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?

Partners in an EU-backed project to validate engine technologies that could help deliver a 25% fuel-saving over current-generation powerplants are deep into their initial design work as they eye later ...

The engine works by taking heat from the hot reservoir, converting some of it into useful work, and rejecting the remaining heat to the cold reservoir. The thermodynamic cycle followed by the engine ...