NOISE ATTENUATING MEMBER FOR NOISE ATTENUATING UNITS IN ENGINES

摘要

A noise attenuating member for use in a noise attenuating unit for an engine system is disclosed, comprising a core having a hollow interior cavity and an interior surface defining a plurality of radial openings and a porous material disposed about an exterior surface of the core. The porous material may be a strip coupled to the exterior of the core and wrapped around the core to form a plurality of layers of porous material. A noise attenuating unit is disclosed, comprising an interior cavity, a housing having a first port, a second port, and an attenuation member disposed within the interior cavity. A method of making a sound damping member includes providing a core having a hollow cavity and radial openings, providing a strip of porous material, and wrapping the strip of porous material in the core to form one or more layers. .