国Ⅲ柴油机ESC试验循环排放特性分析  

An Analysis on the Emission Characteristics of Diesel Engines Meeting State-Ⅲ Emission Standard with ESC Test Cycles

作　　者：邢居真[1] 高俊华[2] 钟绍华[1] 

机构地区：[1]武汉理工大学汽车工程学院,武汉430070 [2]中国汽车技术研究中心,天津300162

出　　处：《汽车工程》2009年第10期938-941,共4页Automotive Engineering

摘　　要：对采用机械泵+EGR、电控单体泵和高压共轨3种技术方案的国Ⅲ柴油机进行欧洲稳态循环(ESC)试验,对3种技术方案柴油机ESC试验的气态污染物分担率和油耗量进行了对比分析。分析结果表明,电控燃油系统尤其是高压共轨系统的污染物分布更趋均匀,而采用机械泵+EGR的柴油机的油耗量较低。A European steady-state cycle （ESC） test is conducted on 3 diesel engines adopting different technical schemes （mechanical fuel pump with EGR, electronic unit pump and high pressure common rail fuel system） respectively for comparatively analyzing the contribution rates of gaseous pollutants and specific fuel consumption of these diesel engines. The results of analysis show that the pollutants distribution of electronic fuel system, in particular, high-pressure common rail fuel system tends to be more uniform; while the diesel engine using mechanical fuel pump with EGR has lower specific fuel consumption.

关 键 词：柴油机 排放 欧洲稳态测试循环 分担率 

分 类 号：U467.2[机械工程—车辆工程]