WO2007134865A1 - Housing for a component of an exhaust system and such a component - Google Patents

Housing for a component of an exhaust system and such a component Download PDF

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Publication number
WO2007134865A1
WO2007134865A1 PCT/EP2007/004624 EP2007004624W WO2007134865A1 WO 2007134865 A1 WO2007134865 A1 WO 2007134865A1 EP 2007004624 W EP2007004624 W EP 2007004624W WO 2007134865 A1 WO2007134865 A1 WO 2007134865A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
component
tube
exhaust system
opening
Prior art date
Application number
PCT/EP2007/004624
Other languages
German (de)
French (fr)
Inventor
Alfred BLÜML
Hongjiang Cui
Erich Weigele
Original Assignee
Emcon Technologies Germany (Augsburg) 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
Application filed by Emcon Technologies Germany (Augsburg) Gmbh filed Critical Emcon Technologies Germany (Augsburg) Gmbh
Priority to US12/301,282 priority Critical patent/US20100012421A1/en
Priority to DE112007001212T priority patent/DE112007001212A5/en
Publication of WO2007134865A1 publication Critical patent/WO2007134865A1/en

Links

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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F01N13/1838—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

Definitions

  • the invention relates to a housing for a component of an exhaust system and such a component.
  • Combustion generated exhaust gas flow out of the engine compartment to the rear end of the vehicle, wherein many of the components of the exhaust system such as a muffler, a catalyst or a particulate filter are connected to each other via pipes.
  • the pipes are welded, for example, to the components of the exhaust system.
  • the connection of the tubes with the components must be durable even when a load occurs, for example in road bumps.
  • the object of the invention is to provide a housing for a component of an exhaust system, to which a pipe can be easily and permanently connected. It is another object of the invention to provide a
  • Components can be connected.
  • the invention provides a housing for a component of an exhaust system with an opening which is provided in the housing, and a tube which is arranged in the opening and is connected to the housing, wherein the tube protrudes from the housing and is connected behind the opening with a connecting pipe.
  • the tube extends out of the housing and is connected there to the connecting pipe.
  • the connecting pipe is therefore not connected directly to the housing with the pipe.
  • a weakening of the material by a weld, welding burn etc. is prevented.
  • the tube has a wall thickness of at most about 1, 2 mm and at least about 0.8 mm. Thanks to this lightweight construction, such an exhaust system has a very low weight.
  • the tube and the housing are gas-tightly connected to each other to prevent accidental leakage of the exhaust stream.
  • a gas-tight connection can be achieved by welding or soldering.
  • the preferred bonding method is high temperature soldering. High temperature soldering can be used in a thermally and mechanically highly stressed compound.
  • the tube and the connecting pipe are in particular gas-tightly connected to one another.
  • the connection of the tube and the housing takes place by welding or soldering, in particular high-temperature soldering.
  • a collar on the housing surrounding the opening is preferably provided a collar on the housing surrounding the opening.
  • the collar is in particular formed integrally with the housing.
  • the tube is connected to the collar of the housing, whereby the weld or Lötnahtstelle is increased. The stresses occurring in the material are thus transmitted over a larger area.
  • the tube at the end which is connected to the connecting pipe, a widening.
  • the connecting pipe is inserted into the pipe and then soldered or welded.
  • the invention relates to a component of an exhaust system with a housing of the type mentioned above and with a connecting pipe.
  • FIG. 1 Figure leash view of a portion of a housing according to the invention for a component of an exhaust system
  • FIG. 2 shows on an enlarged scale the region of FIG. 1 designated by X.
  • FIG. 1 schematically shows part of a component of an exhaust system in the form of a muffler 10.
  • the muffler 10 has a housing 12 made of a metallic material such as steel.
  • the housing 12 may be formed either in one piece or in several parts and has an opening 14 which is surrounded by an outwardly projecting collar 16 of the housing 12.
  • the housing 12 has a wall thickness W 1 of about 1, 2 mm and in the region of the collar 16 has a wall thickness W 2 of about 0.8 mm.
  • a pipe 18, which carries the exhaust gas flow In the housing 12, a pipe 18, which carries the exhaust gas flow.
  • the diameter of the tube 18 is selected so that the tube 18 rests against the collar 16 in the installed state.
  • the tube 18 is at the end, which projects from the housing 12, widened, so that a connecting pipe 20 can be inserted into the tube 18.
  • the expanded portion of the tube 18 is provided in Figure 2 by the reference numeral 21.
  • the assembly takes place as follows: The tube 18 is so in the
  • Silencer 10 is introduced so that it extends through the opening 14 and protrudes from the housing 12. Subsequently, the tube 18 is gas-tightly connected to the housing 12 by means of a first welding or soldering seam 22.
  • the connecting tube 20 is inserted from the left with respect to Figure 2 into the tube 18 and connected to the tube 18 by means of a second welding or soldering seam 24 gas-tight.
  • connection of the muffler 10, the tube 16 and the connecting tube 20 is characterized by a particularly high fatigue strength.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

A housing for a component of an exhaust system has an opening (14), which is provided in the housing (12), and a pipe (18) which is arranged in the opening (14) and is connected to the housing (12). The pipe (18) projects from the housing (12) and is connected just behind the opening (14) to a connecting pipe (20). The invention also relates to such a component.

Description

Gehäuse für eine Komponente einer Abgasanlage und eine solche Housing for a component of an exhaust system and such
Komponentecomponent
Die Erfindung betrifft ein Gehäuse für eine Komponente einer Abgasanlage sowie eine solche Komponente.The invention relates to a housing for a component of an exhaust system and such a component.
In Abgasanlagen eines Verbrennungskraftfahrzeuges wird der bei derIn exhaust systems of a combustion vehicle, the at the
Verbrennung erzeugte Abgasstrom aus dem Motorraum zum hinteren Ende des Fahrzeugs geführt, wobei viele der Komponenten der Abgasanlage wie ein Schalldämpfer, ein Katalysator oder ein Partikelfilter über Rohre miteinander verbunden sind. Die Rohre werden dazu beispielsweise an die Komponenten der Abgasanlage angeschweißt. Die Verbindung der Rohre mit den Komponenten muß auch bei Auftreten einer Belastung, beispielsweise bei Fahrbahnunebenheiten, dauerhaft sein.Combustion generated exhaust gas flow out of the engine compartment to the rear end of the vehicle, wherein many of the components of the exhaust system such as a muffler, a catalyst or a particulate filter are connected to each other via pipes. The pipes are welded, for example, to the components of the exhaust system. The connection of the tubes with the components must be durable even when a load occurs, for example in road bumps.
Die Aufgabe der Erfindung besteht darin, ein Gehäuse für eine Komponente einer Abgasanlage bereitzustellen, an das ein Rohr einfach und dauerhaft angeschlossen werden kann. Ferner ist es Aufgabe der Erfindung, eineThe object of the invention is to provide a housing for a component of an exhaust system, to which a pipe can be easily and permanently connected. It is another object of the invention to provide a
Komponente einer Abgasanlage bereitzustellen, die einfach mit anderenTo provide a component of an exhaust system easy with others
Komponenten verbunden werden kann.Components can be connected.
Zu diesem Zweck sieht die Erfindung ein Gehäuse für eine Komponente einer Abgasanlage vor mit einer Öffnung, die in dem Gehäuse vorgesehen ist, und einem Rohr, das in der Öffnung angeordnet ist und mit dem Gehäuse verbunden ist, wobei das Rohr aus dem Gehäuse herausragt und kurz hinter der Öffnung mit einem Anschlußrohr verbunden ist. Erfindungsgemäß erstreckt sich das Rohr aus dem Gehäuse heraus und wird dort mit dem Anschlußrohr verbunden. Das Anschlußrohr wird also nicht direkt am Gehäuse mit dem Rohr verbunden. Eine Schwächung des Materials durch eine Schweißnaht, Schweißeinbrand etc. wird so verhindert. Beim Auftreten einer Belastung, beispielsweise durch Fahrbahnunebenheiten oder vom Verbrennungsmotor übertragene Vibrationen, werden die im Material auftretenden Spannungen vielmehr auf eine größere Fläche verteilt. Es ergibt sich eine höhere Dauerfestigkeit. Vorzugsweise weist das Rohr eine Wandstärke von höchstens etwa 1 ,2 mm und mindestens etwa 0,8 mm auf. Dank dieser Leichtbauweise hat eine solche Abgasanlage ein sehr geringes Gewicht.To this end, the invention provides a housing for a component of an exhaust system with an opening which is provided in the housing, and a tube which is arranged in the opening and is connected to the housing, wherein the tube protrudes from the housing and is connected behind the opening with a connecting pipe. According to the invention, the tube extends out of the housing and is connected there to the connecting pipe. The connecting pipe is therefore not connected directly to the housing with the pipe. A weakening of the material by a weld, welding burn etc. is prevented. When a load occurs, for example due to uneven road surfaces or vibrations transmitted by the internal combustion engine, the stresses occurring in the material are rather distributed over a larger area. This results in a higher fatigue strength. Preferably, the tube has a wall thickness of at most about 1, 2 mm and at least about 0.8 mm. Thanks to this lightweight construction, such an exhaust system has a very low weight.
Bevorzugt sind das Rohr und das Gehäuse gasdicht miteinander verbunden, um ein ungewolltes Ausströmen des Abgasstromes zu verhindern. Eine solche gasdichte Verbindung kann durch Schweißen oder Löten erreicht werden. Das bevorzugte Verbindungsverfahren ist dabei Hochtemperaturlöten. Hochtemperaturlöten kann bei einer thermisch und mechanisch hoch belasteten Verbindung eingesetzt werden.Preferably, the tube and the housing are gas-tightly connected to each other to prevent accidental leakage of the exhaust stream. Such a gas-tight connection can be achieved by welding or soldering. The preferred bonding method is high temperature soldering. High temperature soldering can be used in a thermally and mechanically highly stressed compound.
Das Rohr und das Anschlußrohr sind insbesondere gasdicht miteinander verbunden. Die Verbindung des Rohres und des Gehäuses erfolgt durch Schweißen oder Löten, insbesondere Hochtemperaturlöten.The tube and the connecting pipe are in particular gas-tightly connected to one another. The connection of the tube and the housing takes place by welding or soldering, in particular high-temperature soldering.
Es ist vorzugsweise ein Kragen am Gehäuse vorgesehen, der die Öffnung umgibt. Der Kragen ist insbesondere einstückig mit dem Gehäuse ausgebildet. Das Rohr ist mit dem Kragen des Gehäuses verbunden, wodurch die Schweißoder Lötnahtstelle vergrößert wird. Die im Material auftretenden Spannungen werden so über eine größere Fläche übertragen.It is preferably provided a collar on the housing surrounding the opening. The collar is in particular formed integrally with the housing. The tube is connected to the collar of the housing, whereby the weld or Lötnahtstelle is increased. The stresses occurring in the material are thus transmitted over a larger area.
Vorzugsweise weist das Rohr an dem Ende, das mit dem Anschlußrohr verbunden ist, eine Aufweitung auf. Das Anschlußrohr wird in das Rohr gesteckt und anschließend damit verlötet oder verschweißt.Preferably, the tube at the end, which is connected to the connecting pipe, a widening. The connecting pipe is inserted into the pipe and then soldered or welded.
Ferner betrifft die Erfindung eine Komponente einer Abgasanlage mit einem Gehäuse der obengenannten Art und mit einem Anschlußrohr. Hinsichtlich der Vorteile wird auf die obigen Erläuterungen verwiesen.Furthermore, the invention relates to a component of an exhaust system with a housing of the type mentioned above and with a connecting pipe. With regard to the advantages, reference is made to the above explanations.
Weitere Merkmale und Vorteile ergeben sich aus den Unteransprüchen.Further features and advantages emerge from the subclaims.
Die Erfindung wird nachfolgend anhand einer Ausführungsform beschrieben, die in den Zeichnungen dargestellt ist. In den Zeichnungen zeigen:The invention will be described below with reference to an embodiment shown in the drawings. In the drawings show:
- Figur leine geschnittene Ansicht eines Teils eines erfindungsgemäßen Gehäuses für eine Komponente einer Abgasanlage, undFigure leash view of a portion of a housing according to the invention for a component of an exhaust system, and
- Figur 2 in einem vergrößerten Maßstab den mit X bezeichneten Bereich von Figur 1. In Figur 1 ist schematisch ein Teil einer Komponente einer Abgasanlage in Form eines Schalldämpfers 10 gezeigt. Der Schalldämpfer 10 hat ein Gehäuse 12, das aus einem metallischen Material wie Stahl besteht.FIG. 2 shows on an enlarged scale the region of FIG. 1 designated by X. FIG. 1 schematically shows part of a component of an exhaust system in the form of a muffler 10. The muffler 10 has a housing 12 made of a metallic material such as steel.
Das Gehäuse 12 kann entweder einstückig oder mehrteilig ausgebildet sein und hat eine Öffnung 14, die von einem nach außen vorstehenden Kragen 16 des Gehäuses 12 umgeben ist. Das Gehäuse 12 hat eine Wandstärke W1 von etwa 1 ,2 mm und im Bereich des Kragens 16 eine Wandstärke W2 von etwa 0,8 mm.The housing 12 may be formed either in one piece or in several parts and has an opening 14 which is surrounded by an outwardly projecting collar 16 of the housing 12. The housing 12 has a wall thickness W 1 of about 1, 2 mm and in the region of the collar 16 has a wall thickness W 2 of about 0.8 mm.
In dem Gehäuse 12 verläuft ein Rohr 18, das den Abgasstrom führt. Der Durchmesser des Rohres 18 ist so gewählt, daß das Rohr 18 im eingebauten Zustand am Kragen 16 anliegt. Das Rohr 18 ist an dem Ende, das aus dem Gehäuse 12 ragt, aufgeweitet, so daß ein Anschlußrohr 20 in das Rohr 18 gesteckt werden kann. Der aufgeweitete Abschnitt des Rohres 18 ist in Figur 2 mit dem Bezugszeichen 21 versehen.In the housing 12, a pipe 18, which carries the exhaust gas flow. The diameter of the tube 18 is selected so that the tube 18 rests against the collar 16 in the installed state. The tube 18 is at the end, which projects from the housing 12, widened, so that a connecting pipe 20 can be inserted into the tube 18. The expanded portion of the tube 18 is provided in Figure 2 by the reference numeral 21.
Der Zusammenbau erfolgt folgendermaßen: Das Rohr 18 wird so in denThe assembly takes place as follows: The tube 18 is so in the
Schalldämpfer 10 eingebracht, daß es sich durch die Öffnung 14 erstreckt und aus dem Gehäuse 12 herausragt. Anschließend wird das Rohr 18 mittels einer ersten Schweiß- oder Lötnaht 22 gasdicht mit dem Gehäuse 12 verbunden. Das Anschlußrohr 20 wird von bezüglich Figur 2 links in das Rohr 18 gesteckt und mit dem Rohr 18 mittels einer zweiten Schweiß- oder Lötnaht 24 gasdicht verbunden.Silencer 10 is introduced so that it extends through the opening 14 and protrudes from the housing 12. Subsequently, the tube 18 is gas-tightly connected to the housing 12 by means of a first welding or soldering seam 22. The connecting tube 20 is inserted from the left with respect to Figure 2 into the tube 18 and connected to the tube 18 by means of a second welding or soldering seam 24 gas-tight.
Die Dauerhaftigkeit der Verbindungen wird erhöht, da ein Schweißeinbrand verhindert wird. Aufgrund des Kragens 16 und des Einsteckens des Anschlußrohres 20 wird ferner eine größere Schweiß- oder Lötnahtstelle hergestellt, so daß sich die Spannungen auf eine größere Fläche verteilen. Die Verbindung des Schalldämpfers 10, des Rohres 16 und des Anschlußrohres 20 zeichnet sich durch eine besonders hohe Dauerfestigkeit aus. The durability of the connections is increased because a welding penetration is prevented. Due to the collar 16 and the insertion of the connecting tube 20, a larger welding or Lötnahtstelle is also made, so that distribute the stresses over a larger area. The connection of the muffler 10, the tube 16 and the connecting tube 20 is characterized by a particularly high fatigue strength.

Claims

Patentansprüche claims
1. Gehäuse für eine Komponente einer Abgasanlage, mit einer Öffnung (14), die in dem Gehäuse (12) vorgesehen ist, und einem Rohr (18), das in der Öffnung (14) angeordnet ist und mit dem Gehäuse (12) verbunden ist, wobei das Rohr (18) aus dem Gehäuse (12) herausragt und kurz hinter der Öffnung (14) mit einem Anschlußrohr (20) verbunden ist.A housing for a component of an exhaust system, comprising an opening (14) provided in the housing (12) and a tube (18) disposed in the opening (14) and connected to the housing (12) is, wherein the tube (18) protrudes from the housing (12) and is connected just behind the opening (14) with a connecting tube (20).
2. Gehäuse nach Anspruch 1 , dadurch gekennzeichnet, daß das Gehäuse (12) eine Wandstärke (W1, W2) von höchstens etwa 1 ,2 mm und mindestens etwa 0,8 mm aufweist.2. Housing according to claim 1, characterized in that the housing (12) has a wall thickness (W 1 , W 2 ) of at most about 1, 2 mm and at least about 0.8 mm.
3. Gehäuse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Rohr (18) und das Gehäuse (12) gasdicht miteinander verbunden sind.3. Housing according to claim 1 or 2, characterized in that the tube (18) and the housing (12) are connected to each other in a gastight manner.
4. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Rohr (18) und das Anschlußrohr (20) gasdicht miteinander verbunden sind.4. Housing according to one of the preceding claims, characterized in that the tube (18) and the connecting pipe (20) are connected to each other in a gastight manner.
5. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Kragen (16) am Gehäuse (12) vorgesehen ist, der die Öffnung (14) umgibt.5. Housing according to one of the preceding claims, characterized in that a collar (16) on the housing (12) is provided, which surrounds the opening (14).
6. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Rohr (18) an dem Ende, das mit dem Anschlußrohr6. Housing according to one of the preceding claims, characterized in that the tube (18) at the end, with the connecting pipe
(20) verbunden ist, eine Aufweitung (21) aufweist.(20), has a widening (21).
7. Komponente einer Abgasanlage mit einem Gehäuse nach einem der vorhergehenden Ansprüchen und einem Anschlußrohr (20).7. component of an exhaust system with a housing according to one of the preceding claims and a connecting tube (20).
8. Komponente nach Anspruch 7, dadurch gekennzeichnet, daß die Komponente ein Schalldämpfer (10) ist. 8. Component according to claim 7, characterized in that the component is a muffler (10).
PCT/EP2007/004624 2006-05-24 2007-05-24 Housing for a component of an exhaust system and such a component WO2007134865A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/301,282 US20100012421A1 (en) 2006-05-24 2007-05-24 Housing For A Component of An Exhaust System, and Such a Component
DE112007001212T DE112007001212A5 (en) 2006-05-24 2007-05-24 Housing for a component of an exhaust system and such a component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006008458.4 2006-05-24
DE202006008458 2006-05-24

Publications (1)

Publication Number Publication Date
WO2007134865A1 true WO2007134865A1 (en) 2007-11-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/004624 WO2007134865A1 (en) 2006-05-24 2007-05-24 Housing for a component of an exhaust system and such a component

Country Status (3)

Country Link
US (1) US20100012421A1 (en)
DE (1) DE112007001212A5 (en)
WO (1) WO2007134865A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090110950A1 (en) * 2007-10-25 2009-04-30 Joachim Hildebrand Sheet metal part, in particular of an exhaust gas system

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GB744434A (en) * 1953-10-16 1956-02-08 Frank Hankinson Kyffin Improvements in or relating to silencers for exhaust gases
US3680660A (en) * 1970-07-27 1972-08-01 Tenneco Inc Multi-louvered roughness silencer
JPS582411A (en) * 1981-06-29 1983-01-08 Nissan Motor Co Ltd Silencer
GB2141802A (en) * 1983-06-15 1985-01-03 Ti Bainbridge Silencers Ltd Pipe joints-exhaust system
DE20023647U1 (en) * 1999-06-17 2005-04-21 Scambia Industrial Developments Ag Method to join connection sections of at least two components of vehicle exhaust gas unit; involves arranging metal sections next to each other, welding and heating below metal melting point

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Publication number Priority date Publication date Assignee Title
GB744434A (en) * 1953-10-16 1956-02-08 Frank Hankinson Kyffin Improvements in or relating to silencers for exhaust gases
US3680660A (en) * 1970-07-27 1972-08-01 Tenneco Inc Multi-louvered roughness silencer
JPS582411A (en) * 1981-06-29 1983-01-08 Nissan Motor Co Ltd Silencer
GB2141802A (en) * 1983-06-15 1985-01-03 Ti Bainbridge Silencers Ltd Pipe joints-exhaust system
DE20023647U1 (en) * 1999-06-17 2005-04-21 Scambia Industrial Developments Ag Method to join connection sections of at least two components of vehicle exhaust gas unit; involves arranging metal sections next to each other, welding and heating below metal melting point

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090110950A1 (en) * 2007-10-25 2009-04-30 Joachim Hildebrand Sheet metal part, in particular of an exhaust gas system

Also Published As

Publication number Publication date
US20100012421A1 (en) 2010-01-21
DE112007001212A5 (en) 2009-03-12

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