Invention Grant
- Patent Title: Bearing outer race retention during high load events
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Application No.: US14948917Application Date: 2015-11-23
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Publication No.: US09869205B2Publication Date: 2018-01-16
- Inventor: Ravindra Shankar Ganiger , Bruce Alan Carter , Nitin Deepak Rupnar , Charles Andrew Corman
- 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: General Electric Company
- Agent Pamela A. Kachur
- Main IPC: F01D25/16
- IPC: F01D25/16 ; F16C35/04 ; F16C35/067 ; F16C27/04

Abstract:
A housing for retention of the outer race of a bearing of a gas turbine engine includes an arrangement of spring fingers that yields a lightweight housing capable of withstanding very high radial loads combined with very high torsional windup and axial thrust load. Controlled circumferential gaps on both sides of each spring finger limit the deflection and self-arrest the distortion of the housing. An axial gap is created on the aft end by a portion of the spring finger beam structure that opposes an axial face of the housing and limits the axial distortion. A radial gap created between interface hardware of the housing and the inner retention housing also acts to retain the spring finger housing under load in a radial direction.
Public/Granted literature
- US20170145855A1 BEARING OUTER RACE RETENTION DURING HIGH LOAD EVENTS Public/Granted day:2017-05-25
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