Common Rail Valve F00RJ01479 for Injector 0445120066 0445120067 for Injection Needle

Through the analysis of the motion equation of the needle valve pair and the summarization of the experience of the predecessors, the diameter of the ball valve, the maximum lift of the solenoid, the quality of the moving part of the solenoid valve, the early warning force of the solenoid valve spring, and the spring stiffness of the solenoid valve to the fuel injection volume and oil volume can be obtained. , A certain aspect of the opening and closing time of the needle valve will have a certain influence. Since the needle valve and the needle valve body are the precision coupling parts of this study, the influence of its structural parameters on the fuel injection performance of the injector is mainly discussed.
Influence of Needle Valve Lift on Injector
The greater the lift of the needle valve, the longer the time it takes for the needle valve to lift to the highest point. Although it has no significant impact on the opening time, it has a significant impact on the amount of fuel injection/return oil/needle valve closing time and needle valve closing time. The delay time has a significant impact, the greater the lift of the needle valve, the greater the increase in the fuel injection volume/return oil volume and the closing time of the needle valve; and the closing delay time of the needle valve will be shortened accordingly. However, choosing a smaller needle valve lift is beneficial to improve the response speed of fuel injection and reduce the amount of fuel leakage during injection.