发明授权
- 专利标题: Leaf seal arrangement
- 专利标题(中): 叶密封布置
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申请号: US12259934申请日: 2008-10-28
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公开(公告)号: US08162323B2公开(公告)日: 2012-04-24
- 发明人: Richard Nicholson , Terence Valentine Jones
- 申请人: Richard Nicholson , Terence Valentine Jones
- 申请人地址: GB London
- 专利权人: Rolls-Royce PLC
- 当前专利权人: Rolls-Royce PLC
- 当前专利权人地址: GB London
- 代理机构: Oliff & Berridge, PLC
- 优先权: GB0417613.7 20040807
- 主分类号: F16J15/447
- IPC分类号: F16J15/447
摘要:
A leaf seal arrangement is provided in which within a housing there are edge portions to inter associate with non parallel chamfer edges in leaf seal elements. In such circumstances, deflection of the leaf seal elements in an outward direction or inward direction relative to a rotating shaft creates variation in a control gap X, XX between the edges and the chamfer edge. Such increase or decrease in the control gap X, XX adjusts the aerodynamic radial force that is presented to the leaf seal elements whereby those elements can be more accurately maintained at a desired leaf position for optimizing leakage while achieving better wear resistance performance.
公开/授权文献
- US20100025936A1 Leaf Seal Arrangement 公开/授权日:2010-02-04