Invention Grant
- Patent Title: Cooling passages for a mid-turbine frame
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Application No.: US14598492Application Date: 2015-01-16
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Publication No.: US09920651B2Publication Date: 2018-03-20
- Inventor: Anthony P. Cherolis , John H. Mosley , Kalpendu J. Parekh , Christopher Treat , Alberto A. Mateo
- 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: F01D25/14
- IPC: F01D25/14 ; F01D25/24 ; F01D9/06 ; F02C7/12 ; F01D25/16 ; F01D25/12

Abstract:
A mid-turbine frame for a gas turbine engine includes an inner frame case that includes a fluid passage. At least one spoke includes an inlet passage with at least one branch extending in an axial direction in fluid communication with the fluid passage in the inner frame case. A fitting fluidly connects the at least one branch to the fluid passage in the inner frame case. The fitting also includes a transfer tube connecting the cooling airflow passage to a cup boss. The transfer tube is fixed relative to the cylindrical portion and moveable relative to the cup boss. A swirler tube is in fluid communication with the fluid passage and is configured to direct cooling airflow in a radial inward and downstream direction.
Public/Granted literature
- US20160208647A1 COOLING PASSAGES FOR A MID-TURBINE FRAME Public/Granted day:2016-07-21
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