The invention discloses a low-induced-resistance helicopter rotor wing with a sweepback anhedral wingtip. The low-induced-resistance helicopter rotor is characterized in that a winglet is additionally arranged at one end, far away from the rotating center, namely a wingtip, of a rotor wing, the chordwise length of the root of the winglet is smaller than that of the tip of a main wing, the chord line of the tip of the winglet is lower than the rotary plane of the main wing, namely that the winglet has an anhedral angle, and the winglet twists inwards by a certain angle, so that the front edge of the winglet sweeps backwards. The low-induced-resistance helicopter rotor wing with the sweepback anhedral wingtip, which is provided by the invention, is entirely new, and the most significant innovation point lies in the aerodynamic layout of the wingtip. The rotor wing has the obvious characteristic of low hovering induced resistance, which is helpful for improving the hovering efficiency of helicopters.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Low-induced-resistance helicopter rotor wing with sweepback anhedral wingtip


    Beteiligte:
    WANG CHUAN (Autor:in) / XIE JINGFENG (Autor:in)

    Erscheinungsdatum :

    2015-08-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



    Large sweepback combined helicopter rotor blade

    CAO YAXIONG / FAN FENG / LIN YONGFENG et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Sweepback and wing taper

    Falkner, V.M. | Engineering Index Backfile | 1950


    Wing sweepback changing mechanism

    WANG CHEN / SHEN XING / LIU QUAN et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Sweepback and Wing Taper

    Falkner, V.M. | Emerald Group Publishing | 1950


    Variable sweepback rotor blade

    CHEN XI / SHI NAIRUI / ZHAO QIJUN et al. | Europäisches Patentamt | 2022

    Freier Zugriff