Abstract
High-pressure common rail injector is one of the most important components of the fuel injection system, and its performance will directly affect the engine combustion process. As the high-pressure common rail injector complex structure and the structure parameters which affect the ejecting performance are numerous. In order to understand the trend and impact of effect of the so many parameters, the simulation is necessary to identify the key structure parameters and operating parameters which affect the ejecting performance, and understand how these key parameter in the injector design of the selection principle. Variable parameters research is carried out based on the simulation model of the injector key structural parameters to analyze the influences of dynamic performance, such as response characteristic and fuel injection law,and indicate the principles of the injector design. Keywords-High-pressure common rail injector; structure parameters; ejecting performance; Hydsim
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