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.