| 摘要 |
PURPOSE: Combining structure of plates of a dual exhaust pipe is provided to prevent plates from broken by preventing thermal stress from being concentrated on a part and to improve low and medium-speed torque of an engine by dividing the inside of the dual exhaust pipe into two independent flow spaces by each plate and a wire mesh. CONSTITUTION: A dual exhaust pipe(10) guides exhaust gas passing through an exhaust manifold to an exhaust pipe. In combining structure of plates of the dual exhaust pipe, the inside of the dual exhaust pipe is divided into two independent flow ranges by welding a weld part(12) formed to the upper side of a first plate(11) to the central top of the dual exhaust pipe, and welding a weld part(14) formed to the lower side of a second plate(13) to the central bottom surface of the dual exhaust pipe. An overlap part(15), where the ends of the first and second plates are crossed, is formed, and protrusions(16,17) are formed to the first and second plates of the overlap part. A wire mesh(18) is interposed between the protrusions to independently shut off the flow ranges.
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