| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake noise amplification device of an engine for a vehicle, which prevents introduction of fuel evaporated component in an intake passage to a vehicular side even in the case where a membrane vibration means arranged in an intake noise introduction passage is broken. SOLUTION: The intake noise amplification device 30 of the engine for the vehicle for introducing an intake noise of the engine 20 provided in the engine room 3 of the vehicle 1 to a vehicular chamber 2 side is provided with: the intake noise introduction passage (a vibration generation pipe part 31, a membrane vibration part 33, a vibration transmission pipe part 35) wherein one end is communicated to inside of the intake pipe 23 of the engine 20, and the other end is communicated with inside of a cowl box 10 or inside of the vehicular chamber 2 via a dash panel 4; and the membrane vibration part 33, arranged in this intake noise introduction passage, for membrane vibrating by intake pulse in the intake passage of the engine. A permeable member 40 is provided in the intake noise introduction passage on the vehicular chamber side from the membrane vibration part 33, and an adsorption agent 41 for fuel vaporized component adsorption is mixed into this permeable member 40. COPYRIGHT: (C)2009,JPO&INPIT
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