A Dual-coil Topology for Enhancing the Transient Performance of Energy-coupled-actuated Valve
The energy-coupled-actuated valve is applied in the digital displacement pumps due to the low pressure loss and fast response performance,and its spool drving force is proportional to the coupling area.Magnetic diffusion phenomena severely constrain the transient performance of large-area energy-coupled-actuated valve,which causes the low efficiency of digital displacement pumps.To enhance the transient performance of the energy-coupled-actuated valve with large coupling areas,this paper first designs a digital displacement mechanism and digital displacement pump based on the energy-coupled-actuated valve.By analyzing the working principles of the digital displacement mechanism,a multi-physics coupling model for the energy-coupled-actuated valve is established for studying the magnetic flux density distribution and the factors influencing transient performance of the valve.Finally,a dual-coil topology for enhancing the transient performance is designed by analyzing the coupling magnetic circuit.The optimal turns ratio between the primary coil and the secondary coil in dual-coil topology is 7∶3,and the transient performance of the energy-coupled-actuated valve is reduced by 30％ of the original design.
digital distribution mechanismenergy-coupled-actuated valvehigh speed on/off valvetopology optimization
万方数据
维普
