FR2663985A1 - Silencieux a logement en une piece pour vehicule automobile, conduit faisant partie du silencieux et procede de sa fabrication. - Google Patents

Silencieux a logement en une piece pour vehicule automobile, conduit faisant partie du silencieux et procede de sa fabrication. Download PDF

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Publication number
FR2663985A1
FR2663985A1 FR9108098A FR9108098A FR2663985A1 FR 2663985 A1 FR2663985 A1 FR 2663985A1 FR 9108098 A FR9108098 A FR 9108098A FR 9108098 A FR9108098 A FR 9108098A FR 2663985 A1 FR2663985 A1 FR 2663985A1
Authority
FR
France
Prior art keywords
tube
outlet
envelope
inlet
gases
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.)
Granted
Application number
FR9108098A
Other languages
English (en)
French (fr)
Other versions
FR2663985B1 (US20030199744A1-20031023-C00003.png
Inventor
Abbott James Robert
Snider Benny Joe
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.)
Tennessee Gas Pipeline Co LLC
Original Assignee
Tennessee Gas Pipeline Co LLC
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 Tennessee Gas Pipeline Co LLC filed Critical Tennessee Gas Pipeline Co LLC
Publication of FR2663985A1 publication Critical patent/FR2663985A1/fr
Application granted granted Critical
Publication of FR2663985B1 publication Critical patent/FR2663985B1/fr
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/02Silencing apparatus characterised by method of silencing by using resonance
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00Silencing apparatus characterised by method of silencing
    • F01N1/08Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/084Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust 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
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838Construction 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
    • F01N13/1844Mechanical joints
    • F01N13/185Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/20Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00Structure or shape of gas passages, pipes or tubes
    • F01N2470/02Tubes being perforated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00Structure or shape of gas passages, pipes or tubes
    • F01N2470/06Tubes being formed by assembly of stamped or otherwise deformed sheet-metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00Structure or shape of gas passages, pipes or tubes
    • F01N2470/10Tubes having non-circular cross section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00Structure or shape of gas passages, pipes or tubes
    • F01N2470/12Tubes being corrugated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00Structure or shape of gas passages, pipes or tubes
    • F01N2470/14Plurality of outlet tubes, e.g. in parallel or with different length
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2490/00Structure, disposition or shape of gas-chambers
    • F01N2490/15Plurality of resonance or dead chambers
    • F01N2490/155Plurality of resonance or dead chambers being disposed one after the other in flow direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2530/00Selection of materials for tubes, chambers or housings
    • F01N2530/02Corrosion resistive metals
    • F01N2530/04Steel alloys, e.g. stainless steel
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/4935Heat exchanger or boiler making
    • Y10T29/49391Tube making or reforming
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49398Muffler, manifold or exhaust pipe making
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining
    • Y10T29/49908Joining by deforming
    • Y10T29/49909Securing cup or tube between axially extending concentric annuli

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
FR9108098A 1990-07-02 1991-06-28 Silencieux a logement en une piece pour vehicule automobile, conduit faisant partie du silencieux et procede de sa fabrication. Granted FR2663985A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/546,919 US5216809A (en) 1990-07-02 1990-07-02 Acoustic muffler with one-piece housing

Publications (2)

Publication Number Publication Date
FR2663985A1 true FR2663985A1 (fr) 1992-01-03
FR2663985B1 FR2663985B1 (US20030199744A1-20031023-C00003.png) 1995-02-17

Family

ID=24182567

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9108098A Granted FR2663985A1 (fr) 1990-07-02 1991-06-28 Silencieux a logement en une piece pour vehicule automobile, conduit faisant partie du silencieux et procede de sa fabrication.

Country Status (9)

Country Link
US (1) US5216809A (US20030199744A1-20031023-C00003.png)
JP (1) JPH05150788A (US20030199744A1-20031023-C00003.png)
AU (2) AU650457B2 (US20030199744A1-20031023-C00003.png)
BR (1) BR9102765A (US20030199744A1-20031023-C00003.png)
CA (1) CA2047121C (US20030199744A1-20031023-C00003.png)
DE (1) DE4121525A1 (US20030199744A1-20031023-C00003.png)
FR (1) FR2663985A1 (US20030199744A1-20031023-C00003.png)
GB (1) GB2245654B (US20030199744A1-20031023-C00003.png)
MX (1) MX9100044A (US20030199744A1-20031023-C00003.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11208927B2 (en) 2017-01-27 2021-12-28 Cummins Emission Solutions Inc. Systems and methods for controlling flow distribution in an aftertreatment system

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2679857B2 (ja) * 1989-02-06 1997-11-19 テネコ・オートモーティブ・インコーポレーテッド 一体型ハウジングを有する触媒転化器
JP3585064B2 (ja) * 1995-10-12 2004-11-04 トヨタ自動車株式会社 モノリス触媒コンバータ及びその製造方法
US5949035A (en) * 1997-03-24 1999-09-07 Arvin Industries, Inc. Stamp-formed muffler having a unitary inner cartridge
WO1999039087A1 (en) 1998-01-30 1999-08-05 Arvin Industries, Inc. Stamped-formed muffler apparatus and assembly process
US6164412A (en) * 1998-04-03 2000-12-26 Arvin Industries, Inc. Muffler
US6568370B1 (en) * 2001-11-02 2003-05-27 Visteon Global Technologies, Inc. Fuel pressure damper
US6463911B1 (en) * 2002-01-14 2002-10-15 Visteon Global Technologies, Inc. Fuel pressure damper
US7169365B2 (en) * 2002-03-26 2007-01-30 Evolution Industries, Inc. Automotive exhaust component and method of manufacture
US7323145B2 (en) * 2002-03-26 2008-01-29 Evolution Industries, Inc. Automotive exhaust component and method of manufacture
US7713493B2 (en) * 2003-02-28 2010-05-11 Fleetguard, Inc. Compact combination exhaust muffler and aftertreatment element and water trap assembly
US7685714B2 (en) 2003-03-18 2010-03-30 Tursky John M Automotive exhaust component and process of manufacture
US7165535B2 (en) * 2004-05-27 2007-01-23 Delphi Technologies, Inc. Fuel rail pulse damper with improved end crimp
WO2007078411A2 (en) * 2005-12-22 2007-07-12 Fleetguard, Inc. Compact combination exhaust muffler and aftertreatment element and water trap assembly
JP4759705B2 (ja) * 2006-07-27 2011-08-31 サクラ工業株式会社 異径管路部品の製造方法
US7743763B2 (en) * 2007-07-27 2010-06-29 The Boeing Company Structurally isolated thermal interface
US20090266644A1 (en) * 2008-04-23 2009-10-29 Price Kenneth E Catalytic converter muffler
US8230595B1 (en) * 2008-07-24 2012-07-31 Cummins Filtration Ip, Inc. Muffler tubes and methods of forming muffler tubes
JP5745785B2 (ja) * 2010-06-18 2015-07-08 坂本工業株式会社 筒型成形品の成形方法および装置
US20120285662A1 (en) * 2011-05-10 2012-11-15 Celsia Technologies Taiwan, I Vapor chamber with improved sealed opening
USD780652S1 (en) * 2015-06-08 2017-03-07 K&N Engineering, Inc. X-flowpath muffler
CN108000074A (zh) * 2017-12-29 2018-05-08 湖南长丰汽车零部件有限责任公司 一种低噪声低振动排气消声器壳体制作工艺
CN109433880B (zh) * 2018-11-02 2020-04-21 宁波市晶隆电子商务有限公司 冰箱蒸发器用铝管压扁加工装置
USD948401S1 (en) * 2019-05-23 2022-04-12 James Stewart Muffler

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953264A (en) * 1928-02-06 1934-04-03 Carl F Rauen Muffler for internal combustion engines and the like
US3220507A (en) * 1964-01-13 1965-11-30 Walker Mfg Co Three-piece tri-flow muffler
US3498406A (en) * 1967-09-26 1970-03-03 Walker Mfg Co Triflow muffler for exhaust gases
US3590946A (en) * 1969-12-03 1971-07-06 Mini Fold Scooter Co Inc Exhaust system
US3648803A (en) * 1969-10-13 1972-03-14 Walker Mfg Co Exhaust system
JPS5681214A (en) * 1979-12-03 1981-07-03 Nippon Radiator Co Ltd Muffler
US4342373A (en) * 1981-03-17 1982-08-03 Tenneco Inc. Muffler with three part welded joint
US4941545A (en) * 1989-04-28 1990-07-17 Arvin Industries, Inc. Muffler assembly
EP0389401A1 (en) * 1989-03-22 1990-09-26 José Maria Samarra Gracia Silencer for automobile exhaust systems

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1433890A (en) * 1920-04-29 1922-10-31 Nat Acme Co Feed collet and method of making the same
GB310171A (en) * 1928-04-04 1929-04-25 Sydney Harvey Improvements in and relating to sheet metal pipes and to methods of producing same
US2005306A (en) * 1934-06-21 1935-06-18 Nat Tube Co Method of making tubes
GB888853A (en) * 1958-12-30 1962-02-07 Edward Henry Phillips Exhaust silencer
US3209438A (en) * 1960-10-28 1965-10-05 Walker Mfg Co Muffler manufacturing method
US3315761A (en) * 1962-06-13 1967-04-25 Oldberg Mfg Company Muffler with spaced concentric tubular members
US3289785A (en) * 1965-10-04 1966-12-06 Walker Mfg Co Silencer with outer housing contacting inner conduit to define resonance chambers
GB1315339A (en) * 1970-11-10 1973-05-02 Harmo Ind Ltd Silencer for motor road vehicles
DE2260021A1 (de) * 1972-12-07 1974-06-12 Oesterr Doka Schalung Verfahren zur herstellung von anschlussbereichen an stab- insbesondere rohrfoermigen profilen, sowie nach dem verfahren hergestellter anschlussbereich
US3841431A (en) * 1973-05-02 1974-10-15 Caterpillar Tractor Co Instrument panel guard
FR2335696A1 (fr) * 1975-12-18 1977-07-15 Peugeot Cycles Silencieux d'echappement, notamment pour vehicule a moteur thermique
US4335078A (en) * 1977-09-13 1982-06-15 Nissan Motor Company, Limited Catalytic reactor for automotive exhaust line
US4345373A (en) * 1978-10-13 1982-08-24 International Telephone And Telegraph Corporation Method of manufacture of low-cost, high quality low insertion force electrical connector socket
US4239733A (en) * 1979-04-16 1980-12-16 General Motors Corporation Catalytic converter having a monolith with support and seal means therefor
US4269807A (en) * 1979-10-22 1981-05-26 Uop Inc. Catalytic converter mounting arrangement for reducing bypass leakage
DE3139186A1 (de) * 1981-10-02 1983-04-21 Volkswagenwerk Ag, 3180 Wolfsburg Schalldaempfer fuer ein gasfoermiges medium, insbesondere abgas-vorschalldaempfer
US4486932A (en) * 1982-08-06 1984-12-11 Apx Group, Inc. Process for making a replacement muffler
US4559205A (en) * 1983-02-28 1985-12-17 General Motors Corporation Catalytic converter substrate and retainer assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953264A (en) * 1928-02-06 1934-04-03 Carl F Rauen Muffler for internal combustion engines and the like
US3220507A (en) * 1964-01-13 1965-11-30 Walker Mfg Co Three-piece tri-flow muffler
US3498406A (en) * 1967-09-26 1970-03-03 Walker Mfg Co Triflow muffler for exhaust gases
US3648803A (en) * 1969-10-13 1972-03-14 Walker Mfg Co Exhaust system
US3590946A (en) * 1969-12-03 1971-07-06 Mini Fold Scooter Co Inc Exhaust system
JPS5681214A (en) * 1979-12-03 1981-07-03 Nippon Radiator Co Ltd Muffler
US4342373A (en) * 1981-03-17 1982-08-03 Tenneco Inc. Muffler with three part welded joint
EP0389401A1 (en) * 1989-03-22 1990-09-26 José Maria Samarra Gracia Silencer for automobile exhaust systems
US4941545A (en) * 1989-04-28 1990-07-17 Arvin Industries, Inc. Muffler assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 151 (M-089)24 Septembre 1981 & JP-A-56 081 214 ( NIPPON RADIATOR ) 3 Juillet 1981 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11208927B2 (en) 2017-01-27 2021-12-28 Cummins Emission Solutions Inc. Systems and methods for controlling flow distribution in an aftertreatment system

Also Published As

Publication number Publication date
AU7939791A (en) 1992-01-02
CA2047121C (en) 1995-02-07
GB2245654B (en) 1994-04-20
FR2663985B1 (US20030199744A1-20031023-C00003.png) 1995-02-17
JPH05150788A (ja) 1993-06-18
MX9100044A (es) 1992-02-28
AU654923B2 (en) 1994-11-24
GB9112588D0 (en) 1991-07-31
AU5220293A (en) 1994-02-10
AU650457B2 (en) 1994-06-23
GB2245654A (en) 1992-01-08
CA2047121A1 (en) 1992-01-03
US5216809A (en) 1993-06-08
DE4121525A1 (de) 1992-01-09
BR9102765A (pt) 1992-02-04

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