Fuel pumping apparatus

Details Fuel pumping apparatus Fuel pumping apparatus

1991-04-17

1993-05-04

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123506, 123447, F02M 4100

Patent

active

052072029

ABSTRACT:
A fuel injection pumping apparatus of the rotary distributor type has a fixed stroke pumping plunger housed in a bore formed in a rotary distributor member. The pumping plunger is actuated by cam lobes formed on a cam ring. A piston housed in a cylinder is provided and one end of the cylinder is connected to the bore. The piston is spring biased towards the one end of the cylinder and the extent of movement of the piston away from the one end of the cylinder is limited by a stop. The piston absorbs the initial volume of fuel delivered by the pumping plunger as the latter is moved inwardly by the cam lobes thereby ensuring that fuel is delivered to an associated engine at a high rate.

REFERENCES:
patent: 3485225 (1969-12-01), Bailey
patent: 3918853 (1975-11-01), Drori
patent: 4029071 (1977-06-01), Saito
patent: 4211203 (1980-07-01), Kobayashi
patent: 4601274 (1986-07-01), Seilly
patent: 4757795 (1988-07-01), Kelly
patent: 5012785 (1991-05-01), Long
patent: 5035587 (1991-07-01), Collingborn
patent: 5044898 (1991-09-01), Harris
patent: 5044899 (1991-09-01), Nicol

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