Disclosed is an acoustic attenuation device for an electromechanical device through which a gas stream passes which is capable of propagating acoustic waves. The device includes inlet ports and outlet ports for a gas stream, in particular for the purpose of releasing the gas stream into the atmosphere. The device includes a generally annular channel defining a substantially circular flow path for the gas stream about a main axis between the inlet and outlet ports, and a plurality of acoustic attenuator elements which are tuned to an attenuation resonance frequency with an associated attenuation frequency band and are distributed in series circularly along the channel so as to interact with the gas stream flowing in the channel, the acoustic attenuator elements being formed by cavities of quarter-wave resonators.


    Access

    Download


    Export, share and cite



    Title :

    ATTÉNUATEUR DU BRUIT GÉNÉRÉ PAR UNE POMPE CENTRIFUGE


    Additional title:

    ATTENUATOR FOR NOISE GENERATED BY A CENTRIFUGAL PUMP
    DÄMPFER FÜR DURCH EINE ZENTRIFUGALPUMPE ERZEUGTES RAUSCHEN


    Contributors:

    Publication date :

    2024-02-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



    ATTENUATEUR DU BRUIT GENERE PAR UNE POMPE CENTRIFUGE

    GUERRY PASCAL | European Patent Office | 2022

    Free access

    ATTÉNUATEUR DU BRUIT GÉNÉRÉ PAR UNE POMPE CENTRIFUGE

    GUERRY PASCAL | European Patent Office | 2022

    Free access

    DISPOSITIF ATTENUATEUR DE BRUIT EN ROULAGE POUR PNEU

    ROTY GAEL | European Patent Office | 2018

    Free access

    DISPOSITIF ATTENUATEUR DE BRUIT EN ROULAGE POUR PNEU

    ROTY GAEL | European Patent Office | 2016

    Free access

    DISPOSITIF ATTENUATEUR DE BRUIT EN ROULAGE POUR PNEU

    ROTY GAEL | European Patent Office | 2016

    Free access