Invention Grant
- Patent Title: Turbofan engine bearing and gearbox arrangement
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Application No.: US16786421Application Date: 2020-02-10
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Publication No.: US11608779B2Publication Date: 2023-03-21
- Inventor: William G. Sheridan , Michael E. McCune
- 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: F02C3/107
- IPC: F02C3/107 ; F02C7/36 ; F02K3/06 ; F02C7/06

Abstract:
A turbofan engine includes a fan that delivers air into a bypass duct and into a core engine. A fan drive gear system includes a gear carrier and at least one ring gear. The at least one ring gear is coupled to an engine case of the turbofan engine with a compliant flexure. A fan shaft couples the gear carrier in the fan drive gear system to the fan. A first bearing is forward of the fan drive gear system and supports the fan drive gear system. A second bearing is aft of the fan drive gear system and supports the fan drive gear system.
Information query
IPC分类: