| 摘要 |
PURPOSE: A muffler for vehicle is provided to reduce the exhaust pressure and noise and to improve the output of an engine. CONSTITUTION: A muffler for vehicle comprises a case(100), an inner pipe(110), a first inner pipe guard(121), a second inner pipe guard(122), an inlet pipe(130) and an outlet pipe(140). The inner pipe is built-in in the case in a straight pipe shape. A plurality of pitch holes(111) is formed in the surface of the inner pipe. The first inner pipe guard surrounds the inner pipe. The inlet pipe is connected to one end of the inner pipe and is located outside the case. The outlet pipe is connected to the other end of the inner pipe and is located outside the case.
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