| 摘要 |
PURPOSE:To utilize the space in the engine room effectively by arranging a plurality of resonators having different capacities while piling. CONSTITUTION:The high frequency resonator 1 has minimum capacity, shortest connecting pipe 5 and largest cross-section of pipe 5 while the low frequency resonator 3 has the maximum capacity, longest connecting pipe 7 and smallest cross-section of pipe. The intermediate frequency resonator 2 has the intermediate capacity, pipe length and cross-section. Said resonators 1, 2, 3 are arranged while being piled in the direction perpendicular with the suction path 4. |
