| 摘要 |
PROBLEM TO BE SOLVED: To prevent a heat damage at a connection part of an EGR pipe in a synthetic resin suction manifold by increasing heat release from the EGR pipe. SOLUTION: In the EGR pipe joint structure 2, a front end insertion part 11 of a metal EGR pipe 9 is inserted in an insertion hole 10 formed on the synthetic resin suction manifold 1 to be connected thereto. A predetermined gap 12 is formed between the outer circumference of the front end insertion part 11 and the inner circumference of the insertion hole 10. At the outer side of the suction manifold 1, a surrounding tube 13 for tightly surrounding the outer circumference of the EGR pipe 9 is provided adjacent to the front end insertion part 11. At the rim of the opening of the surrounding tube 13, a flange 15 to be joined on a base surface 8a of an attaching base 8 is integrally provided in a condition that the front end insertion part 11 is inserted in the insertion hole 10. COPYRIGHT: (C)2005,JPO&NCIPI
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