为改进液力变矩器叶栅设计的等环量分配法，提出了环向匀加速环量分配方法．将液力变矩器内部流体质点的运动分解为轴面运动和环向运动，并基于动量矩方程和速度环量表达式推导出叶片环向分力的表达式，进而得到速度环量分配与束流环向加速形式的关系． 在确保束流环向加速过程稳定的前提下得到了环向匀加速环量分配方案，并与等环量分配方案进行对比分析． 应用计算流体力学对采用这两种方案设计的叶片液力变矩器进行性能预测，结果验证了文中提出的环向匀加速环量分配方法的有效性．

In this paper，a new momentum distribution method with circumferential uniform acceleration is proposed to improve the traditional momentum distribution method used in the blade design of hydraulic torque converter (HTC)． In this method，the fluid particle movement inside the HTC is decomposed into the axis plane movement and the circumferential movement，and the equation of circumferential force of blades is derived based on the equations of the angular momentum and the velocity momentum． Then，the relationship between the velocity momentum and the circumferential movement is obtained，and the new momentum distribution scheme with circumferential uniform acceleration is obtained with a stable circumferential acceleration process of flow bundle． The new scheme is compared with the traditional momentum distribution scheme，and the computational fluid dynamics(CFD) is utilized to predict the performance of the HTC designed according to the new and traditional schemes．Thus，the effectiveness of the new momentum distribution method is verified．