Hydraulic pump

Details Hydraulic pump Hydraulic pump

1985-08-05

1987-05-05

Vrablik, John J.

Pumps

Diverse pumps

Series

417273, 417295, 417302, 417307, 123506, F04B 2310, F04B 106, F04B 4902, F02M 3704

Patent

active

046628258

ABSTRACT:
A supply pump for continuously supplying pressurized fuel to an accumulator-type injector system employs an electrically controlled metering valve for regulating the supply of fuel to the pump chamber. The output pressure of the pressurized fuel from the pump is regulated by means of a relief valve assembly. The inlet metering valve also controls the operation of the relief valve assembly. The relief valve assembly comprises a hydraulically controlled piston which selectively controls the position of a valve member for releasing pressurized fuel from the outlet portion of the pump so that the pressurized fuel in the injection system may be regulated by controlling the fuel supply to the pump chamber and by also releasing pressurized fuel from the pressurized injection system.

REFERENCES:
patent: 2461121 (1949-02-01), Markham
patent: 2653543 (1953-09-01), Mott
patent: 2805038 (1957-09-01), Towler et al.
patent: 3412682 (1968-11-01), Kemp
patent: 4474158 (1984-10-01), Mowbray

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