Fuel pumping apparatus

Details Fuel pumping apparatus Fuel pumping apparatus

1991-10-28

1992-08-18

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

12317917, 123450, F02M 3704

Patent

active

051389991

ABSTRACT:
A rotary distributor type fuel pump has an annular cam ring which is movable by a fluid pressure actuated piston to control the timing of fuel delivery. The cylinder containing the piston has an enlarged portion in which is slidable a sleeve located about the piston. The sleeve is engagable with the piston and one end is exposed to a fluid pressure applied to the piston to assist the movement of the piston when a valve is set such that an annular space is part defined by the other end of the sleeve, is connected to a drain.

REFERENCES:
patent: 3147746 (1964-09-01), Hofer
patent: 3486492 (1969-12-01), Lehnerer
patent: 4329961 (1982-05-01), Johnston
patent: 4355621 (1982-10-01), Yasuhara
patent: 4406268 (1983-09-01), Eheim
patent: 4493302 (1985-01-01), Kawamura

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