| 摘要 |
PROBLEM TO BE SOLVED: To suppress leak of intake air from a section between passages further when passage length is changed over and improve mounting properties thereof. SOLUTION: In an intake manifold 12, a passage length change over part 14 which can freely change over passage length of an intake passage 24 is disposed in a middle of the intake passage 24 through which intake air to be supplied to an engine 22 flows. A pair of seal members 44a, 44b including a first ring part 56 made of elastic material and engaged with a grove part 54 of a valve 16 and a second ring part 58 connecting the first ring parts 56 and abutting on a joining wall 50 of the valve 16 are installed on the valve 16 composing the passage length change over part 14. COPYRIGHT: (C)2011,JPO&INPIT |
