Electronic control system for internal combustion engines

Details Electronic control system for internal combustion engines Electronic control system for internal combustion engines

1979-10-16

1981-03-24

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

F02B 4708

Patent

active

042573823

ABSTRACT:
In an exhaust gas recirculation system adapted to an internal combustion engine, the system comprises a servomotor to be operated by pneumatic pressure and a control valve actuated by the servomotor to control the quantity of exhaust gases recirculated into an intake manifold from an exhaust pipe. The pneumatic pressure applied to the servomotor is electrically controlled without undesired errors to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed:

REFERENCES:
patent: 4161929 (1979-07-01), Nohira et al.
patent: 4163435 (1979-08-01), Nakajima et al.
patent: 4177777 (1979-12-01), Maruyama et al.

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