Computer-controlled exhaust gas recirculation system for interna

Details Computer-controlled exhaust gas recirculation system for interna Computer-controlled exhaust gas recirculation system for interna

1979-11-26

1981-07-07

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

F02B 4708, F02M 2506

Patent

active

042768667

ABSTRACT:
In an internal combustion engine having an exhaust recirculation system including a combination of a vacuum-operated recirculation rate control valve and a solenoid-operated vacuum compensating valve, the vacuum compensating valve is controlled by pulse signals delivered from a microcomputer responsive to predetermined operational parameters, such as the revolution speed of the engine and the load on the engine, for modifying the pulse signals depending upon, for example, the accelerating and non-accelerating conditions of the engine.

REFERENCES:
patent: 4153013 (1979-05-01), Bianchi et al.
patent: 4161162 (1979-07-01), Latsch et al.
patent: 4161929 (1979-07-01), Nohira et al.
patent: 4164032 (1979-08-01), Nohira et al.
patent: 4164206 (1979-08-01), Toelle
patent: 4166437 (1979-09-01), Bianchi et al.
patent: 4170973 (1979-10-01), Nohira et al.
patent: 4171691 (1979-10-01), Nohira et al.
patent: 4173205 (1979-11-01), Toelle

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