Pollution control arrangements for engines

Details Pollution control arrangements for engines Pollution control arrangements for engines

1975-06-05

1977-08-30

Burns, Wendell E.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02M 2506

Patent

active

040447383

ABSTRACT:
An engine exhaust recirculating valve is operated by a solenoid. The valve is normally open, but has an electronic control circuit, including an engine speed transducer, which energizes the solenoid to close the valve when the engine speed is above a predetermined level.

REFERENCES:
patent: 3636934 (1972-01-01), Nakasima et al.
patent: 3646764 (1972-03-01), Nakajima et al.
patent: 3673993 (1972-07-01), Nakajima et al.
patent: 3799133 (1974-03-01), Frank
patent: 3807376 (1974-04-01), Glockler et al.
patent: 3817232 (1974-06-01), Nakajima et al.
patent: 3915134 (1975-10-01), Young et al.

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