Invention Grant
- Patent Title: Geared turbofan with four star/planetary gear reduction
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Application No.: US14935673Application Date: 2015-12-01
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Publication No.: US10508562B2Publication Date: 2019-12-17
- Inventor: Frederick M. Schwarz , William G. Sheridan , Michael E. McCune , Gabriel L. Suciu
- 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: F16H1/28
- IPC: F16H1/28 ; F01D15/12 ; F01D25/18 ; F02K3/06 ; F16H57/04 ; F02C7/36
Abstract:
A gas turbine engine has a fan rotor, a turbine rotor driving the fan rotor, and an epicyclic gear reduction positioned between the fan rotor and the turbine rotor. The epicyclic gear reduction includes a ring gear, a sun gear, and no more than four intermediate gears that engage the sun gear and the ring gear. The fan drive turbine is configured to drive the sun gear to, in turn, drive the ring gears to, in turn, drive the fan rotor.
Public/Granted literature
- US20170152756A1 GEARED TURBOFAN WITH FOUR STAR/PLANETARY GEAR REDUCTION Public/Granted day:2017-06-01
Information query
