发明名称 |
AERODYNAMIC SEALS FOR ROTARY MACHINE |
摘要 |
An aerodynamic seal assembly for a rotary machine is provided. The assembly includes multiple sealing device segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward-shoe section and an aft-shoe section having multiple labyrinth teeth therebetween facing the rotor. The shoe plate is configured to allow a high pressure fluid to a front portion of the plurality of the labyrinth teeth and a low pressure fluid behind the plurality of the labyrinth teeth and further configured to generate an aerodynamic force between the shoe plate and the rotor. The sealing device segment also includes multiple bellow springs or flexures connected to the shoe plate and to a top interface element, wherein the multiple bellow springs or flexures are configured to allow the high pressure fluid to occupy a forward cavity and the low pressure fluid to occupy an aft cavity. Further, the sealing device segments include a secondary seal attached to the top interface element at one first end and positioned about the multiple bellow springs or flexures and the shoe plate at one second end. |
申请公布号 |
US2014008871(A1) |
申请公布日期 |
2014.01.09 |
申请号 |
US201213542780 |
申请日期 |
2012.07.06 |
申请人 |
BIDKAR RAHUL ANIL;CIRRI MASSIMILIANO;THATTE AZAM MIHIR;WILLIAMS JOHN ROBERT;GENERAL ELECTRIC COMPANY |
发明人 |
BIDKAR RAHUL ANIL;CIRRI MASSIMILIANO;THATTE AZAM MIHIR;WILLIAMS JOHN ROBERT |
分类号 |
F16J15/447 |
主分类号 |
F16J15/447 |
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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