公开(公告)号：US20140225326A1

公开(公告)日：2014-08-14

申请号：US14253307

申请日：2014-04-15

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Mehmet Demiroglu ,  Michael Dennis Mack ,  Guoqiang Lu

IPC: F16J15/32 ,  F01D11/00

CPC classification number: F16J15/3288 ,  F01D11/00 ,  F01D11/003 ,  F05D2240/56

Abstract: The present application provides for a brush seal system for use about a rotor of a rotary machine. The brush seal system may include a number of brush seal segments, with each of the brush seal segments having a number of bristles, and one or more of the brush seal segments including an elliptical profile so as to vary a clearance between the brush seal segments and the rotor.

Abstract translation: 本申请提供了一种用于旋转机器的转子的刷密封系统。 刷密封系统可以包括多个刷密封段，其中每个刷密封段具有多个刷毛，并且一个或多个刷密封段包括椭圆形轮廓，以便改变刷密封段之间的间隙 和转子。

公开(公告)号：US20130069317A1

公开(公告)日：2013-03-21

申请号：US13675448

申请日：2012-11-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Xiaoqing Zheng ,  William Edward Adis ,  Bernard Arthur Couture, JR. ,  Michael Dennis Mack

IPC: F16J15/16

CPC classification number: F16J15/16 ,  F01D11/003 ,  F05D2240/56 ,  F16J15/3288

Abstract: A brush seal and brush seal segment for use in a rotary device are provided. In one embodiment, the invention provides a brush seal comprising: a plurality of brush seal segments, each segment including: an arcuate fence; an arcuate backplate substantially circumferentially coextensive with the arcuate fence, the arcuate backplate including a first end and a second end; and a plurality of brush seal bristles between the arcuate backplate and the arcuate fence, the plurality of brush seal bristles being angled with respect to a radial axis of the arcuate backplate and at least one of the first end and the second end of the arcuate backplate; and a static member to which at least one of the plurality of brush seal segments is affixed.

Abstract translation: 提供用于旋转装置的刷密封和刷密封段。 在一个实施例中，本发明提供了一种刷子密封件，其包括：多个刷子密封段，每个段包括：弓形围栏; 基本上与弓形围栏共同延伸的弓形背板，该弧形背板包括第一端和第二端; 以及在所述弓形背板和所述弧形挡板之间的多个刷密封刷毛，所述多个刷密封刷毛相对于所述弧形背板的径向轴线成角度，并且所述弓形背板的第一端和第二端中的至少一个 ; 以及固定所述多个刷子密封段中的至少一个的静止部件。

公开(公告)号：US20180051582A1

公开(公告)日：2018-02-22

申请号：US15237692

申请日：2016-08-16

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Gene David Palmer ,  Michael Dennis Mack ,  David Bruce Knorr ,  Jason Lyn Bowers

IPC: F01D11/12 ,  F01D5/02 ,  F01D9/02

CPC classification number: F01D11/12 ,  F01D5/02 ,  F01D9/02 ,  F05D2220/31 ,  F05D2220/32 ,  F05D2240/56 ,  F05D2250/232 ,  F05D2260/30 ,  F16J15/3288

Abstract: A brush seal has bristles with a free end sealing against a radially inward surface of a stationary component. The bristles are angled axially 15 degrees to 70 degrees, and circumferentially at an angle that is less than the axial angle. A retaining plate extends radially outward from the rotating component, and supports the bristles from centrifugal loading in an operative state of a turbomachine. A bristle shield extends radially outward along a length of the bristles, such that the bristle shield is configured to shield the bristles from flow during an operative state of the turbomachine. The bristles are located between the retaining plate and the bristle shield. A circumferential groove has a downstream side and an upstream side, and a side plate is attached to the upstream side. The fixed end of the bristles is attached to the upstream side of the groove by the side plate.

公开(公告)号：US20170089215A1

公开(公告)日：2017-03-30

申请号：US14869538

申请日：2015-09-29

Applicant: General Electric Company

Inventor： Xiaoqing Zheng ,  Michael Dennis Mack ,  Neelesh Nandkumar Sarawate ,  Deepak Trivedi

IPC: F01D11/12 ,  F01D5/02

CPC classification number: F01D11/127 ,  F01D5/02 ,  F01D11/001 ,  F01D11/025 ,  F05D2220/30 ,  F05D2220/31 ,  F05D2230/60 ,  F05D2240/56 ,  F05D2260/30 ,  F16J15/164 ,  F16J15/3288

Abstract: A seal for a rotary machine includes a flexible element extending circumferentially about a rotor and extending generally radially from a first end to a free second end. The flexible element is coupled proximate the first end for rotation with the rotor. The flexible element extends at substantially a first angle between at least an intermediate portion of the flexible element and the free second end when the rotor is operating at less than a critical speed, such that a clearance gap is defined between the free second end and a stationary portion. The seal also includes a retaining plate having a stop that orients the flexible element at a second angle proximate the free second end when the rotor is operating at equal to or greater than the critical speed, such that the flexible element forms a dynamic seal between the rotor and the stationary portion.