| 摘要 |
PROBLEM TO BE SOLVED: To reduce intake noise while preventing transmission of vibrations. SOLUTION: In an intake system for an engine, a curved cylinder member is disposed to connect an air cleaner fixed to a vehicle side with an intake pipe fixed to an engine side, and bellows are formed to a cylinder member wall of the curved cylinder member. In a cross-section in a passage center line direction including the center of curvature of the curved cylinder member, a wave-like part constituting the bellows is formed so that the wave-like part enters into or exits from a direction orthogonal to the passage center line of a linear one side connection part formed on one side in an intake air flow direction of the cylinder member wall, and a branch passage part connected with a resonator is disposed to the cylinder member wall on a side separated from the center of curvature of the curved cylinder member and between the bellows and a linear other side connection part formed to the other side in the intake flow direction of the cylinder member wall. COPYRIGHT: (C)2005,JPO&NCIPI
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