进气参数对柴油机性能及排放的影响研究
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摘要
针对一款柴油机,考察不同进气负压及中冷压差对发动机动力性能及排放影响。试验结果表明:外特性试验时随着进气负压的加大,功率转矩最大降低0.4%,修正系数相应增加。随中冷压差的增加,功率转矩最大降低3.4%,油耗率上升;十三工况时随着进气负压及中冷压差的升高,CO、HC排放值降低,NO_x和烟度排放值升高。
Changing the inlet vacuum and differential pressure of intercooler of a diesel engine, research on the power performance and emission was conducted. The results show that engine power and torque decrease at most 0.4 percent with inlet vacuum increases when it is on the full load working conditions; and the correction factor increases at the same time. Engine power and torque decrease at most 3.4 percent with differential pressure of intercooler increases; and specific fuel consumption increases at the same time. CO and HC emission decrease with the increase of inlet vacuum and differential pressure of intercooler when it is on the 13 steady state working conditions, while NO_x and smoke intensity at the same time increase.
Changing the inlet vacuum and differential pressure of intercooler of a diesel engine, research on the power performance and emission was conducted. The results show that engine power and torque decrease at most 0.4 percent with inlet vacuum increases when it is on the full load working conditions; and the correction factor increases at the same time. Engine power and torque decrease at most 3.4 percent with differential pressure of intercooler increases; and specific fuel consumption increases at the same time. CO and HC emission decrease with the increase of inlet vacuum and differential pressure of intercooler when it is on the 13 steady state working conditions, while NO_x and smoke intensity at the same time increase.
引文
1全国汽车标准化技术委员会.GB/T 18297-2001汽车发动机性能试验方法[S].北京:中国标准出版社,2001
2 楼狄明,徐宁,谭丕强,等.排气和中冷前进气节流对柴油机性能和排放特性的影响[J].内燃机工程,2016,37(4):14-19
3 邱伟,周斌,张浩,等.进气节流对柴油机低负荷性能影响的试验研究[J].车用发动机,2017(4):1-5+10
4 邢居真.测试系统参数对车用发动机排放的影响研究[D].武汉:武汉理工大学,2009
5 姚春德,傅晓光,纪兆琳.进排气系统的阻力对车用柴油机性能影响的研究[J].小型内燃机与摩托车,2001,30(5):5-7
2 楼狄明,徐宁,谭丕强,等.排气和中冷前进气节流对柴油机性能和排放特性的影响[J].内燃机工程,2016,37(4):14-19
3 邱伟,周斌,张浩,等.进气节流对柴油机低负荷性能影响的试验研究[J].车用发动机,2017(4):1-5+10
4 邢居真.测试系统参数对车用发动机排放的影响研究[D].武汉:武汉理工大学,2009
5 姚春德,傅晓光,纪兆琳.进排气系统的阻力对车用柴油机性能影响的研究[J].小型内燃机与摩托车,2001,30(5):5-7