Fuel injection pump for internal combustion engines

Details Fuel injection pump for internal combustion engines Fuel injection pump for internal combustion engines

1987-12-31

1989-04-04

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

With fuel pump

123503, 123373, 123458, F02M 3900

Patent

active

048175757

ABSTRACT:
A fuel injection pump of the distributor pump type having a pump piston driven for simultaneous reciprocation and rotation, the supply quantity of which that is effective for injection is controlled by the opening of a relief conduit of the pump work chamber in that with the aid of a mechanical regulator an annular slide is moved into variable stroke positions on the pump piston. Additionally, for an electronic regulation of the total injection quantity, a pre-stroke (hv) is provided, which is determined by a first valve and which, under the control of a second, electrically controlled valve connected to the output side of the first valve, is added to the basic supply stroke in a variably effective manner in terms of injection. Thus the fuel injection quantity can be regulated within the context of the fuel injection quantity difference resulting from the pre-stroke.

REFERENCES:
patent: 4271808 (1981-06-01), Kodayashi
patent: 4535742 (1985-08-01), Laufer
patent: 4586480 (1986-06-01), Kobayashi
patent: 4604979 (1986-12-01), Kobayashi
patent: 4697565 (1987-10-01), Kobayashi
patent: 4730585 (1988-02-01), Abe

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