Invention Grant
- Patent Title: Geared turbofan with three turbines all counter-rotating
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Application No.: US15843012Application Date: 2017-12-15
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Publication No.: US10830130B2Publication Date: 2020-11-10
- Inventor: Gabriel L. Suciu , Frederick M. Schwarz
- Applicant: Raytheon Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: Raytheon Technologies Corporation
- Current Assignee: Raytheon Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D1/10
- IPC: F01D1/10 ; F02C3/107 ; F02C3/073 ; F02C3/067 ; F01D1/26 ; F01D5/06 ; F01D15/12 ; F02C3/06

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
- US20180128168A1 GEARED TURBOFAN WITH THREE TURBINES ALL COUNTER-ROTATING Public/Granted day:2018-05-10
Information query
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