汽油机射流燃烧系统放热规律及燃烧完善性的分析与探讨

Study on the Heat Release Rate and Combustion Perfectibility for TJ-Jet Combustion System of Gasoline Engines

针对新型、高性能汽油机射流燃烧系统 ,依据不同工况下同步实测的示功图、空燃比、排放指标及其它性能参数 ,首先运用新建立的准维燃烧放热模型 ,较精确地计算了燃烧放热率 ,归纳了该系统所独具的燃烧放热规律 ;然后根据各项试验结果 ,从有效热效率、理论热效率、相对热效率及燃料燃烧热利用效率出发 。

WT5”BZ] For TJ Jet combustion system of gasoline engine with new type and better performance and on the experimental basis of actual indicator diagrams,air/fuel ratio and engine emissions as well as other parameters,firstly a new quasi dimensional heat release model proposed is used to calculate exactly the heat release rate and its special characteristic is induced at this paper and then the perfectibility for this combustion system is evaluated comprehensively from the view of effective thermal efficiency,the theoretical and relative thermal efficiency as well as heat utilization efficiency of fuel combustion according to variety of experimental results. [WT5”HZ]