Load responsive fluid control valves

Details Load responsive fluid control valves Load responsive fluid control valves

F - Mech Eng,Light,Heat,Weapons

15

B

137/88

F15B 13/08 (2006.01) F16K 11/00 (2006.01)

Patent

CA 1051746

ABSTRACT OF THE DISCLOSURE A load responsive direction and flow control valve for use in fluid power load responsive system. The valve maintains a selected constant flow level for control of both positive and negative loads, irrespective of the change in the load magnitude or change in the fluid pressure, supplied to the valve. When controlling positive or negative loads the valve maintains a constant pressure differential across a flow control metering orifice utilizing a single control slide member, first by throttl- ing fluid entering the inlet chamber and then by throttling the fluid leaving the outlet chamber. The valve may be used with fixed displacement pumps, fixed displacement pumps equipped with differ- ential pressure relief valves, with variable pumps equipped with pressure compensators and variable pumps equipped with differential pressure compensators.

271044

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