发明授权
US07845416B2 Hydraulic sleeve valve with position indication, alignment, and bypass
有权
带位置指示，对位和旁路的液压套筒阀
- 专利标题： Hydraulic sleeve valve with position indication, alignment, and bypass
- 专利标题（中）： 带位置指示，对位和旁路的液压套筒阀
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申请号： US12352232申请日： 2009-01-12
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公开(公告)号： US07845416B2公开(公告)日： 2010-12-07
- 发明人: Dewayne M. Turner , Richard J. Ross
- 申请人： Dewayne M. Turner , Richard J. Ross
- 申请人地址： US TX Houston
- 专利权人： BJ Services Company
- 当前专利权人： BJ Services Company
- 当前专利权人地址： US TX Houston
- 代理机构： Zarian Midgley & Johnson PLLC
- 主分类号： E21B43/00
- IPC分类号： E21B43/00
摘要：
A hydraulic sleeve valve that includes a valve position indication system that provides an indication that the valve has reached a predetermined position, such as, for example, the fully opened or fully closed condition. The hydraulic sleeve valve may include a bypass relief system and may also provide a valve control fluid circulation function to filter or otherwise manipulate the control fluid.
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