The invention discloses a rotor wing duct for a vertical take-off and landing aircraft, which is used for surrounding a rotor wing of an electric propulsion engine and fixedly mounting the rotor wing duct on the upper wing surfaces of an integral flaperon and a full-motion horizontal tail of the vertical take-off and landing aircraft. The integral flaperon can tilt between a horizontal propelling direction and a vertical propelling direction along with the deflection of the integral flaperon and the full-motion horizontal tail; when the diameter of the rotor wing is D, the contour line of the inner section of the rotor wing duct is an ellipse conforming to the following functions: the parameter a is equal to 0.5010-0.5041 times of the diameter D of the rotor wing; and the parameter b is equal to 0.5014 to 0.5044 times of the diameter D of the rotor wing. According to the rotor wing duct, airflow acceleration of the duct lip can be achieved, a suction peak is formed, synergistic pulling force is generated, the output power of an engine is reduced, and the performance index bottleneck of an original independent rotor wing is broken through through speed-increasing internal flow generated by rotation of the rotor wing.
本发明公开了一种用于垂直起降飞机的旋翼涵道,用于围绕电推进发动机的旋翼将其固定安装在垂直起降飞机的整体式襟副翼和全动平尾的上翼面上,并可随着所述整体式襟副翼和全动平尾的偏转而在水平推进方向和垂直推进方向之间倾转;当旋翼直径为D时,所述旋翼涵道的内剖面的轮廓线为符合下述函数的椭圆:其中参数a等于0.5010‑0.5041倍的旋翼直径D;参数b等于0.5014‑0.5044倍的旋翼直径D。本发明的旋翼涵道,可以通过旋翼的旋转所产生的增速内流,实现涵道唇口的气流加速,形成吸力峰,产生增效拉力,降低发动机输出功率,突破原有单独旋翼的性能指标瓶颈。
Rotor wing duct for vertical take-off and landing aircraft
一种用于垂直起降飞机的旋翼涵道
2022-07-29
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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