초록 ▼

A nozzle assembly for use with a jet engine for controlling the direction of the discharged fluid and hence the direction of thrust is disclosed. The nozzle housing and an internally mounted bifurcation structure are arranged to divide the exhaust fluid flowing into a circular entrance orifice into

A nozzle assembly for use with a jet engine for controlling the direction of the discharged fluid and hence the direction of thrust is disclosed. The nozzle housing and an internally mounted bifurcation structure are arranged to divide the exhaust fluid flowing into a circular entrance orifice into two separate fluid streams that flow out of rectangular discharge orifices on the rear face of the nozzle. Flow deflection doors, stored within a rearwardly opening cavity formed by the bifurcation structure between the two rectangular discharge orifices, are selectively extendable into each fluid stream to modify the direction of the discharged fluid. The two flow ducts formed by the bifurcation structure and nozzle housing are configured to discharge the two fluid streams toward one another such that the fluid streams converge into a single, thrust-producing fluid stream aft of the exit orifices when the flow deflection doors are not deployed. The flow deflection doors can be asymmetrically deployed to angularly deflect the single thrust producing fluid stream for thrust vectoring, or can be symmetrically deployed to maintain the exhausted fluid streams as separate thrust producing streams that are angularly deflected away from one another for thrust reversal or thrust spoilage.

대표청구항 ▼

A jet nozzle for use with a jet propulsion engine for controlling the direction of the fluid discharged therefrom relative to a reference line extending rearwardly from said jet nozzle comprising: outer housing means defining a fluid flow duct for rearwardly directing the fluid discharged by said je

A jet nozzle for use with a jet propulsion engine for controlling the direction of the fluid discharged therefrom relative to a reference line extending rearwardly from said jet nozzle comprising: outer housing means defining a fluid flow duct for rearwardly directing the fluid discharged by said jet engine, said outer housing means having an entrance orifice and an exit orifice; bifurcation means mounted within said fluid flow duct for dividing said fluid flowing throUgh said duct into first and second thrust producing fluid streams, said bifurcation means dividing said exit orifice into first and second spaced apart discharge orifices for respectively discharging said first and second fluid streams in a rearward direction, said bifurcation means defining a rearwardly opening cavity between said first and second discharge orifices, said duct in said housing means and said bifurcation means being so constructed and associated with one another to discharge said first and second fluid streams inwardly toward said reference line for impingement of said inwardly directed first and second fluid streams on each other at a location rearward of said discharge orifices, the interaction between said impinging first and second fluid streams re-directing said first and second fluid streams as a single rearwardly directed fluid stream that is substantially symmetrical about said reference line; and deflection means operable in a thrust vectoring mode of operation for angularly disposing said single thrust producing fluid stream relative to said rearwardly extending reference line, said deflection means operable from a stowed position within said rearwardly opening cavity of said bifurcation means to at least one deployed position wherein said deflection means extends into and intercepts at least one of said first and second fluid streams, each of said deployed position of said thrust vectoring mode redirecting the intercepted first and second fluid streams outwardly and away from said reference line for mergence with one another at a position rearward of said discharge orifices and outward of said reference line to form a single thrust producing fluid stream angularly disposed relative to said reference line.