The invention discloses a variable-lip ducted fan for a tilting ducted aircraft. The variable-lip ducted fan comprises an elastic ducted front lip, a rear-section rigid ducted shell, a plurality of front lip variable supporting structures, a driving ring and a plurality of hydraulic driving devices. The front lip variable supporting structure comprises a front lip supporting framework, a fixing support and a connecting rod. The front lip supporting framework is fixedly connected with the inner molded surface of the elastic duct front lip and plays a role in supporting and keeping the geometric pneumatic shape of the elastic duct front lip; the fixed bracket is arranged on the rear-section rigid duct shell and is hinged with the front lip supporting framework; one end of the connecting rod is hinged to the driving ring, and the other end is hinged to the front lip supporting framework so that the front lip supporting framework can rotate around the fixing support. The driving ring is hinged to the hydraulic driving device and driven by the hydraulic driving device to move up and down, and then the connecting rod is driven to complete outward expansion or backward contraction of the elastic duct front lip. The power requirements of aircrafts in different modes are met, good hovering and cruising efficiency is achieved, and the endurance of the aircrafts is effectively prolonged.

    本发明公开了一种用于倾转涵道飞行器的可变唇口涵道风扇,包括弹性涵道前唇、后段刚性涵道外壳、多个前唇可变支撑结构、驱动环和多个液压驱动装置;前唇可变支撑结构包括前唇支撑骨架、固定支架和连杆;前唇支撑骨架与弹性涵道前唇的内型面固连,起到支撑并保持弹性涵道前唇几何气动外形的作用;固定支架安装在后段刚性涵道外壳上,与前唇支撑骨架铰接;连杆一端与驱动环铰接,另一端与前唇支撑骨架铰接,能够使前唇支撑骨架绕固定支架旋转;驱动环与液压驱动装置铰接,受液压驱动装置的驱动上下移动,进而带动连杆完成弹性涵道前唇向外扩展或向回收缩;本发明满足不同模式飞行器的动力需求,具有良好的悬停和巡航效率,有效增加了飞行器的续航。


    Access

    Download


    Export, share and cite



    Title :

    Variable lip ducted fan for tilting ducted aircraft


    Additional title:

    一种用于倾转涵道飞行器的可变唇口涵道风扇


    Contributors:
    LIU YAOLONG (author) / ZHANG JIECHAO (author) / XU SHANGRU (author) / ZHENG YAO (author)

    Publication date :

    2024-06-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Tilting ducted fixed-wing aircraft

    SUN YAN / QIAN XIANYUN / XING RONG | European Patent Office | 2022

    Free access

    Engine hanger for tilting ducted aircraft

    ZONG NING / ZHU LEI / LI HUA | European Patent Office | 2022

    Free access

    VTOL AIRCRAFT WITH TILTING ROTORS AND TILTING DUCTED FANS

    GRONINGA KIRK L / ROBERTSON DANIEL B | European Patent Office | 2025

    Free access

    VTOL aircraft with tilting rotors and tilting ducted fans

    GRONINGA KIRK L / ROBERTSON DANIEL B | European Patent Office | 2025

    Free access

    VTOL aircraft with tilting rotors and tilting ducted fans

    GRONINGA KIRK L / ROBERTSON DANIEL B | European Patent Office | 2021

    Free access