EP0706608B1 - Auspuffrohr für katalytische auspuffvorrichtung - Google Patents

Auspuffrohr für katalytische auspuffvorrichtung Download PDF

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Publication number
EP0706608B1
EP0706608B1 EP95918048A EP95918048A EP0706608B1 EP 0706608 B1 EP0706608 B1 EP 0706608B1 EP 95918048 A EP95918048 A EP 95918048A EP 95918048 A EP95918048 A EP 95918048A EP 0706608 B1 EP0706608 B1 EP 0706608B1
Authority
EP
European Patent Office
Prior art keywords
tube
piping according
external
piping
internal
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 - Lifetime
Application number
EP95918048A
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English (en)
French (fr)
Other versions
EP0706608A1 (de
Inventor
Maurice Canevet
Michel Fouquembergh
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.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Publication of EP0706608A1 publication Critical patent/EP0706608A1/de
Application granted granted Critical
Publication of EP0706608B1 publication Critical patent/EP0706608B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F01N13/14—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
    • 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
    • F01N13/141—Double-walled exhaust pipes or housings
    • 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
    • F01N13/16—Selection of particular 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like

Definitions

  • Figure 4 shows another embodiment individual elements of said tube, mounted in said exhaust manifold.
  • the material 12 is of the fibrous type.
  • the space annular 9 contains windings in the form of rings 12A, long fibers (continuous wicks) thus providing a acceptable radial stiffness to avoid deformation of the inner tube 10.
  • these fiber rings 12A are regularly spaced from each other along the outer wall 10A of the inner tube 10, providing identical intervals between them. They also present a substantially trapezoidal section so that the large base of each of them is properly attached to the wall 10A of the internal tube by means of an adhesive, such as high temperature ceramic glue.
  • rings 17 On the small bases of said rings, corresponding to the winding of the last row of turns of said fibers, are added rings 17 which are preferably split for facilitate their installation, said split rings 17 being there also fixed by a high temperature glue on the corresponding small bases of said rings.

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)

Claims (12)

  1. Auspuffrohr für eine katalytische Auspuffvorrichtung mit einem Abgassammler (2) und einem Katalysator (5), wobei sich das Auspuffrohr (4) zwischen dem Sammler und dem Katalysator befindet und ein Verbundrohr (8) hat, das aus einem Innenrohr und einem Außenrohr besteht, die zwischen sich einen annähernd ringförmigen Raum bilden,
    dadurch gekennzeichnet, daß sich das Verbundrohr (8) innerhalb des Auspuffrohrs (4) befindet, das Außenrohr in etwa mit dem Auspuffrohr in Kontakt gelangt, und dadurch, daß das Innenrohr (10) und das Außenrohr (11) dünne Wände (10A, 11A) haben, deren Dicke unter 0,3 Millimetern liegt.
  2. Auspuffrohr nach Anspruch 1,
    dadurch gekennzeichnet, daß sich die Wanddicke des Innenrohrs (10) und des Außenrohrs (11) auf 0,15 bis 0,20 Millimeter beläuft.
  3. Auspuffrohr nach einem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet, daß das Innenrohr (10) und das Außenrohr (11) aus rostfreiem Stahl hergestellt sind.
  4. Auspuffrohr nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß im Ringraum (9) zwischen dem Außenrohr (11) und dem Innenrohr (10) ein Material mit niedriger Wärmekapazität und Dichte (12) angeordnet ist, das partikel- oder faserförmig ist.
  5. Auspuffrohr nach Anspruch 4,
    dadurch gekennzeichnet, daß sich die Wärmekapazität des Materials auf 0,25 kcal/kg beläuft und seine Dichte höchstens gleich 0,3 ist.
  6. Auspuffrohr nach einem der Ansprüche 4 oder 5,
    dadurch gekennzeichnet, daß an den Enden des Innenrohrs (10) und des Außenrohrs (11) Ringe (15, 16) vorgesehen sind, die den Ringraum (9) zur Blockierung des Materials (12) abschließen.
  7. Auspuffrohr nach Anspruch 6,
    dadurch gekennzeichnet, daß in jedem Ende der Rohre (10, 11) ein elastischer Isolierring (15), der in diesem Raum angebracht ist und mit dem Material mit geringer Wärmekapazität und Dichte (12) in Kontakt gelangt, und ein starrer hitzebeständiger Ring (16), der in diesem Raum angebracht ist und mit dem elastischen Isolierring (15) in Kontakt gelangt, angeordnet sind.
  8. Auspuffrohr nach einem der Ansprüche 4 oder 5,
    dadurch gekennzeichnet, daß Faserwicklungen aus dem Material (12) außen am Innenrohr (10) in freien Abständen zueinander befestigt sind, wobei das Außenrohr in etwa mit den Faserwicklungen des Materials in Kontakt gelangt.
  9. Auspuffrohr nach Anspruch 8,
    dadurch gekennzeichnet, daß die Wicklungen aus einer Vielzahl von Faserringen (12A) bestehen, die starr in regelmäßigen Abständen das Innenrohr umgeben und einen trapezförmigen oder ähnlichen Querschnitt haben, wobei Ringe (17) auf die Faserringe um diese herum aufgesetzt sind, die in das Außenrohr (11) eingreifen, von denen zumindest einer am Außenrohr befestigt ist.
  10. Auspuffrohr nach einem der Ansprüche 1 bis 9,
    dadurch gekennzeichnet, daß dieses aus einer Vielzahl von Einzelemementen (14) besteht, die miteinander verbunden werden können.
  11. Auspuffrohr nach Anspruch 10,
    dadurch gekennzeichnet, daß jedes Einzelelement (14) ein dünnwandiges Außenrohr (11) und Innenrohr (10) und zwischen den Rohren ein Material mit geringer Wärmekapazität und Dichte (12) hat.
  12. Auspuffrohr nach Anspruch 11,
    dadurch gekennzeichnet, daß, wenn zwei Einzelelemente miteinander verbunden sind, die entsprechenden Enden (10B, 10C) der Innenrohre ineinander gesteckt sind, während die entsprechenden Enden (11B, 11C) der Außenrohre aneinanderstoßen.
EP95918048A 1994-04-27 1995-04-24 Auspuffrohr für katalytische auspuffvorrichtung Expired - Lifetime EP0706608B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9405079 1994-04-27
FR9405079A FR2719338B1 (fr) 1994-04-27 1994-04-27 Tubulure d'échappement pour dispositif d'échappement à catalyse, et tube composite destiné à équiper ladite tubulure.
PCT/FR1995/000534 WO1995029327A1 (fr) 1994-04-27 1995-04-24 Tubulure d'echappement pour dispositif d'echappement a catalyse

Publications (2)

Publication Number Publication Date
EP0706608A1 EP0706608A1 (de) 1996-04-17
EP0706608B1 true EP0706608B1 (de) 1998-12-02

Family

ID=9462561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95918048A Expired - Lifetime EP0706608B1 (de) 1994-04-27 1995-04-24 Auspuffrohr für katalytische auspuffvorrichtung

Country Status (8)

Country Link
US (1) US5697215A (de)
EP (1) EP0706608B1 (de)
JP (1) JPH09504072A (de)
CA (1) CA2163623A1 (de)
DE (1) DE69506359T2 (de)
ES (1) ES2126894T3 (de)
FR (1) FR2719338B1 (de)
WO (1) WO1995029327A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247552B1 (en) * 1994-12-16 2001-06-19 J. Eberspächer Gmbh & Co. Air gap-insulated exhaust manifold
JPH1181999A (ja) * 1997-09-12 1999-03-26 Honda Motor Co Ltd 内燃機関の排気浄化装置
DE10106590A1 (de) * 2001-02-13 2002-08-14 Gillet Heinrich Gmbh Schalldämpfer
EP1464800A1 (de) * 2003-04-02 2004-10-06 3M Innovative Properties Company Abgassystemkomponente mit isolierter doppelter Wandung
DE10334307B4 (de) * 2003-07-28 2008-06-26 Benteler Automobiltechnik Gmbh Isolierte Abgasleitung
FR2869950B1 (fr) * 2004-05-05 2007-12-14 Faurecia Sys Echappement Conduit de circulation des gaz d'echappement d'un vehicule automobile, et ligne d'echappement associee
FR2894316B1 (fr) * 2005-12-05 2011-04-15 Commissariat Energie Atomique Element de conduite de transport de gaz chauds et procede de realisation d'un tel element
US8356639B2 (en) 2006-06-15 2013-01-22 3M Innovative Properties Company Insulated double-walled exhaust system component and method of making the same
CN101473118B (zh) * 2006-06-15 2013-05-29 3M创新有限公司 绝缘双壁排气系统部件及其制造方法
US20080041043A1 (en) * 2006-08-16 2008-02-21 Andersen Eric H Exhaust treatment devices and methods for reducing sound using the exhaust treatment devices
US20080169038A1 (en) * 2007-01-11 2008-07-17 Timothy David Sellis Thermal shield and methods of construction and installation
JP5079630B2 (ja) * 2008-08-08 2012-11-21 株式会社小松製作所 排気ガス浄化装置
US20140140897A1 (en) * 2012-11-20 2014-05-22 Tenneco Automotive Operating Company Inc. Loose-Fill Insulation Exhaust Gas Treatment Device and Methods of Manufacturing
US9790836B2 (en) 2012-11-20 2017-10-17 Tenneco Automotive Operating Company, Inc. Loose-fill insulation exhaust gas treatment device and methods of manufacturing
US11319847B2 (en) * 2018-09-19 2022-05-03 Tenneco Automotive Operating Company Inc. Exhaust device with noise suppression system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209856A (en) * 1963-06-25 1965-10-05 Walker Mfg Co Exhaust system
US3850453A (en) * 1972-10-04 1974-11-26 Questor Corp Method and apparatus for connecting insulating conduits
NL168584C (nl) * 1975-04-22 1982-04-16 Honda Motor Co Ltd Verbrandingsmotor.
JPS51126411A (en) * 1975-04-25 1976-11-04 Nissan Motor Co Ltd Reactor
US4345430A (en) * 1979-11-15 1982-08-24 Manville Service Corporation Automotive catalytic converter exhaust system
WO1988003602A1 (en) * 1986-11-14 1988-05-19 Á4Gm Energetikai Gépgyártó Leányvállalat Layer-type heat barrier
DE3720714A1 (de) * 1987-06-23 1989-01-05 Gruenzweig & Hartmann Montage Waermedaemmsystem fuer heisse gase fuehrende eingegossene bauteile von brennkraftmaschinen
AU6152490A (en) * 1989-07-31 1991-03-11 Manville Corporation Insulated exhaust pipe and method and means for producing and connecting same
US5331810A (en) * 1992-05-21 1994-07-26 Arvin Industries, Inc. Low thermal capacitance exhaust system for an internal combustion engine

Also Published As

Publication number Publication date
EP0706608A1 (de) 1996-04-17
US5697215A (en) 1997-12-16
DE69506359D1 (de) 1999-01-14
FR2719338B1 (fr) 1996-06-28
JPH09504072A (ja) 1997-04-22
FR2719338A1 (fr) 1995-11-03
ES2126894T3 (es) 1999-04-01
CA2163623A1 (fr) 1995-11-02
DE69506359T2 (de) 1999-04-29
WO1995029327A1 (fr) 1995-11-02

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