Effects Of Structure Parameters On The Static Electromagnetic Characteristics Of High Speed Solenoid Valves

Numerical calculations of high speed solenoid valves (HSV) are performed to understand the effects of the driving current and structural parameters on electromagnetic energy conversion in HSV. The results show that the driving current plays a prominent role on the capability of electromagnetic energy conversion. The changes in the electromagnetic force are determined by the total magnetic reluctance and the range of the driving current. For large driving currents, the capability of electromagnetic energy conversion is not significantly influenced by the driving current and is only slightly affected by the working air-gap. The larger the driving current becomes, the smaller the increase of the electromagnetic force is with an increasing of the working air-gap. Within a certain range of driving currents, the armature thickness has positive effects on the capability of electromagnetic energy conversion, but the effects are not significant at large driving currents. At different driving currents, the effect of the number of coil turns on the electromagnetic force is mostly determined by the effects of the coil turns on the total magnetic flux and the total magnetic reluctance.