AERODYNAMIC NOISE SILENCER Russian patent published in 1998 - IPC

FIELD: mechanical engineering. SUBSTANCE: silencer has cylindrical housing made of porous material, segments also made of porous material are installed inside housing over its length at angle α = 30^°...90^° relative to inner diameter of housing at distance between segments equal to l=0.25-0.5 of housing inner diameter. Segments are arranged relative to each other in diametral section of housing at angle of 120 degrees. It has also intake chamber in form of diffuser with inlet branch pipe arranged and housing inlet. EFFECT: reduced hydraulic resistance of silencer. 2 dwg