FR3038661B1 - EXHAUST GAS RECIRCULATION CIRCUIT FOR A THERMAL IGNITION ENGINE - Google Patents

EXHAUST GAS RECIRCULATION CIRCUIT FOR A THERMAL IGNITION ENGINE Download PDF

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Publication number
FR3038661B1
FR3038661B1 FR1556535A FR1556535A FR3038661B1 FR 3038661 B1 FR3038661 B1 FR 3038661B1 FR 1556535 A FR1556535 A FR 1556535A FR 1556535 A FR1556535 A FR 1556535A FR 3038661 B1 FR3038661 B1 FR 3038661B1
Authority
FR
France
Prior art keywords
exhaust gas
gas recirculation
recirculation circuit
ignition engine
thermal ignition
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 - Fee Related
Application number
FR1556535A
Other languages
French (fr)
Other versions
FR3038661A1 (en
Inventor
Hua Su
Sylvain Favelier
Florent David
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.)
Valeo Systemes de Controle Moteur SAS
Original Assignee
Valeo Systemes de Controle Moteur 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 Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Priority to FR1556535A priority Critical patent/FR3038661B1/en
Priority to PCT/FR2016/051640 priority patent/WO2017006025A1/en
Publication of FR3038661A1 publication Critical patent/FR3038661A1/en
Application granted granted Critical
Publication of FR3038661B1 publication Critical patent/FR3038661B1/en
Expired - Fee Related 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
    • F02M26/13—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
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0418—Layout of the intake air cooling or coolant circuit the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface
    • 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
    • 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
    • F02M26/33—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 controlling the temperature of the recirculated gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2720/00—Engines with liquid fuel
    • F02B2720/30—Engines with air compression and ignition device
    • 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
    • F02M26/23—Layout, e.g. schematics
    • F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
    • 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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/71—Multi-way valves
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

L'invention a pour objet un circuit (22) de recirculation de gaz d'échappement pour un moteur thermique (10) à essence comportant : - un échangeur thermique (50) agencé pour refroidir les gaz d'échappement qui le traversent, et - un conduit de dérivation (60) dudit échangeur thermique pour sélectivement diriger les gaz d'échappement vers le moteur (10) sans traverser l'échangeur thermique (50).The invention relates to an exhaust gas recirculation circuit (22) for a gasoline engine (10) comprising: a heat exchanger (50) arranged to cool the exhaust gases flowing through it, and a bypass duct (60) of said heat exchanger for selectively directing the exhaust gas to the engine (10) without passing through the heat exchanger (50).

FR1556535A 2015-07-09 2015-07-09 EXHAUST GAS RECIRCULATION CIRCUIT FOR A THERMAL IGNITION ENGINE Expired - Fee Related FR3038661B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1556535A FR3038661B1 (en) 2015-07-09 2015-07-09 EXHAUST GAS RECIRCULATION CIRCUIT FOR A THERMAL IGNITION ENGINE
PCT/FR2016/051640 WO2017006025A1 (en) 2015-07-09 2016-06-30 Exhaust gas recirculation circuit for a spark-ignition heat engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1556535A FR3038661B1 (en) 2015-07-09 2015-07-09 EXHAUST GAS RECIRCULATION CIRCUIT FOR A THERMAL IGNITION ENGINE
FR1556535 2015-07-09

Publications (2)

Publication Number Publication Date
FR3038661A1 FR3038661A1 (en) 2017-01-13
FR3038661B1 true FR3038661B1 (en) 2019-01-25

Family

ID=54007904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1556535A Expired - Fee Related FR3038661B1 (en) 2015-07-09 2015-07-09 EXHAUST GAS RECIRCULATION CIRCUIT FOR A THERMAL IGNITION ENGINE

Country Status (2)

Country Link
FR (1) FR3038661B1 (en)
WO (1) WO2017006025A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10465635B2 (en) * 2017-03-21 2019-11-05 GM Global Technology Operations LLC Systems and methods with improved LR-EGR activation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7007680B2 (en) * 2003-08-07 2006-03-07 Mack Trucks, Inc. Cooler bypass valve system and method
DE102004044895A1 (en) * 2004-09-14 2006-03-30 Volkswagen Ag Exhaust gas recirculation device and method for operating the exhaust gas recirculation device
DE102008008492B4 (en) * 2008-02-11 2015-05-21 Pierburg Gmbh Method for controlling a motor vehicle internal combustion engine arrangement
JP2013256936A (en) * 2012-05-16 2013-12-26 Denso Corp Exhaust recirculating device
JP6051989B2 (en) * 2013-03-21 2016-12-27 マツダ株式会社 Engine cooling system

Also Published As

Publication number Publication date
FR3038661A1 (en) 2017-01-13
WO2017006025A1 (en) 2017-01-12

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