Distribution type fuel injection pump

Details Distribution type fuel injection pump Distribution type fuel injection pump

1980-10-22

1983-06-28

Lazarus, Ira S.

Internal-combustion engines

Charge forming device

With fuel pump

F02M 5920

Patent

active

043899986

ABSTRACT:
A distribution type fuel injection pump for use in a fuel injection combustion engine comprising a plunger capable of moving reciprocally along its axis and simultaneously rotating about its axis and a couple of members forming a cam mechanism having a first cam member and a second cam member. The first cam member is mounted on the plunger and the second cam member is mounted on a housing rotatably about its axis. The couple of cam members cause the plunger to move reciprocally while the plunger is rotating. The angular position of the second cam member about its axis can be controlled by a fuel injection timing control means in accordance with the engine speed. The second cam member can also turn about its axis so as to be adjusted in its angular position by a fuel injection timing adjusting means when the engine is substantially operated at the low speed, for example, at the time of engine start. An auxiliary fuel injection timing adjusting means causes the fuel injection timing adjustable means to auxiliarily adjust in angular position only when the low engine temperature is below a predetermined level.

REFERENCES:
patent: 3943902 (1976-03-01), Skinner
patent: 4143632 (1979-03-01), Kobayashi
patent: 4214564 (1980-07-01), Skinner
patent: 4273090 (1981-06-01), Hofer et al.
patent: 4316441 (1982-02-01), Sakuranaka et al.

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