在EQ6100型汽油机上获取最佳EGR率的试验研究  

Test and Research for Obtaining the Optimum EGR Rate on Model EQ6100 Gasoline Engine

作　　者：刘世元[1] 盛凯夫[1] 周良弼 方达淳[2] 

机构地区：[1]华中理工大学 [2]东风汽车工程研究院

出　　处：《汽车技术》1997年第6期15-20,共6页Automobile Technology

摘　　要：试验结果表明,在各种负荷工况下,EQ6100型汽油机采用EGR后其NO_x排放都显著下降,但HC、CO排放及燃油消耗率随EGR率的变化则较为复杂,而因各工况下均存在一个最佳EGR率。通过试验,给出了EQ6100型汽油机2000r/min下最佳EGR率随负荷变化的曲线,为其排气背压控制EGR系统的设计提供了依据。The test results show that NOx emissions from Model EQ6100 gasoline engine are obviously reduced under various load conditions after the EGR is used. But the HC,CO emissions and fuel consumption rate are in complicate conditions with the change of EGR rates,so an optimum EGR rate is existed under every engine working conditions. By tests,an optimum EGR rate curve with the change of load of model EQ6100 gasoline engine working at 2000 rpm is obtained, and it provides a design criterion for EGR system of exhaust gas back pressure control.

关 键 词：汽油机 排放试验 汽车 EQ6100型 EGR率 

分 类 号：U467.2[机械工程—车辆工程] U464.171[交通运输工程—载运工具运用工程]