发明名称 |
Electrohydraulic valve system |
摘要 |
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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申请公布号 |
US4437385(A) |
申请公布日期 |
1984.03.20 |
申请号 |
US19820364373 |
申请日期 |
1982.04.01 |
申请人 |
DEERE & COMPANY |
发明人 |
KRAMER, KENNETH D.;FLETCHER, EDWARD H. |
分类号 |
F15B9/09;F15B9/03;F15B11/00;F15B13/043;(IPC1-7):F15B13/16 |
主分类号 |
F15B9/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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