| 摘要 |
<p>PURPOSE:To reduce an air intake sound or a pulsation sound with an intake hose proper, while preventing an increase in intake resistance. CONSTITUTION:The air drawn into a hose body 1 formed out of the body 1 itself having a bent section 10, and a sponge layer 2 laid on the internal surface of the section 10 at least faced to an intake air flow, collides with the layer 2 and the vibrations of the intake air are absorbed by the sponge layer 2. The occurrence of a noise can, therefore, be effectively prevented, due to sound attenuation resulting from the vibration absorption.</p> |
