Invention Grant
- Patent Title: Tie rod connection for mid-turbine frame
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Application No.: US15107530Application Date: 2015-01-21
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Publication No.: US10233781B2Publication Date: 2019-03-19
- Inventor: Tuan David Vo , Alan Lees
- 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.
- International Application: PCT/US2015/012128 WO 20150121
- International Announcement: WO2015/156882 WO 20151015
- Main IPC: F01D25/24
- IPC: F01D25/24 ; F01D25/16 ; F01D5/06 ; F02D9/02 ; F01D9/02 ; F01D9/06

Abstract:
A mid-turbine frame for use in a gas turbine engine comprises at least one vane extending between a vane inner platform and a vane outer platform, and an inner case radially inward of the inner platform. A plurality of tie rods extend from a platform radially inward of the inner case to a radially outer location which is secured by a mount member. The tie rods are secured in the inner case by a forward bolt, and at least one rear bolt, with the forward bolt extending along an axis which is non-parallel to a center axis of the inner case. A gas turbine engine and a method for assembling a mid-turbine frame are also disclosed.
Public/Granted literature
- US20160333739A1 TIE ROD CONNECTION FOR MID-TURBINE FRAME Public/Granted day:2016-11-17
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