Exhaust gas recirculation system

Details Exhaust gas recirculation system Exhaust gas recirculation system

1976-12-13

1978-06-13

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123117A, F02M 2506

Patent

active

040942872

ABSTRACT:
An exhaust gas recirculation system (EGR system) with an EGR valve means for controlling the amount of the exhaust gas to be recirculated into an intake system in an internal combustion engine, said EGR valve means comprising an intake system vacuum operated valve means for controlling the amount of the recirculated exhaust gas and a vacuum pump operated valve means for additionally controlling the amount of the recirculated exhaust gas. The EGR system preferably further comprises means for stopping EGR operations when not required and means for adjusting a required ignition timing.

REFERENCES:
patent: 3796049 (1974-03-01), Hayashi
patent: 3881456 (1975-05-01), Nohira
patent: 3924589 (1975-12-01), Nohira et al.
patent: 3962868 (1976-06-01), Matumoto
patent: 3999737 (1976-12-01), Hashiguchi
patent: 4002154 (1977-01-01), Kestner
patent: 4033308 (1977-07-01), Hayashi
patent: 4041914 (1977-08-01), Sugihara
patent: 4048968 (1977-09-01), Aoyama

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