Hydrostat systems containing coaxial multidirectional flow contr

Details Hydrostat systems containing coaxial multidirectional flow contr Hydrostat systems containing coaxial multidirectional flow contr

1974-10-31

1977-03-01

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

With means purging, cleaning or separating undesirables from...

137493, 210 13, F15B 1518, F16K 1726

Patent

active

040095720

ABSTRACT:
Hydrostat systems are provided containing a coaxial multidirectional flow control valve interposed between a pump and a hydraulic motor, to direct flow in one direction through one path and to direct flow in the opposite direction through another path, to provide a bypass function, such as to bypass a filter. The valves are space-saving, can be kept closed under low biasing forces, and can be made light in weight, affording a low-mass valve that can be moved in milliseconds from a closed to an open position. The valves can control not only different forward and reverse flow paths, but also a path for a bypass function such as relief flow through one of the forward and reverse flow paths. When two valves are used, unidirectional flow through can be achieved regardless of direction of flow in the fluid line.

REFERENCES:
patent: 3229816 (1966-01-01), Rosean

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