Patent ID: 7093793

Claim:
A gas turbine engine exhaust nozzle comprising: an exhaust duct having an outlet at an aft end thereof for discharging exhaust flow, and including a row of radial apertures spaced upstream from said outlet; a radial frame extending circumferentially around said duct and spaced forward from said apertures; a plurality of flaps hinged at upstream ends thereof to said frame to selectively cover and uncover said apertures for controlling exhaust flow discharge therethrough, and each flap including a cam extending radially outwardly therefrom for radial and axial movement therewith as said flap pivots; an arcuate unison bar mounted circumferentially around said duct adjacent to said frame, and including a plurality of cam followers spaced circumferentially apart in radial engagement with corresponding ones of said cams affixed to said flaps; and an actuator joined to said bar for selectively rotating said bar in a first direction to pivot open said flaps, and in an opposite second direction to pivot closed said flaps to cover said apertures.