| 摘要 |
PROBLEM TO BE SOLVED: To provide a resonance reducing device having simple attaching in a simple structure. SOLUTION: The edge of a connecting pipe 1 is inserted in a combustion chamber, and a pressure sensor 2 is attached to the connecting pipe 1. The resonance reducing device 100 for reducing resonances generated on the basis of an acoustic inherent value of the connecting pipe is provided on the connecting pipe 1. The resonance reducing device 100 has a porous metal plate blocking the connecting pipe, and a plurality of capillaries, and the resonances are reduced and absorbed with the porous metal plate and the plurality of the capillaries. COPYRIGHT: (C)2008,JPO&INPIT
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