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加载减速工况下带有DPF柴油车的颗粒物排放
引用本文:李孟良,景晓军,张远军.加载减速工况下带有DPF柴油车的颗粒物排放[J].汽车工程,2007,29(8):660-663.
作者姓名:李孟良  景晓军  张远军
作者单位:中国汽车技术研究中心,天津,300162
摘    要:基于加载减速工况,利用ELPI能够有效研究颗粒物排放状况以及其数目浓度和质量浓度在粒径上的分布,研究证实,这种测试技术具有很高的DPF性能鉴别能力。通过量化分析颗粒物在DPF前后粒径上的浓度分布以及图解DPF前后的浓度差值,可以非常清晰地发现该DPF对于不同粒径的过滤性能,为开发和匹配柴油车颗粒物过滤器提供一种有效的手段。

关 键 词:柴油车  颗粒物排放  加载减速工况  粒径分布  过滤效率

PM Emission of Diesel Vehicle with DPF Under Lug-Down Mode
Li Mengliang,Jing Xiaojun,Zhang Yuanjun.PM Emission of Diesel Vehicle with DPF Under Lug-Down Mode[J].Automotive Engineering,2007,29(8):660-663.
Authors:Li Mengliang  Jing Xiaojun  Zhang Yuanjun
Institution:China Automotive Technology and Research Center, Tianjin 300162
Abstract:Particulate matter(PM)emission from diesel vehicle with diesel particulate filter(DPF) and the particulate size distribution in both number and mass concentrations under Lug-down mode are studied by using ELPL.The study confirms that this measuring technique has very high discerning ability on the performance of DPF.Through the quantitative analysis on the size distribution in PM concentration before and after DPF and the difference of PM concentration before and after DPF,the filtering performance of DPF for different particulate sizes can be clearly determined.This provides an effective means for the development and matching of DPF.
Keywords:Diesel vehicle  PM emission  Lug-down mode  Size distribution  Filtration efficiency
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