GB1516953A - Flow rate control apparatus in an exhaust gas recirculation system of an internal combustion engine - Google Patents

Flow rate control apparatus in an exhaust gas recirculation system of an internal combustion engine

Info

Publication number
GB1516953A
GB1516953A GB7186/76A GB718676A GB1516953A GB 1516953 A GB1516953 A GB 1516953A GB 7186/76 A GB7186/76 A GB 7186/76A GB 718676 A GB718676 A GB 718676A GB 1516953 A GB1516953 A GB 1516953A
Authority
GB
United Kingdom
Prior art keywords
valve
exhaust gas
venturi
flow rate
combustion 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.)
Expired
Application number
GB7186/76A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1516953A publication Critical patent/GB1516953A/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
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • 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
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/68—Closing members; Valve seats; Flow passages

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)

Abstract

1516953 Recirculating exhaust gas NISSAN MOTOR CO Ltd 24 Feb 1976 [31 March 1975] 7186/76 Heading F1B To maintain the mass flow of recirculating exhaust gas through a vacuum operated EGR valve, independent of the pressure difference across said valve above a critical pressure value (equal to or greater than 100 m.m.H.g.) the valve-member 24 is shaped to coact with the Venturi section 22 so as to produce sonic gas flow in the Venturi above said critical pressure. To obtain sonic flow, the angle 0 is in the range 3 to 10 degrees. A flange portion 24b closes the control valve 2, and a control vacuum may be generated from a Venturi upstream of the air inlet throttle valve, Fig. 1. Different Venturi valve arrangements are disclosed. (Figs. 4-6 not shown).
GB7186/76A 1975-03-31 1976-02-24 Flow rate control apparatus in an exhaust gas recirculation system of an internal combustion engine Expired GB1516953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50038928A JPS51114524A (en) 1975-03-31 1975-03-31 Exhaust recycling controlling device

Publications (1)

Publication Number Publication Date
GB1516953A true GB1516953A (en) 1978-07-05

Family

ID=12538880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7186/76A Expired GB1516953A (en) 1975-03-31 1976-02-24 Flow rate control apparatus in an exhaust gas recirculation system of an internal combustion engine

Country Status (4)

Country Link
JP (1) JPS51114524A (en)
DE (1) DE2612122A1 (en)
FR (1) FR2306338A1 (en)
GB (1) GB1516953A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666192B2 (en) 2001-11-14 2003-12-23 Delphi Technologies, Inc. Fluid control valve and system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5218530A (en) * 1975-08-05 1977-02-12 Nissan Motor Co Ltd Exhaust gas reflux control system
JPS5845593B2 (en) * 1978-03-06 1983-10-11 本田技研工業株式会社 Additional fluid control device for internal combustion engines
US4398524A (en) * 1981-07-24 1983-08-16 Ford Motor Company Exhaust gas recirculation system
JPS60249660A (en) * 1984-05-25 1985-12-10 Mitsubishi Electric Corp Exhaust-gas recirculation controller for engine
FR2690714B1 (en) * 1992-04-29 1994-07-08 Rivapompe Sa VALVE FOR RECYCLING EXHAUST GASES FROM AN INTERNAL COMBUSTION ENGINE.
US5413082A (en) * 1994-01-19 1995-05-09 Siemens Electric Limited Canister purge system having improved purge valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981283A (en) * 1974-09-03 1976-09-21 Ford Motor Company Engine exhaust gas recirculating control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666192B2 (en) 2001-11-14 2003-12-23 Delphi Technologies, Inc. Fluid control valve and system

Also Published As

Publication number Publication date
FR2306338B1 (en) 1980-03-28
JPS51114524A (en) 1976-10-08
DE2612122A1 (en) 1976-10-14
FR2306338A1 (en) 1976-10-29

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee