Ring gear mounting arrangement with oil scavenge scheme
US9115650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2014 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Jun 2, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49462
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A turbine engine includes a fan section including a plurality of fan blades, a turbine section, and an epicyclic gear train coupled between the turbine section and the fan section for providing a speed reduction between turbine section and the fan section. The epicyclic gear train includes a plurality of intermediate gears. A carrier supports the plurality of intermediate gears. A sun gear meshes with the plurality of intermediate gears and a ring gear surrounding and meshing with the plurality of intermediate gears. The ring gear includes first and second portions that each have an inner periphery with teeth. The first and second portions of the ring gear have an outer circumferential surface opposite the teeth that provides a first thickness, a second thickness greater than the first thickness and axially inward from the first thickness, and a flange extending radially away from the axis. An epicyclic gear train for a turbine engine and method of designing an epicyclic gear train are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.