Invention Grant
- Patent Title: Integral flexured carriers for aircraft planetary gear systems
-
Application No.: US17401210Application Date: 2021-08-12
-
Publication No.: US11370537B2Publication Date: 2022-06-28
- Inventor: Colton James Gilliland , Russell Lee Mueller , Tyson T. Henry
- Applicant: Textron Innovations Inc.
- Applicant Address: US RI Providence
- Assignee: Textron Innovations Inc.
- Current Assignee: Textron Innovations Inc.
- Current Assignee Address: US RI Providence
- Agency: Lawrence Youst PLLC
- Main IPC: F16H1/28
- IPC: F16H1/28 ; B64C29/00 ; F16H1/36 ; F16H57/08 ; B64D35/04 ; F16H57/02

Abstract:
A drivetrain for an aircraft includes an engine, a driveshaft receiving rotational energy from the engine and a gearbox including a planetary gear system receiving rotational energy from the driveshaft. The planetary gear system includes a sun gear, planet gears, a ring gear and an integral carrier forming flexured carrier posts. Each flexured carrier post supports a respective one of the planet gears and has a fixed proximal end and a cantilevered distal end. The planetary gear system includes flexured roller races, each having a fixed end and a cantilevered end. The fixed end of each flexured roller race is coupled to the cantilevered distal end of a respective flexured carrier post. The planet gears engage with the flexured roller races to rotate about the flexured carrier posts. The cantilevered ends of the flexured roller races experience cantilevered motion to absorb loads from the planet gears.
Public/Granted literature
- US20210371098A1 Integral Flexured Carriers for Aircraft Planetary Gear Systems Public/Granted day:2021-12-02
Information query