Fuel-injection pump for internal combustion engine

Details Fuel-injection pump for internal combustion engine Fuel-injection pump for internal combustion engine

1983-03-25

1984-01-17

Smith, Leonard E.

Pumps

Expansible chamber type

Pumping member position controlled port

123299, F02M 5938

Patent

active

044261985

ABSTRACT:
A constant-stroke, variable by-pass, plunger-type, jerk pump for injecting fuel-oil into a working cylinder of an internal combustion engine, wherein the plunger comprises a passage-way opening at one end thereof into the working chamber of said plunger and adapted to communicate at its other end with at least one duct connected to the fuel supply and opening into the pump cylinder housing said plunger to temporarily cut off the fuel discharged from said chamber to the fuel injector during the upward stroke of the plunger towards its top dead center, the first fuel discharge phase enabling the fuel to be pre-injected into the engine cylinder whereas the second fuel discharge phase provides for the main injection of fuel thereinto.

REFERENCES:
patent: 2306364 (1942-12-01), Skaredoff
patent: 2810375 (1957-10-01), Froehlich et al.

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