发明名称 |
Monitoring a solenoid of a directional control valve |
摘要 |
A method of monitoring a solenoid (1) of a directional control valve (DCV) associated with a subsea control module (6) in a subsea hydrocarbon production system is disclosed. A voltage is applied across a coil of the solenoid, for moving the armature (4) thereof, and a current through the coil is sensed to produce an indication of if and when the armature is moved.
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申请公布号 |
EP2053289(A2) |
申请公布日期 |
2009.04.29 |
申请号 |
EP20080166219 |
申请日期 |
2008.10.09 |
申请人 |
VETCO GRAY CONTROLS LIMITED |
发明人 |
DAVIDS, JULIAN R. |
分类号 |
E21B34/06;F16K37/00;H01F7/18 |
主分类号 |
E21B34/06 |
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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