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A Study on the Particle Size and Velocity Profile on a Gasoline Port Injector Using a Phase Doppler Particle Analyzers(PDPA)

机译:使用相位多普勒粒子分析仪(PDPA)汽油料喷射器粒径和速度曲线的研究

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This study is to investigate particle size and velocity profile of gasoline port injector using Phase Doppler Particle Analyzer(PDPA).In this experiment,a GV 250 Delphi port injector used for motorcycles was used for liquid injection.The injector consists of four holes and has a static flow rate of 2.13 g/s.The fuel used in the injection was N-heptane,which is similar to gasoline,as an alternative fuel.The test fuel was injected at an atmospheric temperature of 20 °C and an open atmosphere of 1 atm.The injection time was 10 ms and the injection pressure was 3.5 bar in PDPA experiment.The experimental target position was fiexd at 30,50 and 75 mm from the nozzle tip and data were collected for a total of 10,000 samples.The experimental results show that the length diameter(D_(10)),the Sauter mean diameter(D_(32)),and the mean droplet velocity(MDV)are 45-54 μm,99-115 μm and 15-21 m/s,respectively.
机译:该研究是使用相位多普勒粒子分析仪(PDPA)研究汽油端口注射器的粒度和速度曲线。在该实验中,用于摩托车的GV 250 Delphi端口注射器用于液体注射。注射器由四个孔组成并具有四个孔 注射中使用的静态流速为2.13克/秒是正庚烷,其与汽油类似,作为替代燃料。测试燃料在20℃的大气温度下注入和开放的气氛 1atm。注射时间为10 ms,在PDPA实验中注射压力为3.5巴。实验靶位位置是Fiexd,距离喷嘴尖端75mm,并收集数据总共10,000个样品。实验 结果表明,长度直径(D_(10)),燃烧器平均直径(D_(32))和平均液滴速度(MDV)为45-54μm,99-115μm和15-21米/秒, 分别。

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