Acoustic resonator

F - Mech Eng,Light,Heat,Weapons – 24 – F

Patent

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F24F 13/24 (2006.01) G10K 11/172 (2006.01)

Patent

CA 2237859

A resonator as disclosed that has a plurality of resonating chambers having a predetermined size that attenuate sound in a conduit. The resonator may be disposed along the inner periphery of the conduit. Alternatively, it may be disposed on the outside periphery of the conduit so that flow through the conduit may be unrestricted. Additionally, the resonator may include a honeycomb fairing to attenuate sound at higher frequencies. Also disclosed is a system in which a resonator may be located within the conduit of an HVAC system to attenuate the sound.

La présente invention concerne un résonateur comportant une pluralité de chambres de résonance d'une taille prédéfinie et atténuant le bruit dans une gaine. Ce résonateur peut être monté le long du pourtour intérieur de la gaine. Selon une autre réalisation, il peut être monté sur le pourtour extérieur de la gaine de façon à ne pas gêner la circulation dans la gaine. En outre, le résonateur peut comporter un carénage nid d'abeille permettant d'atténuer les bruits des fréquences les plus élevées. L'invention concerne également un système selon lequel il est possible de monter un résonateur à l'intérieur de la gaine d'un système de chauffage, ventilation et climatisation pour atténuer le bruit.

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