Exhaust gas recirculation regulating system

Details Exhaust gas recirculation regulating system Exhaust gas recirculation regulating system

1979-05-29

1980-11-25

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

F02M 2506

Patent

active

042352088

ABSTRACT:
A system for controlling introduction of gas into a passage of an internal combustion engine employs a first control valve in a gas introduction passageway, a second control valve in an air conduit connecting the intake passage to atmosphere, and a regulating valve responsive to vacuum intensity in the intake passage. The regulating valve actuates vacuum responsive actuators for the control valves. This system is used for recirculating exhaust gases into the intake passage. The regulating valve in combination with a restricted orifice for the actuator of the second control valve act to rapidly stop exhaust gas recirculation when the operator decelerates the engine.

REFERENCES:
patent: 3739797 (1973-06-01), Caldwell
patent: 3779222 (1973-12-01), Lorenz
patent: 3818880 (1974-06-01), Dawson et al.
patent: 3884200 (1975-05-01), Caldwell
patent: 3915136 (1975-10-01), Caldwell
patent: 3926161 (1975-12-01), Wertheimer
patent: 3970061 (1976-07-01), Caldwell
patent: 4033308 (1977-07-01), Hayashi et al.
patent: 4111172 (1978-09-01), Nishizawa et al.

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