| 摘要 |
PROBLEM TO BE SOLVED: To facilitate vibration welding work by securing mutual airtightness of intake passages by mutual vibration welding of only outside components without vibration welding of an inside component, in an intake manifold having a plurality of intake passages formed of the outside components and the inside component included in the outside components. SOLUTION: The resin-made inside component 8 is disposed in the resin-made outside components 7 and 9 forming an outer peripheral wall, and the plurality of intake passages 2-4 are formed of the outside components 7 and 9 and the inside component 8. The outside components 7 and 9 are divided into a plurality of outside components in the circumferential direction, the divided outside components 7 and 9 are fixed by vibration welding, and the inside component 8 is held air-tightly without vibration welding to the outside components 7 and 9. COPYRIGHT: (C)2004,JPO&NCIPI
|
