| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce drag or noise and prevent vibration or breakage of equipments by suppressing pressure fluctuation in a cavity under various conditions by a simple structure. <P>SOLUTION: The cavity 10 formed to be orthogonal to a main pipe 20 includes a buffer means 30 for attenuating a reflection shock wave reflected by a side surface on the front edge side of the cavity when the shock wave generated at a rear edge of the cavity 10 is propagated to an upstream side within the cavity 10. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
