The impeller was attached to that housing plus the housing attached to on engine shaft. It offers curved plus angled vanes. It rotates because of the engine rate and/or includes automated transmission fluid. With regards to rotates utilizing the motor, all centrifugal force causes some sort of fluid go outward. The cutting blades of this impeller are designed in such a way it directs all fluid towards will turbine blades. It will act as your centrifugal pump which sucks all fluid from the automated transmission additionally brings that it toward turbine.