自動車用トルクコンバータのステータ周り流れ解析(G05-10 流体機械(2),G05 流体工学部門一般講演)

概要

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There have been stronger demands in recent years for automotive torque converters with a flatter design that reduces their axial length. This situation has resulted from the use of larger engines with more cylinders in front-wheel-drive layouts and the advances seen in the functionality of transmissions through the addition of more speed ranges and the adoption of continuously variable transmissions (CVTs). The use of fluid flow analysis to optimize the blade design of a torque converter is an effective way to prevent a decline in hydrodynamic performance due to a flatter design, but the accuracy of the analysis presents a problem. In this work, particle image velocimetry (PIV) was used to measure the flow velocity around the stator, which is the torque converter element that has the most complex flow patterns. The optimum analysis conditions were determined on the basis of the correlation with the analysis results, and those conditions were applied to evaluate the results of the fluid flow analysis.
2004-09-04