Liquid fuel pumping apparatus

Details Liquid fuel pumping apparatus Liquid fuel pumping apparatus

1987-05-14

1988-07-26

Freeh, William L.

Pumps

Expansible chamber type

Moving cylinder

123450, F04B 1900, F04B 2900, F02M 4114

Patent

active

047596945

ABSTRACT:
A liquid fuel pumping apparatus of the rotary distributor type has a rotary distributor which is also axially movable to determine the quantity of fuel supplied by the apparatus. Inclined stop surfaces are provided to limit the outward movement of the pumping plungers during the filling strokes and an axial reaction is applied to the distributor member when the surfaces engage. The axial position of the distributor member is controlled by applying fluid pressure to one end thereof, the fluid being supplied to a chamber. A supply pasage to the chamber includes a check valve and escape of fluid from the chamber is controlled by a sleeve which covers a port. When the axial reaction is applied the port is closed by the sleeve and the check valve closes to form a hydraulic lock.

REFERENCES:
patent: 3485225 (1969-12-01), Bailey
patent: 4362141 (1982-12-01), Mowbray
patent: 4462370 (1984-07-01), Jarret
patent: 4572138 (1986-02-01), Mowbray

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