The invention relates to the field of unmanned aerial vehicle equipment, and discloses a fixed-wing wingtip ducted lift fan system with a high lift characteristic. The fan comprises a hub, fan blades and a duct, the hub comprises a rotating part and a fixed part, the rotating part is rotationally arranged on the fixed part, and the bottom of the fixed part is conical; the fan blades are arranged on the rotating part; the duct is annular, an airflow channel is formed in the middle area of the duct, the fan blades and the hub are arranged in the first airflow channel, and the ends, away from the rotating part, of the fan blades are connected to the duct; and a second airflow channel is arranged in the side wall of the duct. According to the characteristics of lift fan application scenes, fan blade airfoils and the overall structure of a fan system are optimally designed according to internal and external flow field characteristics of a duct, it is guaranteed that an unmanned aerial vehicle can normally take off, land and hover under the conditions that the altitude is smaller than or equal to 6000 m and the temperature ranges from-40 DEG C to 50 DEG C, and flight control can be normally conducted when the maximum level flight speed of the unmanned aerial vehicle is about 150 km/h; meanwhile, the resistance of the ducted fan is minimum when the unmanned aerial vehicle flies.

    本发明涉及无人机设备领域,公开了一种具有高升力特性的固定翼翼尖涵道升力风扇系统。其包括轮毂、扇叶和涵道,轮毂包括转动部和固定部,转动部转动设置于固定部,固定部的底部成锥形;扇叶设置于转动部;涵道为环形,涵道的中间区域设置有气流通道,扇叶和所述轮毂设置于第一气流通道中,且扇叶上远离转动部的一端连接于涵道;涵道的侧壁内设置有第二气流通道。本发明针对升力风扇应用场景特点,根据涵道内、外流场特性对风扇叶片翼型及风扇系统总体结构进行优化设计,保证无人机能够在海拔≤6000m高度、温度‑40℃‑+50℃条件下正常起降和悬停,且在无人机最大平飞速度150km/h左右时能正常进行飞行控制,同时无人机飞行时涵道风扇阻力最小。


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    Title :

    Fixed-wing wingtip ducted lift fan


    Additional title:

    一种固定翼翼尖涵道升力风扇


    Contributors:
    HU XIAOFENG (author) / XU JUN (author) / LUO GUIHUO (author)

    Publication date :

    2022-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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