| 摘要 |
PROBLEM TO BE SOLVED: To provide an air inlet system structure of an engine, which retains rigidity and efficiently arranges the air inlet system structure such as an intake manifold to be connected to the engine under a floor. SOLUTION: The air inlet system structure 1 of the engine is tilted and arranged under the floor of a vehicle. In this structure, the intake manifold 8 extending horizontally, a surge tank 9 connected to an end of the intake manifold 8, and a resonator 11 are integrally molded with resin. The resonator is arranged between the surge tank 9 and a cylinder head 3 to cover a straight pipe portion of the intake manifold 8 from beneath. This allows effective use of a dead space between the engine 2 and the intake manifold 8. The resonator 11 has walls in its inside, and the walls and an outer wall serve as reinforcement ribs and can improve the rigidity of the straight pipe portion of the intake manifold 8. COPYRIGHT: (C)2005,JPO&NCIPI
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