发明授权
- 专利标题: Hydrodynamic bore seal
- 专利标题(中): 流体动力孔密封
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申请号: US12792162申请日: 2010-06-02
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公开(公告)号: US08740225B2公开(公告)日: 2014-06-03
- 发明人: Curtis Patterson , Alejandro Juan , Soheil Farshchian
- 申请人: Curtis Patterson , Alejandro Juan , Soheil Farshchian
- 申请人地址: CA Calgary, AB
- 专利权人: Exponential Technologies, Inc.
- 当前专利权人: Exponential Technologies, Inc.
- 当前专利权人地址: CA Calgary, AB
- 代理机构: Schacht Law Office, Inc.
- 代理商 Dwayne E. Rogge
- 主分类号: F16J15/447
- IPC分类号: F16J15/447
摘要:
The disclosed finger seals are designed to be operational under rotational velocity or a stationary condition. The contact surface of the finger seals is inclined in an axial direction. The rotational velocity of the bore does not affect the hydrodynamic lift and the finger seals can operate at any rotational speed, unlike prior finger seal where the hydrodynamic lift is generated by rotational velocity. Each finger seal is pressure balanced. The pressure chambers on the two sides of each finger seal are connected through the finger cutouts. The finger seal design is such that the fingers lift and move away from the bore surface in radial direction. In one form, each finger seal is designed with the specific required length to allow sufficient surface area for the hydrodynamic force such that the finger seals would be lifted from the bore surface at the design pressure.
公开/授权文献
- US20110133410A1 HYDRODYNAMIC BORE SEAL 公开/授权日:2011-06-09
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