Method and apparatus for regulating fuel injection timing and qu

Details Method and apparatus for regulating fuel injection timing and qu Method and apparatus for regulating fuel injection timing and qu

1986-04-21

1988-07-19

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123501, 123458, F02M 3900

Patent

active

047577959

ABSTRACT:
An internal combustion engine fuel injection system having a reciprocating charge pump and a bidirectional flow, solenoid valve for precisely regulating the fuel injection timing by precisely reglating the intake charge quantity of fuel supplied to the charge pump during each intake stroke and for precisely regulating the fuel injection quantity by precisely regulating the spill termination of the high pressure delivery of fuel during each pumping stroke. An electrical controller having a data processor timely energizes and deenergizes the solenoid valve and adjusts the charge pump stroke timing, if adjustable, for adjusting the fuel injection timing and quantity. A start-of-pumping sensor or charge pump stroke timing sensor is used to provide a closed loop feedback, or in the alternative where the charge pump stroke is not adjustable, a calibrated input is used in lieu of a charge pump stroke timing sensor.

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