| 摘要 |
PROBLEM TO BE SOLVED: To provide a double pipe exhaust manifold welded part structure that prevents fusion of the end of an inner pipe when fixing a double pipe exhaust manifold to a flange head by welding while reducing the difference in thermal capacity between the end of the inner pipe and the end of the outer pipe. SOLUTION: In the double pipe exhaust manifold welded part structure, the outer pipe 5 is fitted on the connecting face 11 of the flange head 4, with the end 7 of the inner pipe 6 overlapped in and with the inner side 10 of the end 9 of the outer pipe 5, and the ends 7 and 9 of the inner pipe 6 and the outer pipe 5 respectively are fixed together by welding to the connecting faces 11 of the flange head 4. The thickness of the end 7 of the inner pipe 6 is determined in accordance with the thermal capacity of the end 9 of the outer pipe 5. COPYRIGHT: (C)2004,JPO&NCIPI
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