Invention Grant
- Patent Title: Geared turbofan with three turbines all counter-rotating
- Patent Title (中): 具有三个涡轮机的齿轮涡扇风机都是反向旋转的
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Application No.: US13455198Application Date: 2012-04-25
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Publication No.: US09074485B2Publication Date: 2015-07-07
- Inventor: Gabriel L. Suciu , Frederick M. Schwarz
- Applicant: Gabriel L. Suciu , Frederick M. Schwarz
- Applicant Address: US CT Hartford
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Hartford
- Agency: Carlson, Gaskey & Olds, PC
- Main IPC: F01D1/26
- IPC: F01D1/26 ; F02C3/067 ; F02C3/107

Abstract:
A gas turbine engine has a fan rotor, a first compressor rotor and a second compressor rotor. The second compressor rotor compresses air to a higher pressure than the first compressor rotor. A first turbine rotor drives the second compressor rotor and a second turbine rotor. The second turbine drives the compressor rotor. A fan drive turbine is positioned downstream of the second turbine rotor. The fan drive turbine drives the fan through a gear reduction. The first compressor rotor and second turbine rotor rotate as an intermediate speed spool. The second compressor rotor and first turbine rotor together as a high speed spool. The high speed spool and the fan drive turbine configured to rotate in the same first direction. The intermediate speed spool rotates in an opposed, second direction.
Public/Granted literature
- US20130287545A1 GEARED TURBOFAN WITH THREE TURBINES ALL COUNTER-ROTATING Public/Granted day:2013-10-31
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