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

FAN DRIVE GEAR SYSTEM INCLUDING A TWO-PIECE FAN SHAFT WITH LUBRICANT TRANSFER LEAKAGE RECAPTURE
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.
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