气体双燃料发动机运行模式的研究  

STUDY ON RUNNING MODES OF BI-FUEL ENGINES WITH GAS

作　　者：徐兆坤[1] 蒋妙范[1] 张珏成[1] 李西秦[1] 吴伟蔚[1] 黄鹏[1] 

机构地区：[1]上海工程技术大学

出　　处：《天然气工业》2005年第3期157-159,共3页Natural Gas Industry

摘　　要：为了改善汽车能源结构和降低排放量,根据对天然气、石油气、汽油和柴油理化特性的分析,在理论上预测了不同燃料发动机的特性,并结合试验结果,研究了不同气体双燃料发动机的运行模式。结果表明:燃用气体燃料是降低一氧化碳和颗粒物质排放量的有效手段,但并不存在降低NOX 排放量的机理;其中,CNG/柴油混用双燃料发动机是最佳的运行模式,其次是汽油/LPG双燃料发动机;另外,并非所有的模式都值得开发,相关研究也值得商榷。To improve the energy structure of vehicles and reduce the exhaust volume, according to the analysis of physical and chemical properties for natural gas, petroleum gas, gasoline and diesel, the engine features with different fuel are predicted theoretically. With test results, the, running modes of bi-fuel engines with various gas are studied. The results show using gas fuel is the effective measure to reduce the exhaust volume of NO and grain impurities, but the mechanism to reduce the exhaust volume of NOX doesn't exist. Among them, the running mode of bi-fuel engines with CNG/diesel is the most optical, the bi-fuel engines with gasoline/LNG is the second optical. By the way, not all the running model are worth to develop and some related study results are worth to discuss.

关 键 词：双燃料发动机 汽车能源 排放量 CNG 石油气 汽油 LPG 降低排放 N0X排放 气体燃料 

分 类 号：U464[机械工程—车辆工程]