The pump is connected to the motor, and it pumps fluid (standard oil) into the torque converter. The turbine is linked to the gearbox, and it spins in the event the fluid in the pump hits it. The transmission has some fluid that can help it operate efficiently and efficiently. https://filter-gearbox16788.blogrelation.com/40329511/the-fact-about-filter-gearbox-that-no-one-is-suggesting