FR3095478B1 - Device for mixing fresh air and recycled exhaust gases for an internal combustion engine - Google Patents

Device for mixing fresh air and recycled exhaust gases for an internal combustion engine Download PDF

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Publication number
FR3095478B1
FR3095478B1 FR1904342A FR1904342A FR3095478B1 FR 3095478 B1 FR3095478 B1 FR 3095478B1 FR 1904342 A FR1904342 A FR 1904342A FR 1904342 A FR1904342 A FR 1904342A FR 3095478 B1 FR3095478 B1 FR 3095478B1
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FR
France
Prior art keywords
fresh air
combustion engine
internal combustion
exhaust gases
mixer
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
FR1904342A
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French (fr)
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FR3095478A1 (en
Inventor
Thomas Philippot
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
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Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR1904342A priority Critical patent/FR3095478B1/en
Publication of FR3095478A1 publication Critical patent/FR3095478A1/en
Application granted granted Critical
Publication of FR3095478B1 publication Critical patent/FR3095478B1/en
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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
    • F02M26/02—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
    • F02M26/02—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
    • 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
    • F02M26/13—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
    • F02M26/32—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
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters

Abstract

Dispositif de mélange pour un moteur à combustion interne muni d’un turbocompresseur et d’un circuit de recirculation partielle des gaz d’échappement à basse pression, le dispositif de mélange (1) comprenant une paroi extérieure (3) présentant une extrémité libre connectée à une admission d’air frais, et se prolongeant par une convergence (3a) en contact avec l’étage compresseur du turbocompresseur, le dispositif de mélange (1) comprenant par ailleurs un mélangeur (4) disposé sur l’axe de rotation de la roue (2a) de l’étage compresseur et compris entre la paroi extérieure (3), l’extrémité libre et l’étage compresseur, le mélangeur (4) étant configuré pour former un mélange d’air frais et de gaz d’échappement partiellement recyclés à l’admission tout en évacuant des condensats par une conduite de sortie (7), l’air frais admis par l’extrémité libre étant ensuite mélangé avec le mélange issu du mélangeur (4). Figure pour l’abrégé : Fig 1Mixing device for an internal combustion engine provided with a turbocharger and a circuit for partial recirculation of the exhaust gases at low pressure, the mixing device (1) comprising an outer wall (3) having a connected free end to an intake of fresh air, and being extended by a convergence (3a) in contact with the compressor stage of the turbocharger, the mixing device (1) further comprising a mixer (4) arranged on the axis of rotation of the impeller (2a) of the compressor stage and included between the outer wall (3), the free end and the compressor stage, the mixer (4) being configured to form a mixture of fresh air and gas exhaust partially recycled to the inlet while evacuating condensate through an outlet pipe (7), the fresh air admitted through the free end then being mixed with the mixture coming from the mixer (4). Figure for the abstract: Fig 1

FR1904342A 2019-04-25 2019-04-25 Device for mixing fresh air and recycled exhaust gases for an internal combustion engine Active FR3095478B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1904342A FR3095478B1 (en) 2019-04-25 2019-04-25 Device for mixing fresh air and recycled exhaust gases for an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1904342A FR3095478B1 (en) 2019-04-25 2019-04-25 Device for mixing fresh air and recycled exhaust gases for an internal combustion engine
FR1904342 2019-04-25

Publications (2)

Publication Number Publication Date
FR3095478A1 FR3095478A1 (en) 2020-10-30
FR3095478B1 true FR3095478B1 (en) 2021-04-02

Family

ID=67262748

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1904342A Active FR3095478B1 (en) 2019-04-25 2019-04-25 Device for mixing fresh air and recycled exhaust gases for an internal combustion engine

Country Status (1)

Country Link
FR (1) FR3095478B1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4609243B2 (en) * 2005-08-30 2011-01-12 株式会社デンソー Exhaust gas recirculation device
KR20080095843A (en) * 2006-01-27 2008-10-29 보그워너 인코포레이티드 Mixing unit for low pressure-egr condensate into the compressor
DE202007005986U1 (en) * 2007-04-24 2008-09-04 Mann+Hummel Gmbh Combustion air and exhaust gas arrangement of an internal combustion engine
WO2010083151A2 (en) 2009-01-13 2010-07-22 Avl North America Inc. Ejector type egr mixer
FR2964151B1 (en) * 2010-08-31 2014-05-23 Coutier Moulage Gen Ind DEVICE FOR INJECTING EXHAUST GAS IN AN INLET PIPE OF A TURBOCHARGER
US10329999B2 (en) * 2013-04-16 2019-06-25 Toyota Jidosha Kabushiki Kaisha Compressor of exhaust turbocharger
WO2017041857A1 (en) * 2015-09-11 2017-03-16 Volvo Truck Corporation Exhaust gas recirculation arrangement
CN106884746B (en) 2017-02-23 2019-04-23 浙江吉利控股集团有限公司 A kind of gas mixer for the engine exhaust circulatory system

Also Published As

Publication number Publication date
FR3095478A1 (en) 2020-10-30

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