Invention Grant
- Patent Title: Mid-turbine frame assembly
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Application No.: US16426707Application Date: 2019-05-30
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Publication No.: US10961870B2Publication Date: 2021-03-30
- Inventor: Joshua Daniel Winn , Alexander Broulidakis , Paul K. Sanchez , Anthony P Cherolis , Joseph J. Sedor , Christopher Treat
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D25/28
- IPC: F01D25/28 ; F01D5/02 ; F01D25/26 ; F01D25/12 ; F01D9/06 ; F01D25/16 ; F02C7/12

Abstract:
A method of cooling a portion of a gas turbine engine includes positioning a tie rod relative to an inner frame case. The tie rod includes a bushing opening and the inner frame case includes a fastener opening. A fastener is secured through the fastener opening in the inner frame case to a threaded bushing located in the bushing opening. The threaded bushing includes a distal end that forms a clearance gap with the inner frame case. Heat is transferred from the fastener through the threaded bushing to prevent the fastener from creeping.
Public/Granted literature
- US20190316491A1 MID-TURBINE FRAME ASSEMBLY Public/Granted day:2019-10-17
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