Energy-conserving regenerative-flow valves for hydraulic servomo

Details Energy-conserving regenerative-flow valves for hydraulic servomo Energy-conserving regenerative-flow valves for hydraulic servomo

1986-01-31

1989-06-20

Garrett, Robert E.

Motors: expansible chamber type

With motive fluid valve

Inlet fluid supplemented by controlled fluid pressurized in...

91437, 91459, 13762569, F15B 1102, F15B 1120

Patent

active

048401110

ABSTRACT:
An improved energy-conserving servoactuator has at least one valve operatively associated with a double-acting fluid-powered actuator. When a load is applied to the actuator, the pressure in one actuator chamber will be greater than in the other. If the load is "opposing" with respect to the desired direction of actuator movement, fluid is supplied to the higher pressure chamber and is permitted to flow from the lower pressure chamber. However, if the load is "aiding" with respect to the desired direction of actuator movement, fluid in the higher pressure chamber is permitted to flow into the lower pressure chamber without drawing fresh fluid from the source.

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