公开(公告)号：US09359908B2

公开(公告)日：2016-06-07

申请号：US14325452

申请日：2014-07-08

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Andrew Paul Giametta ,  Nathan Evan McCurdy Gibson ,  Nicolas Joseph Cleveland

IPC: F16J15/44 ,  F01D11/02 ,  F16J15/447

CPC classification number: F01D11/02 ,  F01D11/025 ,  F16J15/442 ,  F16J15/4478 ,  Y02T50/672

Abstract: An aerodynamic seal assembly for a rotary machine includes multiple sealing segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward load-bearing section and an aft load-bearing section configured to generate an aerodynamic force between the shoe plate and the rotor. The shoe plate includes at least one labyrinth teeth facing the rotor and positioned between the forward load-bearing section and the aft load-bearing section. The sealing segment also includes at least one spring connected to a pedestal located about midway of an axial length of the shoe plate and to a stator interface element. Further, the sealing segment includes a rigid segmented secondary seal attached to the stator interface element at one first end and in contact with the pedestal of the shoe plate at one second end.

Abstract translation: 用于旋转机器的空气动力学密封组件包括沿周向设置在固定壳体和转子上的多个密封段。 每个段包括具有前承载部分的鞋板和被构造成在鞋板和转子之间产生空气动力的后承重部分。 鞋板包括面向转子的至少一个迷宫齿，并位于前承载部分和后承重部分之间。 所述密封段还包括至少一个弹簧，所述至少一个弹簧连接到位于所述鞋板的轴向长度的大约中间的基座和定子接口元件。 此外，密封段包括在一个第一端处附接到定子界面元件并且在一个第二端处与鞋板的基座接触的刚性分段的次级密封件。

公开(公告)号：US20160010480A1

公开(公告)日：2016-01-14

申请号：US14325452

申请日：2014-07-08

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Andrew Paul Giametta ,  Nathan Evan McCurdy Gibson ,  Nicolas Joseph Cleveland

IPC: F01D11/02 ,  F16J15/447

CPC classification number: F01D11/02 ,  F01D11/025 ,  F16J15/442 ,  F16J15/4478 ,  Y02T50/672

Abstract: An aerodynamic seal assembly for a rotary machine includes multiple sealing segments disposed circumferentially intermediate to a stationary housing and a rotor. Each of the segments includes a shoe plate with a forward load-bearing section and an aft load-bearing section configured to generate an aerodynamic force between the shoe plate and the rotor. The shoe plate includes at least one labyrinth teeth facing the rotor and positioned between the forward load-bearing section and the aft load-bearing section. The sealing segment also includes at least one spring connected to a pedestal located about midway of an axial length of the shoe plate and to a stator interface element. Further, the sealing segment includes a rigid segmented secondary seal attached to the stator interface element at one first end and in contact with the pedestal of the shoe plate at one second end.

Abstract translation: 用于旋转机器的空气动力学密封组件包括沿周向设置在固定壳体和转子上的多个密封段。 每个段包括具有前承载部分的鞋板和被构造成在鞋板和转子之间产生空气动力的后承重部分。 鞋板包括面向转子的至少一个迷宫齿，并位于前承载部分和后承重部分之间。 所述密封段还包括至少一个弹簧，所述至少一个弹簧连接到位于所述鞋板的轴向长度的大约中间的基座和定子接口元件。 此外，密封段包括在一个第一端处附接到定子界面元件并且在一个第二端处与鞋板的基座接触的刚性分段的次级密封件。