发明名称 |
ROTARY MACHINE WITH SEAL |
摘要 |
A so-called comb-type labyrinth seal (S1) is provided at a gap part between the outer circumferential part of a rotor blade (2) on the rotary side and a labyrinth packing (9) on the stationary side. The seal (S1) has a plurality of seal fins (F1, F2) provided oppositely on the opposite sides of the gap part. Since these seal fins (F1, F2) are arranged in the axial direction at a nonconstant pitch, clearance between the opposite seal fins (F1, F2) is not decreased even upon occurrence of relative positional shift in the axial direction between a casing provided with the labyrinth packing (9) and a rotor (1) due to difference of thermal expansion.
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申请公布号 |
WO02077500(A1) |
申请公布日期 |
2002.10.03 |
申请号 |
WO2002JP01870 |
申请日期 |
2002.02.28 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;UCHIDA, TATSURO;KIKUCHI, MASATAKA |
发明人 |
UCHIDA, TATSURO;KIKUCHI, MASATAKA |
分类号 |
F01D11/08;F02C7/28;F16J15/447;(IPC1-7):F16J15/447 |
主分类号 |
F01D11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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