Exhaust gas recirculating control system

Details Exhaust gas recirculating control system Exhaust gas recirculating control system

1976-12-13

1978-09-19

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

041145763

ABSTRACT:
An exhaust gas recirculating control system for internal combustion engines including an engine vacuum operated exhaust gas recirculating valve which allows recirculation of the engine exhaust when a high vacuum is applied, an engine vacuum operated vacuum control valve which allows air pressure to be applied to the exhaust gas recirculation valve when the engine vacuum exceeds a predetermined level, and a vacuum transmitting valve which delays in time the application of engine vacuum to the vacuum control valve. In this way, exhaust gas recirculation occurs during a fixed period after acceleration of the vehicle occurs.

REFERENCES:
patent: 3739797 (1973-06-01), Caldwell
patent: 3768452 (1973-10-01), Lewis
patent: 3884200 (1975-05-01), Caldwell
patent: 3885536 (1975-05-01), Marshall
patent: 3962868 (1976-06-01), Matumoto
patent: 3992878 (1976-11-01), Moorman
patent: 3994269 (1976-11-01), Takaoka
patent: 4026168 (1977-05-01), Kobayashi
patent: 4031871 (1977-06-01), Hamanishi
patent: 4040402 (1977-08-01), Nohira
patent: 4041915 (1977-08-01), Konishi

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