Seal assemblies for turbine engines and related methods

US11988096B2 · kind B2 · utility

Assignees

• General Electric Company · US
• General Electric Deutschland Holding GmbH · DE

Inventors

• Ravindra Shankar Ganiger · Kanchinakote, IN
• Neelesh Nandkumar Sarawate · Pleasanton, US
• Rahul Anil Bidkar · Niskayuna, US
• Narendra Anand Hardikar · Kanchinakote, IN
• Kevin Randall McManus · Kyles, US
• Steven Douglas Johnson · Milford, US
• Prateek Jalan · Bengaluru, IN
• Antonio Guijarro Valencia · Munich, DE
• Julius John Montgomery · Mason, US
• Rodrigo Rodriguez Erdmenger · Munich, DE
• Jose Maria Rey Villazon · Ismaning, DE

Key dates

• Filing date: Jun 16, 2022
• Grant date: May 21, 2024
• Expiry date: Jun 16, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2260/38
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

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.