Patent ID: 6109387
Filing Date: 2000-08-29
Classification: F01N

Abstract:
An air exhaust silencer comprising:a hollow cylindrical housing having an air inlet means at one end of said housing for attachment to an air exhaust and at least one exhaust port,a detachably mounted cylindrical shaped cartridge axially arranged within said housing,said cartridge comprising a plurality of contiguous layers of wire mesh and resilient porous material arranged sequentially in the path of movement of all of the air flow under pressure through the silencer, anda cylindrical shaped insert for fitting into and axially aligned within said cartridge,a cylindrical shaped liner built in as an integral part of the cartridge assembly and axially aligned within said cartridge,said insert and liner comprising a cylinder or wire mesh, the mesh size being the same or larger than the wire mesh of said cartridge, said insert and liner comprising a plurality of contiguous layers of wire mesh,said layers of resilient porous material of said cartridge being confined between adjacent layers of wire mesh deflecting under pressure surges of the air passing therethrough to substantially prevent premature loading of the porous material and excessive flexing and disintegration thereof.