Binary spray pipe with pitching yaw function and aircraft with binary spray pipe

Abstract

The invention discloses a binary spray pipe with a pitching yaw function and an aircraft with the binary spray pipe. The binary spray pipe with the pitching yaw function comprises a round-square cylinder body, a convergent section, an expansion section, a first adjustable plate, a second adjustable plate, a third adjustable plate, a fourth adjustable plate, a first actuating cylinder, a second actuating cylinder, a third actuating cylinder and a fourth actuating cylinder, wherein one end of the round-square cylinder body is connected with a engine, and the other end of the round-square cylinder body is connected with the expansion section through the convergent section; the first adjustable plate is arranged in an interlayer inner cavity of a first wall plate; the second adjustable plate is arranged in the interlayer inner cavity of a second wall plate; the third adjustable plate is arranged in the interlayer inner cavity of a third wall plate; the fourth adjustable plate is arranged in the interlayer inner cavity of a fourth wall plate; and each actuating cylinder is used for controlling the adjustable plate to extend or retract correspondingly. According to the binary spray pipeexhaust system with the pitching yaw function, the structure is simple, the reliability is high; the high-temperature and high-speed fuel gas directions in the spray pipe are not changed during pitching and yaw, so that a pneumatic performance loss is small.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a binary nozzle with pitch and yaw functions and an aircraft with the same. Background technique [0002] The working envelope range of aero-engines is getting wider and wider, and the range of drop pressure ratio reaches dozens, so a nozzle with stronger expansion capability is needed; in order to improve the stealth ability, it is necessary to reduce the temperature of the high-temperature wall of the nozzle and reduce the temperature of the tail of the nozzle. The visible area reduces the infrared radiation performance; in order to improve combat maneuverability, the nozzle needs to realize vector deflection. [0003] Compared with the axisymmetric nozzle, the binary nozzle has a stronger air mixing ability, which can reduce the wall temperature of the nozzle, and also reduce the visible area and infrared radiation performance. [0004] The existing pre-researched binary nozz...

AI Technical Summary

Problems solved by technology

[0004] The existing pre-researched binary nozzle can realize the pitch function by adjusting the deflection of the upper and lower wall panels, but the pitch function achieved by the high-speed airflow deflection causes a large loss of aerodynamic performance, and the yaw function and the adjustable area ratio cannot be realized. Has a stronger expansion ability

[0005] Therefore, in order to make up for the shortcomings of the binary nozzle that cannot yaw, the loss of aerodynamic performance, and the limited expansion capacity, it is necessary to design a nozzle that does not affect the high-speed gas flow direction of the nozzle, can display pitch and yaw functions, and has an adjustable area ratio. And can improve the expansion capacity of the new pitch yaw binary nozzle

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