US 11,988,096 B2
Seal assemblies for turbine engines and related methods
Ravindra Shankar Ganiger, Bangalore (IN); Neelesh Nandkumar Sarawate, Niskayuna, NY (US); Rahul Anil Bidkar, Clifton Park, NY (US); Narendra Anand Hardikar, Bangalore (IN); Kevin Randall McManus, Liberty Township, OH (US); Steven Douglas Johnson, Milford, OH (US); Prateek Jalan, Bangalore (IN); Antonio Guijarro Valencia, Munich (DE); Julius John Montgomery, Mason, OH (US); Rodrigo Rodriguez Erdmenger, Munich (DE); and Jose Maria Rey Villazon, Ismaning (DE)
Assigned to General Electric Company, Schenectady, NY (US); and General Electric Deutschland Holding GmbH, Frankfurt (DE)
Filed by General Electric Company, Schenectady, NY (US); and General Electric Deutschland Holding GmbH, Frankfurt (DE)
Filed on Jun. 16, 2022, as Appl. No. 17/841,847.
Claims priority of application No. 202211011484 (IN), filed on Mar. 3, 2022.
Prior Publication US 2023/0279781 A1, Sep. 7, 2023
Int. Cl. F01D 11/00 (2006.01); F01D 11/02 (2006.01)
CPC F01D 11/003 (2013.01) [F01D 11/001 (2013.01); F01D 11/02 (2013.01); F05D 2220/323 (2013.01); F05D 2240/56 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A seal assembly for a rotary machine, the seal assembly comprising:
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 seal slider is configured to slidably engage and retract the slider face with respect to the rotor face, the slider face and the rotor face defining a primary seal, wherein the seal stator and the seal slider form a secondary seal plenum;
a secondary seal disposed within the secondary seal plenum between the seal slider and the seal stator, wherein the secondary seal comprises a finger seal, wherein the finger seal is coupled to at least one of the seal slider and the seal stator, wherein the secondary seal is configured to compress and rebound or to expand and rebound and to form a seal against at least one of the seal slider and the seal stator, over at least a portion of a range of motion of the seal slider; and
one or more rebound dampers disposed between the seal slider and the seal stator.