Exhaust gas recirculation control system for an internal combust

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means

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F02M 2506

Patent

active

041619293

ABSTRACT:
An exhaust gas recirculation control system for an internal combustion engine including a diaphragm type exhaust gas recirculation control valve provided at a middle portion of a passage for conducting exhaust gases to be recirculated, the control valve being controlled by the fluid pressure supplied to its diaphragm chamber, wherein the fluid pressure is controlled to accord with a target value prepared to provide the optimum exhaust gas recirculation in various operating conditions of the engine and selected in accordance wtih the current operating conditions of the engine.

REFERENCES:
patent: 3915134 (1975-10-01), Young et al.
patent: 3963011 (1976-06-01), Saito et al.
patent: 3969614 (1976-07-01), Moyer et al.
patent: 3982395 (1976-09-01), Hasegawa et al.
patent: 4044738 (1977-08-01), Williams et al.
patent: 4052968 (1977-10-01), Hattori et al.

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