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tan fa dong ji de bao zhen ran shao yu biao mian dian huo
Pages: 71
Year: Issue:  4
Journal: Farm Machinery Using & Maintenance

Abstract:  1.爆燃的成因正常燃烧时,混合气在燃烧室内被压缩点火,火焰前锋从火花塞电极处向四周展开,火焰传播速度为15~30m/s.而爆震自燃形成的火焰中心所产生的火焰传播速度高达2000m/s以上,使未燃混合气以极高的速度燃烧.这种燃烧将会发生剧烈的压力增高,继而发生迅速的压力波动.压力波撞击气缸壁、活塞顶部,于是就发生爆燃特有的"咔咔"的尖锐的金属撞击声,即燃烧噪声.
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