The pump is linked to the engine, and it pumps fluid (typical oil) into your torque converter. The turbine is connected to the gearbox, and it spins if the fluid in the pump hits it. Even so, In case the transmission filter is serviced sparingly or according to your automobile https://filter-gearbox63727.thezenweb.com/little-known-facts-about-filter-gearbox-72118561