| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust manifold capable of sufficiently cooling a collecting part and preventing the deformation of a welded part in the collecting part in the exhaust manifold in which the downstream end parts of two or more branch pipes are collected and mutually hold partition boards. SOLUTION: In this exhaust manifold 8 in which the downstream end side parts 1b, 2b, 3b, 4b of two or more branch pipes 1-4 are collected and mutually hold the partition boards 5, 6, the downstream end parts 5c, 6c of the partition boards 5, 6 are approximately matched with the downstream end parts 1b, 2b, 3b, 4b of the branch pipes and fixed thereto, and radiating means 5a, 6a are formed in the extended parts extending from the downstream end parts 5c, 6c of the partition boards 5, 6 to an upstream direction. COPYRIGHT: (C)2007,JPO&INPIT
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