Ring gear mounting arrangement with oil scavenge scheme
US8753243B2 · kind B2 · utility
12Cited by
23References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2006 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | May 3, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49462
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A turbine engine includes an epicyclic gear train that has a two-piece ring gear. Each portion of the ring gear includes radially outwardly extending flanges that are axially constrained to a turbo fan shaft by bolts secured circumferentially along the flanges. Knife edge seals are secured to the flanges to contain oil expelled through the ring gear into a gutter. The ring gear and turbo fan shaft can be rotationally balanced together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.