FR2444159A1 - EXHAUST GAS LINE FOR AN INTERNAL COMBUSTION ENGINE - Google Patents

EXHAUST GAS LINE FOR AN INTERNAL COMBUSTION ENGINE

Info

Publication number
FR2444159A1
FR2444159A1 FR7929296A FR7929296A FR2444159A1 FR 2444159 A1 FR2444159 A1 FR 2444159A1 FR 7929296 A FR7929296 A FR 7929296A FR 7929296 A FR7929296 A FR 7929296A FR 2444159 A1 FR2444159 A1 FR 2444159A1
Authority
FR
France
Prior art keywords
internal combustion
combustion engine
exhaust gas
gas line
tube
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.)
Withdrawn
Application number
FR7929296A
Other languages
French (fr)
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.)
Audi AG
Original Assignee
Audi NSU Auto Union AG
Audi AG
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 Audi NSU Auto Union AG, Audi AG filed Critical Audi NSU Auto Union AG
Publication of FR2444159A1 publication Critical patent/FR2444159A1/en
Withdrawn legal-status Critical Current

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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/12—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally or helically shaped channels
    • 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
    • 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
    • F01N13/08—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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/12—Tubes being corrugated
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction

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)
  • Exhaust Gas After Treatment (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

La présente invention concerne une conduite de gaz d'échappement pour un moteur à combustion interne. Cette conduite est formée d'un tube 3 thermiquement isolé présentant une couche catalytique 4 sur sa face interne. Le tube 3 a une paroi interne 4 enroulée en spirale avec un pas S' qui est égal à 0,2-10 fois le diamètre d de la section de passage libre du tube 3. La conduite 1 est reliée à un moteur à combustion interne 6 et communique avec le canal d'échappement 7 de ce dernier. L'invention s'applique aux moteurs à combustion interne des véhicules.The present invention relates to an exhaust gas line for an internal combustion engine. This pipe is formed of a thermally insulated tube 3 having a catalytic layer 4 on its internal face. Tube 3 has an internal wall 4 wound in a spiral with a pitch S 'which is equal to 0.2-10 times the diameter d of the free passage section of tube 3. Line 1 is connected to an internal combustion engine. 6 and communicates with the exhaust channel 7 of the latter. The invention applies to internal combustion engines of vehicles.

FR7929296A 1978-12-14 1979-11-28 EXHAUST GAS LINE FOR AN INTERNAL COMBUSTION ENGINE Withdrawn FR2444159A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782853912 DE2853912A1 (en) 1978-12-14 1978-12-14 EXHAUST PIPE FOR AN INTERNAL COMBUSTION ENGINE

Publications (1)

Publication Number Publication Date
FR2444159A1 true FR2444159A1 (en) 1980-07-11

Family

ID=6057107

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7929296A Withdrawn FR2444159A1 (en) 1978-12-14 1979-11-28 EXHAUST GAS LINE FOR AN INTERNAL COMBUSTION ENGINE

Country Status (5)

Country Link
JP (1) JPS5584811A (en)
DE (1) DE2853912A1 (en)
FR (1) FR2444159A1 (en)
GB (1) GB2037369A (en)
SE (1) SE7909982L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401195A2 (en) * 1989-06-01 1990-12-05 Franz Dipl.Ing.Dr. Laimböck Exhaust system, particularly for two-cycle internal combustion engines
EP0556129A1 (en) * 1992-02-14 1993-08-18 Institut Francais Du Petrole Exhaust duct with a catalytic wall, for internal combustion engines

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857051B1 (en) * 2003-07-04 2007-05-04 Hutchinson EXHAUST SYSTEM OF A MOTOR VEHICLE COMPRISING A CATALYST DEVICE AND / OR A PARTICULATE FILTER.
JP4898851B2 (en) * 2009-01-23 2012-03-21 株式会社竹内製作所 Exhaust gas purification device
DE102011088041A1 (en) * 2011-12-08 2013-06-13 Witzenmann Gmbh Flexible duct element for use in exhaust system of diesel engine of motor car, has flexible hollow body for conveying effluent stream, where parts of element are comprised of and/or partially coated with catalytic active material
CN105569879B (en) * 2016-02-18 2018-05-29 力帆实业(集团)股份有限公司 A kind of motorcycle air inlet system and exhaust system
DE102021205653A1 (en) 2021-06-02 2022-12-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein exhaust aftertreatment device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017255A (en) * 1959-07-02 1962-01-16 Norris William Arthur Oxidizer
US3492098A (en) * 1965-12-01 1970-01-27 Universal Oil Prod Co Multiple section catalyst unit
FR2187011A6 (en) * 1972-05-29 1974-01-11 Equipinox
DE2436559A1 (en) * 1974-07-30 1976-02-19 Bosch Gmbh Robert Exhaust gas purifier - with catalytic coating on spiral fins inside heat-insulated exhaust gas manifold
DE2540882A1 (en) * 1975-09-13 1977-03-24 Audi Nsu Auto Union Ag Catalytic exhaust decontamination lining for vehicles - has catalytic adsorber for noxious fumes in alumina and platinum matrix
FR2330858A1 (en) * 1975-11-04 1977-06-03 Bremshey Ag CATALYTIC EXHAUST SYSTEM

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017255A (en) * 1959-07-02 1962-01-16 Norris William Arthur Oxidizer
US3492098A (en) * 1965-12-01 1970-01-27 Universal Oil Prod Co Multiple section catalyst unit
FR2187011A6 (en) * 1972-05-29 1974-01-11 Equipinox
DE2436559A1 (en) * 1974-07-30 1976-02-19 Bosch Gmbh Robert Exhaust gas purifier - with catalytic coating on spiral fins inside heat-insulated exhaust gas manifold
DE2540882A1 (en) * 1975-09-13 1977-03-24 Audi Nsu Auto Union Ag Catalytic exhaust decontamination lining for vehicles - has catalytic adsorber for noxious fumes in alumina and platinum matrix
FR2330858A1 (en) * 1975-11-04 1977-06-03 Bremshey Ag CATALYTIC EXHAUST SYSTEM

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0401195A2 (en) * 1989-06-01 1990-12-05 Franz Dipl.Ing.Dr. Laimböck Exhaust system, particularly for two-cycle internal combustion engines
EP0401195A3 (en) * 1989-06-01 1991-03-06 Franz Dipl.Ing.Dr. Laimböck Exhaust system, particularly for two-cycle internal combustion engines
EP0556129A1 (en) * 1992-02-14 1993-08-18 Institut Francais Du Petrole Exhaust duct with a catalytic wall, for internal combustion engines
FR2687431A1 (en) * 1992-02-14 1993-08-20 Inst Francais Du Petrole EXHAUST TUBE WITH CATALYTIC WALL FOR INTERNAL COMBUSTION ENGINES.

Also Published As

Publication number Publication date
DE2853912A1 (en) 1980-07-03
JPS5584811A (en) 1980-06-26
SE7909982L (en) 1980-06-15
GB2037369A (en) 1980-07-09

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Legal Events

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