Experimental Analysis on the Characteristics of Two-Actuator Controlled Fuel Injection System

摘要：

The characteristics of two-actuator controlled fuel injection system which is established by the Electronic Unit Pump and Common Rail injector to realize independent controlling the pumping and injection processes are investigated from the point of experimental analysis. The experimental results indicate that high pressure up to 130Mpa can be generated on the advance two-actuator system at low camshaft speed. Meanwhile, synchronous variations of the pumping and injection timing have little influence on the fuel pressure and injection rates, the reason for this phenomenon is that fuel injection characteristics here are mainly determined by the cam lift and velocity. Two-actuator system enables to generate the desired Nozzle Opening Pressure timely and produce a very flexible control of injection rate through changing control parameters of both Spill Control Valve and Nozzle Control Valve, which have great capabilities on fuel atomization and air-fuel mixture formation.

关键词： Two-Actuator Controlled Fuel Injection System Experimental Investigation Nozzle Opening Pressure

作者: Wang Yupeng Liu Xinghua Chen Yuhang Liu Fushui

作者单位: Lab. of Engine Technology Beijing Institute of Technology Beijing, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 689-692

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）