The invention relates to mechanical engineering, in particular engine building, namely the multi-chamber, in particular three-chamber silencer exhaust of internal combustion engines (hereinafter referred to DIC). The multi noise exhaust gas exhaust silencer ICE wheeled vehicle, in particular a passenger car, comprising inlet and outlet pipes connected to the cylindrical body of oval cross-section to its end wall, wherein the inlet conduit comprises an outer connecting portion for connecting a cavity of the muffler to the exhaust pipe runs internal combustion engine exhaust system and partially perforated inner portion intersecting dividing the muffler chamber into three chambers ( -final year, intermediate and outlet) transverse perforated baffle, the exhaust conduit comprising partially perforated inner portion intersecting named partitions and an outer portion, a tail pipe connecting ending free open cut. The distinguishing feature is that the inner pipe sections are arranged axially with respect to the axis of the body axis of the muffler, the distance between them is (0,63 ± 0,01) D / 2 where D - the size of the major axis of the oval cross section of the silencer housing, the mentioned portions pipelines have the same internal diameter of the passage cross section, the inlet conduit is provided with the scatterer low frequency resonance vibrations in the lowest natural resonant cavity longitudinal modes of the gas volume of the inlet tube wire, made in the form covered by the cover belt through holes made in the wall; inner portion of the inlet conduit mounted in the chamber of the muffler formed by an end wall at which the inlet pipe is fixed and adjacent thereto a perforated partition, the total flow area through the holes in the perforation zone is 0.6 ± 0.02 of the cross sectional area of the inner passage portion of the intake conduit, wherein the open section of the inner portion of the intake duct, taking into account its dynamic extension connected to an additional shear hesitate eysya mass of gas is arranged in the inlet chamber near the plane perpendicular to the cross section of the muffler body, passing through the geometric center of the total volume of the cavities inlet and intermediate chamber open section of the inner portion of the exhaust conduit is offset from the center of the cavity volume of the outlet chamber, in which it is located, in the direction of the perforated baffle bounding the outlet chamber, an amount (0,2 ... 0,4) d, where d - diameter of the passage section of the inner portion of the exhaust pipe, the belt perforations internal wall ennego exhaust pipe portion arranged between perforated partition walls and intersects the geometric center of the cavity volume of the muffler chamber, the total flow area of said belt perforations is 1,0 ± 0,05d by the passage section area of the inner portion of the exhaust pipe, the total area of the openings in the partition, bounding the inlet chamber, is 1.75 ± 0.05 from the area of the passage cross section of the inner portion of the intake duct, and the total area Hole s in the partition delimiting the outlet chamber is 0.8 ± 0.05 of the cross sectional flow area of the inner portion of the exhaust pipe. Through the use of a utility model, it is possible at low cost to manufacture quickly learn a new, more efficient and better design of exhaust muffler that is acceptable for mass use in passenger cars. 1 SP f-ly floor. mod., 22 yl.
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