喷油提前角对高压共轨生物柴油发动机性能的影响  

Effect of Adjusting Fuel Injection Advance Angle on Characteristics of High Pressure Common Rail Diesel Engine Fueled with Biodiesels

作　　者：谭泽飞[1,2] 申立中[1] 李达[2] 贾德文[1] 

机构地区：[1]昆明理工大学云南省内燃机重点实验室,云南昆明650500 [2]西南林业大学机械与交通学院,云南昆明650224

出　　处：《昆明理工大学学报（自然科学版）》2014年第2期58-62,共5页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金(50766001);云南省应用基础研究基金项目(2011FZ138);云南省内燃机重点实验室开放基金项目(KF201001)

摘　　要：在燃用生物柴油混合燃料的高压共轨柴油机上进行了改变喷油提前角对其经济性、动力性、排气温度、烟度的影响及变化规律的研究．试验结果表明：当喷油提前角推迟2°CA和提前2°CA后，对比最佳喷油提前角时刻，不同燃料的发动机的燃油消耗率增加，增幅为0.04％～2.79％；扭矩出现了下降，降幅在0.88％～6.92％之间．而当提前角推迟2°CA后，混合燃料的排温和烟度在各个转速下都有不同幅度的升高；提前角提前2°CA后，排温和烟度在各个转速下均出现不同幅度的下降．The fuel injection advance angle of high pressure common rail diesel engine fueled with biodiesels is changed to study its influence on power performance,economic performance,exhaust temperature and smoke effects as well as the corresponding laws.The experiment results show that：compared with that of the optimal fuel injection advance angle,when the fuel injection advance angle is retarded 2°CA or advanced 2°CA,fuel consumption increase varies from 0.04%to 2.79%while the torque decreases in the range of 0.88%~6.92%.When the advance angle is retarded 2°CA,the exhaust temperature and smoke at all speeds increase to different extent;when the advance angle is advanced 2°CA,the exhaust temperature and smoke at all speeds drop in different degree.

关 键 词：共轨柴油机 生物柴油 喷油提前角 性能 

分 类 号：TK421.2[动力工程及工程热物理—动力机械及工程]