The finite element model of transient temperature field of Electro-Hydraulic Pump

Abstract

Aim. The full paper begins with a review on structure and main shortcoming of existing hydraulic pump, resulting in, in our opinion, the conclusion that it is absolutely essential to study on the Electro-Hydraulic Pump(EHP), a highly integration of electric motor and hydraulic pump. We now present a model how to get temperature field of our design plunger EHP that we believe that it can much better develop the EHP. In the full paper, we explain our method in some detail; in this abstract, we just add some pertinent remarks to naming the topics, such as motor thermal model, the fluid model and the heat conduction model. We discuss the temperature distribution under the condition of relationship among the oil film thickness, overall efficiency, leakage and cooling capacity. Finally we perform simulations in ANSYS. The simulation results, shown in the full paper, show preliminarily that our method for the temperature field is efficient to design the EHP.