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喷油泵对发动机冷起动性能的影响

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喷油泵对发动机冷起动性能的影响

发布日期:2019-12-04 作者: 点击:

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 天海水泵

   天海水泵辽宁11选5为了提高怠速工况的喷射压力,使发动机能正常运转,必须提高该工况的供油速率,即提高柱塞的运动速度。由此采用降速凸轮型线设计的方法对喷油泵的凸轮轴重新进行了设计,改进前、后柱塞运动速度如改进后的凸轮轴供油始点为降速段的起始点,较改进前的柱塞运动速度提高了大约27,从而提高了喷油泵工作段的平均供油速率和工作能力。改进前后柱塞值径为Y10.5)供油始点的供油速率对比数据如表L表1优化前后柱塞供油始点的供油速率对比柱塞预行程/mm凸轮转角八°改进前改进后3.3改进柱塞头部结构采用双导程柱塞可改善怠速的稳定性,减小冷车时转速波动的波动范围,降低因为怠速转速波动大而导致发动机熄火的可能性。为双导程柱塞的结构图。


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关键词:山东潜水泵,临沂深井泵,天海水泵

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