F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
172/22
F01N 1/06 (2006.01) F01N 13/18 (2010.01) F01N 1/10 (2006.01) F16L 55/027 (2006.01)
Patent
CA 1118691
SILENCER DEVICE ABSTRACT OF THE DISCLOSURE A silencer device for attenuating fluid borne noise has a flow through housing with an open upstream end for the entrance of a fluid into the housing and a coaxial open downstream end for exhausting the fluid from the housing. An entrance header formed of a plurality of spaced apart intersecting elongated members defining a plurality of rectangular entrance apertures, each elongated member having a V-shaped transverse cross-section shape and oriented with its apex pointed in an upstream direction, is coextensively disposed over the upstream open end. An exhaust header also formed of a plurality of spaced apart intersecting elongated members defining a plurality of rectangular exhaust apertures, each elongated member having a V-shaped transverse cross-section shape and oriented with its apex pointed in a downstream direction, is coextensively disposed over the downstream open end. A plurality of open ended fluid flow tubes having perforated longitudinal walls extends between the entrance header and exhaust header. Each flow tube has one of its open ends in registration with a different one of the rectangular entrance apertures of the entrance header. Likewise, the opposite open end of each flow tube is in registration with a different one of the rectangular exhaust apertures of the exhaust header. The interior of the housing is packed with a sound absorbing material to surround the perforated longitudinal walls of the flow tubes.
317162
American Air Filter Company Inc.
Swabey Ogilvy Renault
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