Torque converter takes benefit of the centrifugal force and throws the oil outside of it. It works like an oil pump. Fluid from inside the converter casing spreads all over the turbine. The turbine absorbs this fluid and starts rotation. It is actually right hooked up for the output https://gearbox43185.bloguetechno.com/the-smart-trick-of-gearbox-that-nobody-is-discussing-68915512