Binary vector spraying pipe capable of realizing S-bent shading function

Abstract

The invention discloses a binary vector spraying pipe capable of realizing an S-bent shading function, and belongs to the technical field of aero-engine spraying pipes. The binary vector spraying pipe is characterized in that the front section of a circular turning square barrel body (1) is connected with an engine to form a supporting structural member of the whole spraying pipe; an actuating barrel (2), a pull rod (3), a convergence adjustment plate (4), an expansion adjustment plate front section (5), an expansion adjustment plate rear section (6), an actuating barrel (8), a pull rod (9), an actuating barrel (10), a pull rod (11) and an expansion adjustment plate (12) are used as main bearing adjustment mechanisms, so that adjustment on a throat area and an outlet area, the S-bent shading function and a vector deflection function are realized. The binary vector spraying pipe retains a vector deflection function for conventional binary vector spraying pipe throat area adjustment and different-angle adjustment; the function for detecting whether a high-temperature component is completely shaded or not from the back of the engine can be realized, and high infrared hiding performance is achieved; the defect that the conventional S-bent spraying pipe cannot be adjusted is overcome, and vector deflection is realized; the binary vector spraying pipe is simple in structure, high in reliability and high in invisibility.

Description

technical field

[0001] The invention belongs to the technical field of aeroengine nozzles, relates to a binary vector nozzle capable of realizing the S-bend shielding function, and is also applicable to the field of aerospace engine nozzles in demand. Background technique

[0002] Due to the non-adjustable length of the expansion section of the traditional aero-engine binary vector nozzle, and the inability to detect the complete shielding of high-temperature components from directly behind the engine, the infrared stealth performance is poor. Although the plug-type lost-volume nozzle can completely shield most of the high-temperature components, the adjustment range of the throat area of ​​this type of nozzle is limited. However, the current S-bend nozzles are all fixed nozzles with non-adjustable throat area, and the vector deflection function cannot be realized, and the aerodynamic loss of the S-bend nozzle is relatively large when stealth is not required. In order to ma...

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