Electronically controlled distributor type fuel injection pump

Details Electronically controlled distributor type fuel injection pump Electronically controlled distributor type fuel injection pump

1984-11-20

1986-05-06

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123503, 123458, 417494, F02M 3900

Patent

active

045864802

ABSTRACT:
A pair of cut-off ports are formed in a plunger and a plunger barrel at a predetermined axial location and registrable with each other to spill pressurized fuel into a zone under lower pressure. A communication passageway communicates a pump working chamber defined by the plunger at one end thereof with the zone under lower pressure. A solenoid valve is arranged across the communication passageway for blocking same. Control means controls the solenoid valve to cause same to selectively assume an open position and a closed position. While the plunger moves toward the pump working chamber, the solenoid valve is closed by the control means to start injection of fuel present in the pump working chamber, and upon registration of the cut-off ports with each other, the fuel injection is terminated.

REFERENCES:
patent: 1664608 (1928-04-01), French
patent: 3724436 (1973-04-01), Nagata
patent: 4385614 (1983-05-01), Eheim
patent: 4413600 (1982-04-01), Yanagawa
patent: 4449504 (1984-05-01), Furuhashi

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