Noise attenuating member for noise attenuating units in engines

摘要

Noise attenuating members for use in noise attenuating units for engine systems are disclosed that include a core, having an interior surface defining a hollow inner cavity and a plurality of radial openings, and a porous material disposed about an exterior surface of the core. The porous material may be a strip which is engaged with 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 to include a housing, having an internal cavity, first port, and second port, and an attenuating member disposed within the internal cavity. A method of making a noise attenuating member is disclosed that includes providing a core having an hollow cavity and radial openings, providing a strip of porous material, and wrapping the strip of porous material about the core to form one or more layers.

主权项

1. A noise attenuating member comprising:
a core defining a hollow cavity for fluid flow therethrough, the core being a hollow cylindrical grid defining a plurality of radial openings; and a porous material disposed about an exterior of the core; wherein fluid flow through the hollow cavity and the radial openings passes through the porous material.