| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake noise amplification device of an engine for a vehicle, efficiently transmitting intake noise of the engine from an intake noise guide passage to a vehicle compartment side. SOLUTION: The intake noise amplification device 30 of an engine for a vehicle comprises: the intake noise guide passage (oscillation generation pipe part 31, film oscillation part 33, and an oscillation transmission pipe part 35) of which one end communicates to an intake pipe 23 of the engine 20, and the other end communicates to a cowl box 10; the film oscillation part 33 oscillating the film by intake pulsation in an intake passage of the engine; and a cowl grille 12 having a communication hole 13 covering an upper part of a cowl box 10 and connecting the inside of the cowl box 10 to the outside of the vehicle. The cowl grille 12 is provided with the communication hole 13 near an opening part 37c of the intake sound guide passage. COPYRIGHT: (C)2009,JPO&INPIT
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