| 摘要 |
PURPOSE: An exhaust manifold structure is provided to easily connect the exhaust manifold to an engine, sufficiently reinforce the durability of each runner. CONSTITUTION: In comprising an exhaust manifold, a first unit is composed of a first to a fourth runners(21¯24) connected to an outlet end of each cylinder of an engine, a first flange(25) formed at an inlet side of each runner to be connected to the engine with bolts, and a second flange(26) formed at a joined part(27) which rear ends of the first to the fourth runners are joined, and a second unit is composed of a pipe(31) bent in the shape of 'L', a third flange(32) formed at an inlet side of the pipe to be connected to the second flange with bolts, and a fourth flange(33) formed at an outlet side of the pipe to be connected to a catalyst.
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