The invention relates to an air inlet for an aircraft nacelle, the air inlet including a lip 10 and a front frame, which together form a duct with D-shaped section receiving hot air. The air inlet ischaracterized in that the front frame is arranged in an advanced position inside the lip; the lip has de-icing grooves 12, which communicate with the duct 2 and extend essentially downstream of the front frame; downstream of the front frame, outside of the de-icing grooves, the lip has perforated zones 13 provided with sound absorption holes 16; the air inlet includes a foil 11, which hermeticallyseals the de-icing grooves and is provided with sound absorption holes 17 facing the perforated zones; the air inlet comprises acoustic panels 20 inside the lip 10 downstream of the front frame 1. The advanced position of the front frame, due to the de-icing grooves which ensure the de-icing of the lip downstream of the front frame, allows the acoustic treatment surface of the air inlet to be increased.

    本发明涉及用于飞行器短舱的进气口,包括唇缘(10)和前部框架,它们一起形成具有D形截面的管道,该管道接收热空气,其特征在于:前部框架布置在唇缘内部的靠前位置;唇缘具有除冰凹槽(12),其与具有D形截面的管道(2)连通、基本上在前部框架下游延伸;在前部框架下游、在除冰凹槽之外,唇缘具有穿孔区域,穿孔区域(13)设有吸声孔(16);进气口包括箔片(11),箔片气密地密封除冰凹槽并设有面向穿孔区域的吸声孔(17);进气口包括在唇缘(10)内、在前部框架(1)下游的声学面板(20)。前部框架的靠前位置允许进气口的声学处理表面增加并通过除冰凹槽的存在而成为可能,除冰凹槽确保了前部框架下游唇缘的除冰。


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    Title :

    AIR INTAKE, NACELLE, PROPULSION ASSEMBLY AND AIRCRAFT WITH GROOVED LIP


    Additional title:

    具有带沟槽唇缘的进气口、短舱、推进组件、和飞行器


    Contributors:

    Publication date :

    2021-03-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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