Oil baffle for gas turbine fan drive gear system
US7883439B2 · kind B2 · utility
37Cited by
17References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2010 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Mar 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49464
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine includes an epicyclic gear train that drives a turbo fan. The epicyclic gear train employs a one-piece carrier in which the spaced side walls are interconnected with circumferentially spaced apart mounts to form a unitary structure. Baffles are secured to the carrier near the mounts and provide lubrication passages that spray oil onto the sun gear and/or intermediate gears arranged between the baffles. The baffles can be constructed from a different material than the carrier since the baffles are not structural components in the gear train.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.