Internal combustion engine having exhaust gas recirculation syst

Details Internal combustion engine having exhaust gas recirculation syst Internal combustion engine having exhaust gas recirculation syst

1981-08-26

1983-04-05

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123568, F02M 2506

Patent

active

043787770

ABSTRACT:
An internal combustion engine has an exhaust gas recirculation system including a recirculation valve for controlling the amount of exhaust gas returned to the intake system. The position or opening of the valve is controlled to a desired position in accordance with a memory in a memory device storing desired valve positions under various combinations of the engine load and the engine speed. A device is provided for increasing the opening of the recirculation valve when the effective area of the recirculation passage is decreased due to carbon deposits.

REFERENCES:
patent: 3915134 (1975-10-01), Young et al.
patent: 3969614 (1976-07-01), Moyer et al.
patent: 4123729 (1978-10-01), Buetemeister
patent: 4164032 (1979-08-01), Nohira et al.
patent: 4170973 (1979-10-01), Nohira et al.
patent: 4280471 (1981-07-01), Masaki
patent: 4318385 (1982-03-01), Yamaguchi

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