缸内直喷天然气发动机开发.pdf

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· 设计·计算·研究·
缸内直喷天然气发动机的开发★
邹博文李静波李开国葛晓成
(中国汽车工程研究院一国家燃气汽车工程技术研究中心)
【摘要】以一台四缸进气道多点顺序喷射式汽油机为原型,开发了缸内直喷天然气发动机,并进行了不同燃烧室
设计方案的仿真对比、电控系统和燃料供给系统的设计开发。对缸内直喷天然气发动机、原汽油机和天然气进气道
喷射发动机进行了台架试验对比。,总功率
和最大扭矩仅分别下降了 %和 %;缸内直喷天然气发动机较天然气进气道喷射发动机总功率和最大扭矩分别
提高了 %和 %。
主题词:天然气发动机缸内直接喷射开发
中图分类号: 文献标识码:A 文章编号:1000—3703(2011)05—0001—04
Development of Direct Injection NaturalGas EngineDevelopment Injection Direct of
Zou Bowen,Li Jingbo,Li Kaiguo,GeXiaocheng
(ChinaAutomotive NGV Engineering Research Institute-National EngineeringResearch Center)
【Abstract]Based on a 4-cylinder multiple-point sequential port-injection(PFI)gasoline engine,a natural gas gas engine,a port-injection(PFI)gasoline natural sequential multiple-point 【Abstract]Based4-cylinder on a
direct-injection(NG-DI)engine was of different designs bustion chamber was studied bustion for designs direct-injection(NG-DI) parison
by simulation,the electronic control system and fuel supply system were also designed and wastest
carried out pare performance of NG-DI engine,base gasoline engine and natural gas port-injection port-injection gas NG-DI pare andperformancenatural to engine engine,base out gasoline carried
results show results that thepowerand torqueNG-DI of engine