优化动力HCCI汽油机的试验研究  

Experimental Study on OKP HCCI Gasoline Engine

作　　者：缪金荣[1] 张旭洲[1] 沈义涛 陈林 方俊华[1] 吕兴才[1] 黄震[1] 

机构地区：[1]上海交通大学动力机械及工程教育部重点实验室,上海200240 [2]上海汽车工业集团技术中心乘用车前期动力总成部,上海201805

出　　处：《车用发动机》2011年第3期41-45,共5页Vehicle Engine

基　　金：上海市重大基础研究项目均质压燃发动机燃烧的应用基础研究(09DJ1400302);国家自然科学资助项目(50976069)

摘　　要：采用优化动力(OKP)技术手段,利用进气加热实现了产品4缸汽油机的HCCI燃烧。研究了OKP HC-CI汽油机的燃烧、HC排放及燃油消耗等特性,分析了压缩比及过量空气系数对HCCI燃烧的影响,并对SI-HCCI切换过程中HC排放规律进行了试验研究。结果表明,OKP HCCI汽油机能在15个循环内实现SI-HCCI燃烧模式的切换,HCCI燃烧能大幅地降低燃油消耗并且能达到与SI模式相当甚至更低水平的HC排放。With the OKP technology,the HCCI combustion of 4-cylinder gasoline engine was realized through intake heating.The performance of combustion,HC emission and fuel consumption for OKP HCCI gasoline engine was researched,the influences of compression ratio and excess air ratio on HCCI combustion were analyzed and the HC emission rule during the SI-HCCI switching was researched by the experiment.The results indicate that OKP HCCI gasoline engine can realize the SI-HCCI switch in 15 cycles.Through the HCCI combustion,the fuel consumption rate decreases dramatically and the HC emission level is equivalent to or even lower than that of SI mode.

关 键 词：汽油机 优化动力 均质压燃 排放控制 

分 类 号：TK411.2[动力工程及工程热物理—动力机械及工程]