发明名称 LABYRINTH SEAL AND ROTARY MACHINE EQUIPPED THEREWITH
摘要 <P>PROBLEM TO BE SOLVED: To provide a labyrinth seal and a rotary machine equipped therewith capable of attaching a seal member to a rotary shaft without detaching a portion with a larger radial dimension from the rotary shaft even if the portion is joined to the rotary shaft, and capable of properly carrying out sealing by securing a minute clearance without causing seizure not only in a large or medium rotary machine, but even in a small or subminiature rotary machine. Ž<P>SOLUTION: The labyrinth seal includes a seal member 9 having an inner circumference face 11c surrounding the rotary shaft 5 and formed with a labyrinth structure on the inner circumference face 13, and a ring like member 13 surrounding and supporting an outer circumference face 15 of the seal member 9. The seal member 9 is divided into a first divided part 9a and a second divided part 9b respectively having a substantially half circumference portion of the inner circumference face 13, and the ring like member 13 can be attached from an axial direction of the rotary shaft 5 with respect to the outer circumference face 15 of the seal member 9 surrounding the rotary shaft 5. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010014230(A) 申请公布日期 2010.01.21
申请号 JP20080175958 申请日期 2008.07.04
申请人 IHI CORP 发明人 ISOMURA KOSUKE
分类号 F16J15/447;F01D11/02;F01D25/00;F04D29/10 主分类号 F16J15/447
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