Finite Element Analysis of Electromagnetic Field and Experimental Study of High-Speed Solenoid for Common Rail Injector

Based on the software analysis of electromagnetic field, the electromagnetic force of high-speed solenoid in common rail injector was calculated by finite element analysis and was compared with the numerical result. In addition, the response character of solenoid valve was analyzed for different structure and lead diameter of solenoid valve. Meanwhile, equipment for testing the response character of solenoid valve was designed and the several groups of solenoid valves were tested. The results show that structure and lead diameter of solenoid valve will influence the response character of solenoid valve and the testing result has good agreement with the simulated result.