GB1284323A - Exhaust recirculation systems for motor vehicle internal combustion engines - Google Patents

Exhaust recirculation systems for motor vehicle internal combustion engines

Info

Publication number
GB1284323A
GB1284323A GB02138/70A GB1213870A GB1284323A GB 1284323 A GB1284323 A GB 1284323A GB 02138/70 A GB02138/70 A GB 02138/70A GB 1213870 A GB1213870 A GB 1213870A GB 1284323 A GB1284323 A GB 1284323A
Authority
GB
United Kingdom
Prior art keywords
closed
spring
valve member
diaphragm
valve
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
GB02138/70A
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 GB1284323A publication Critical patent/GB1284323A/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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
    • F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
    • F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of 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
    • F02M26/52—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
    • F02M26/56—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves
    • F02M26/57—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves using electronic means, e.g. electromagnetic valves

Abstract

1284323 Treating I C engine charge NISSAN MOTOR CO Ltd 13 March 1970 [19 March 1969] 12138/70 Heading F1B To reduce the quantity of toxic nitrogen oxides contained in the exhaust gases of a motor vehicle I C engine during acceleration and hill-climbing exhaust gases are supplied to the intake manifold 2 or to the carburetter downstream of the throttle valve. The exhaust gas passage 13, 14 to the manifold 2 is opened, when the switches 22 and 23 are closed, by a valve member 15 movable against the bias of a spring 18. The switch 22 is biased closed by a spring 30 and opened when the intake manifold vacuum acting on the diaphragm 27 is above a predetermined level, e. g. - 350 mm Hg. The relay switch 23, which is normally open, is closed when the voltage delivered by a speed detector 31 driven from the output shaft of the gear box 7 corresponds to a vehicle speed in a predetermined range, e.g. 20 to 80 km /h. In the embodiment shown, valve member 15 is intergral with the core 17 of a solenoid coil 19. The passage 13 contains a filter 13a, e.g. for carbon. In further embodiments, Figs. 5 and 6 (not shown), the exhaust gas passage (38, 39) is controlled by a valve spool (41) slidable in a casing (37) or a valve member (55) connected to a diaphragm (54). The valve spool or member are spring-biased closed and the spool or diaphragm is subjected to intake manifold vacuum under the control of a valve member (49), which is spring-biased to close the vacuum connection and opened by a solenoid coil (51) when the switches 22 and 23 are closed. The ignition switch 34 may be included in the solenoid circuit.
GB02138/70A 1969-03-19 1970-03-13 Exhaust recirculation systems for motor vehicle internal combustion engines Expired GB1284323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2059669 1969-03-19

Publications (1)

Publication Number Publication Date
GB1284323A true GB1284323A (en) 1972-08-09

Family

ID=12031631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB02138/70A Expired GB1284323A (en) 1969-03-19 1970-03-13 Exhaust recirculation systems for motor vehicle internal combustion engines

Country Status (5)

Country Link
US (1) US3605709A (en)
DE (1) DE2012938C3 (en)
FR (1) FR2035076B1 (en)
GB (1) GB1284323A (en)
SE (1) SE358211B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1350415A (en) * 1970-12-17 1974-04-18 Bosch Gmbh Robert Induction and exhaust systems for internal combustion engines
US3809038A (en) * 1972-08-24 1974-05-07 Dana Corp Exhaust pollution control apparatus
JPS5429652B2 (en) * 1972-08-31 1979-09-25
DE2255297A1 (en) * 1972-11-11 1974-05-22 Bosch Gmbh Robert VALVE FOR COMBUSTION ENGINE EXHAUST GAS PIPES
US3783847A (en) * 1972-12-06 1974-01-08 Ford Motor Co Engine spark control and exhaust gas recirculation vacuum signal selector
JPS5245704Y2 (en) * 1972-12-20 1977-10-18
IT996383B (en) * 1973-05-10 1975-12-10 Pierburg Kg A CONTROL DEVICE FOR THE RETURN OF EXHAUST GAS IN THE INTAKE PIPES OF AN INTERNAL COMBUSTION ENGINE
US3901202A (en) * 1973-05-25 1975-08-26 Gen Motors Corp Vacuum bias regulator assembly
FR2246741B1 (en) * 1973-10-09 1979-01-26 Peugeot & Renault
US4060065A (en) * 1973-10-23 1977-11-29 Nissan Motor Company, Limited Exhaust gas recirculation system having means to estimate actual recirculation rate based on intake and exhaust gas temperatures
US3969614A (en) * 1973-12-12 1976-07-13 Ford Motor Company Method and apparatus for engine control
JPS5627056A (en) * 1979-08-11 1981-03-16 Honda Motor Co Ltd Exhaust gas recycling controller in engine
FR2534315A1 (en) * 1982-10-11 1984-04-13 Renault EXHAUST GAS RECIRCULATION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES
FR2534316A1 (en) * 1982-10-11 1984-04-13 Renault Exhaust gas recirculation control device for internal combustion engines
DE3335770A1 (en) * 1983-10-01 1985-04-11 Bayerische Motoren Werke AG, 8000 München METHOD FOR EXHAUST GAS RECIRCULATION IN AN INTERNAL COMBUSTION ENGINE
US6466116B1 (en) * 2000-10-02 2002-10-15 Johnson Electric S.A. Starter motor

Also Published As

Publication number Publication date
DE2012938C3 (en) 1974-04-04
US3605709A (en) 1971-09-20
DE2012938B2 (en) 1973-09-13
SE358211B (en) 1973-07-23
FR2035076A1 (en) 1970-12-18
FR2035076B1 (en) 1974-05-31
DE2012938A1 (en) 1970-10-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee