Together with the 3-passage torque converter, two passages are employed for transmission oil (ATF) stream from the torque converter and for clutch cooling, when the 3rd passage is utilised independently to regulate the lock and unlock of your clutch. The torque converter clutch is a cornerstone of modern automatic transmission https://torque-converter-clutch18395.blogrenanda.com/40572185/a-secret-weapon-for-torque-converter-clutch