Fuel pumping apparatus

Details Fuel pumping apparatus Fuel pumping apparatus

1985-07-10

1986-07-08

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123458, 137471, 137878, 251 95, 251228, 417440, F02M 3900, F16K 1104

Patent

active

045986851

ABSTRACT:
A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a valve means operable to control the spillage of fuel from a high pressure pump. The valve means includes first and second valve elements connected by a pivotal beam carried on a pivot movable in the direction of valve closure when an actuator is energized. The first valve element is biased by a spring to the open position and through the beam the second valve element is held in the closed position by the pressure developed by the pump and the second valve element is urged to the open position by the pressure but can be held closed against the pressure by the actuator. When the actuator is de-energized the second valve element is urged open by the pressure to lower the pressure and the spring then opens the first valve element and closes the second valve element.

REFERENCES:
patent: 3491795 (1970-01-01), Jennings
patent: 3794067 (1974-02-01), Beck
patent: 4027849 (1977-06-01), Muller
patent: 4200073 (1980-04-01), Stoltman
patent: 4378775 (1983-04-01), Straubel
patent: 4425941 (1984-01-01), Weaver
patent: 4475507 (1984-10-01), Miyaki
patent: 4502445 (1985-03-01), Roca-Nierga
patent: 4519351 (1985-05-01), Archer
patent: 4530329 (1985-07-01), Maisch
patent: 4545560 (1985-10-01), Marchdet

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