Fuel injection pump

Details Fuel injection pump Fuel injection pump

1983-10-19

1985-09-03

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123357, 123450, 123458, F02M 5934

Patent

active

045385807

ABSTRACT:
A fuel injection pump for internal combustion engines in which by means of an obliquely extending control groove on the jacket face of a distributor, the end of injection can be varied by opening a relief conduit during the displacement of the distributor. The injection onset is made to follow this variable end of injection by providing that the stroke position of the pump pistons of the fuel injection pump is ascertained at the end of injection by a transducer, by means of which at the same time a metering duration of a magnetic valve that has already been opened at the time of the end of the injection stroke is controlled. In this manner, with a radial piston pump so embodied, the opportunity is afforded of accurately adjusting the quantity of fuel to be metered by means of a magnetic valve, even with variable injection times. All that needs to be done is that the magnetic valve be closed exactly and rapidly at the end of metering, while an error in opening on the part of the magnetic valve does not occur. In this manner, a very precise metering of the fuel to be injected is attained with simple means.

REFERENCES:
patent: 4378775 (1983-04-01), Straubel
patent: 4398519 (1983-08-01), Tissot
patent: 4406263 (1983-09-01), Leblanc

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