The invention discloses a two-dimensional air inlet channel with a telescopic isolation section, and belongs to the technical field of aircrafts. Comprising a wedge plate assembly, a telescopic isolation section, a diffusion section, a left-right driver and a lip mask. The lower ends of the wedge plate assembly and the diffusion section are respectively hinged with the machine body, and the upper ends are respectively hinged with the two ends of the telescopic isolation section; the distance between the telescopic isolation section and the lip cover is the throat height Hth, the wedge plate assembly and the diffusion section are driven by the left driver and the right driver to rotate around the hinge point at the lower end, the length of the telescopic isolation section and the throat height Hth are adjusted, and the aircraft can keep high aerodynamic performance under different incoming flow Mach numbers. According to the two-dimensional air inlet channel with the telescopic isolation section, the length of the isolation section and the height of the throat can be adjusted under different incoming flow Mach numbers, so that shock waves with different intensities are correspondingly stabilized, the requirement for the throat area of the air inlet channel in a wide speed range is met, and the pneumatic performance of the two-dimensional air inlet channel is greatly improved.

    本发明一种隔离段可伸缩式二元进气道,属于飞行器技术领域;包括楔板组件、可伸缩式隔离段、扩压段、左右驱动器和唇罩;所述楔板组件和扩压段的下端分别与机身铰接,上端分别与可伸缩式隔离段的两端铰接;所述可伸缩式隔离段与唇罩之间的距离为喉道高度Hth,通过左右驱动器分别驱动楔板组件和扩压段绕下端铰接点转动,对可伸缩式隔离段的长度和喉道高度Hth进行调节,使得飞行器在不同来流马赫数下均能保持较高的气动性能。应用本发明技术方案的隔离段可伸缩式二元进气道,能够在不同来流马赫数下调整隔离段的长度与喉道的高度,从而对不同强度的激波起到相应地稳定作用,并满足宽速域下进气道的喉道面积需求,大幅度提高了二元进气道的气动性能。


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    Title :

    Two-dimensional air inlet channel with telescopic isolation section


    Additional title:

    一种隔离段可伸缩式二元进气道


    Contributors:
    BAI LU (author) / DENG WENJIAN (author) / ZHOU LI (author) / WANG ZHANXUE (author) / ZHANG XIAOBO (author) / SHI JINGWEI (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F02K JET-PROPULSION PLANTS , Strahltriebwerke



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