Method and apparatus for controlling a fuel injection system

Details Method and apparatus for controlling a fuel injection system Method and apparatus for controlling a fuel injection system

1979-02-28

1981-04-07

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

123458, 123497, 417 53, 417251, F04B 4906

Patent

active

042603331

ABSTRACT:
A method and an apparatus for operating a fuel supply system, in particular a fuel injection system, in which a fuel supply pump continuously supplies fuel and wherein the excess fuel not required for injection is returned to the fuel reservoir. In order to reduce the average operating power of the pump and thus reduce the average amount of fuel returned to the tank, thereby reducing undesirable temperature increases of the fuel in the reservoir, the system fuel pressure is monitored and maintained at a value substantially equal to a reference value. The electrical power of the fuel supply pump is altered continuously so as to maintain the fuel system pressure at the reference level.

REFERENCES:
patent: 3584977 (1971-06-01), Coleman et al.
patent: 3669080 (1972-06-01), Monpetit
patent: 3692430 (1972-09-01), Timmons
patent: 3827409 (1974-08-01), O'Neill
patent: 3882861 (1975-05-01), Kettering et al.
patent: 4112901 (1978-09-01), Chapin et al.

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