【摘要】 针对二甲醚(DME)应用于柴油机易造成燃料供给系统严重磨损与泄漏的现状,基于二甲醚低压共轨燃料系统,对系统中的加压泵及喷油器等关键部件重新设计;介绍了DME新型加压装置——直列隔膜式燃料泵及DME新型喷射装置——独立润滑喷油器的结构及工作原理,并进行了相应的试验研究。进一步完善了二甲醚低压共轨燃料系统,为二甲醚发动机的深入研究奠定了基础。更多还原

【Abstract】 For the situation that DME’s low viscosity causes wear and leakage on the plunger coupled parts of injection pump and needle coupled parts of injector, based on DME low-pressure common rail fuel system, the pressure pump and injector of which is redesigned. The new pressure device for DME, in-line diaphragm fuel pump, and the new injection device, independent lubrication injector are introduced, and corresponding experimental research is conducted. DME low-pressure common rail fuel system is improved in order to do further research on the DME engine.更多还原