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.
ATTÉNUATEUR DU BRUIT GÉNÉRÉ PAR UNE POMPE CENTRIFUGE
ATTENUATOR FOR NOISE GENERATED BY A CENTRIFUGAL PUMP
DÄMPFER FÜR DURCH EINE ZENTRIFUGALPUMPE ERZEUGTES RAUSCHEN
2024-02-14
Patent
Electronic Resource
French
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 |