公开(公告)号：US20230279781A1

公开(公告)日：2023-09-07

申请号：US17841847

申请日：2022-06-16

Applicant: General Electric Company ,  General Electric Deutschland Holding GmbH

Inventor： Ravindra Shankar Ganiger ,  Neelesh Nandkumar Sarawate ,  Rahul Anil Bidkar ,  Narendra Anand Hardikar ,  Kevin Randall McManus ,  Steven Douglas Johnson ,  Prateek Jalan ,  Antonio Guijarro Valencia ,  Julius John Montgomery ,  Rodrigo Rodriguez Erdmenger ,  Jose Maria Rey Villazon

IPC: F01D11/00 ,  F01D11/02

CPC classification number: F01D11/003 ,  F01D11/02 ,  F01D11/001 ,  F05D2240/56 ,  F05D2220/323

Abstract: A seal assembly for a rotary machine, such as a turbine engine, may include a seal rotor comprising a rotor face, a seal slider comprising a slider face, a seal stator, wherein the seal slider is slidably coupled to the seal stator, and wherein the slider face and the rotor face define a primary seal. The seal slider may be configured to slidably engage and retract the slider face with respect to the rotor face. The seal assembly may further include a secondary seal disposed between the seal slider and the seal stator. The secondary seal may be configured to compress and rebound and/or to expand and rebound, over at least a portion of a range of motion of the seal slider.