Fuel injection pump

Details Fuel injection pump Fuel injection pump

1985-07-16

1987-06-09

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123450, 417462, F02M 3900

Patent

active

046712399

ABSTRACT:
A fuel injection pump for an internal combustion engine has a shaft rotatable by the engine. The shaft is formed therein with a radial bore and an axial bore communicated therewith. Pumping plungers are slidably disposed in the radial bore to cooperate therewith to define a compression chamber and cyclically reciprocated to vary the volume of the compression chamber. An injection plunger is slidably disposed in the axial bore to divide the interior thereof into a first pressure chamber always communicated with the compression chamber and a second pressure chamber adapted to be communicated with a delivery port in a discharge stroke of the pump. The first and second pressure chambers are supplied with fuel in a suction stroke of the pump. The fuel in the second pressure chamber is discharged therefrom in the discharge stroke. A single solenoid valve is provided to control the fuel discharge timing and the quantity of fuel to be discharged from the pump.

REFERENCES:
patent: 4367715 (1983-01-01), Watson
patent: 4445822 (1984-05-01), Hoshi
patent: 4453896 (1984-06-01), Vilardo
patent: 4488526 (1984-12-01), Takahashi
patent: 4492200 (1985-01-01), Takahashi
patent: 4492534 (1985-01-01), Miyaki
patent: 4550702 (1985-11-01), Djordjeuic
patent: 4572138 (1986-02-01), Mowbray
patent: 4574759 (1986-03-01), Leblanc

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