| 摘要 |
PROBLEM TO BE SOLVED: To improve a sound absorbing effect without increasing a flowing resistance within a flow passage by a method wherein a plurality of cylindrical sound absorbing members are arranged within a casing while being contacted to each other in a parallel state in respect to the flow passage or adjacent to each other and then the sound absorbing members are of a hollow structure with their both ends being opened. SOLUTION: A plurality of sound absorbing members 2 are arranged within a casing 1 of a sound absorbing device in parallel with an air flowing direction while being adjacent to each other. The sound absorbing member 2 has its front end 2a and its rear end 2b opened and has a hollow cylindrical structure. In addition, each of the front end 2a and the rear end 2b of the sound absorbing member is fastened to each of a front end fixing fitting 3 and a rear end fixing fitting 4 fixed to the casing 1. An intermediate section of each of the sound absorbing members 2 fixes the arrangement of the sound absorbing members 2 by an intermediate holding fitting 5 fixed to the casing 1 so as to prevent their positions from being displaced by aeration of air. |
