GB1343946A - Devices for recirculating exhaust gases in internal bombustion engines - Google Patents

Devices for recirculating exhaust gases in internal bombustion engines

Info

Publication number
GB1343946A
GB1343946A GB1889671*[A GB1889671A GB1343946A GB 1343946 A GB1343946 A GB 1343946A GB 1889671 A GB1889671 A GB 1889671A GB 1343946 A GB1343946 A GB 1343946A
Authority
GB
United Kingdom
Prior art keywords
valve
recirculation
switch
engines
vacuum
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
Application number
GB1889671*[A
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.)
Automobiles Peugeot SA
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Automobiles Peugeot SA
Renault SAS
Regie Nationale des Usines Renault
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 Automobiles Peugeot SA, Renault SAS, Regie Nationale des Usines Renault filed Critical Automobiles Peugeot SA
Publication of GB1343946A publication Critical patent/GB1343946A/en
Expired 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
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/38—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
    • 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
    • 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
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • F02M26/58—Constructional details of the actuator; Mounting thereof

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)
  • Fluid-Driven Valves (AREA)

Abstract

1343946 Recirculating exhaust gas in I. C. engines REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 3 June 1971 [12 June 1970 26 Nov 1970] 18896/71 Heading F1B [Also in Division F2] Exhaust gases are selectively recirculated through a control valve 5, Fig.1 between a muffler 4 and an induction manifold 2 as a function of specific engine operating conditions, the recirculation taking place during the engine cranking period before ignition after which it is stopped, during low engine speeds when the induction vacuum is above a pre-adjusted value and is stopped when the vacuum drops below the value and when the engine operates under full load conditions. When starter motor switch 31 is closed the energization of coil 29 moves rod 20 to compress spring 26 and unseat needle valve 9 to inter-connect pipes 6 and 7. The opening of switch 31 when ignition occurs results in the seating of valve 9. The valve is opened again when the inlet vacuum communicated via pipe 23 to casing 22 exceeds a predetermined value, the latter being adjusted as a function of the compression of spring 26. When the accelerator pedal is fully depressed switch 32, together with a switch controlling valve 34 is closed to start recirculation. In a modification a recirculation valve is controlled by manifold depression alone, the electromagnetic control being separate (not described). The pipe(50), Fig.2 (not shown) communicates the induction manifold downstream of the carburettor throttle to move diaphragm 47 against spring 51 thereby opening valve 39 to start recirculation.
GB1889671*[A 1970-11-26 1971-06-03 Devices for recirculating exhaust gases in internal bombustion engines Expired GB1343946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7042529A FR2115614A6 (en) 1970-11-26 1970-11-26

Publications (1)

Publication Number Publication Date
GB1343946A true GB1343946A (en) 1974-01-16

Family

ID=9064774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1889671*[A Expired GB1343946A (en) 1970-11-26 1971-06-03 Devices for recirculating exhaust gases in internal bombustion engines

Country Status (2)

Country Link
FR (1) FR2115614A6 (en)
GB (1) GB1343946A (en)

Also Published As

Publication number Publication date
FR2115614A6 (en) 1972-07-07
DE2166337B2 (en) 1975-12-11
DE2166337A1 (en) 1973-09-13

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee