| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an intake duct for further reducing noise leaking to the outside from an air cleaner without enlarging the intake duct with a simple constitution. <P>SOLUTION: This intake duct includes: a case 20 showing a box shape and having an inlet 20a for introducing air from the outside into an inside space and an outlet 20b for deriving the air toward the air cleaner 14 from the inside space so that one is positioned in the substantial center of the case and the other is positioned on the outer peripheral edge of the case; and a partition wall 60 having a passage of the air formed from the inlet 20a to the outlet 20b in the inside space by partitioning the inside space of the case 20. The partition wall 60 is provided with: a body wall constituting a passage wall of the passage formed in the inside space and arranged in the case so that the passage extends in the peripheral direction of the case toward the substantial center of the case from the outer peripheral edge of the case; and a projection part for squeezing the flow passage area of the passage by projecting toward the inside of the passage from the body wall. <P>COPYRIGHT: (C)2013,JPO&INPIT |
