How Do They Work?

the answer to "how" lies in the blade angles inside the converter. as you may/should know, a TC is just a turbine/impeller assembly. by changing the angles on the blades on the turbine or impeller, you can change the forces on the fluid inside, changing the slippage characteristics.

that is proabably not all there is to it, but i think that is a good way to look at it.

i don't know if the stator is changed to alter the TC characteristics.....