Invention Grant
- Patent Title: Fan drive gear system
-
Application No.: US16180548Application Date: 2018-11-05
-
Publication No.: US11156166B2Publication Date: 2021-10-26
- Inventor: Gary D. Roberge , Michael E. McCune , 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: Carlson, Gaskey & Olds, P.C.
- Main IPC: F02C7/36
- IPC: F02C7/36 ; F01D25/16

Abstract:
A gas turbine engine includes a fan section and a speed change mechanism for driving the fan section. The speed change mechanism is an epicyclic gear train. A torque frame surrounds the speed change mechanism and includes a plurality of fingers. A bearing support is attached to the plurality of fingers. A first fan section support bearing is mounted forward of the speed change mechanism and a second fan section bearing is mounted on the bearing support aft of the speed change mechanism. The second fan section bearing is a fan thrust bearing.
Public/Granted literature
- US20190072040A1 FAN DRIVE GEAR SYSTEM Public/Granted day:2019-03-07
Information query
IPC分类: