增压器对车用柴油机瞬态工况下排气烟度的影响  

Effect of turbo-charger parameters on smoke emission from an automotive diesel engine under transient operating conditions

作　　者：许允[1] 闫淑芳[1] 刘忠长[1] 马有华 

机构地区：[1]吉林大学汽车工程学院,吉林长春130022 [2]长春市港监船检处,吉林长春130000

出　　处：《吉林大学学报（工学版）》2004年第2期212-216,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家重点基础研究发展规划资助项目(2001CB209205).

摘　　要：为了改善车用柴油机瞬态工况烟度排放性能,试验研究了两种不同设计参数的增压器GT35和TBP4对柴油机排气烟度的影响。结果表明:增压器设计参数对柴油机瞬态进气响应及排气烟度有明显的影响。在低转速增转矩和大负荷增转速瞬态工况下,匹配增压器GT35可以大幅度降低柴油机的排气烟度。在其它恒转矩增转速瞬态工况下,增压器GT35所对应的排气烟度也要略好于增压器TBP4。在高转速全负荷工况下,增压器GT35所对应的空燃比、转矩和燃油消耗率等参数指标都劣于增压器TBP4。In order to improve automotive diesel engine smoke emission under transient operating conditions, effect of two kinds of turbo-chargers GT35 and TBP4 on smoke emission was investigated. Results show that diesel engine smoke emission is improved with turbo-charger GT35, especially under low speed-increasing torque and heavy load-increasing speed transient operating conditions. Under other transient operating conditions, transient smoke emission of engine with turbo-charger GT35 are lower than those with turbo-chargerTBP4. But air/fuel ratio, torque and fuel consumption parameters of turbo-charger GT35 are inferior to those of turbo-charger TBP4 under high speed-full load operating conditions.

关 键 词：柴油机 瞬态工况 排气烟度 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]