Muffler

The utility model provides a muffler which include casing, intake pipe, outlet duct and with the connecting pipe that the intake pipe links to each other, at least, include first baffle, second bafflein the casing and be located first baffle with hull nurse between the second baffle is the chamber now, the connecting pipe is equipped with to extend goes into the hull nurse is the extension of intracavity now, muffler is still including filling the hull nurse is the glass fiber of intracavity now. So set up, increased the surface area of hindering nature noise elimination component, improved the absorption efficiency of sound wave to reinforcing hull nurse is the transfer loss in chamber now, has realized increase noise elimination volume. 种消声器，其包括壳体、进气管、出气管以及与所述进气管相连的连接管，所述壳体内至少包括第挡板、第二挡板以及位于所述第挡板与所述第二挡板之间的赫尔姆兹腔，所述连接管设有延伸入所述赫尔姆兹腔内的延伸部，所述消声器还包括填充在所述赫尔姆兹腔内的玻璃纤维。如此设置，增加了阻性消声元件的表面积，提高了声波的吸收效率，以增强赫尔姆兹腔的传递损失，实现了增大消声量。