Fuel injector

Details Fuel injector Fuel injector

1974-09-09

1977-09-20

Dority, Jr., Carroll B.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123139R, 123 46R, F02M 3900

Patent

active

040489701

ABSTRACT:
A fuel injector for a compression ignition engine comprises a fuel injection nozzle, a valve controlled fuel supply chamber located behind the injection nozzle for storing a quantity of fuel, a port for admitting fuel to the supply chamber, a fuel piston operating in the supply chamber for compressing the fuel stored therein and expelling the fuel therefrom via the injection nozzle, and a hydraulic actuator means responsive to engine cylinder pressure for actuating the fuel piston. The hydraulic actuator means includes a spring loaded shuttle valve arranged to reciprocate between two limit positions in accordance with cyclical variations of gas pressure in the engine cylinder, and pumping means for controlling the supply of pressurized hydraulic fluid to actuate the fuel piston in accordance with the position of the shuttle valve.

REFERENCES:
patent: 2246701 (1941-06-01), Steiner
patent: 2420431 (1947-05-01), Kalitinsky
patent: 2635922 (1953-04-01), Kolstee
patent: 3146765 (1964-09-01), Bush

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