发明名称 |
HYDROSTATIC CIRCUIT LOCK VALVE COMPONENTS, CIRCUITS, SYSTEMS, AND METHOD |
摘要 |
Methods and systems for operating a cylinder lock valve to control fluid flow to a hydraulic cylinder operating a drilling rig sub-system. The lock valve 1) allows fluid flow through the valve if pressure on a main and pilot area overcomes a closing spring force on the valve, or 2) blocks flow through the valve if a loss in charge pressure in the main and pilot area falls below the closing spring force on the valve.
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申请公布号 |
US2011023477(A1) |
申请公布日期 |
2011.02.03 |
申请号 |
US20100764388 |
申请日期 |
2010.04.21 |
申请人 |
ATLAS COPCO DRILLING SOLUTIONS, LLC. |
发明人 |
SKOOG NEIL |
分类号 |
F15B13/01;F15B21/00;F16K31/12 |
主分类号 |
F15B13/01 |
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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