EP2411641A1 - Kraftfahrzeugauslasssystem - Google Patents

Kraftfahrzeugauslasssystem

Info

Publication number
EP2411641A1
EP2411641A1 EP10709915A EP10709915A EP2411641A1 EP 2411641 A1 EP2411641 A1 EP 2411641A1 EP 10709915 A EP10709915 A EP 10709915A EP 10709915 A EP10709915 A EP 10709915A EP 2411641 A1 EP2411641 A1 EP 2411641A1
Authority
EP
European Patent Office
Prior art keywords
outlet
exchanger
exhaust
transverse
fixing
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
EP10709915A
Other languages
English (en)
French (fr)
Other versions
EP2411641B1 (de
Inventor
Etienne De Malet
Pascal Hottebart
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.)
Renault SAS
Original Assignee
Renault 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 Renault SAS filed Critical Renault SAS
Publication of EP2411641A1 publication Critical patent/EP2411641A1/de
Application granted granted Critical
Publication of EP2411641B1 publication Critical patent/EP2411641B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/51—EGR valves combined with other devices, e.g. with intake valves or compressors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/16—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system with EGR valves located at or near the connection to the exhaust system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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
    • F01N2470/14—Plurality of outlet tubes, e.g. in parallel or with different length
    • 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
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor

Definitions

  • the invention relates to a motor vehicle exhaust system.
  • the invention more particularly relates to a motor vehicle exhaust system comprising at least one depollution device, in particular a catalyst or a particulate filter, comprising a first output connected to an exhaust line of an associated vehicle and a second outlet for withdrawing exhaust gases for recycling, said second outlet being connected to an inlet duct of an exhaust gas cooling exchanger having an outlet duct connected to a housing receiving a valve exhaust gas control.
  • depollution device in particular a catalyst or a particulate filter
  • the housing receiving the exhaust gas control valve is generally attached to the engine block of the vehicle which is equipped by means of at least one stand and is connected to the outlet pipe of the exchanger cooling via a flexible conduit.
  • This design is relatively fragile because the vibrations to which the casing of the control valve is subjected and the high temperature induced by the proximity of the depollution device can lead to a degradation of the flexible duct, thus causing leaks detrimental to the proper functioning of the control valve. engine to the vehicle,
  • this design involves a relatively complex assembly, since it is necessary to first mount the exchanger on the pollution control member, then the housing of the control valve on the engine block, and finally to connect them by the flexible conduit.
  • the invention overcomes this disadvantage by proposing a simplified assembly in which the housing of the regulating valve is fixed directly to the heat exchanger body.
  • the invention proposes an exhaust circuit of the type described above, characterized in that the casing of the regulating valve comprises a soleplate intended to be fixed to an end plate of the outlet duct of the exchanger. and in that said housing is attached directly to a body of the exchanger.
  • the depollution member comprises a body of substantially axial orientation, a first end of which comprises an exhaust gas inlet duct, at least one side wall of which has the first transversally oriented outlet, and a second end of which comprises the second axial orientation outlet and at least one transverse fixing wall intended to receive the body of the exchanger, the body of the exchanger is substantially parallelepipedic, extends in the transverse direction, and comprises:
  • ⁇ a rear face from which protrudes the inlet duct, which is curved so as to extend below the lower horizontal face, and one end has a mating flange
  • a first transverse fixing face on the transverse wall for fixing the body of the depollution member comprising at least a first fixing lug on the transverse wall for fixing the body of the depollution device, ⁇ a second opposite transverse face from which project the cooling fluid inlet and outlet ducts,
  • an upper horizontal face comprising at least a second bracket bracket bracket on the transverse wall for attachment to the body of the pollution control device, a third leg bracket fixing the housing of the control valve, and the conduit of outlet of the exchanger, the second outlet of the depollution unit is connected to the inlet duct of the cooling exchanger via an intermediate elbow duct comprising an axially oriented soleplate intended to be coupled at the second outlet of the pollution control member and a transverse orientation soleplate intended to be coupled to the mating flange of the inlet duct of the exchanger.
  • FIG. 1 is an exploded perspective view of a circuit according to a prior art
  • FIG. 2 is an overall perspective view of a circuit according to a prior art
  • FIG. 3 is a view is an exploded perspective view of a circuit according to the invention
  • FIG. 4 is a view is an overall perspective view of a circuit according to the invention.
  • FIG. 1 shows the assembly of a conventional exhaust circuit of a motor vehicle.
  • the circuit 10 is for example intended to be associated with a motor (not shown) of a motor vehicle.
  • the circuit 10 comprises at least one depollution member 12, in particular a catalyst or a particulate filter, comprising an exhaust gas inlet duct 14, a first outlet 18 connected to an exhaust line (no shown) of an associated vehicle and a second outlet 18 for withdrawing exhaust gases for recycling.
  • the second outlet 18 is connected via an intermediate duct 20 to an inlet duct 22 of an exchanger 24 for cooling the exhaust gases.
  • An outlet pipe 28 of exchanger 24 is connected to a housing 28 receiving an exhaust gas control valve via a flexible pipe 27,
  • the flexible duct 27 comprises, for example, a clamping collar 30 on the outlet duct 26 and a soleplate 32 for fixing it to a soleplate 34 to the casing 28 of the control valve.
  • the casing 28 of the control valve is fixed by the intermediate of the screws 38 on a stand 38 intended to be fixed on the engine of the vehicle,
  • the vibrations to which the casing 28 of the control valve is subjected, cantilevered at the end of the stand 38 and the high temperature induced by the proximity of the depollution member 12 can lead to a degradation of the duct flexible 27. This degradation, may cause leaks or the introduction of air detrimental to the proper functioning of the exhaust gas recirculation, thus disrupting the operation of the engine of the vehicle.
  • this design implies a complex constraining assembly, since it is necessary to first mount the exchange 24 on the 12 depollution member, then the housing 28 the control valve on the stand 38 and the stand 38 on the engine block, and finally to connect them through the flexible conduit 27.
  • the invention overcomes this disadvantage by proposing a simplified assembly in which the housing 28 of the regulating valve is fixed directly on the body 40 of the exchanger 24.
  • the invention proposes an exhaust circuit of the type described above, characterized in that the housing 28 of the regulation valve comprises a soleplate 34 intended to be fixed to a end plate 42 of the outlet duct 26 of the exchanger 24 and in that said casing 28 is fixed directly on a body 40 of the exchanger 24.
  • the body 40 of the exchange is attached to the body 12 of pollution.
  • a 12 depollution comprises a body 42 of substantially axial orientation and in particular substantially cylindrical, a first end 44 comprises the conduit 14 for entering the exhaust gas, at least one side wall 48 has the first outlet 16 of transverse orientation , and a second end 48 has the second outlet 16 of axial orientation and at least one transverse wall 50 for fixing to receive the body 40 of the exchanger.
  • the body 40 of the exchanger 24 is substantially parallelepipedal and extends in the transverse direction.
  • the body 40 of the exchanger 24 comprises in particular a horizontal face 52 below. It also comprises a rear face 54 from which protrudes the inlet duct 22, which is curved so as to extend below the lower horizontal face, and one end of which has a mating flange 56 for connection with The second exit 18 of the depollution unit.
  • the body 40 of the exchanger 24 also has a first transverse face for fixing on the transverse wall for fixing the body of the depollution member, comprising at least a first fixing lug 58 on the transverse wall 50 for fixing the body of the body 24 depollution.
  • Coolant inlet and outlet ducts 80 project from a second opposite transverse face 64. These ducts 60, 62 are intended to be connected to a cooling system of the vehicle to ensure the cooling of the gases. exhaust.
  • the body 40 of the exchanger 24 has an upper horizontal face 66, comprising at least one second tab 88 at the angle of attachment to the transverse wall for fixing the body of the depollution device, a third tab 70 at the angle of attachment. the casing of the regulating valve, and the outlet duct 28 of the exchanger 24.
  • the second outlet 16 of the depollution member 24 is connected to the inlet duct 22 of the cooling exchanger via an intermediate duct 72 with a duct.
  • insole of axial orientation 74 intended to be coupled to the second outlet 18 of the pollution control member and a sole 76 of transverse orientation intended to be coupled to the soleplate
  • the intermediate duct 72 is fixed on the depollution member 12, then the exchanger 24 is fixed on the intermediate duct 22 and the exchanger 24 is then fixed on the depollution member 12. Finally, the housing 28 of the control valve is fixed on the exchanger 24.
  • the invention greatly simplifies the mounting of an exhaust gas recirculation circuit.

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)
  • Exhaust-Gas Circulating Devices (AREA)
EP10709915A 2009-03-23 2010-02-26 Kraftfahrzeugauslasssystem Not-in-force EP2411641B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0951819A FR2943384B1 (fr) 2009-03-23 2009-03-23 Circuit d'echappement de vehicule automobile
PCT/FR2010/050339 WO2010109104A1 (fr) 2009-03-23 2010-02-26 Circuit d'echappement de vehicule automobile

Publications (2)

Publication Number Publication Date
EP2411641A1 true EP2411641A1 (de) 2012-02-01
EP2411641B1 EP2411641B1 (de) 2012-11-28

Family

ID=41213296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10709915A Not-in-force EP2411641B1 (de) 2009-03-23 2010-02-26 Kraftfahrzeugauslasssystem

Country Status (4)

Country Link
US (1) US8769930B2 (de)
EP (1) EP2411641B1 (de)
FR (1) FR2943384B1 (de)
WO (1) WO2010109104A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008038235A1 (de) * 2008-08-18 2010-02-25 Mahle International Gmbh Brennkraftmaschine
EP2743488A1 (de) * 2012-12-11 2014-06-18 BorgWarner Inc. Eingebaute Abgasverwaltungsvorrichtung
JP5920381B2 (ja) * 2014-02-27 2016-05-18 株式会社デンソー 内燃機関の吸排気系システム
EP2944913B1 (de) * 2014-05-16 2018-09-05 Borgwarner Emissions Systems Spain, S.L.U. Wärmaustauschvorrichtung
DE102017204897A1 (de) * 2017-03-23 2018-09-27 Volkswagen Aktiengesellschaft Verbrennungsmotor und Abgasnachbehandlungssystem für einen Verbrennungsmotor
DE102017212393A1 (de) 2017-07-19 2019-01-24 Mahle International Gmbh Bereichsweise flexibel ausgebildete Abgasrückführleitung
FR3074523B1 (fr) * 2017-12-04 2021-02-19 Faurecia Systemes Dechappement Dispositif compact de purification et de recirculation de gaz d'echappement
JP6969409B2 (ja) 2018-01-26 2021-11-24 マツダ株式会社 エンジンの吸排気装置
JP2019127917A (ja) * 2018-01-26 2019-08-01 マツダ株式会社 エンジンの吸排気装置
DE102018109529B4 (de) * 2018-04-20 2019-11-28 Tenneco Gmbh Halteflansch für Dosierventil
JP7067243B2 (ja) * 2018-04-26 2022-05-16 トヨタ自動車株式会社 内燃機関

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DE3833957A1 (de) * 1988-10-06 1990-04-12 Daimler Benz Ag Einrichtung zur abgasrueckfuehrung bei dieselmotoren
DE19750588B4 (de) 1997-11-17 2016-10-13 MAHLE Behr GmbH & Co. KG Vorrichtung zur Abgasrückführung für einen Verbrennungsmotor
GB9823669D0 (en) * 1998-10-30 1998-12-23 Serck Heat Transfer Limited Exhaust gas cooler
FR2801340B1 (fr) * 1999-11-22 2002-02-15 Peugeot Citroen Automobiles Sa Dispositif de refroidissement selectif de gaz d'echappement du moteur d'un vehicule automobile
GB0018406D0 (en) * 2000-07-28 2000-09-13 Serck Heat Transfer Limited EGR bypass tube cooler
US6598388B2 (en) * 2001-02-01 2003-07-29 Cummins, Inc. Engine exhaust gas recirculation particle trap
DE102005021397A1 (de) * 2004-05-07 2006-01-12 Behr Gmbh & Co. Kg Wärmetauscher mit Verbrennungsmotoren
US7251932B2 (en) * 2004-11-08 2007-08-07 Southwest Research Institute Exhaust system and method for controlling exhaust gas flow and temperature through regenerable exhaust gas treatment devices
US7195060B2 (en) * 2005-04-01 2007-03-27 Dana Canada Corporation Stacked-tube heat exchanger
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Also Published As

Publication number Publication date
FR2943384A1 (fr) 2010-09-24
US8769930B2 (en) 2014-07-08
EP2411641B1 (de) 2012-11-28
WO2010109104A1 (fr) 2010-09-30
FR2943384B1 (fr) 2011-03-04
US20120301364A1 (en) 2012-11-29

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