Noise reducing exhaust device

A silencing exhaust unit is composed of shell, two empty cavities arranged at both ends isolated by partition with small holes, gas inlet tube, gas outlet tube, and vortex filters with vortex tubes in it. Said empty cavities and vortex filters are sequentially and alternatively arranged in the shell. Its advantages are low exhaust noise and low back pressure and power loss of engine. 一种消声排气装置，涉及发动机排气装置消音器。由壳体，空腔、进气管、排气管、涡流滤波器组成。壳体内两端为空腔，中间用隔板分开，依次交错设置空腔、涡流滤波器，隔板上开有小孔，与涡流滤波器内设置的涡流管相通。多个独立的串联的消音器的安装方向是；U形隔板朝进气管放置，隔板朝排气管方向放置而串联而成。空腔内靠壳体部置有吸声材料。本发明既能大幅度降低发动机排放的噪声，又能明显降低发动机的背压、功率损失。本发明结构简单，排气消声效果好，是排气消声的理想产品。