S-shaped binary spraying pipe having vector deflection function

Abstract

The invention relates to the field of a spraying pipe of an aircraft engine, in particular to an S-shaped binary spraying pipe having a vector deflection function. The spraying pipe comprises a cylindrical barrel, a round-to-square section, an S-shaped tube, a spraying pipe outlet adjusting mechanism and a side wall; the front end of the round-to-square section is connected with the cylindrical barrel, the rear end is connected with the S-shaped tube, an outlet in the rear end of the S-shaped tube is connected with the spraying pipe outlet adjusting mechanism; an upper adjusting plate and a lower adjusting plate of the spraying pipe outlet adjusting mechanism are respectively hinged to the rear end outlet of the S-shaped tube; the side wall is fixed in the rear end outlet of the S-shaped tube; an upper actuating tube drives the upper adjusting plate, and a lower actuating tube drives the lower adjusting plate. By adopting the S-shaped binary spraying pipe, the function for adjusting the outlet area of the spraying pipe and the deflecting the vector when the engine stays at different work states can be realized, the weakness that the existing S-shaped spraying pipe is a spraying pipe that cannot be adjusted can be overcome, and the spraying pipe has advantages of simple structure, light weight and high reliability.

Description

technical field [0001] The invention relates to the field of aeroengine nozzles, in particular to an S-curved binary nozzle with a vector deflection function. Background technique [0002] With the continuous improvement of aircraft's requirements for engine stealth and maneuverability, the engine is required to have good infrared radiation characteristics and a large throat adjustment range, and at the same time achieve a certain angle of vector deflection. The traditional vectoring nozzle can realize the adjustment of nozzle throat area and vector deflection function, but it cannot realize the low infrared radiation intensity value of the engine, and the stealth effect is poor. The S-curved binary nozzle with a fixed structure can completely shield the high-temperature components inside the engine and has good infrared stealth performance, but it cannot meet the adjustment of the nozzle outlet area and the vector deflection function of the engine under different working co...

AI Technical Summary

Problems solved by technology

The traditional vector nozzle can realize the adjustment of the nozzle throat area and the vector deflection function, but it cannot realize the low infrared radiation intensity value of the engine, and the stealth effect is poor

The S-curved binary nozzle with a fixed structure can completely shield the high-temperature components inside the engine, and has good infrared stealth performance, but it cannot satisfy the adjustment of the nozzle outlet area and the vector deflection function of the engine under different working conditions.

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