An auxiliary power unit for an aircraft includes a turbine engine. An inlet includes an opening and a passageway between the opening and the turbine engine. An acoustic splitter is supported within the passageway for attenuating noise within the inlet. An inlet door is movable between a closed position and a fully open position. A portion of the inlet door aligns with a part of the passageway in at least a first position and divides the passageway to deflect ice and noise in at least a second position. An air inlet and a method are also disclosed.


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    Title :

    ACOUSTIC CONTROLLED ICE DEFLECTING AUXILIARY POWER UNIT INLET SYSTEM


    Additional title:

    AKUSTISCH GESTEUERTES EINLASSSYSTEM FÜR EISABLENKUNGSHILFSSTROMEINHEIT
    SYSTÈME D'ADMISSION D'UN GROUPE AUXILIAIRE DE PUISSANCE À DÉVIATION DE GLACE À COMMANDE ACOUSTIQUE


    Contributors:

    Publication date :

    2019-05-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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