| 轨压与喷油提前角对柴油机NOx排放的影响研究 |
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| 引用本文： | 侯俊香,梁坤峰,刘景,顾慧,李玉刚,陈卫峰.轨压与喷油提前角对柴油机NOx排放的影响研究[J].现代农业科技,2014(5):218-219,221. |
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| 作者姓名： | 侯俊香 梁坤峰 刘景 顾慧 李玉刚 陈卫峰 |
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| 作者单位： | 江苏江淮动力股份有限公司;河南科技大学;天津大学; |
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| 基金项目： | 国家自然科学基金(U1304521);2013年度江苏省“博士集聚计划(企业博士后类)” |
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| 摘 要： | 结合某小型直列4缸、直喷式、增压中冷、电控高压共轨柴油机,通过试验研究了十三工况点下不同共轨压力和喷油提前角参数组合对柴油机NOx排放的影响,并分析了NOx形成机理与喷油参数轨压、喷油提前角改善柴油机排放的作用。结果表明:NOx排放值随着轨压的增大基本上均呈现逐渐增大趋势,并且随着喷油提前角的增大而增高,同时轨压对NOx排放值的影响小于喷油提前角的影响;喷油提前角应在8~10°间选取,轨压选1 200 bar左右较为合适;仅改变喷油参数轨压和喷油提前角难以实现全工况的NOx排放值达标。
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| 关 键 词： | 高压共轨柴油机 轨压 喷油提前角 NOx排放 十三工况 |
The Influence of Rail Pressure and Fuel Injection Advance Angle on NOx Emission of Diesel Engine |
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| Authors: | HOU Jun-xiang LIANG Kun-feng LIU Jing GU Hui LI Yu-gang CHEN Wei-feng |
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| Institution: | 1 Jiangsu Jianghuai Engine CO., LTD, Yaneheng Jiangsu 224000 ; 2 Henan University of Science and Technology ; 3 Tianjin University) |
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| Abstract: | Combined with a small inline 4 cylinder,direct injection,turbocharged,electronically controlled high pressure common rail diesel engine,influence of thirteen operating points with different common rail pressure and fuel injection advance angle on NOx emission of diesel engine was researched.Formation mechanism of NOx ,improvements in the emission of diesel engine from rail pressure and fuel injection advance angle were analyzed.The results showed that：NOx emission value increased with the rail pressure ,and also increased with the fuel injection advance angle ,and rail pressure′s influence on NOx emission value less than the effect of fuel injection advance angle;fuel injection advance angle should be chosen between 8° to 10° ,and rail pressure should be about 1 200 bar;only change the rail pressure and fuel injection advance angle was difficult to fulfil conditions reach the NOx emission standard. |
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| Keywords: | high pressure common rail diesel engine jet pressure fuel injection advance angle NOx emission thirteen operating points |
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