发明授权
- 专利标题: Hydraulic fluid actuator with metal to metal seals
- 专利标题(中): 具有金属到金属密封的液压油致动器
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申请号: US129177申请日: 1998-07-17
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公开(公告)号: US6098714A公开(公告)日: 2000-08-08
- 发明人: Thomas M. Deaton
- 申请人: Thomas M. Deaton
- 申请人地址: TX Dallas
- 专利权人: Halliburton Energy Services, Inc.
- 当前专利权人: Halliburton Energy Services, Inc.
- 当前专利权人地址: TX Dallas
- 主分类号: E21B23/04
- IPC分类号: E21B23/04 ; E21B34/10 ; F15B15/14
摘要:
An improved fluid actuator is provided. The fluid actuator (25) comprises a variable volume fluid chamber (124). A first tube (162) is fixed within the variable volume fluid chamber (124). The first tube (162) has a first sealing surface (142) and a second sealing surface (144). A piston (100) is slidably disposed within the variable volume fluid chamber (124) and slidably movable over the first tube (162) between a first position and a second position. The piston (100) comprises a first sealing surface (140) and a second sealing surface (146). The piston first sealing surface (140) and the first tube first sealing surface (142) cooperate to form a seal between the piston (100) and the first tube (162) when the piston (100) is in the first position. The piston second sealing surface (146) and the first tube second sealing surface (144) cooperate to form a seal between the piston (100) and the first tube (162) when the piston (100) is in the second position.
公开/授权文献
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