液压与气动2025，Vol.49Issue(9)：67-76,10.DOI:10.11832/j.issn.1000-4858.2025.09.008
液力变矩器搅油损失及其抑制研究
Analysis and Suppression of Oil Whirl Loss in Torque Converter
摘要
Abstract
The torque converter serves as the hydraulic transmission system core.Engine power transmits entirely through it to the transmission system.Torque converter efficiency directly impacts overall vehicle fuel economy.Operating immersed in oil,its high-speed rotation agitates viscous fluid.This generates oil churning loss,affects power transmission system efficiency.Simulation and experimental research address torque converter oil churning loss.A particle-based method simulation model establishes the torque converter oil churning flow field.It calculates torque and power losses under different rotational speeds and oil temperatures.A fully-enclosed oil shield designs for the torque converter to suppress oil churning loss.Experiments verify simulation model accuracy and feasibility and verify oil churning suppression method feasibility.Results show that torque converter oil churning torque increases approximately linearly with rotational speed.Oil level height significantly impacts oil churning torque loss.Higher oil levels cause greater churning losses.Adding the oil shield effectively suppresses oil churning torque loss.Suppression efficiency exceeds 83％across different oil level heights.Research findings provide an oil churning torque numerical calculation method and form a basis for hydraulic transmission gearbox oil pan oil level design.关键词
液力变矩器/CFD/搅油转矩/粒子法Key words
torque converter/CFD/oil churning torque/particle method分类
机械制造引用本文复制引用
李文达,柳景灿,夏艳,郭猛,刘城..液力变矩器搅油损失及其抑制研究[J].液压与气动,2025,49(9):67-76,10.基金项目
重点实验室基金(202320301118) （202320301118）
十四五预先研究项目基金(MKF20210092) （MKF20210092）
型号项目基金(MKF20240093) （MKF20240093）
