发明名称 |
Proportional electro-hydraulic pressure control valve |
摘要 |
A proportional electro-hydraulic pressure control valve incorporates a pressure sensor in its valve body and the hydraulic fluid pressure in a pressure detecting fluid path provided in the valve body is delivered as an electric signal output by the pressure sensor. The pressure detecting fluid path is connected to a hydraulic fluid inlet port directly or through a restrictor or alternately the fluid path is connected to a pressure detecting port separated from both of the hydraulic fluid inlet port and a hydraulic fluid outlet port. The electric signal output from the pressure sensor is utilized to provide a numerical display of the controlled pressure or to effect the feedback control of a solenoid drive current through a closed loop.
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申请公布号 |
US4796661(A) |
申请公布日期 |
1989.01.10 |
申请号 |
US19860898041 |
申请日期 |
1986.08.19 |
申请人 |
YUKEN KOGYO KABUSHIKI KAISHA |
发明人 |
HISHINUMA, YASUO;ITO, HIROSHI |
分类号 |
G05D16/20;(IPC1-7):F16K31/02 |
主分类号 |
G05D16/20 |
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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