Thrust reverser for a turbofan jet engine

摘要

A thrust reverser for a turbofan-type turbojet engine in which the axial length of the fan housing is less than that of the turbojet engine cowling such that the movable thrust reverser baffles may be attached to the jet engine cowling and moved to an extended position wherein the cold flow gases emanating from the cold flow exhaust duct are redirected to provide a thrust reversing force. The baffles are movably attached to the engine cowling by a plurality of linkrods forming a deformable parallelogram kinematic linkage. Each of the linkrods has opposite ends pivotally attached to the movable baffle and to the engine cowling, respectively. An actuator is connected between the movable baffle and the engine cowling to move the baffle between an extended position, wherein it redirects the cold flow gases to provide a thrust reversing force, and a retracted position wherein the outer surface of the movable baffle is substantially flush with the outer surface of the engine cowling so as to minimize disturbances of the cold flow gases passing over the surface of the cowling. The actuator may be either located forwardly of the baffle or rearwardly of the baffle.