Patent attributes
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.
