Exhaust gas recirculation control system

Details Exhaust gas recirculation control system Exhaust gas recirculation control system

1977-09-06

1979-08-07

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

041634357

ABSTRACT:
A vacuum signal is produced, which is representative of a function of the flow rate of engine taken air and which is employed for directly or indirectly operating a diaphragm unit of an exhaust gas recirculation control valve, by admitting atmospheric air into a vacuum from a vacuum source by employing a solenoid valve in such a manner that the solenoid valve varies the amount of admitted atmospheric air in accordance with the flow rate of engine taken air.

REFERENCES:
patent: 1679521 (1928-08-01), Good
patent: 3636934 (1972-01-01), Nakajima et al.
patent: 3643640 (1972-02-01), Kraus
patent: 3791144 (1974-02-01), Lang
patent: 3961610 (1976-06-01), Thurston
patent: 3981283 (1976-09-01), Kaufman
patent: 4043304 (1977-08-01), Stumpp et al.
patent: 4094285 (1978-06-01), Oyama et al.

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