FR3060665B1 - THERMAL ENGINE EXHAUST GAS CIRCULATION ASSEMBLY - Google Patents

THERMAL ENGINE EXHAUST GAS CIRCULATION ASSEMBLY Download PDF

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Publication number
FR3060665B1
FR3060665B1 FR1663019A FR1663019A FR3060665B1 FR 3060665 B1 FR3060665 B1 FR 3060665B1 FR 1663019 A FR1663019 A FR 1663019A FR 1663019 A FR1663019 A FR 1663019A FR 3060665 B1 FR3060665 B1 FR 3060665B1
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FR
France
Prior art keywords
exhaust gas
gas circulation
circulation assembly
engine exhaust
thermal engine
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.)
Active
Application number
FR1663019A
Other languages
French (fr)
Other versions
FR3060665A1 (en
Inventor
Thomas Coppin
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 FR1663019A priority Critical patent/FR3060665B1/en
Publication of FR3060665A1 publication Critical patent/FR3060665A1/en
Application granted granted Critical
Publication of FR3060665B1 publication Critical patent/FR3060665B1/en
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Anticipated expiration legal-status Critical

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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
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
    • F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10137—Flexible ducts, e.g. bellows or hoses
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Exhaust Silencers (AREA)

Abstract

Un ensemble de circulation de gaz d'échappement d'un moteur thermique (1) comprend un circuit de recirculation (12) des gaz d'échappement configuré pour permettre le prélèvement d'au moins une partie des gaz d'échappement du moteur thermique pour les réinjecter dans la conduite d'admission (4) du moteur thermique. Le circuit de recirculation (12) débouche sur la conduite d'admission dans une portion d'étranglement (100) de celle-ci et une première partie amont (101) de cette portion d'étranglement présente au voisinage de la jonction avec le circuit de recirculation (12) une section de passage minimale (A2) qui est inférieure à la section de passage minimale (A3) d'une deuxième partie aval (102) de cette portion d'étranglement au voisinage de ladite jonction.An exhaust gas circulation assembly of a heat engine (1) comprises an exhaust gas recirculation circuit (12) configured to allow the sampling of at least part of the exhaust gases of the heat engine for reinject them into the combustion engine intake pipe (4). The recirculation circuit (12) opens onto the inlet pipe in a throttling portion (100) thereof and a first upstream part (101) of this throttling portion present in the vicinity of the junction with the circuit. recirculation (12) a minimum passage section (A2) which is less than the minimum passage section (A3) of a second downstream part (102) of this restriction portion in the vicinity of said junction.

FR1663019A 2016-12-21 2016-12-21 THERMAL ENGINE EXHAUST GAS CIRCULATION ASSEMBLY Active FR3060665B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1663019A FR3060665B1 (en) 2016-12-21 2016-12-21 THERMAL ENGINE EXHAUST GAS CIRCULATION ASSEMBLY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1663019A FR3060665B1 (en) 2016-12-21 2016-12-21 THERMAL ENGINE EXHAUST GAS CIRCULATION ASSEMBLY
FR1663019 2016-12-21

Publications (2)

Publication Number Publication Date
FR3060665A1 FR3060665A1 (en) 2018-06-22
FR3060665B1 true FR3060665B1 (en) 2021-02-19

Family

ID=58054339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1663019A Active FR3060665B1 (en) 2016-12-21 2016-12-21 THERMAL ENGINE EXHAUST GAS CIRCULATION ASSEMBLY

Country Status (1)

Country Link
FR (1) FR3060665B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6408833B1 (en) * 2000-12-07 2002-06-25 Caterpillar Inc. Venturi bypass exhaust gas recirculation system
DE102006009153A1 (en) * 2006-02-24 2007-08-30 Mahle International Gmbh Exhaust gas recirculation device
US8056340B2 (en) * 2010-08-17 2011-11-15 Ford Global Technologies, Llc EGR mixer for high-boost engine systems

Also Published As

Publication number Publication date
FR3060665A1 (en) 2018-06-22

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