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相继涡轮增压系统对D6114型柴油机性能的影响

, PP. 30-35

Keywords: 柴油机,涡轮增压器,相继涡轮增压,性能

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Abstract:

在D6114型增压中冷柴油机上,分别采用原机增压器、大增压器、小增压器和同时使用大小2个增压器等4种方案,对柴油机的燃油消耗率和碳烟排放进行了试验。通过分析比较试验结果,提出大小涡轮相继涡轮增压方案,低速工况时小增压器单独工作,中高速工况时大小增压器并联运行。试验结果表明,采用大小涡轮相继增压系统在低速大负荷工况时,比原机燃油消耗率密度最多降低30?g/(kW?h),排放烟度最多降低约22%,初步证实了车用柴油机采用相继涡轮增压技术效果良好。

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