发明授权
- 专利标题： Multi-clearance labyrinth seal design and related process
- 专利标题（中）： 多间隙迷宫密封设计及相关工艺
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申请号： US09595517申请日： 2000-06-16
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公开(公告)号： US06394459B1公开(公告)日： 2002-05-28
- 发明人: Mark Arne Florin
- 申请人： Mark Arne Florin
- 主分类号： F16J15447
- IPC分类号： F16J15447
摘要：
A packing ring seal assembly for use in a steam turbine for minimizing leakage flow between stationary and rotating steam path parts includes a stationary annular seal ring having a plurality of axially spaced, annular sealing teeth extending in a radial inward direction and adapted to cooperate with sealing surfaces on a rotating component of the steam turbine, wherein radial clearance between the sealing teeth and the sealing surfaces varies by predetermined amounts.