| 喷油定时对GDI汽油机燃用含水乙醇汽油的燃烧和颗粒排放的影响 |
| |
| 引用本文： | 李菲,张小敏,陈振斌,宁萍,刘祥.喷油定时对GDI汽油机燃用含水乙醇汽油的燃烧和颗粒排放的影响[J].车用发动机,2022(1):40-45. |
| |
| 作者姓名： | 李菲 张小敏 陈振斌 宁萍 刘祥 |
| |
| 作者单位： | 重庆科创职业学院汽车工程学院,重庆482160,重庆金康赛力斯新能源汽车设计院有限公司,重庆401135,海南大学机电工程学院,海南海口 570228,重庆交通大学航运与船舶工程学院,重庆400074 |
| |
| 基金项目： | 重庆科创职业学院校级项目(19KC16)。 |
| |
| 摘 要： | 在1台2.0L直列4缸GDI汽油机上,分别燃用汽油、含水乙醇汽油E10W、E20W,保持转速和平均指示压力不变,在不同喷油定时下分析汽油、E10W、E20W的燃烧特性和颗粒物排放特性.结果 表明:随着喷油定时的推迟,缸内压力、放热率和缸内平均温度三者峰值均呈现下降趋势,且放热率和缸内平均温度峰值位置推迟.燃用含水乙醇汽...
|
| 关 键 词： | 直喷式汽油机 含水乙醇汽油 喷油定时 颗粒物 |
Influence of Injection Timing on Combustion and Particulate Emission of GDI Engine Fueled with Hydrous Ethanol Gasoline |
| |
| LI Fei,ZHANG Xiaomin,CHEN Zhenbin,NING Ping,LIU Xiang.Influence of Injection Timing on Combustion and Particulate Emission of GDI Engine Fueled with Hydrous Ethanol Gasoline[J].Vehicle Engine,2022(1):40-45. |
| |
| Authors: | LI Fei ZHANG Xiaomin CHEN Zhenbin NING Ping LIU Xiang |
| |
| Institution: | (College of Automotive Engineering,Chongqing Creation Vocational College,Chongqing 482160,China;Chongqing Jinkang Seres New Energy Vehicle Design Institute Co.,Ltd.,Chongqing 401135,China;College of Mechanical and Electrical Engineering,Hainan University,Haikou 570228,China;College of Shipping and Naval Engineering,Chongqing Jiaotong University,Chongqing 400074,China) |
| |
| Abstract: | The combustion and particulate matter emission characteristics of gasoline and E10W and E20W hydrous ethanol gasoline were analyzed at different injection timings on a 2.0 L inline 4-cylinder GDI engine at the same speed and average indicated pressure.The results show that the peak values of in-cylinder pressure,heat release rate and in-cylinder average temperature all show a downward trend and the peak positions of the two latter ones delay with the delay of injection timing.Compared with gasoline,the CO and THC emissions of E20W almost keep the same and those of E10W have an increase,the NOx emissions of E10W and E20W also increase,but particulate matter emissions of both have a significant reduction.the total particulate number,nuclear and accumulated particulate matter of the three fuels all reach the minimum at 300°BTDC.With the increase of hydrous ethanol content,the maximum particle size shows a drop trend and the number of aggregated particles also decreases. |
| |
| Keywords: | GDI engine hydrous ethanol gasoline injection timing particulate matter |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
