Component of an exhaust system

Patent metadata

Field	Value
Publication number	US-2016108792-A1
Application number	US-201514885105-A
Country	US
Kind code	A1
Filing date	Oct 16, 2015
Priority date	Oct 17, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

A component ( 6 ) of an exhaust system ( 1 ) for an internal combustion engine ( 3 ), of a motor vehicle, has a housing including a shell ( 12 ), two end bottoms ( 13, 14 ) and an intermediate bottom ( 15, 16 ). The shell ( 12 ) encloses an interior space ( 18 ) of the housing ( 11 ) in a circumferential direction ( 19 ). The two end bottoms ( 13, 14 ) delimit the interior space ( 18 ) in an axial direction ( 17 ) at opposite ends and are fixed to the shell ( 12 ). The intermediate bottom ( 15 ) is arranged in the interior space ( 18 ) axially between the end bottoms ( 13, 14 ) and is radially supported on the shell ( 12 ). A holding pipe ( 22 ), for connection of the component ( 6 ) to a system periphery ( 9 ), is radially held on the intermediate bottom ( 15 ) in the interior space ( 18 ), passes through one end bottom ( 13 ), is fastened thereon and is closed off in a gas-tight manner.

First claim

What is claimed is:

1 . An exhaust system component for an internal combustion engine of a motor vehicle, the exhaust system component comprising:
a housing comprising a shell, two end bottoms and at least one intermediate bottom, wherein:
the shell encloses an interior space of the housing in a circumferential direction;
the two end bottoms are connected to the shell in a fixed manner and delimit the interior space in an axial direction, at opposite ends; and
the intermediate bottom is arranged in the interior space, axially between the end bottoms, and radially supported on the shell; and
at least one holding pipe which is held on the intermediate bottom in the interior space, the at least one holding pipe being passed through one of the two end bottoms in a pass through region and being fastened on the one of the two end bottoms, the one of the two end bottoms being closed off in a gas-tight manner in the a pass through region.

2 . An exhaust system component according to claim 1 , further comprising an annular collar wherein the one of the two end bottoms comprises a bottom aperture, through which the holding pipe is passed and which is enclosed by the annular collar, the annular collar being connected to the holding pipe in a gas-tight and fixed manner.

3 . An exhaust system component according to claim 1 , further comprising a holder for connecting the component to a periphery of the exhaust system, wherein the holder is fastened to the holding pipe, on an outside of the one of the two end bottoms, facing away from the interior space.

4 . An exhaust system component according to claim 3 , wherein the holder comprises a pipe body, which is axially plugged with the holding pipe and is connected to the holding pipe in a fixed manner.

5 . An exhaust system component according to claim 3 , further comprising:
an annular collar wherein the one of the two end bottoms comprises a bottom aperture, through which the holding pipe is passed and which is enclosed by the annular collar, the annular collar being connected to the holding pipe in a gas-tight and fixed manner; and a common weld seam, wherein: the holder comprises a pipe body, which is axially plugged with the holding pipe and is connected to the holding pipe in a fixed manner; and the pipe body, the holding pipe and the annular collar are fastened to one another by the common weld seam.

6 . An exhaust system component according to claim 1 , wherein:
the holding pipe has a stepped cross section; and the holding pipe, in the region of the one of the two end bottoms, has a larger cross section than in a region of the intermediate bottom.

7 . An exhaust system component according to claim 6 , wherein:
the pipe body is plugged into the holding pipe; and an annular step of the holding pipe, which separates two regions of different cross sections from one another, provides an axial stop for limiting a plug-in depth of the pipe body.

8 . An exhaust system component according to claim 3 , wherein:
the holder comprises a holding arm; the holding arm comprises a holder aperture, into which the holding pipe is plugged; and the holding arm is fastened to the holding pipe in the region of the holder aperture.

9 . An exhaust system component according to claim 8 , wherein:
the holding arm is a hollow body and comprises two walls running parallel, which each comprise a wall aperture, which jointly form the holder aperture; and the holding pipe is connected to both walls in a fixed manner.

10 . An exhaust system component according to claim 1 , wherein the holding pipe is fastened to the intermediate bottom on a side of the intermediate bottom facing the one of the two end bottoms.

11 . An exhaust system component according to claim 1 , wherein the holding pipe penetrates the intermediate bottom in a corresponding bottom aperture and is radially supported on an aperture edge.

12 . An exhaust system component according to claim 1 , wherein that the holding pipe comprises a closure, which closes off the holding pipe in a gas-tight manner.

13 . An exhaust system component according to claim 12 , wherein that the closure is configured as a cap, which cap is plugged onto an axial end of the holding pipe.

14 . An exhaust system component according to claim 13 , wherein that the cap, in a region of the intermediate bottom, is arranged on the holding pipe and is connected in a fixed manner to the intermediate bottom and to the holding pipe.

15 . An exhaust system for an internal combustion engine of a motor vehicle, the exhaust system comprising:
an exhaust line with an inlet side comprising at least one exhaust manifold and with an outlet side comprising at least one end pipe; and at least one component comprising: a housing comprising a shell, two end bottoms and at least one intermediate bottom, wherein:
the shell encloses an interior space of the housing in a circumferential direction;
the two end bottoms are connected to the shell in a fixed manner and delimit the interior space in an axial direction, at opposite ends; and
the intermediate bottom is arranged in the interior space, axially between the end bottoms, and radially supported on the shell; and
at least one holding pipe which is held on the intermediate bottom in the interior space, the at least one holding pipe being passed through one of the two end bottoms in a pass through region and being fastened on the one of the two end bottoms, the one of the two end bottoms being closed off in a gas-tight manner in the a pass through region, wherein the at least one component is arranged in the exhaust line.

16 . An exhaust system component according to claim 15 , further comprising:
an annular collar wherein the one of the two end bottoms comprises a bottom aperture, through which the holding pipe is passed and which is enclosed by the annular collar, the annular collar being connected to the holding pipe in a gas-tight and fixed manner; and a common weld seam, wherein the holder comprises a pipe body, which is axially plugged with the holding pipe and is connected to the holding pipe in a fixed manner, wherein: the pipe body, the holding pipe and the annular collar are fastened to one another by the common weld seam.

17 . An exhaust system according to claim 15 , further comprising a holder for connecting the component to a periphery of the exhaust system, wherein the holder is fastened to the holding pipe, on an outside of the one of the two end bottoms, facing away from the interior space,
wherein that the holder comprises a pipe body, which is axially plugged with the holding pipe and is connected to the holding pipe in a fixed manner.

18 . An exhaust system component according to claim 17 , further comprising:
an annular collar wherein the one of the two end bottoms comprises a bottom aperture, through which the holding pipe is passed and which is enclosed by the annular collar, the annular collar being connected to the holding pipe in a gas-tight and fixed manner; and a common weld seam, wherein: the holder comprises a pipe body, which is axially plugged with the holding pipe and is connected to the holding pipe in a fixed manner; and the pipe body, the holding pipe and the annular collar are fastened to one another by the common weld seam.

19 . An exhaust system according to claim 16 , wherein:
the holding pipe has a stepped cross section; and the holding pipe, in the region of the one of the two end bottoms, has a larger cross section than in a region

Assignees

• Eberspaecher Exhaust Tech Gmbh

Inventors

• Kobe Jürgen
• Berkemer Frank
• Sring Martin
• Müller Frank

Classifications

• F01N1/08

  by reducing exhaust energy by throttling or whirling · CPC title

• F01N2260/18

  for improving rigidity, e.g. by wings, ribs · CPC title

• F01N13/1822

  for fixing exhaust pipes or devices to vehicle body · CPC title

• F01N13/1827

  Sealings specially adapted for exhaust systems (sealings in general F16J15/00) · CPC title

• F01N13/082

  of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation (F01N13/20 takes precedence) · CPC title