Valve arrangement for use with a hydraulic accumulator

Details Valve arrangement for use with a hydraulic accumulator Valve arrangement for use with a hydraulic accumulator

1986-10-24

1987-11-17

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

91 33, 91452, 60413, 13759616, 251 3001, 251 44, F16K 31124, F16K 3102

Patent

active

047069309

ABSTRACT:
A valve arrangement for connecting a hydraulic machine, such as a pump or a motor, with a pressure accumulator in which a conventional manual shutoff valve is replaced by a leak-proof pressure controlled valve whose operating pressure signal is supplied by a shuttle valve from that one of two ports of the pressure controlled valve at which the higher pressure prevails at a given time. The pressure controlled valve is supplied with fluid under pressure by way of a leak-proof remote controlled slide valve.

REFERENCES:
patent: 2925984 (1960-02-01), Kowalski
patent: 3279484 (1966-10-01), Brinkel
patent: 3533434 (1970-10-01), Smith
patent: 3593741 (1971-07-01), Odenthal et al.
patent: 3693506 (1972-09-01), McMillen et al.
patent: 3980002 (1976-09-01), Jarman et al.
patent: 4070831 (1978-01-01), Rutz
patent: 4149565 (1979-04-01), Jennings et al.
patent: 4309021 (1982-01-01), Hafele
patent: 4340086 (1982-07-01), Hemm et al.
patent: 4463818 (1984-08-01), Sonneborn

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