| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust manifold which can be easily manufactured. Ž<P>SOLUTION: This exhaust manifold is provided with a first-fourth branch pipe part 11-14 connected to a first-fourth exhaust port 1-4, and a collecting part 16 to which the first-fourth branch pipe part 11-14 are connected, and is attached to a cylinder head S through a flange member 18. Flange parts 11a-14a are formed at cylinder head S side of the first-fourth branch pipe part 11-14. Through holes 21-24 communicating to the first-fourth exhaust port 1-4 are formed on the flange member 18, and hollow parts 26-29 storing the flange parts 11a-14a are formed at the cylinder head S side with connected the through-holes 21-24. The flange member 18 is divided into at least two and the through-holes 21-24 are formed when the two are butted. The divided flange member 18 are butted and welded under a condition where the first-fourth branch pipe part 11-14 are inserted in the through-holes 21-24 after welding the first-fourth branch pipe part 11-14 are welded to the collecting part 16. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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