Experimental Study on Influence of Fuel Injection Pressure on Dynamic Flow Characteristics of Solenoid Valve Injector

摘要

The factors influencing the dynamic flow characteristics of injectors are discussed, and a set of experimental system for measuring dynamic flow is designed and developed. Taking a certain fuel injector produced by Wenzhou manufacturer as the research object, the circulating fuel injection quantity of the injector under different pulse widths was measured. The dynamic flow characteristic curve was obtained by fitting the polynomial of MATLAB to calculate the dynamic flow of the injector range. The influence of injection pressure on the dynamic flow characteristics of injectors was analyzed, which provided a reference for ECU to precisely control injector injection quantity.