发明名称 |
FILM RIDING AERODYNAMIC SEALS FOR ROTARY MACHINES |
摘要 |
A seal assembly for a rotary machine is provided. The seal assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the sealing device segments includes a stator interface element. The sealing device segment also includes a shoe plate having one or more labyrinth teeth facing the rotor and a load-bearing surface region, wherein the shoe plate allows a high pressure fluid to an upstream portion of the forwardmost labyrinth tooth and a low pressure fluid to a downstream portion of the aftmost labyrinth tooth. The sealing device segment further includes a secondary seal in contact with the stator interface element at a radially outer end and in contact with an elevated nose of the shoe plate on a radially inner end; and multiple bellow springs or flexures attached to the shoe plate and to the stator interface element. |
申请公布号 |
US2014119912(A1) |
申请公布日期 |
2014.05.01 |
申请号 |
US201213665431 |
申请日期 |
2012.10.31 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BIDKAR RAHUL ANIL;LANGENDERFER MATTHEW MICHAEL;DEO HRISHIKESH VISHVAS;THATTE AZAM MIHIR |
分类号 |
F01D11/02;B23P11/00;F03B11/00 |
主分类号 |
F01D11/02 |
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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