Exhaust nozzle of a gas turbine engine
AssigneeGeneral Electric Company
InventorAllan D. Beverage
Life of this patent
Estimating the term…
Abstract
An exhaust nozzle of a gas turbine engine effective for reducing the emission of infrared radiation and providing an extensive maneuvering capability. The nozzle preferably is of the two-dimensional type and includes an exhaust cowl with a generally rectangular cross-sectional exhaust opening and a plug within the downstream end of the cowl. The plug, which is preferably wedge-shaped, is pivotable about a transverse axis running through the aft portion of the plug by an appropriate means, for example, a cam or a screw jack mechanism. The nozzle can also include blocker doors and louvers for providing thrust reversal.
Claims16
An exhaust nozzle for a gas turbine engine comprising:
- a) an exhaust cowl having a generally rectangular exhaust opening defined by upper and lower walls and opposed spaced side fairings;
- b) a plug including a forward end portion and an aft end portion, said plug being spaced between said upper and lower walls of said cowl and extending transversely across the width thereof for dividing said exhaust opening into an upper exhaust opening and a lower exhaust opening, said plug being pivotable about a transverse axis passing through said aft end portion thereof and between an upper position wherein said forward end portion thereof is adjacent said upper wall for substantially closing said upper exhaust opening and increasing said lower exhaust opening and a lower position wherein said forward end portion is adjacent said lower wall for substantially closing said lower exhaust opening and increasing said upper exhaust opening;
- and
- c) means effective for pivoting said plug.
An exhaust nozzle for a gas turbine engine comprising:
- a) an exhaust cowl having a generally rectangular exhaust opening defined by upper and lower walls and opposed spaced side fairings, each upper and lower wall having at least one louver for opening and thereby providing communication between the interior and the exterior of the exhaust nozzle, said side fairings extending downstream of aft edges of said upper and lower wall;
- b) a plug including a forward end portion and an aft end portion, having a wedge-shaped cross-sectional configuration, extending between said side fairings and dividing said exhaust opening into an upper and a lower exhaust opening, said aft end portion of said plug protruding downstream of said aft edges of said upper and lower walls, said plug being pivotable between said upper and lower walls about a transverse axis passing through said aft end portion thereof for increasing one while decreasing the other of said upper and lower exhaust openings, said plug further including pivotable blocker doors and means for pivoting said blocker doors, each blocker door abutting a transverse surface of said plug when said blocker door is closed;
- and
- c) means effective for pivoting said plug.
Dependencies are inferred from the claim text.