Confluent variable exhaust nozzle
AssigneeThe NORDAM Group, Inc.
InventorJean-Pierre Lair
Life of this patent
Estimating the term…
Abstract
A gas turbine engine exhaust nozzle includes coaxial inner and outer conduits. The inner conduit has a main outlet at an aft end thereof, and a row of radial apertures spaced upstream from the outlet. The outer conduit has an auxiliary outlet at an aft end thereof, and surrounds the inner conduit over the apertures to form a bypass channel terminating at the auxiliary outlet. A plurality of flaps are hinged at upstream ends thereof to selectively cover and uncover corresponding ones of the apertures and selectively bypass a portion of exhaust flow from the inner conduit through the outer conduit in confluent streams from both the main and auxiliary outlets.
Claims29
A gas turbine engine exhaust nozzle comprising:
- an inner conduit having a main outlet at an aft end thereof, and including a row of radial apertures spaced upstream from said outlet;
- an outer conduit having an auxiliary outlet at an aft end thereof, and surrounding said inner conduit over said apertures to form an axially unobstructed bypass channel terminating at said auxiliary outlet;
- and
- a plurality of flaps hinged at upstream ends thereof to selectively cover and uncover corresponding ones of said apertures and selectively bypass a portion of exhaust flow from said inner conduit through said outer conduit in confluent streams from both said main and auxiliary outlets.
A gas turbine engine exhaust nozzle comprising:
- an inner conduit having a main outlet at an aft end thereof, and including a row of radial apertures spaced upstream from said outlet;
- an outer conduit having an auxiliary outlet at an aft end thereof, and surrounding said inner conduit over said apertures to form a bypass channel terminating at said auxiliary outlet;
- a plurality of flaps hinged at upstream ends thereof to selectively cover and uncover corresponding ones of said apertures and selectively bypass a portion of exhaust flew from said inner conduit through said outer conduit in confluent streams from both said main and auxiliary outlets;
- a radial frame extending circumferentially between said outer and inner conduits forward of said apertures;
- and
- a plurality of longitudinal frames extending axially from said radial frame and disposed circumferentially between corresponding ones of said apertures.
A gas turbine engine exhaust nozzle comprising:
- a forward barrel and an aft barrel defining an inner conduit integrally joined together by lateral beams defining side openings therebetween;
- a plurality of doors covering corresponding ones of said side openings;
- means for selectively opening said doors to uncover said side openings for reversing thrust from said exhaust flow;
- said inner conduit having a main outlet at an aft end thereof, and including a row of radial apertures spaced upstream front said outlet;
- an outer conduit having an auxiliary outlet at an aft end thereof, and surrounding said inner conduit over said apertures to form a bypass channel terminating at said auxiliary outlet;
- and
- a plurality of flaps hinged at upstream ends thereof to selectively cover and uncover corresponding ones of said apertures and selectively bypass a portion of exhaust flow from said inner conduit through said outer conduit in confluent streams from both said main and auxiliary outlets.
Dependencies are inferred from the claim text.