Invention Grant
- Patent Title: Turbofan engine bearing and gearbox arrangement
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Application No.: US16225623Application Date: 2018-12-19
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Publication No.: US10830131B2Publication Date: 2020-11-10
- Inventor: Frederick M. Schwarz , William G. Sheridan
- 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: Bachman & LaPointe, P.C.
- Main IPC: F02C3/107
- IPC: F02C3/107 ; F01D25/16 ; F02K3/06 ; F04D25/02 ; F04D29/059 ; F04D29/32 ; F02C7/36 ; F02C7/06

Abstract:
A turbofan engine comprising a fan shaft configured to rotate about an axis of the engine. A fan drive gear system is configured to drive the fan shaft. A first spool comprises a high pressure turbine and a high pressure compressor. A second spool comprises a lower pressure turbine, a lower pressure compressor, and a shaft coupling the lower pressure turbine to the intermediate pressure compressor. The engine has a plurality of main bearings. The lower pressure compressor has a plurality of disks and a forward hub mounted to a forwardmost disk.
Public/Granted literature
- US20190128182A1 Turbofan Engine Bearing and Gearbox Arrangement Public/Granted day:2019-05-02
Information query
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