US20080041659A1 - Housing for a Component of an Exhaust System - Google Patents

Housing for a Component of an Exhaust System Download PDF

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Publication number
US20080041659A1
US20080041659A1 US11/576,993 US57699305A US2008041659A1 US 20080041659 A1 US20080041659 A1 US 20080041659A1 US 57699305 A US57699305 A US 57699305A US 2008041659 A1 US2008041659 A1 US 2008041659A1
Authority
US
United States
Prior art keywords
housing
opening
width
edge sections
edge section
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.)
Abandoned
Application number
US11/576,993
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English (en)
Inventor
Reinhold Stammel
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.)
Faurecia Emissions Control Technologies Germany GmbH
Original Assignee
ArvinMeritor Emissions Technologies 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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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35998564&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20080041659(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ArvinMeritor Emissions Technologies GmbH filed Critical ArvinMeritor Emissions Technologies GmbH
Assigned to ARVINMERITOR EMISSIONS TECHNOLOGIES GMBH reassignment ARVINMERITOR EMISSIONS TECHNOLOGIES GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STAMMEL, REINHOLD
Publication of US20080041659A1 publication Critical patent/US20080041659A1/en
Assigned to EMCON TECHNOLOGIES GERMANY (AUGSBURG) GMBH reassignment EMCON TECHNOLOGIES GERMANY (AUGSBURG) GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ARVINMERITOR EMISSIONS TECHNOLOGIES GMBH
Abandoned legal-status Critical Current

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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
    • 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
    • F01N13/14—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 having thermal insulation
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • 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
    • 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 housing for a component of an exhaust system, comprising first and second half-shells which are connected to each other at least in sections by means of an edge section, and at least one opening for a pipe which is to be connected to the housing.
  • Housings of this type are in practical use and are employed for various components of the exhaust system, such as, e.g., for catalytic converters, diesel particulate filters, and especially for mufflers.
  • FIG. 1 shows, by way of example, a muffler 1 having a prior art housing 10 of the type initially mentioned.
  • the housing 10 comprises a first half-shell 12 and a second half-shell, not shown in the Figure, disposed thereover.
  • an inner pipe 14 which, in some applications, is surrounded by an insulating mat 16 and which is adapted for partial insertion into it of an exhaust gas carrying pipe.
  • the exhaust gas carrying pipe is connected to the housing 10 by means of an opening 18 which is arranged in the housing 10 in the region of an end face S.
  • the two half-shells have two lengthwise edge sections 20 that are connected to each other, e.g. by crimping or welding. This connection of the two half-shells is produced by a machine along the longitudinal edges of the two edge sections 20 .
  • the edge sections 20 have a substantially uniform width of about 8 to 10 mm over their entire length (in the case of a welded housing). Where seamed housings are involved, the edge section is made wider in most cases.
  • a drawback in the prior art housing 10 as described resides in that in the region of the opening 18 , the housing 10 has a distinctly greater stiffness in the horizontal direction (i.e. along the edge sections 20 ) than in the vertical direction (perpendicular to the plane of the edge sections 20 ). This results in an abrupt change in stiffness in this region, which leads to a limited fatigue strength upon exposure to bending stresses and, hence, to a reduced durability of the housing.
  • connection of the two half-shells along the longitudinal sides L of the housing 10 can only be produced by a machine without any difficulty up to a respective point P.
  • the two edges X on the end face, which are difficult to access when using a machine, of the edge sections 20 of the half-shells may have to be re-welded manually in order to close the housing 10 completely.
  • Such a production step is comparatively complicated and therefore expensive.
  • the object of the present invention is therefore to provide a housing for a component of an exhaust system in which any sudden changes in stiffness are avoided in the region of an opening that serves for fitting an exhaust pipe, and which, furthermore, is simple to produce.
  • a housing of the type initially mentioned that the edge sections run out at the opening and the width of the edge sections is reduced towards the opening.
  • the stiffness in the horizontal direction can be distinctly reduced and thus approximated to the stiffness in the vertical direction.
  • a manual re-welding process may in most cases be dispensed with.
  • the width of the edge sections in the region of the opening may amount to about half the regular width of the edge sections; advantageously, it amounts to about one third of the regular width.
  • the housing has at least one pipe fitted thereto, which is welded to the housing by means of a weld seam, the width of the edge sections in the region of the opening being, at a maximum, equal to the height of the weld seam.
  • a weld seam Such a configuration results not only in the improved fatigue strength already described above, but, moreover, an involved and expensive manual re-welding of the edges on the end face of the edge sections can also be dispensed with.
  • the half-shells are connected to each other on the end face of the housing exclusively by the weld seam which is required in any case for fitting the exhaust gas carrying pipe, as a result of which a complete closure of the housing is realized in a simple, cost-effective and time-saving manner.
  • the housing according to the invention is less susceptible to crack formation in the region of the weld seam.
  • a particularly favorable horizontal-to-vertical stiffness ratio which results in an optimum fatigue strength of the housing in the region of the opening, is obtained if the edge sections include an angle of approximately 30 degrees with the center axis of the pipe.
  • FIG. 1 shows a partial sectional view of a muffler having a housing according to the prior art
  • FIG. 2 shows a partial sectional view of a muffler having a housing according to a first embodiment of the invention
  • FIG. 3 shows a partial sectional view of a muffler having a housing with a pipe fitted to it, according to the first embodiment of the invention
  • FIG. 4 shows a second muffler housing according to the prior art
  • FIG. 5 shows a muffler housing according to a second embodiment of the invention.
  • FIG. 2 shows a housing 10 according to the invention, of a muffler 1 , the housing replacing the housing 10 according to the prior art as illustrated in FIG. 1 .
  • the edge sections 20 run out at the opening 18 and the width of the edge sections 20 is reduced towards the opening 18 .
  • the width of the edge sections 20 on the end face S is selected to amount to about half, or better, one third of the regular width of the edge sections, that is, approximately 2 to 4 mm.
  • a further advantage of the housing 10 according to the invention will become obvious if an exhaust gas carrying pipe 22 is fitted to the housing 10 and welded to the housing 10 by means of a weld seam 24 ( FIG. 3 ).
  • the weld seam 24 just like the opening 18 , has essentially the shape of the pipe cross-section. Owing to the reduced width of the edge sections 20 in the region of the opening 18 into which the pipe 22 is inserted, the whole of the end-face regions X of both edge sections 20 can be closed at the same time by means of the weld seam 24 , without the necessity of separately re-welding the housing 10 in the end-face region S thereof.
  • An optimum fatigue strength of the housing 10 can be obtained in that the edge sections 20 in the region of the opening 18 include an angle ⁇ of approximately 30 degrees with the center axis of the pipe 22 .
  • FIG. 5 shows a second embodiment of the housing 30 according to the invention, which provides two separate flow paths 32 and is made use of as a housing of a center muffler, for example.
  • the housing 30 also consists of a first half-shell (not shown) and a second half-shell 34 disposed thereover, the lengthwise edge sections 36 of which are connected to each other, as has already been described above with reference to FIGS. 1 to 3 .
  • FIG. 4 A comparison with a housing 30 of a center muffler according to the prior art, which is illustrated in FIG. 4 , will show that the edge sections 36 in the housing 30 according to the invention ( FIG. 5 ) again run out at the two openings 38 and that their width is reduced towards the openings 38 .
  • the angle which the edge sections 36 include with the center axis of a pipe adapted to be inserted into the respective opening 38 amounts to approximately 30 degrees. In this way, in the housing 30 as well, a markedly improved fatigue strength is achieved over the prior art.

Landscapes

  • 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 Silencers (AREA)
US11/576,993 2004-12-09 2005-12-07 Housing for a Component of an Exhaust System Abandoned US20080041659A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004059381.7 2004-12-09
DE102004059381A DE102004059381A1 (de) 2004-12-09 2004-12-09 Gehäuse für ein Bauteil einer Abgasanlage
PCT/EP2005/013125 WO2006061211A1 (de) 2004-12-09 2005-12-07 Gehäuse für ein bauteil einer abgasanlage

Publications (1)

Publication Number Publication Date
US20080041659A1 true US20080041659A1 (en) 2008-02-21

Family

ID=35998564

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/576,993 Abandoned US20080041659A1 (en) 2004-12-09 2005-12-07 Housing for a Component of an Exhaust System

Country Status (6)

Country Link
US (1) US20080041659A1 (de)
EP (1) EP1828557B1 (de)
KR (1) KR100865927B1 (de)
CN (1) CN100497896C (de)
DE (1) DE102004059381A1 (de)
WO (1) WO2006061211A1 (de)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132286A (en) * 1976-08-31 1979-01-02 Nihon Radiator Co., Ltd. Muffler
US4671381A (en) * 1986-02-20 1987-06-09 Rascov Anthony J Linear muffler shockwave suppressor
US4941545A (en) * 1989-04-28 1990-07-17 Arvin Industries, Inc. Muffler assembly
US5004069A (en) * 1990-01-26 1991-04-02 Ap Parts Manufacturing Company Stamp formed muffler with transverse baffle tube
US5055274A (en) * 1989-02-06 1991-10-08 Tennessee Gas Pipeline Company Catalytic converter and substrate support with one piece housing
US5173577A (en) * 1990-09-04 1992-12-22 Ap Parts Manufacturing Co. Stamp formed muffler with low back pressure
US5187334A (en) * 1990-07-02 1993-02-16 Tennessee Gas Pipeline Company Acoustic muffler with one-piece housing
US5252788A (en) * 1992-04-10 1993-10-12 Ap Parts Manufacturing Co. Stamp formed muffler with in-line expansion chamber and arcuately formed effective flow tubes
US5280142A (en) * 1991-10-18 1994-01-18 Ap Parts Manufacturing Company Heat shielded exhaust system component
US5332873A (en) * 1990-11-09 1994-07-26 Ab Volvo Motor vehicle muffler
US5859394A (en) * 1997-06-12 1999-01-12 Ap Parts Manufacturing Company Muffler with stamped internal plates defining tubes and separating chambers
US5905233A (en) * 1995-02-24 1999-05-18 Ab Volvo Noise suppressor for displacement compressors
US5949035A (en) * 1997-03-24 1999-09-07 Arvin Industries, Inc. Stamp-formed muffler having a unitary inner cartridge
US6164412A (en) * 1998-04-03 2000-12-26 Arvin Industries, Inc. Muffler

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH394713A (fr) * 1963-04-02 1965-06-30 Wolf Dieter Pot d'échappement pour moteurs à combustion interne
JPS636411Y2 (de) * 1980-03-05 1988-02-23
US4559205A (en) * 1983-02-28 1985-12-17 General Motors Corporation Catalytic converter substrate and retainer assembly
FR2617903B1 (fr) * 1987-07-08 1992-08-07 Rosi Sa Ets Pot d'echappement de gaz brules
IT1260127B (it) * 1992-03-31 1996-03-28 Renato Zara Procedimento per l'ottenimento di silenziatori per autoveicoli e silenziatori ottenuti con detto procedimento
MY121635A (en) * 1996-07-11 2006-02-28 Honda Motor Co Ltd Exhaust muffler
JP2000008845A (ja) * 1998-06-17 2000-01-11 Toyota Motor Corp 触媒コンバータ
FR2854649A1 (fr) * 2003-05-09 2004-11-12 Jean Claude Peru Echappement de vehicule automobile standardise a duree de vie illimitee

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132286A (en) * 1976-08-31 1979-01-02 Nihon Radiator Co., Ltd. Muffler
US4671381A (en) * 1986-02-20 1987-06-09 Rascov Anthony J Linear muffler shockwave suppressor
US5055274A (en) * 1989-02-06 1991-10-08 Tennessee Gas Pipeline Company Catalytic converter and substrate support with one piece housing
US4941545A (en) * 1989-04-28 1990-07-17 Arvin Industries, Inc. Muffler assembly
US5004069A (en) * 1990-01-26 1991-04-02 Ap Parts Manufacturing Company Stamp formed muffler with transverse baffle tube
US5187334A (en) * 1990-07-02 1993-02-16 Tennessee Gas Pipeline Company Acoustic muffler with one-piece housing
US5173577A (en) * 1990-09-04 1992-12-22 Ap Parts Manufacturing Co. Stamp formed muffler with low back pressure
US5332873A (en) * 1990-11-09 1994-07-26 Ab Volvo Motor vehicle muffler
US5280142A (en) * 1991-10-18 1994-01-18 Ap Parts Manufacturing Company Heat shielded exhaust system component
US5252788A (en) * 1992-04-10 1993-10-12 Ap Parts Manufacturing Co. Stamp formed muffler with in-line expansion chamber and arcuately formed effective flow tubes
US5905233A (en) * 1995-02-24 1999-05-18 Ab Volvo Noise suppressor for displacement compressors
US5949035A (en) * 1997-03-24 1999-09-07 Arvin Industries, Inc. Stamp-formed muffler having a unitary inner cartridge
US5859394A (en) * 1997-06-12 1999-01-12 Ap Parts Manufacturing Company Muffler with stamped internal plates defining tubes and separating chambers
US6164412A (en) * 1998-04-03 2000-12-26 Arvin Industries, Inc. Muffler

Also Published As

Publication number Publication date
EP1828557B1 (de) 2012-06-13
EP1828557A1 (de) 2007-09-05
CN100497896C (zh) 2009-06-10
DE102004059381A1 (de) 2006-06-22
WO2006061211A1 (de) 2006-06-15
CN101072931A (zh) 2007-11-14
KR100865927B1 (ko) 2008-10-30
KR20070088564A (ko) 2007-08-29

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Date Code Title Description
AS Assignment

Owner name: ARVINMERITOR EMISSIONS TECHNOLOGIES GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STAMMEL, REINHOLD;REEL/FRAME:019205/0697

Effective date: 20070228

AS Assignment

Owner name: EMCON TECHNOLOGIES GERMANY (AUGSBURG) GMBH, GERMAN

Free format text: CHANGE OF NAME;ASSIGNOR:ARVINMERITOR EMISSIONS TECHNOLOGIES GMBH;REEL/FRAME:022117/0073

Effective date: 20070730

Owner name: EMCON TECHNOLOGIES GERMANY (AUGSBURG) GMBH,GERMANY

Free format text: CHANGE OF NAME;ASSIGNOR:ARVINMERITOR EMISSIONS TECHNOLOGIES GMBH;REEL/FRAME:022117/0073

Effective date: 20070730

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION