| 摘要 |
PROBLEM TO BE SOLVED: To provide adjustment of acoustic property of an engine room at low cost.SOLUTION: An acoustic property adjustment unit 10 includes: a box body 12 provided in a space on an inner side of a fender; a pipe 14 communicating the inside of the box body 12 to the inside of the engine room 1; and multiple partition walls 16 provided inside the box body 12 and forming a sound path 11 extending from the pipe 14, to adjust acoustic property of the engine room 1.SELECTED DRAWING: Figure 1 |
