The invention discloses a lift-adjustable helicopter rotor blade with anti-icing and deicing functions and a working method, and belongs to the field of energy and power engineering and wing anti-icing and deicing. The blade comprises a wing-shaped shell, a heating cavity, a jet flow oscillator, a connecting pipe, an air outlet, a hot air conveying pipe, a cold air inlet pipe, an ejector, a spraying pipe and a flow guide opening. According to the jet flow oscillator, the characteristics of enhanced heat transfer and fluid control are utilized at the same time, the characteristic that the jet flow oscillator can generate large-range high-frequency strafing under the condition that moving parts are not needed is utilized, fluid control over the upper surfaces of the blades is achieved, and therefore the effect of lifting force is achieved; and high-temperature gas from a turboshaft engine gas compressor is used for efficiently heating the front edge of the helicopter blade in a large area, so that the anti-icing and deicing effects are achieved. And meanwhile, the high-temperature gas after heat exchange leaves the blade from a gas outlet of the second jet flow oscillator positioned at the upper part of the blade.

    一种具有防除冰功能的升力可调直升机旋翼叶片及工作方法,属于能源与动力工程及翼型防冰除冰领域。该叶片包括翼型壳体、加热空腔、射流振荡器、连接管、出气口、热输气管、冷进气管、引射器、喷管、导流口。本发明中射流振荡器同时利用了强化传热和流体控制两方面的特性,利用射流振荡器在不需要运动部件的情况下就能产生大范围高频扫射的特性实现叶片上表面流体控制从而达到提升升力的效果,并利用来自涡轴发动机压气机的高温气体大面积地对直升机叶片前缘给予高效的加热,以达到防冰除冰的效果。同时,换热后的高温气体将从位于叶片上部的第二射流振荡器出气口离开叶片。


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    Title :

    Lift-adjustable helicopter rotor blade with ice preventing and removing functions and working method


    Additional title:

    具有防除冰功能的升力可调直升机旋翼叶片及工作方法


    Contributors:
    HE WEIFENG (author) / WANG CHEN (author) / LOU ZEYU (author) / ZHANG JIRONG (author) / DAI SHUO (author) / HAN DONG (author) / PU WENHAO (author)

    Publication date :

    2023-03-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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