Translating sleeve thrust reverser with movable cascade
US9068532B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2013 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K1/72
- 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 reverse thrust apparatus that is movable between a stowed position, and a deployed position. When the reverse thrust apparatus is deployed, the translatable sleeve is moved aft to a position away from the aft edge of the forward nacelle portion to expose a cascade assembly comprising an opening in the bypass duct, and one or more blocker doors are deployed so as to extend into the bypass duct, such that at least a portion of the airflow in the bypass duct is directed out the bypass duct through the cascade assembly. Also, during deployment of the reverse thrust apparatus, at least a portion of the cascade assembly translates toward the engine centerline. The cascade assembly may have a cross-section that is non-uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.