- Patent Title: Mid-turbine frame stator with repairable bushing and retention pin
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Application No.: US14853530Application Date: 2015-09-14
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Publication No.: US10408088B2Publication Date: 2019-09-10
- Inventor: Steven D. Porter , John T. Ols
- 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: Snell & Wilmer, L.L.P.
- Main IPC: F01D25/24
- IPC: F01D25/24 ; F01D9/04 ; B23P6/00

Abstract:
A gas-turbine engine is provided comprising a high-pressure turbine, a low-pressure turbine aft of the high-pressure turbine, and a housing around the low-pressure turbine and the high-pressure turbine. A stator may be disposed between the low-pressure turbine and the high-pressure turbine with a boss formed on the stator. A bushing may be retained in the boss with a pin coupled to the housing and partially within the bushing. A method of mounting a full-ring stator is also provided, the method including the steps of inserting a bushing into a boss of the full-ring stator by press fitting, and inserting a pin into the bushing of the full-ring stator.
Public/Granted literature
- US20160201514A1 MID-TURBINE FRAME STATOR WITH REPAIRABLE BUSHING AND RETENTION PIN Public/Granted day:2016-07-14
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