Oil baffle for gas turbine fan drive gear system
US7704178B2 · kind B2 · utility
166Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2006 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Nov 7, 2028 |
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.