Invention Application
- Patent Title: MID-TURBINE FRAME WITH FAIRING ATTACHMENT
- Patent Title (中): 中等涡轮机框架与公路附件
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Application No.: PCT/US2013/059195Application Date: 2013-09-11
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Publication No.: WO2014052007A1Publication Date: 2014-04-03
- Inventor: FARAH, Jorge, I. , BURT, Jonathan, P. , SANCHEZ, Paul, K. , PAREKH, Kalpendu, J. , JAKIEL, Jonathan J.
- Applicant: UNITED TECHNOLOGIES CORPORATION
- Applicant Address: One Financial Plaza Hartford, CT 06101 US
- Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee: UNITED TECHNOLOGIES CORPORATION
- Current Assignee Address: One Financial Plaza Hartford, CT 06101 US
- Agency: HULL, Michael, R.
- Priority: US61/707,425 20120928
- Main IPC: F02C7/20
- IPC: F02C7/20 ; F01D25/24 ; F02C3/073 ; F02C3/13
Abstract:
A mid-turbine frame (MTF) system for a gas turbine engine is disclosed. The MTF includes an inner case, an outer case and a fairing sandwiched between the inner and outer cases. The fairing includes an inner ring spaced apart from and coupled to an outer ring by a plurality of hollow struts. The hollow struts accommodate support rods that connect the inner case to the outer case. Further, the hollow struts act as turning vanes for turning the flow of gases passing from a high pressure turbine (HPT) to a low pressure turbine (LPT) for purposes of providing the correct incidence angle to the first vane of the LPT. The outer ring of the fairing includes a plurality of bosses which receive attachment pins that pass through the outer case for correctly locating the fairing with respect to the outer case and for permitting radial expansion in contraction of the fairing.
Information query
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