Exhaust gas recirculation control system with atmospheric pressu

Details Exhaust gas recirculation control system with atmospheric pressu Exhaust gas recirculation control system with atmospheric pressu

1982-09-30

1984-05-29

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123568, 123571, 123585, F02M 2506, F02M 2300

Patent

active

044508247

ABSTRACT:
In a diesel engine exhaust gas recirculation system wherein an exhaust gas recirculation control valve operated by an operating air pressure controls the flow resistance of the exhaust gas recirculation passage according to variation of the operating air pressure effected by an operating air pressure control valve according to the load on the engine so as to replace most of the excess air part of the intake air by recirculated exhaust gases, an atmospheric pressure responsive air pressure control valve is provided so as to supply an air pressure which has been beforehand controlled so as to compensate for such changes of atmospheric pressure as caused by changes of altitude to the operating air pressure control valve as an operating air pressure source.

REFERENCES:
patent: 4237837 (1980-12-01), Toda et al.
patent: 4365608 (1982-12-01), Bradshaw et al.
patent: 4369753 (1983-01-01), Sugiyama
patent: 4387693 (1983-06-01), Romblom

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