不同扁平率无内环液力变矩器设计与性能分析

Analysis of Flat Hydrodynamic Torque Converter without Inner Ring Based on Different Flatness Ratios

提出一种扁平化无内环液力变矩器,研究不同扁平率和有无内环对其性能的影响。采用基于椭圆的扁平循环圆设计方法,设计3种不同扁平率的无内环循环圆且叶形为空间扭曲的扁平化液力变矩器。利用CFD软件对不同扁平率的无内环变矩器进行数值模拟,分析了内部流场的压力和速度分布,得到了扁平率和有无内环对变矩器流场和性能的影响规律。

The flat torque converter without inner ring was put forward to find out the impact of different flatness ratios and inner ring on the performance of torque converter.The flat torus design method based on the ellipse was used.Three different flatness ratio torque converters without inner ring were designed.The blade＇s profile was distorted in space.The internal flow field of the torque converter was simulated by CFD method,and the distribution of the velocity and pressure of internal flow field was analyzed,so the impact of flatness ratio and inner ring on the flow field and performance could be figured out by analyzing the numerical solution.