| 摘要 |
PURPOSE:To decrease incurring of a pressure loss, by a method wherein a large part and a small part are communicated alternately with exhaust gas pass- through holes in a sound eliminating body, radially extended-through-holes are formed in a thick wall part therearound, and a sound absorbing buffering material is located between the sound eliminating body and a can body. CONSTITUTION:A sound eliminating body 4 is located in a can body 1 of a sound eliminator through a sound absorbing buffering material 11. Exhaust gas pass-through holes 7 in the sound eliminating body 4 are communicated alternately with large part 7a and a small part 7b for formation. An infinite number of through-holes 6, extended from the exhaust gas pass-through hole 7 to the outer surface, are formed in a honeycomb shape in a thick wall part surrounding the exhaust gas pass-through hole 7. This enables reduction of incurring of a pressure loss and energy loss and improvement of a sound eliminating effect. |
