Heat is a byproduct of combustion. Both air-cooled and water-cooled engines need to dissipate that heat to keep the engine from running too hot. Can piston rings play a role in managing that heat?
The turbocharger achieves this by using the engine's exhaust gases to spin a turbine, the turbine spins an air pump, and the air pump, well, pumps air. So not only do you have a bunch of extra moving ...