The common torque converter structure dictates the stator be prevented from rotating under any condition, hence the term stator. In exercise, on the other hand, the stator is mounted on an overrunning clutch, which helps prevent the stator from counter-rotating with respect into the prime mover but permits ahead rotation. https://torqueconverterclutch08529.ourcodeblog.com/34153165/what-does-torque-converter-clutch-mean