Fuel pumping apparatus

Details Fuel pumping apparatus Fuel pumping apparatus

1985-07-31

1987-11-17

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123494, 123458, F02M 3900

Patent

active

047066350

ABSTRACT:
A fuel pumping apparatus for supplying fuel to an engine includes a pumping plunger reciprocable in a cylinder by a cam having cam lobes. Fuel is displaced during inward movement of the plunger during forward rotation of the engine by the leading flanks of the lobes. A valve can be closed during the inward movement of the plunger to allow fuel flow through an outlet to an engine. The valve is electrically controlled by a control system which receives plunger position signals. These signals are arranged to occur substantially half way along the trailing flanks of the lobes instead of as is more usual at the top dead center positions of the plunger, whereby if the engine is rotating in reverse the valve will be open while the plunger is moved inwardly by the trailing flanks of the lobes.

REFERENCES:
patent: 4385867 (1983-05-01), Straubel
patent: 4401076 (1983-08-01), Saivo
patent: 4428346 (1984-01-01), Hoshi
patent: 4435128 (1984-03-01), Frey
patent: 4471737 (1984-09-01), McDougal
patent: 4531491 (1985-07-01), Iiyama
patent: 4538580 (1985-09-01), Straubel
patent: 4546749 (1985-10-01), Igashira

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