供油参数对CNG双燃料发动机低负荷排放的影响  

The Influence of Variation of Fuel Delivery Parameters on Emissions of Dual-Fuel Engine at Lower Loads

作　　者：苏岭[1] 钟辉[1] 汪映[1] 周龙保[1] 

机构地区：[1]西安交通大学,陕西西安710049

出　　处：《车用发动机》2002年第5期10-12,共3页Vehicle Engine

摘　　要：通过发动机性能试验 ,对引燃油量和供油提前角对发动机低负荷排放的影响进行了深入的探讨。试验表明低负荷时引燃油量可适当增加以改善排放 ;供油提前角适当提前可降低HC和CO排放 ,又不会使NOx 排放增加很多。In the study, engine tests were carried out on pilot fuel and fuel supply advanced angle. It was found that at lower loads increasing pilot fuel appropriately improved emissions. Advancing fuel supply advanced angle appropriately reduced HC and CO emissions, and  NO x emission didn′t increase excessively.

关 键 词：双燃料发动机 供油参数 排放 压缩天然气 柴油 氮氧化物 

分 类 号：TK43[动力工程及工程热物理—动力机械及工程]