Compound damping exhaust bellows

The utility model discloses a compound damping exhaust bellows, including the bellows body, the pipe end of bellows body both sides is equipped with flange, follows bellows body circumference is the ring -type and is provided with a plurality of S -shaped ripple that axial cross section is the S -shaped, a plurality of S -shaped ripple is connected as an organic wholely along the axial, the S -shaped ripple divide into and is located its root, connection the envers of bellows body, and be located the positive ripples at its top, sun thickness of convolution degree is greater than the thickness of envers. 本实用新型公开种复合减振排气波纹管，包括波纹管本体，所述波纹管本体两侧的管端设有连接法兰，沿所述波纹管本体周向呈环状设置有轴向截面呈S形的若干个S形波纹，所述若干个S形波纹沿轴向连接为体，所述S形波纹分为位于其根部、连接所述波纹管本体的阴波，及位于其顶部的阳波，所述阳波厚度大于所述阴波的厚度。