| 摘要 |
PURPOSE: An exhaust system of an engine is provided to effectively block exhaust sound by blocking an exhaust-air flow path in a low/middle-speed area. CONSTITUTION: An exhaust system of an engine comprises a valve(120) and a movable load(200). The valve is arranged so that one side of the valve can rotate on a hinge to open/close an exhaust-gas flow path, through which exhaust gas passes. When the valve rotates on the hinge(150) to open/close the exhaust-air flow path, the centroid of the movable load moves along the valve by gravity.
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