F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/66
F15B 13/00 (2006.01) F15B 11/16 (2006.01)
Patent
CA 1115623
FLUID CONTROL VALVE SYSTEM ABSTRACT OF THE DISCLOSURE Fluid control valve apparatus is provided having a directional control valve for metering passage of fluid from a supply passage to a feeder passage for first actuator. A pressure compensating valve is provided for regulating flow through the directional control valve and for delivering excess fluid to a compensating valve output port for power operation of a second actuator. A main relief valve is connected to the first actuator feeder passage downstream from a metering portion of the directional control valve for sensing a first actuator stall condition. The main relief valve, when actuated, delivers fluid to a tank from a supply passage, through the metering portion of the directional control valve, and a relief passage including the main relief valve upon sensing an overload condi- tion. The rate of flow through the relief passage is subject to limitation only by the metering portion of the direction control valve.
334992
Borden Ladner Gervais Llp
General Signal Corporation
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