Invention Grant
- Patent Title: Anti-coning aspirating face seal
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Application No.: US17143115Application Date: 2021-01-06
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Publication No.: US11624290B2Publication Date: 2023-04-11
- Inventor: Nathan Evan McCurdy Gibson , Christopher Jon Potokar , Hariharan Manickavasagam Sarojini , Arnab Sen , Bikramjit Chatterjee
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Klarquist Sparkman, LLP
- Priority: IN201641013072 20160414
- Main IPC: F01D11/02
- IPC: F01D11/02

Abstract:
An aspirating face seal between high and low pressure regions of a turbomachine at a juncture between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces. Primary and starter seal teeth and optional deflector seal tooth are mounted on seal teeth carrier on rotatable member. Non-rotatable face surface is mounted on an annular slider on the non-rotatable member. A pull-off biasing means urges the annular slider away from the rotatable member and the non-rotatable face surface away from the rotatable surface. A secondary seal is in sealing engagement with the annular slider in the low pressure region and the pull-off biasing means is located radially outwardly of the annular slider in the high pressure region. Biasing means may include coil springs within spring chambers of circumferentially spaced cartridges. Tongues extend inwardly from spring chambers into grooves in slider.
Public/Granted literature
- US20210148243A1 ANTI-CONING ASPIRATING FACE SEAL Public/Granted day:2021-05-20
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