The impeller (one) is rotated from the crankshaft and it converts the mechanical Strength of the crankshaft into kinetic Electricity by putting the fluid in movement. Inside a torque converter you'll find at the least 3 rotating elements: the impeller, that is mechanically pushed because of the primary mover; the https://torque-converter-clutch97428.tinyblogging.com/5-easy-facts-about-torque-converter-clutch-described-77661969