Exhaust gas recirculation control system for a diesel engine

Details Exhaust gas recirculation control system for a diesel engine Exhaust gas recirculation control system for a diesel engine

1981-07-21

1983-06-21

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123571, F02M 2506

Patent

active

043889123

ABSTRACT:
An exhaust gas recirculation control system such that the throttle valve is controlled by two vacuum actuators through three stages of fully-opened, half-opened, and fully closed positions, in addition to the control of the exhaust gas recirculation control valve, in accordance with the engine operating conditions including engine load. The EGR valve is fully closed under a heavy engine load and fully opened under a medium and light engine load, and the throttle valve is fully opened under a heavy engine load, half opened under a medium engine load, and fully closed under a light engine load, under due consideration of engine speed.

REFERENCES:
patent: 4313415 (1982-02-01), Shinzawa et al.
patent: 4333438 (1982-06-01), Perez et al.

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