夏淳;赵廷钰;方俊华;朱磊;黄震;

• 1:上海交通大学动力机械与工程教育部重点实验室

摘要(Abstract)：

随着近些年愈加严格的排放标准相应实施，对汽油机的排放和油耗都有很严格的限制。目前已有大量新技术用以改善直喷汽油机的燃烧和排放，但大部分的技术应用需要对发动机内部进行优化，因此需要对发动机的机械结构进行大量的改动。在不改变原始燃烧室的基础上，在一台缸内直喷汽油机上搭建双喷射系统，通过进气道喷射高辛烷值燃料直喷低辛烷值燃料的方式，研究低辛烷值燃料比例对于双喷射发动机燃烧和排放的影响。实验结果表明，合适的低辛烷值燃料比例可以改善燃烧并降低油耗，在不同负荷下油耗分别降低4.81%、4.88%和2.23%。同时因为双喷射的应用使得颗粒物排放也能维持在较低水平，不同负荷下颗粒物数量的降低幅度分别为99.96%、99.65%和98.87%。

关键词(KeyWords)： 双喷射;汽油发动机;颗粒物排放;燃烧分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（NO.51861135303）;; 上海汽车工业科技发展基金（NO.1509）资助项目

作者(Authors): 夏淳;赵廷钰;方俊华;朱磊;黄震;

参考文献(References)：

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