| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an intake duct reducing intake noise, small in size and weight, and superior in assemblability. <P>SOLUTION: This intake duct S comprises: an intake duct body part 10 in which a duct portion 11 conducting outside air to an internal combustion engine, a resonator portion 12 reducing intake noise in a predetermined frequency region, and a communication pipe 13 connecting the duct portion 11 with the resonator portion 12 are integrated; and a porous duct 20 shaped from a porous material. The body part 10 is divided by a plane including an axial line of the duct portion 11, and is integrally assembled by engaging an engagement claw 10C with an engagement hole 10D while the duct 20 is accommodated in accommodation recesses 11Aa, 11Ba formed in the duct portion 11. Accordingly, the small and lightweight intake duct S comprising the body part 10 and the duct 20 can be extremely easily assembled, and the intake noise is reduced by the resonator portion 12 and the duct 20. <P>COPYRIGHT: (C)2013,JPO&INPIT |
