Measurements of Instantaneous Volume Flow Rates During Fuel Injections
Measurements of Instantaneous Volume Flow Rates During Fuel Injections
复制标题
燃油喷射过程中瞬时体积流量的测量
DOI：
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复制
发表时间：
2015
期刊：
影响因子：
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通讯作者：
H. Ratlamwala
中科院分区：
文献类型：
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作者：
F. Durst;Yung;H. Ratlamwala
当燃油被喷射到汽油发动机中时，整个燃油喷射系统（如共轨供油管或喷油器）中会出现压力脉动。这些脉动阻止了从系统中检测到的压力信号推导出关于燃料喷射的详细信息。但是，当采用专门为这些压力脉动设计的阻尼器时，来自脉动阻尼器的前部和末端处的信号的压差信息可以容易地用于瞬时体积流率测量。此外，插入的压力脉动阻尼器还允许采用由燃料喷射引起的共轨中的压力降低来测量运行的汽油发动机中的瞬时燃料喷射体积流率。在下文中，FMP Technology报告了验证测量的开发和结果。工作目标
When fuel is injected into gasoline engines, pressure pulsations occur in the entire fuel injection system, such as common rail supply pipes or injectors. These pulsations prevent detailed information about the fuel injection from being deduced from the pressure signals detected in the system. But when dampers specially designed for these pressure pulsations are employed, pressure difference information, from signals at the front and at the end of the pulsation damper, can easily be utilised for instantaneous volume flow rate measurements. Furthermore, the inserted pressure pulsation dampers also allow the pressure reduction in the common rail, caused by the fuel injections, to be employed to measure the instantaneous fuel injection volume flow rates in running gasoline engines. In the following, FMP Technology reports the development and results of verification measurements. AIMS OF THE WORK