Patent ID: 6050522
Filing Date: 2000-04-18
Classification: F02K,Y02T

Abstract:
A thrust reverser for a turbofan jet engine having a fan cowling forming an outer boundary of an air flow duct and a jet engine structure including a jet engine cowling, the thrust reverser comprising:a) a casing affixed to the jet engine structure, the casing having a forward collar, an intermediate radially extending flange, a plurality of longitudinally extending ribs affixed to the forward collar, the casing and the flange, and a plurality of attaching yokes;b) a first thrust reverser flap pivotally connected to a corresponding one of the attaching yokes and located rearwardly of an exit of the air flow duct, each first thrust reverser flap having a distal end and being movable between a forward thrust position, wherein a first surface thereof is substantially flush with an outer surface of the jet engine cowling, and a reverse thrust position, wherein the first thrust reverser flaps extend outwardly from the jet engine cowling so as to redirect air flow emanating from the air flow duct;c) a second thrust reverser flap pivotally connected to the distal end of a corresponding one of the first thrust reverser flaps and movable between a forward thrust position, wherein a second surface thereof is substantially flush with the outer surface of the jet engine cowling, and a reverse thrust position, wherein the second thrust reverser flap redirects air flow emanating from the air flow duct;d) an actuating mechanism connected to the casing and to the first thrust reverser flaps to move the first thrust reverser flaps between the forward and reverse thrust positions; and,e) a linkrod connected to a corresponding one of the second thrust reverser flaps and the corresponding attaching yoke to move the second thrust reverser flap between the forward and reverse thrust positions as the corresponding first thrust reverser flap moves between the forward and reverse thrust positions.