《柴油机》编辑部

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龚为佳,沈卫东,徐嘉锋,李建平.半流式DPF排气背压和过滤效率公式的建立[J].柴油机,2011,33(2):16-19. [点击复制]
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半流式DPF排气背压和过滤效率公式的建立
龚为佳¹,沈卫东¹,徐嘉锋¹,李建平²
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1.重庆通信学院军事目标特征控制总参重点实验室,重庆,400035;2.73881部队,福建福州,350003

摘要:分析了半流式DPF的工作原理，建立了其排气背压和过滤效率的数学公式，试验验证了公式的正确性，能够较准确地计算半流式DPF的排气背压和过滤效率；半流式DPF在柴油机排气后处理领域有良好应用效果。

关键词: 半流式DPF, 排气背压, 过滤效率, 数学模型

Establishment of the Exhaust Back Pressure and Filtration EfficiencyEstablishment of the Exhaust Back Pressure and Filtration Efficiency Equation for Partial-Flow Diesel Particulate Filters

Gong Weijia¹,Shen Weidong¹,Xu Jiafeng¹,Li Jianping²

1.Chongqing Communication Institute，Chongqing 400035;2.73881 Army，FujianFuzhou 350003

Abstract:The working principle of partial flow DPF is analyzed．The mathematical formulas of exhaust back pressure and filtration efficiency were set up，and through experiments，the formulas were verified to be correct，which could be used to calculate the back pressure and filtration efficiency accurately．Partial flow DPF would have excellent application effect in exhaust after—treatment field．

Key words: partial flow DPF exhaust back pressure filtration efficiency mathematical model