There's more to piston shapes than you might think. Whether it's domed, flat, or dished, all pistons have their fair share of pros and cons when it comes to performance and efficiency. Understand that ...

Gasoline and diesel engines feature many differences aside from fuel type. Compared to gasoline engines, a diesel is typically a lower-revving, torquier design, hence why it's often preferred over ...

An internal combustion engine for unmanned air vehicles that uses a disk rather than pistons is undergoing bench testing. The project aims to develop a 16.3kg (36lb) powerplant that generates 77hp ...