Bypass type passive double-throat pneumatic vector spraying pipe with flow regulating function and control method

Abstract

The invention discloses a bypass type passive double-throat pneumatic vector spraying pipe with a flow regulating function. A main flow channel in the spraying pipe sequentially comprises a first throat front convergence segment, a first throat, a second throat front expansion and convergence segment and a second throat. According to a body for achieving the flow regulating function of the bypass type passive double-throat pneumatic vector spraying pipe, a flow regulating channel is arranged between a bypass channel bevel and the second throat front expansion and convergence segment. The functions of flow regulation and thrust vector regulation in different work states of the spraying pipe are achieved at the same time through vertically-symmetric flow regulating switches capable of achieving stepless regulation. The spraying pipe is of urgent and great significance on efficient work and thrust vector regulation of an aircraft with the bypass type passive double-throat pneumatic vector spraying pipe in different work states.

Description

technical field [0001] The invention relates to the field of aircraft propulsion system design, in particular to a bypass type passive dual-throat aerodynamic vectoring nozzle. Background technique [0002] With the development of science and technology, more and more aircraft are equipped with thrust vectoring aeroengines. For fighter jets and missiles, the working range of the engine and nozzle is relatively narrow during conventional flight; however, when evading, intercepting, chasing, and maneuvering, it is inevitable to perform afterburning, thereby improving the nozzle. The working drop pressure ratio of the engine is increased to increase the thrust of the engine and increase the flight speed, so that the working range of the nozzle is widened, and thrust vectoring technology is sometimes used for maneuvering in the process. Therefore, a thrust-vectoring nozzle device with the ability to work efficiently in a wide operating range is of great value for future aircraf...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a bypass-type passive dual-throat aerodynamic vectoring nozzle with a flow regulating function, which is used to solve the problem of the traditional thrust vectoring nozzle with a flow regulating function. The design is complicated and the structure is heavy, which is not applicable to the technical problems of the project

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