LJ276M汽油机示功图试验研究  

Experimental Investigations of Indicator Diagram for LJ276M Gasoline Engine

作　　者：侯献军[1] 方丹[1] 巩学军[1] 彭辅明[1] 

机构地区：[1]武汉理工大学汽车工程学院,武汉430070

出　　处：《汽车科技》2009年第3期14-17,共4页Auto Sci-Tech

基　　金：国家"十一五"863计划项目(2006AA060307)

摘　　要：建立了LJ276M汽油机示功图测取试验系统，详细介绍了CB-466多通道发动机分析仪的使用及参数设置。并利用该试验系统测取了Ij276M化油器式和电控汽油喷射式汽油机的示功图。试验结果表明，将LJ276M改造为电控汽油喷射后，其缸内最高燃烧压力提高37％以上，且各转速的最高燃烧压力对应的曲轴转角为上止点后10°－14°．比原化油器式汽油机更合理。This paper established the experiment system for measuring the indicator diagrams on a Ij276M gasoline engine both equipped carburetor and electronically injection system and gave a detailed presentation tor the using and settings of CB-466 multi-channel engine analyzer. The results of experiments indicate that the maximum combustion pressure was enhanced to a degree of 37% at least and the crank angle corresponding to the maximum combustion pressure varied from 10° to 14° which is more reasonable than that of origin carburetor gasohne engine after transformation.

关 键 词：试验系统 示功图 最高燃烧压力 

分 类 号：U464.171[机械工程—车辆工程]