Electrohydraulic valve system

Details Electrohydraulic valve system Electrohydraulic valve system

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Patent

CA 1202100

ELECTROHYDRAULIC VALVE SYSTEM Abstract of the Disclosure A control system for controlling a double-acting cylinder includes four pilot-operated, proportional-type poppet valves for controlling fluid flow between the cylinder, a pump and a reservoir. Four solenoid-controlled pilot valves operate the poppet valves in response to error signals generated by a control circuit. The control circuit receives a cylinder position feedback signal and an operator-generated command signal. The control circuit provides for float, shutdown, variable deadband and pressure adjustment operation.

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