Patent ID: 6782697
Filing Date: 2004-08-31
Classification: F15B

Abstract:
A fluid system, comprising:a source of pressurized fluid; a first actuator in operable communication with the source of pressurized fluid; a first control valve operable to control fluid communication to and from the first actuator, the first control valve including a first meter-in orifice; a first pressure compensating valve in fluid communication with the first control valve and the first actuator; a first meter-in passage directing fluid flow from the first meter-in orifice to the first pressure compensating valve; a first signal conduit fluidly connected to the first meter-in passage between the first control valve and the first pressure compensating valve, the first signal conduit carrying a first signal pressure; a second actuator in operable communication with the source of pressurized fluid; a second control valve operable to control fluid communication to and from the second actuator, the second control valve including a second meter-in orifice; a second pressure compensating valve in fluid communication with the second control valve and the second actuator; and a second meter-in passage directing fluid flow from the second meter-in orifice to the second pressure compensating valve; a second signal conduit fluidly connected to the second meter-in passage between the second control valve and the second pressure compensating valve, the second signal conduit carrying a second signal pressure, wherein a greater of the first signal pressure and the second signal pressure is used to generate a control signal pressure, and the control signal pressure is in fluid communication with the first pressure compensating valve and the second pressure compensating valve.