Free-piston engines represent a class of internal combustion machines distinguished by the absence of a crankshaft mechanism, enabling variable stroke length and compression ratio, with the piston’s ...

Converting the ignition of a fuel-air mixture into usable mechanical energy lies at the core of a dizzying number of internal combustion engines developed over the course of more than century.

There's no need to sugarcoat what bad piston rings can do to your engine. Those rather thin cast-iron or steel rings may look small and irrelevant to untrained eyes, but they play a vital part in ...