Reactive acoustic silencer

Details Reactive acoustic silencer Reactive acoustic silencer

F - Mech Eng,Light,Heat,Weapons

24

F

F24F 13/24 (2006.01) F01D 25/30 (2006.01) F01N 1/00 (2006.01) F01N 1/02 (2006.01) F02C 7/045 (2006.01) F02M 35/12 (2006.01) F16L 55/033 (2006.01) F01N 13/02 (2010.01) F01N 13/04 (2010.01) F01N 1/24 (2006.01) F01N 7/02 (2006.01) F01N 7/04 (2006.01)

Patent

CA 2164370

An acoustic duct silencer is disclosed having opposed sidewall baffles which are disposed in a duct such that a cavity is defined between the baffles and the adjacent duct sidewalls, the space between the baffles bordering a passageway in the duct for the flow of a fluid medium therethrough. Each baffle features an array of generally parallel, spaced-apart elongate slots which substantially span the vertical or horizontal breadth of the baffles. The baffles preferably have a relatively large effective thickness so that the slots formed therein have a significant depth to them. In this manner, an integral array of resonators are provided having a significant slot or throat depth for the attenuation of low frequency sound.

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