| 摘要 |
PURPOSE: To improve the casing lining, so that the required space is very small and sound-absorbing operation is improved, especially, in case of low frequency. CONSTITUTION: This is a casing lining for a piston machine, a motive power machine, and a working machine which has a layer formed of fiber, attenuating air-transmitted sound, and the fiber 2 is compressed and adhered within an edge part range 3, surrounding at least the layer 1 externally, to form a support frame 4 having nearly no air holes. |
