An aeronautical propulsor has a core engine (11), one or more open rotors (23,24) driven by the engine (11), and a nacelle (21) which encloses the core engine (11) and provides an aerodynamic external surface. At least a portion of the external surface of the nacelle (21) is acoustically treated to attenuate noise produced by the open rotors (23,24).


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    Title :

    Attenuation of open rotor noise


    Additional title:

    Schalldämpfung offener Rotoren
    Atténuation du bruit d'un rotor ouvert


    Contributors:

    Publication date :

    2017-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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