发明授权
US07520333B2 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
-
申请号: US11558812申请日: 2006-11-10
-
公开(公告)号: US07520333B2公开(公告)日: 2009-04-21
- 发明人: Dewayne M. Turner , Richard J. Ross , Kenneth E. Rozek , Todd Chretien
- 申请人: Dewayne M. Turner , Richard J. Ross , Kenneth E. Rozek , Todd Chretien
- 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 is disclosed that comprises a bypass relief 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 bypass relief may also provide a valve control fluid circulation function to filter or otherwise manipulate the control fluid. Also disclosed are flow port alignment systems that maintain the valve flow ports in predetermined relationships.
公开/授权文献
信息查询