Torque converter usually takes benefit of the centrifugal pressure and throws the oil from it. It works like an oil pump. Fluid from within the converter casing spreads all through the turbine. The turbine absorbs this fluid and starts rotation. It is straight hooked up to your output shaft. https://gearbox20752.blogolize.com/the-fact-about-gearbox-that-no-one-is-suggesting-72856240