吉林大学学报(工学版) ›› 2022, Vol. 52 ›› Issue (1): 37-45.doi: 10.13229/j.cnki.jdxbgxb20210928
柴油喷射时刻及汽油比例对均质混合气引燃模式排放性能的影响
苏岩1(
),王博1,刘宇1(),解方喜1,胡云峰2,段加全2
- 1.吉林大学 汽车仿真与控制国家重点实验室，长春 130022
2.中国一汽集团公司 汽车振动噪声与安全控制综合技术国家重点实验室，长春 130011
Effect of diesel injection timing and gasoline ratio on the emissions of homogeneous charge induced ignition
Yan SU1(),Bo WANG1,Yu LIU1(),Fang-xi XIE1,Yun-feng HU2,Jia-quan DUAN2
- 1.State Key Laboratory of Automotive Simulation and Control，Jilin University，Changchun 130022，China
2.State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise ＆ Safety Control，China FAW Group Corporation，Changchun 130011，China
摘要：
在均质混合气引燃模式下，研究了不同汽油比例和柴油喷射时刻对燃烧、常规气体和微粒的影响。发动机转速设定为1600 r/min，设定循环喷油量总热值为原机50%负荷工况喷油总热值，设定汽油比例为65%、70%、75%，柴油主喷时刻为-10 °CA、-5 °CA以及0 °CA。结果表明：在本次试验的最优策略下扭矩提升5%，NOx比排放降低60%，达到0.31 g/（kW·h），核态微粒数量浓度降低80%，积聚态微粒数量浓度降低97%。本文研究结果展现了均质混合气引燃模式在降低微粒和NOx方面的巨大潜力。
中图分类号:
- TK421.5
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