 with a housing thickness 4 in the range of 0.5 mm.
  • an exhaust gas purification component 2 is indicated in the interior 3 of the housing 1.
  • the housing 1 has now near a front side 5 outside a circumferentially formed receptacle 4.
  • This receptacle 4 has been produced by bending over part of the housing 1. In this case, a bending radius 7 in the range of 5 mm was realized.
  • the rearwardly bent part of the housing 1, which is executed substantially parallel to the region of the housing 1, which forms the inner space 3, has a length of 7 to 10 mm.
  • a first exhaust pipe section 10 is now arranged, wherein this is brought to the outer part of the receptacle 4 forming housing 1 to the plant.
  • this contact region which is preferably formed circumferentially around the housing 1, now the cohesive connection 12th intended.
  • a corresponding material thickness 13 is provided.
  • FIG. 2 A further embodiment for such an exhaust system 9 is in the Fig. 2 illustrated.
  • the housing 1 can be seen in the partial cross-section, which accommodates an exhaust gas purification component 2 in the interior.
  • the exhaust gas purification component 2 is constructed, for example, in the manner of a honeycomb body from a plurality of metal foils 23 which form passages 22 through which exhaust gas can flow in a flow direction 16.
  • the housing 1 or the exhaust gas purification component 2 now has, after orientation in the exhaust system 9 with respect to the flow direction 16, a defined inlet end face 17 and an outlet end side 18.
  • the receptacle 4 is formed. Also in this embodiment, the first exhaust pipe section 10 is engaged with this receptacle 4. In addition, further components of the exhaust pipe are positioned further out, outside the receptacle 4. Thus, first, a third exhaust pipe section 21 (for example, with a line thickness of about 0.5 mm) outside of the receptacle 4 brought to bear. This third exhaust pipe section 21 may, for example, accommodate further exhaust gas purification components and / or allow a directed inflow of the exhaust gases into the exhaust gas purification component 2.
  • the outer end forms in this embodiment now a second exhaust pipe section 11, so that the first exhaust pipe section 10 and the second exhaust pipe section 11 in the manner of a sandwich the third exhaust pipe section 21 and the receptacle 4 of the housing 1 record.
  • a material thickness in the region of the fluid connection 12 which is for example above 3 mm and which ensure a permanent weld. This applies in particular with regard to the thin-walled or weight-reduced housing of the exhaust gas purification component used here.
  • the welded connection which is also referred to as so-called "tube canning", is advantageous especially in these thin-walled housings.
  • FIG. 3 Shown is a motor vehicle 14 with an internal combustion engine 15.
  • the exhaust gas generated in the internal combustion engine 15 flows in a flow direction 16 through the exhaust system 9, being supplied to various exhaust gas purification components (such as catalysts, filters, absorbers and the like).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Claims (9)

  1. Système de gaz d'échappement (9), comprenant au moins une première section de conduite de gaz d'échappement (10) et un boîtier (1) avec un composant de purification de gaz d'échappement (2), le boîtier (1) incluant une chambre intérieure (3) et à l'extérieur un logement (4) étant au moins formé avec le boîtier, le logement (4) étant formé par le rabattement d'une partie du boîtier (1) ; la première section de conduite de gaz d'échappement (10) étant en outre reçue à l'intérieur du logement (4) et la première section de conduite de gaz d'échappement (10) étant reliée au logement (4) de façon matériellement jointive, la partie du boîtier (1) étant reliée de façon matériellement jointive avec la section de conduite de gaz d'échappement (10) est positionnée à l'extérieur de la section de conduite de gaz d'échappement (10).
  2. Système de gaz d'échappement (9) selon la revendication 1, où l'au moins un logement (4) est prévu à proximité d'une face frontale (5) du boîtier (1).
  3. Système de gaz d'échappement (9) selon la revendication 1 ou 2, où l'au moins un logement (4) est formé avec une partie du boîtier (1) qui est espacée parallèlement par rapport à une autre région du boîtier (1).
  4. Système de gaz d'échappement (9) selon l'une des revendications précédentes, où le boîtier (1) a une épaisseur de boîtier (6) dans l'ordre de 0,4 à 1,0 millimètres et le logement (4) est formé par le rabattement d'une partie du boîtier (1), un rayon de courbure (7) se trouvant dans l'ordre de 3 à 8 millimètres et le logement (4) ayant une longueur (8) d'au moins 7 millimètres.
  5. Système de gaz d'échappement (9) selon l'une des revendications précédentes, dan le cas de laquelle au moins une deuxième section de conduite de gaz d'échappement (11) est positionnée sur le coté du logement (4) se trouvant en vis-à-vis de la première section de conduite de gaz d'échappement (10) et est reliée au logement (4) de façon matériellement jointive.
  6. Système de gaz d'échappement (9) selon l'une des revendications précédentes, dans le cas duquel dans la région de la liaison matériellement jointive (12) une grosseur du matériau (13) d'au moins 2,5 millimètres est prévue à l'aide de l'au moins une section de conduite de gaz d'échappement et de la partie du boîtier (1) formant le logement (4).
  7. Système de gaz d'échappement (9) selon l'une des revendications précédentes, dans le cas duquel la liaison matériellement jointive (12) comprend un cordon de soudure continu.
  8. Véhicule automobile (14) comprenant une machine à combustion interne (15) et un système de gaz d'échappement (9) selon l'une des revendications précédentes, dans le cas duquel un gaz d'échappement peut s'écouler à partir de la machine à combustion interne (15) dans un sens d'écoulement (16) à travers le système de gaz d'échappement (9), le boîtier (1) ayant le logement (4) au niveau d'une face frontale (5) et étant positionné de manière telle que la face frontale (5) forme avec le logement (4) la face frontale d'entrée (17) pour le gaz d'échappement.
  9. Véhicule automobile (15) selon la revendication 8, dans quel cas dans la région de la face frontale de sortie (18) le boîtier (1) est maintenu avec une distance (19) par rapport à l'au moins une section de conduite de gaz d'échappement (10), des moyens de fixation (20) étant prévus dans cette distance (19).
EP07015261.6A 2006-09-04 2007-08-03 Boîtier pour un composant de purification des gaz d'échappement formant un joint de connexion avec une section d'un tuyau d'échappement. Expired - Fee Related EP1895120B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006041743A DE102006041743A1 (de) 2006-09-04 2006-09-04 Gehäuse für eine Abgasreinigungskomponente zur Ausbildung einer Fügeverbindung mit einem Abgasleitungsabschnitt

Publications (3)

Publication Number Publication Date
EP1895120A1 EP1895120A1 (fr) 2008-03-05
EP1895120B1 true EP1895120B1 (fr) 2009-10-07
EP1895120B2 EP1895120B2 (fr) 2013-06-05

Family

ID=38752409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07015261.6A Expired - Fee Related EP1895120B2 (fr) 2006-09-04 2007-08-03 Boîtier pour un composant de purification des gaz d'échappement formant un joint de connexion avec une section d'un tuyau d'échappement.

Country Status (4)

Country Link
US (1) US7762063B2 (fr)
EP (1) EP1895120B2 (fr)
JP (1) JP5283358B2 (fr)
DE (2) DE102006041743A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5435730B2 (ja) * 2010-04-19 2014-03-05 バブコック日立株式会社 脱硝装置
DE102010022218A1 (de) 2010-05-21 2011-11-24 Benteler Automobiltechnik Gmbh Abgasturbolader
DE102012009090A1 (de) * 2012-05-09 2013-11-14 Benteler Automobiltechnik Gmbh Anbindung eines doppelwandigen Turboladergehäuses
DE112015006077A5 (de) * 2015-01-29 2017-11-02 Faurecia Emissions Control Technologies, Germany Gmbh Verfahren zur Herstellung eines zylindrischen Gehäuses einer Abgasanlage sowie ein Verfahren zur Herstellung einer Abgasbehandlungseinheit

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
JPS60135614A (ja) * 1983-12-23 1985-07-19 Sankei Giken Kogyo Kk 触媒コンバ−タ
DE4303950C1 (de) * 1993-02-10 1994-10-06 Emitec Emissionstechnologie In einem inneren und einem äußeren Mantelrohr gehalterter metallischer Wabenkörper, insbesondere Katalysator-Trägerkörper
DE4316870C2 (de) † 1993-05-19 1997-07-31 Eberspaecher J Verfahren zum Herstellen einer Abgasreinigungsvorrichtung
BR9504071A (pt) † 1995-09-19 1997-10-14 Gillet Heinrich Gmbh Catalisador de gases de descarga para motores de combustão interna
US6923942B1 (en) * 1997-05-09 2005-08-02 3M Innovative Properties Company Compressible preform insulating liner
JP3781099B2 (ja) 2000-06-02 2006-05-31 トヨタ自動車株式会社 中空製品、流体処理システム、および中空部材の接合方法
JP3738828B2 (ja) * 2001-01-19 2006-01-25 トヨタ自動車株式会社 二重管構造中空部材、その製造方法、および二重管構造中空部材を使用した流体処理システム
DE20200599U1 (de) 2002-01-16 2002-06-20 Gillet Heinrich Gmbh Vorrichtung zum Reinigen der Abgase von Verbrennungsmotoren
DE10223838C1 (de) * 2002-05-28 2003-10-16 Benteler Automobiltechnik Gmbh Anordnung zur Führung von Abgasen
JP4292031B2 (ja) * 2003-03-31 2009-07-08 本田技研工業株式会社 排気管への触媒体固定構造
DE10331693B4 (de) 2003-07-14 2005-11-03 Roth-Technik Austria Ges.M.B.H. Abgasreinigungsanordnung einer Abgasanlage einer Brennkraftmaschine eines Nutzfahrzeugs
DE102004021196B4 (de) * 2004-04-29 2006-10-05 J. Eberspächer GmbH & Co. KG Luftspaltisolierter Abgaskrümmer

Also Published As

Publication number Publication date
US7762063B2 (en) 2010-07-27
DE502007001666D1 (de) 2009-11-19
US20080053079A1 (en) 2008-03-06
JP2008064090A (ja) 2008-03-21
DE102006041743A1 (de) 2008-03-27
JP5283358B2 (ja) 2013-09-04
EP1895120A1 (fr) 2008-03-05
EP1895120B2 (fr) 2013-06-05

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