ROTARY FLOW

The movement of the oil as it is carried around by the pump and turbine in a torque converter . The rotary motion is not caused by the oil passing through the pump, to turbine, to stator , etc., as is the case with vortex flow . Rotary flow is at right angles to the center line of the converter whereas vortex flow is parallel (more or less depending on the ratio between the speeds of the pump and turbine).