The invention discloses a wide-speed-range high-stealth backpack type supersonic air inlet channel, which relates to the technical field of design of air inlet and exhaust systems of aircrafts, and is technically characterized in that the integral form of the air inlet channel is a backpack type, and the air inlet channel comprises a throat channel, a lip outer cover, a nose front body, a DSI bulge, an S-shaped air inlet channel and an engine inlet. The lip outer cover is laterally beveled, so that electromagnetic reflection is concentrated in a specific area, the forward RCS is reduced, the folding point position of the M-shaped lip and the radius and thickness of the front edge of the lip are changed along the axis, the divergence angle and the like in the axial direction, analysis vortexes during low-speed flight and shock wave induced separation during high-speed flight can be effectively avoided, and the reliability of the aircraft is improved. And good high-low-speed air inlet performance and full-aircraft aerodynamic performance are achieved.

    本发明公开了一种宽速域高隐身背负式超声速进气道,涉及飞行器进排气系统设计技术领域,其技术要点为:进气道的整体形式为背负式,包括喉道、唇口外罩、机头前体、DSI鼓包、S弯进气道和发动机入口。本发明中唇口外罩侧向斜切,使得电磁反射集中在特定区域,减少了前向RCS,M型唇口折点位置、唇口前缘半径和厚度沿轴线、扩张角等沿轴向是变化的,可有效避免低速飞行时出现分析旋涡、高速飞行时出现激波诱导分离,具有良好的高低速进气性能和全机气动性能。


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    Title :

    Wide-speed-range high-stealth backpack type supersonic air inlet channel


    Additional title:

    一种宽速域高隐身背负式超声速进气道


    Contributors:
    LIU GANG (author) / ZHONG SHIDONG (author) / HUANG JIANGTAO (author) / CHEN LILI (author) / CHEN XIAN (author) / HE CHENGJUN (author) / YU LONGZHOU (author) / CHEN QISHENG (author)

    Publication date :

    2023-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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