Fuel injection pump having voltage variation compensation

Details Fuel injection pump having voltage variation compensation Fuel injection pump having voltage variation compensation

1985-01-04

1986-08-05

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123449, 123503, 123506, 123458, 123459, 123490, F02B 300

Patent

active

046036695

ABSTRACT:
A fuel injection pump is described wherein a plunger is rotatingly and reciprocally movable in an enclosure to define a compression chamber which is connected to a fuel inlet during an intake stroke of the plunger and to a fuel outlet during a compression stroke thereby to initiate injection of fuel to the outlet. A solenoid valve is responsive to a voltage applied from a voltage source for providing a pressure relief action on the fuel in the compression chamber. A control unit is responsive to the onset of fuel injection to determine a basic timing at which fuel is to be terminated and corrects the basic timing as a function of the source voltage to compensate for a voltage variation thereof which would otherwise affect on the operation of the solenoid valve. The solenoid valve is then energized at the corrected timing.

REFERENCES:
patent: 4092717 (1978-05-01), Di Nunzio
patent: 4265210 (1981-05-01), Hanisko
patent: 4328526 (1982-05-01), Dilger
patent: 4385611 (1983-05-01), Harper
patent: 4480619 (1984-11-01), Igashira

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