Pump (Impeller): The driving member that may be attached to your motor. It spins Along with the motor and moves transmission fluid throughout the torque converter. In a very two-passage torque converter clutch actuation system (as in the images above), the lock-up clutch is put in within the turbine hub, https://torqueconverterclutch54074.full-design.com/the-2-minute-rule-for-torque-converter-clutch-76627976