Combined electric fuel pump control circuit intermittent injecti

Details Combined electric fuel pump control circuit intermittent injecti Combined electric fuel pump control circuit intermittent injecti

1973-12-14

1976-07-06

Burns, Wendell E.

Internal-combustion engines

Noncompression

123136, 123139E, 123179L, F02G 300, F02M 3900

Patent

active

039675980

ABSTRACT:
A combined fuel pump control circuit, intermittent injection electronic fuel control system is disclosed herein to provide optimum fuel delivery at constant operating pressure to the fuel injector valve means of an electronically controlled fuel supply system and to eliminate fuel return means. By energizing the pump in response to the engine operating parameters which determine the engine fuel requirement, fuel as calculated to meet the fuel requirement is provided thereby eliminating the need for fuel, in excess of that required by the engine, to be recirculated from the area of the engine back to the fuel reservoir. In order to intermittently energize the fuel pump, the pump is provided with signals which correspond to the injector valve energizing signals in timing and duration.

REFERENCES:
patent: 2981246 (1961-04-01), Woodward
patent: 3036564 (1962-05-01), Giot
patent: 3456629 (1969-07-01), Dawgauthier
patent: 3587545 (1971-06-01), Ballou
patent: 3669081 (1972-06-01), Monpetit
patent: 3680537 (1972-08-01), Suda

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