【摘要】 大量的研究表明二甲醚(DME)是压燃式发动机的一种较为理想的代用清洁燃料,本文介绍了迄今为止DME在压燃式发动机上应用研究的最新进展。研究人员借助各种先进手段对DME的热物性和喷雾、燃烧特性进行了深入的研究,从理论上探讨了DME的燃烧过程及其能实现超低排放的机理,试验研究了发动机在不同工况下的各项性能指标。在此基础上一些国家开发出了新型的DME燃料供给和喷射系统,并成功应用在车辆上。更多还原

【Abstract】 Many researches indicate that DME is an excellent alternative clean fuel for compression ignition engines, and the latest development of the applications of DME on compression ignition engines were described in this paper. Researchers deeply studied the thermophysical characteristics, spray development characteristics and combustion characteristics of DME by using advanced approaches, theoretically studied the combustion process in-cylinder and the mechanism of realizing ultra low emission of DME and experimentally investigate the performances of DME fueled engines under different operating conditions. Based on those, some countries developed new supply and injection systems of DME which have been successfully applied on vehicles.更多还原