초록 ▼

A cascade thrust reverser for use with a mixer/ejector noise suppressor has a set of internal blocker doors controllably moveable between a stowed position, where engine exhaust passes through and out the tailpipe, and a deployed position, where engine exhaust is blocked and redirected out a pair of

A cascade thrust reverser for use with a mixer/ejector noise suppressor has a set of internal blocker doors controllably moveable between a stowed position, where engine exhaust passes through and out the tailpipe, and a deployed position, where engine exhaust is blocked and redirected out a pair of cascades or louvers. External cascade doors cover the cascades from the outside during flight, but are moved aft, exposing the cascades, when the blocker doors are deployed subsequent landing. In a preferred embodiment, the cascade doors and the blocker doors are interconnected through a pair of actuation mechanisms, whereby movement of the cascade doors is sequenced to the motion of the blocker doors. The blocker doors and the cascade doors are shaped to provide a clean aerodynamic profile when stowed, so that the noise suppressor functions optimally. The actuation mechanisms also preferably include lock mechanisms for only allowing the thrust reversers to be deployed just subsequent landing. Also, the thrust reverser can directly replace one of an airplane's existing thrust reversers without any modifications to the plane's hydraulic system or controls or instrumentation.

대표청구항 ▼

[ Having thus described the invention, what is claimed is:] [1.]1. A cascade thrust reverser for jet engines comprising:a. a frame defining an axial bore and holding a pair of opposed cascades extending from the bore through to an exterior of the frame;b. exterior covering means attached to the exte

[ Having thus described the invention, what is claimed is:] [1.]1. A cascade thrust reverser for jet engines comprising:a. a frame defining an axial bore and holding a pair of opposed cascades extending from the bore through to an exterior of the frame;b. exterior covering means attached to the exterior of the frame for being positionable at one of a stowed position covering the cascades from the outside and a deployed position uncovering the cascades;c. interior blocking means disposed in the bore for being positionable at one of a stowed position covering the cascades from inside the bore and a deployed position concurrently uncovering the cascades and blocking the bore;d. actuation means, attached to the exterior of the frame and operably connected to the exterior covering means and the interior blocking means, for positioning the exterior covering means and the interior blocking means concurrently at one of their deployed positions and their stowed positions; ande. prevention means attached to the frame proximate the actuation means for preventing an accidental deployment of the thrust reverser, wherein the prevention means interacts with the actuation means to allow it to position the exterior covering means and the interior blocking means at their deployed positions only when a hydraulic system pressure supplied to the prevention means is proximate an elevated level produced by the hydraulic system subsequent an airplane carrying the thrust reverser landing.