Engine acoustic celotex board

The utility model provides an engine acoustic celotex board includes outer shell (2) and foam rubber layer (3), fasten in outer shell (2) inboard foam rubber layer (3), and corresponding engine gear engagement department ab intra outwards is equipped with the damping pit on the two -layer face. It is effectual that this engine acoustic celotex board has the sound insulation, and difficult because of engine vibration produces resonance, falls the advantage that the noise effect is obvious. 一种发动机隔音板包括外壳层(2)以及发泡橡胶层(3)；所述发泡橡胶层(3)紧固于外壳层(2)内侧，且两层板面上对应发动机齿轮啮合处自内向外设有阻尼凹坑。本发动机隔音板具有隔音效果好，且不易因发动机振动而产生共振，降噪音效果明显的优点。