均质混合进气直喷汽油发动机中燃料和空气的混合

2017/09/08   下载量： 3 次

方案摘要

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应用领域 汽车及零部件
检测样本 汽车电子电器
检测项目 热性能>燃烧特性
参考标准 暂无

采用LaVision公司以增强型CCD相机为核心构成的平面激光诱导荧光测试系统（PLIF）对均质混合进气直喷汽油发动机中燃料和空气的混合程进行了测量和研究。

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For optimum efficiency, the direct injection (DI) gasoline
engine requires two operating modes to cover the full
load/speed map. For lower loads and speeds, stratified
charge operation can be used, while homogeneous
charge is required for high loads and speeds. This paper
has focused its attention on the latter of these modes,
where the performance is highly dependent on the quality
of the fuel spray, evaporation and the air-fuel mixture
preparation.
Results of quantitative and qualitative Laser Induced
Fluorescence (LIF) measurements are presented,
together with shadow-graph spray imaging, made within
an optically accessed DI gasoline engine. These are
compared with previously acquired air flow
measurements, at various injection timings, and with
engine performance and emissions data obtained in a
fired single cylinder non-optical engine, having an
identical cylinder head and piston crown geometry.

上一篇 在一个双稳湍流涡旋火焰中，对间歇性动态的时间-频率定位
下一篇 直喷汽油发动机工作在废气再循环模式下缸内NO激光诱导荧光的定量成像

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北京欧兰科技发展有限公司
金牌会员 丨 第17年
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