公开(公告)号：US12188417B1

公开(公告)日：2025-01-07

申请号：US18370505

申请日：2023-09-20

Applicant: RTX CORPORATION

Inventor： David Allen Stachowiak ,  Marc J. Muldoon

IPC: F02C7/36 ,  F02C7/06

Abstract: A fan drive gear system for a turbine engine includes a carrier that supports rotation of the plurality of intermediate gears and is configured for rotation about the axis. A rotating oil inlet and rotating gutter are attached to the carrier. A transfer bearing is fixed to a static engine structure and engaged to communicate oil to the rotating oil inlet. A static baffle that is disposed radially outward of the transfer bearing and configured to direct oil that is expelled from the transfer bearing into the rotating gutter.

公开(公告)号：US12049850B1

公开(公告)日：2024-07-30

申请号：US18370511

申请日：2023-09-20

Applicant: RTX CORPORATION

Inventor： Francis Parnin ,  David Allen Stachowiak ,  Marc J. Muldoon

IPC: F02C7/36 ,  F01D25/18 ,  F02C7/06

CPC classification number: F02C7/36 ,  F01D25/18 ,  F02C7/06 ,  F05D2220/36 ,  F05D2260/40311 ,  F05D2260/98

Abstract: A fan drive gear system for a turbine engine includes a sun gear that is configured to be driven by an engine shaft that is rotatable about an axis, a plurality of intermediate gears that are intermeshed with the sun gear, a ring gear assembly that is engaged with the plurality of intermediate gears, the ring gear configured for attachment to a static structure, a carrier that supports rotation of the plurality of intermediate gears, the carrier configured for rotation about the axis, a fixed gutter system that is configured to receive expelled lubricant and to direct the expelled lubricant to an auxiliary reservoir, at least one ejector that is disposed within the fixed gutter and configured to utilize a motive flow to generate a lubricant flow through at least one outlet, and a fan shaft that is rotatable about the axis and configured to be driven by the carrier.