Invention Application
US20160319830A1 FAN DRIVE GEAR SYSTEM INCLUDING A TWO-PIECE FAN SHAFT WITH LUBRICANT TRANSFER LEAKAGE RECAPTURE
审中-公开
风扇驱动齿轮系统,包括带有润滑剂转移泄漏记录的两片风扇轴承
- Patent Title: FAN DRIVE GEAR SYSTEM INCLUDING A TWO-PIECE FAN SHAFT WITH LUBRICANT TRANSFER LEAKAGE RECAPTURE
- Patent Title (中): 风扇驱动齿轮系统,包括带有润滑剂转移泄漏记录的两片风扇轴承
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Application No.: US15105118Application Date: 2014-11-25
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Publication No.: US20160319830A1Publication Date: 2016-11-03
- Inventor: William G. Sheridan , Karl D. Blume
- Applicant: UNITED TECHNOLOGIES CORPORATION
- International Application: PCT/US2014/067303 WO 20141125
- Main IPC: F04D29/063
- IPC: F04D29/063 ; F01M11/02 ; F04D25/02 ; F04D29/64 ; F04D29/054 ; F04D29/056

Abstract:
A disclosed fan drive gear system for a gas turbine engine includes a first fan shaft coupled to a second fan shaft, a first shaft support bearing assembly disposed about the first fan shaft and a second shaft support bearing assembly disposed about the second fan shaft. A planetary gear system is coupled to the second fan shaft. A transfer bearing is configured to receive lubricant from a lubricant input and is positioned between the first and second fan shaft support bearings. A second bearing is configured to rotate with the second fan shaft and receive lubricant from the transfer bearing and communicate lubricant to at least one lubricant passage and a conduit fluidly connecting the at least one lubricant passage to the planetary gear system.
Public/Granted literature
- US10161409B2 Fan drive gear system including a two-piece fan shaft with lubricant transfer leakage recapture Public/Granted day:2018-12-25
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