Flow control and accumulator charging valve

Details Flow control and accumulator charging valve Flow control and accumulator charging valve

1979-07-26

1982-06-01

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

137118, 60418, G05D 1500

Patent

active

043322700

ABSTRACT:
The valve device disclosed includes first, second and third user ports. A pressure accumulator connects with the first user port. With the accumulator fully charged, a pressure port connected to a pump communicates with the second user port. With the accumulator evacuated, the pressure port communicates with the first user port. In the event of a fluid demand at the third user port connected to a closed-center user component, the pressure port will be connected to the third user port via a control valve.

REFERENCES:
patent: 3570519 (1971-03-01), Bianchetta
patent: 3886848 (1975-06-01), Budecker et al.
patent: 3911679 (1975-10-01), Matthews
patent: 4016895 (1977-04-01), Budecker
patent: 4084604 (1978-04-01), Budecker et al.
patent: 4130127 (1978-12-01), Budecker et al.

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