Hydraulic system for charging an accumulator

Details Hydraulic system for charging an accumulator Hydraulic system for charging an accumulator

1984-07-25

1987-05-19

Dority, Jr., Carroll B.

Power plants

Pressure fluid source and motor

With control means for structure storing work driving energy

60452, F16D 3102

Patent

active

046656979

ABSTRACT:
A hydraulic system comprises an accummulator for supplying hydraulic fluid to a load, a variable displacement pump for charging the accummulator and a valve means for adjusting the pump to deliver a high pressure for charging the accummulator and then to a low pressure when the load is supplied with fluid from the accummulator. By this operation, in which the pump is switched between the zero stroke positions of high and low pressure, the losses of the pump are decreased and the lifetime is increased.

REFERENCES:
patent: 2799995 (1957-07-01), Herman
patent: 4157233 (1979-06-01), Horiuchi
patent: 4518321 (1985-05-01), Schniederjan

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