电控半直接喷射二冲程汽油机的研究与试验  

Research and Test of the Electronic Fuel Semi-Direct Injected Two-Stroke Gasoline Engine

作　　者：罗滇生[1] 钱耀义[1] 于秀敏[1] 李云清[1] 

机构地区：[1]吉林工业大学内燃机工程系,长春130025

出　　处：《内燃机学报》2001年第1期51-54,共4页Transactions of Csice

摘　　要：介绍了二冲程汽油机上采用的电控燃油喷射技术 ,包括燃油喷射系统的设计与喷油器的选择方法 ,以及喷油器安装位置的确定方法。研制了一套可以适用于二冲程汽油机的电控燃油喷射系统的开发装置。试验表明 :喷油时刻对于降低燃油消耗率影响很大 ,小负荷时必须对喷油时刻进行精确控制 ;采用电控低压半直接喷射系统后 ,发动机在全负荷时的燃油消耗率下降显著 ,同时功率与扭矩也稍有增加。The electronic injection technology for two stroke gasoline engine,which comprises the layout of electronic fuel injection system and the choosing method and fixed position of fuel injector were introduced in this paper.The research device of electronic injection system for two-stroke engine was designed.The dynamometer test results showed that the injection timing had a large effect on the fuel consumption and it must be accurately and precisely controlled,when the engine was working at low load.As the semi-direct fuel injection system was used,the fuel consumption rate was obviously decreased at full load in comparison with the carburetor two-stroke engine,and the power and torque had a slight increasing.

关 键 词：二冲程汽油机 电控系统 半直接喷射系统 

分 类 号：TK413.84[动力工程及工程热物理—动力机械及工程]