Invention Grant
- Patent Title: Engine mid-turbine frame transfer tube for low pressure turbine case cooling
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Application No.: US14773876Application Date: 2014-03-12
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Publication No.: US10087782B2Publication Date: 2018-10-02
- Inventor: Cheng-Zhang Wang , Jorn A. Glahn , David F. Cloud , Peter M. Munsell , Clifton J. Crawley, Jr. , Robert Newman , Michelle Diana Stearns
- 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/US2014/023949 WO 20140312
- International Announcement: WO2014/175969 WO 20141030
- Main IPC: F01D25/24
- IPC: F01D25/24 ; F01D25/00 ; F01D9/06 ; F01D25/16 ; F01D9/04 ; F02C7/18

Abstract:
A turbine engine includes a turbine section with a low pressure turbine and a turbine case disposed about an axis. A frame assembly defines an outer cavity and an inner cavity with the outer cavity including at least one opening configured and adapted to communicate cooling air to the turbine case. A transfer tube is disposed within the outer cavity and is configured and adapted to receive cooling air. The transfer tube includes a bend configured to impart circumferential velocity to the cooling air within the outer cavity.
Public/Granted literature
- US20160032775A1 ENGINE MID-TURBINE FRAME TRANSFER TUBE FOR LOW PRESSURE TURBINE CASE COOLING Public/Granted day:2016-02-04
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