高压缩比甲醇发动机的试验研究  

An Experimental Study on a High Compression Ratio Methanol Engine

作　　者：洪斌[1] 汪洋[1] 朱永生[1] 朱自强 程雄 邱保健 

机构地区：[1]天津大学内燃机燃烧学国家重点实验室,天津300072 [2]山西佳新能源化工实业有限公司,晋中030600

出　　处：《汽车工程》2014年第11期1351-1354,1364,共5页Automotive Engineering

基　　金：国家自然科学基金(51176137)资助

摘　　要：将Phase 110柴油机改造为高压缩比火花点燃式甲醇发动机样机,进行台架试验,研究EGR阀开度、点火提前角和混合气浓度等参数对发动机油耗的影响规律。经优化后与原机进行性能对比试验,结果表明:高压缩比甲醇发动机的动力性超过原柴油机,在高速工况,热效率高于原柴油机。A high compression ratio spark-ignition methanol engine is refitted from a Phase 110 diesel en-gine and a bench test is conducted on it to study the influence law of the opening of EGR valve, ignition advance an-gle and mixture concentration on the fuel consumption of engine. Then after optimization its performance is com-pared with original diesel engine by test. The result show that compared with original diesel engine, the power per-formance of high compression ratio methanol engine is by and large better with a higher thermal efficiency at high speed.

关 键 词：甲醇发动机 高压缩比 动力性 燃油经济性 

分 类 号：U464[机械工程—车辆工程]