Stiffening member for epicyclical gear system housing assembly
US11391217B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Jun 17, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/02043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A planet gear housing assembly is disclosed in an epicyclical gear system of a gas turbine engine having an engine casing. The planet gear housing assembly comprises an aft planet carrier assembly, a forward planet carrier assembly, and a plurality of planet gears. An aft flange of the aft planet carrier assembly is coupled to the engine casing to define a first torsional stiffness. A forward flange of the forward planet carrier assembly is coupled to the aft flange to define a second torsional stiffness. The second torsional stiffness may be between 60% and 80% of the first torsional stiffness. The planet gear housing assembly may further comprise a stiffening member positioned between the forward planet carrier assembly and the aft planet carrier assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.