Fuel pumping apparatus

Details Fuel pumping apparatus Fuel pumping apparatus

1990-01-31

1991-02-19

Smith, Leonard E.

Pumps

Expansible chamber type

Pumping member position controlled port

123496, F04B 5920

Patent

active

049939262

ABSTRACT:
A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a pumping plunger mounted in a bore and movable inwardly by an engine driven cam to displace fuel through an outlet to an injection nozzle. The quantity of fuel supplied to the nozzle is controlled by a spill valve. The apparatus also includes a restricted flow path through which fuel can flow to reduce the initial rate of fuel delivery through the nozzle, the flow path including a valve formed by the plunger and the bore so that fuel can flow through the flow path only during the initial inward movement of the plunger.

REFERENCES:
patent: 4593668 (1986-06-01), Yuzawa

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