公开(公告)号：US09045994B2

公开(公告)日：2015-06-02

申请号：US13665431

申请日：2012-10-31

Applicant: General Electric Company

Inventor： Rahul Anil Bidkar ,  Matthew Michael Langenderfer ,  Hrishikesh Vishvas Deo ,  Azam Mihir Thatte

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

CPC classification number: F01D11/02 ,  F01D11/025 ,  F05D2240/55 ,  F16J15/442 ,  Y10T29/49826

Abstract: 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.

Abstract translation: 提供了一种用于旋转机器的密封组件。 密封组件包括沿周向设置在固定壳体和转子周围的多个密封装置段。 每个密封装置段包括定子接口元件。 密封装置段还包括具有面向转子的一个或多个迷宫齿和承载表面区域的鞋板，其中，鞋板允许高压流体到达最前面的迷宫齿的上游部分，而低压流体 最后迷宫齿的下游部分。 密封装置段还包括在径向外端处与定子界面元件接触并在径向内端上与鞋板的升高的鼻部接触的次级密封件; 以及多个波纹管弹簧或挠曲件，其附接到鞋板和定子接口元件。

公开(公告)号：US20140119912A1

公开(公告)日：2014-05-01

申请号：US13665431

申请日：2012-10-31

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Rahul Anil Bidkar ,  Matthew Michael Langenderfer ,  Hrishikesh Vishvas Deo ,  Azam Mihir Thatte

IPC: F01D11/02 ,  F03B11/00 ,  B23P11/00

CPC classification number: F01D11/02 ,  F01D11/025 ,  F05D2240/55 ,  F16J15/442 ,  Y10T29/49826

Abstract: 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.

Abstract translation: 提供了一种用于旋转机器的密封组件。 密封组件包括沿周向设置在固定壳体和转子周围的多个密封装置段。 每个密封装置段包括定子接口元件。 密封装置段还包括具有面向转子的一个或多个迷宫齿和承载表面区域的鞋板，其中，鞋板允许高压流体到达最前面的迷宫齿的上游部分，而低压流体 最后迷宫齿的下游部分。 密封装置段还包括在径向外端处与定子界面元件接触并在径向内端上与鞋板的升高的鼻部接触的次级密封件; 以及多个波纹管弹簧或挠曲件，其附接到鞋板和定子接口元件。