预混合燃烧方式的混合气形成与燃烧的研究

Study of mixing and combustion in uniform premixing combustion of diesel engine

通过高速纹影摄影及激光多普勒测速技术对伞喷油嘴的喷雾特性进行了研究，并获得了与多孔喷油嘴喷束不同的规律；通过在Ｅ１５０型和１３５型试验机上的伞喷燃烧试验测取的示功图及性能参数表明具有预混合燃烧的特点，改善了经济性和排放指标．

This paper has made the investigation on the spray of comcal nozzle by bigh speed schlierenphotograph and LDV technology. It is discovered that there are different characteristics of conicalnozzle compared with multiple hole nozzle. The results of the perforrnance of diesel E150C typeand 135 type with conical nozzle show that the premixing combustion improves economy andexhaust emission of diesel.