While the vast majority of engines have used the same piston and cylinder design for decades, there have been exceptions like ...

Mazda's five-decade-long, largely futile efforts on behalf of the rotary engine demonstrate how difficult it is to unseat the conventional piston engine. Yet new concepts continue to emerge, ...

Sandia National Laboratory led by Sandia researcher Peter Van Blarigan that has been testing physical components of free-piston engines which could be 50% efficient. This is about twice as good as ...

It’s pretty obvious that electricity is the future for our cars. But as any EV owner now can tell you, it has some limitations. Range and charging times are their biggest limitations, but the Toyota ...

Free piston engines could achieve efficiencies of 50% which is almost double a regular gas combustion engine. However, new super efficient diesel engines could be even better, plus diesels would be ...

One-of-a-kind 1913 prototype Bullock Creeping Grip crawler tractor with its rare Heer opposed-piston engine gets cranking.

The Rootes TS3 was a robust, compact engine that punched way above it size.

Just because LEGO Technic is technically a toy doesn’t mean that you cannot do solid engineering with it, like building air-powered engines. After first building a simple air-powered piston engine, ...

Piston-engined fighters ruled the roost for thirty years. A brutal survival of the fittest ensured a rapid evolution of these characterful machines; the final fighters were over six times faster and ...