The invention relates to a nacelle structure (10) surrounding a blower, including an air inlet sleeve (100) having an inner surface (100A) defining an air supply channel; and at least one ring (22) arranged in said air inlet sleeve and selectively movable between a deployed position in which said ring is radially inwardly moved from the inner surface in order to provide an obstacle to the shock waves from the blower, and a retracted position in which the ring is radially outwardly moved from the deployed position such as to become flush with the inner surface and thus reconstitute the air supply channel.


    Access

    Download


    Export, share and cite



    Title :

    Acoustically optimized air inlet sleeve


    Contributors:

    Publication date :

    2015-09-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F02K JET-PROPULSION PLANTS , Strahltriebwerke



    Acoustically optimized air inlet

    ROMANO PASCAL / BONNEAU VIRGINIE / SENSIAU CLAUDE | European Patent Office | 2018

    Free access

    ACOUSTICALLY OPTIMIZED BEARING UNIT

    KRUPPA MARTIN | European Patent Office | 2021

    Free access

    Acoustically diffusive auxilary power unit inlet doors

    REHMAN FAROOQ / NAPIER JAMES C | European Patent Office | 2017

    Free access

    ACOUSTICALLY DIFFUSIVE AUXILARY POWER UNIT INLET DOORS

    REHMAN FAROOQ / NAPIER JAMES C | European Patent Office | 2015

    Free access