Yaw and pitch thrust vectoring nozzle
AssigneeUnited Technologies Corporation
InventorDavis C. Holden
Life of this patent
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Abstract
An exhaust nozzle (12) for providing both yaw and pitch thrust vectoring includes an upper flap assembly (18) and a lower flap assembly (20). Each flap assembly (18, 20) includes a forward stub flap (51, 53) with lateral hinges (32, 34) and a plurality of individual flap sections (52) extending longitudinally downstream and adjacently engaged for defining the upper and lower gas flow boundaries. The forward end of each flap section (52) is pivoted vertically (54) in the same plane as vertical sidewall hinges (48, 50). Yaw thrust vectoring is achieved by pivoting the sections (52) and sidewalls (22, 24), while pitch thrust vectoring is achieved by moving the flap assemblies (18, 20) about the respective forward hinges (32, 34).
Claims3
A movable outlet duct for a thrust vectoring exhaust nozzle, comprising:
- first and second laterally spaced, vertical sidewalls, each sidewall pivotable about a vertical hinge secured to the nozzle and extending downstream therefrom;
- an upper flap assembly disposed between the sidewalls, including:
- a laterally extending upper stub flap,
- a plurality of flap sections each extending parallel to the gas flow and disposed adjacently between the sidewalls, each pair of adjacent flap sections having a linear sliding seal joint therebetween, the flap sections and upper stub flap collectively defining a planar upper gas boundary of the outlet duct,
- each flap section further including a vertical pivot joint adjacent the upstream end thereof, each pivot joint being secured downstream of the laterally extending upper stub flap disposed between the flap sections and the nozzle, the upper stub flap further including a lateral hinge at the upstream edge thereof secured to the nozzle, whereby the upper flap assembly is collectively movable about the laterally extending hinge and whereby the individual flap sections are movable in unison about the corresponding vertical pivot joints thereby achieving both vertical and lateral movement of the outlet duct.
Dependencies are inferred from the claim text.