Thrust reverser geared linkage

An improved thrust reversing apparatus for reversing the gas stream of a fan jet engine having a primary plug surrounded by cowl and forming a duct therebetween, said cowl having a fixedly positioned forward section and an aft translatable section comprising:

• a plurality of rotatable blocker doors associated with the aft translatable cowl section for substantially reversing the normal rearward flow of said gas stream when rotated to a deployed position and defining a portion of the duct when in a stowed position;
• and
• mechanism for rotating each of said plurality of blocker doors, said mechanism comprising a pinion gear rotatable about an axle shaft, a pair of opposing gear racks for engagement with said pinion gear, one of said gear racks fixedly attached to the forward cowl section, and the other gear rack carried by said aft translatable cowl section, and at least one link member pivotably attached at one end to said axle shaft and at the other end to one of said plurality of blocker doors, whereby the translation of said aft translatable cowl section rotates said pinion gear on said racks about said axle shaft causing said at least one link member to rotate its associated blocker door into said duct.