Fuel injection pump

Details Fuel injection pump Fuel injection pump

1974-10-08

1976-03-09

Husar, C. J.

Pumps

With condition responsive pumped fluid control

Variable cutoff or pumping member controlled port

417485, 417494, 123139BD, 123140A, 417500, F04B 2300, F04B 4100, F04B 704, F02M 3900

Patent

active

039429148

ABSTRACT:
A fuel injection pump for internal combustion engines includes a pump piston whose simultaneous reciprocation and rotation distributes pressurized fuel to the several injection nozzles of the engine. In order to shift the onset of fuel injection towards a later time during the delivery stroke of the piston, relief channels are disposed in the piston and in the surrounding cylindrical bushing. An annular slide, moving coaxially with respect to the piston, cooperates with the terminal apertures of one or more of these relief channels to relieve the fluid pressure in the working chamber of the pump, thereby interrupting fuel injection to the nozzles of the engine.

REFERENCES:
patent: 2813523 (1957-11-01), Bischoff
patent: 3023705 (1962-03-01), Heiser
patent: 3635603 (1972-01-01), Eheim
patent: 3638631 (1972-02-01), Eheim
patent: 3758241 (1973-09-01), Eheim

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