FR2238055A1 - I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake - Google Patents

I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake

Info

Publication number
FR2238055A1
FR2238055A1 FR7326259A FR7326259A FR2238055A1 FR 2238055 A1 FR2238055 A1 FR 2238055A1 FR 7326259 A FR7326259 A FR 7326259A FR 7326259 A FR7326259 A FR 7326259A FR 2238055 A1 FR2238055 A1 FR 2238055A1
Authority
FR
France
Prior art keywords
exhaust gas
air intake
fresh air
reduction system
pollution reduction
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
FR7326259A
Other languages
French (fr)
Other versions
FR2238055B1 (en
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.)
WILLAUME ROLLAND
Original Assignee
WILLAUME ROLLAND
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 WILLAUME ROLLAND filed Critical WILLAUME ROLLAND
Priority to FR7326259A priority Critical patent/FR2238055A1/en
Publication of FR2238055A1 publication Critical patent/FR2238055A1/en
Application granted granted Critical
Publication of FR2238055B1 publication Critical patent/FR2238055B1/fr
Granted legal-status Critical Current

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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/63—Systems for actuating EGR valves the EGR valve being directly controlled by an operator
    • 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
    • F02M26/17—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
    • F02M26/21—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 with EGR valves located at or near the connection 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
    • 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
    • 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

Abstract

A tube projecting into the exhaust pipe has its open end bent to face upstream so that it captures part of the exhaust gases. It is connected to a similar tube (8) projecting into the intake pipe (9) at a point which forms the throat of a venturi. This injection pipe can rotate and has a pulley (13) which is connected by cables to the accelerator so that it is turned in accordance with engine speed. At minimum throttle its open end (11) faces upstream and at maximum throttle it faces downstream. The amount of exhaust gas sucked in thus depends on the accelerator depression and therefore on engine speed.
FR7326259A 1973-07-18 1973-07-18 I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake Granted FR2238055A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7326259A FR2238055A1 (en) 1973-07-18 1973-07-18 I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7326259A FR2238055A1 (en) 1973-07-18 1973-07-18 I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake

Publications (2)

Publication Number Publication Date
FR2238055A1 true FR2238055A1 (en) 1975-02-14
FR2238055B1 FR2238055B1 (en) 1977-05-13

Family

ID=9122749

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326259A Granted FR2238055A1 (en) 1973-07-18 1973-07-18 I.C. engine pollution reduction system - injects variable proportion of exhaust gas into fresh air intake

Country Status (1)

Country Link
FR (1) FR2238055A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997024522A1 (en) * 1995-12-29 1997-07-10 Robert Bosch Gmbh Device for exhaust gas recirculation with a closure member which can be actuated in the intake duct
EP1957783A1 (en) * 2005-11-29 2008-08-20 Volvo Lastvagnar AB Exhaust gas recirculation mixer for a turbo-charged internal combustion engine
EP2151569A1 (en) * 2008-08-06 2010-02-10 Wärtsilä Switzerland Ltd. Device for removing a waste gas partial stream and combustion engine with this device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997024522A1 (en) * 1995-12-29 1997-07-10 Robert Bosch Gmbh Device for exhaust gas recirculation with a closure member which can be actuated in the intake duct
US5785034A (en) * 1995-12-29 1998-07-28 Robert Bosch Gmbh Exhaust gas recirculation apparatus with a closing element actuatable in the intake conduit
EP1957783A1 (en) * 2005-11-29 2008-08-20 Volvo Lastvagnar AB Exhaust gas recirculation mixer for a turbo-charged internal combustion engine
EP1957783A4 (en) * 2005-11-29 2011-10-12 Volvo Lastvagnar Ab Exhaust gas recirculation mixer for a turbo-charged internal combustion engine
EP2151569A1 (en) * 2008-08-06 2010-02-10 Wärtsilä Switzerland Ltd. Device for removing a waste gas partial stream and combustion engine with this device

Also Published As

Publication number Publication date
FR2238055B1 (en) 1977-05-13

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Legal Events

Date Code Title Description
ST Notification of lapse