Patent ID: 6761027
Filing Date: 2004-07-13
Classification: E02F,F15B

Abstract:
A fluid system, comprising:a source of pressurized fluid; a first actuator in operable communication with the source of pressurized fluid, the first actuator including a first end port and a second end port; a first control valve operable to control fluid communication to and from the first actuator, the first control valve being structured and arranged to combine fluid flow from the second end port with fluid flow from the source of pressurized fluid when providing a supply of fluid to the first end port, the first control valve including a first signal port in fluid communication with the supply of fluid to the first actuator, the first signal port being configured to output 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 signal port in fluid communication with a supply of fluid to the second actuator, the second signal port being configured to output a second signal pressure; a resolver in fluid communication with the first signal port and the second signal port, the resolver being structured and arranged to output a resolved signal pressure equal to a greater of the first signal pressure and the second signal pressure; a compensator in fluid communication with the first control valve and the first actuator, the compensator structured and arranged to control fluid flow from the first control valve to the first actuator based on the resolved signal pressure; and a duplicating valve in fluid communication with the source of pressurized fluid, the resolved signal pressure, and the compensator.