Variable area fan nozzle with one or more integrated blocker doors
US9551298B2 · kind B2 · utility
3Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2013 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | May 6, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/57
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A nacelle assembly for a turbofan engine includes a forward nacelle portion having an aft edge and defining a bypass duct that transports bypass airflow of the turbofan engine, a translatable sleeve that is translatable aft of the forward nacelle portion, and a variable area fan nozzle (VAFN) airfoil that is movable between a stowed position, a VAFN flow position, and a thrust reverse position. Blocker doors for the thrust position are integrated into the VAFN airfoil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.