When it comes to engines, everyone is always looking for more. More horsepower, more torque, more efficiency. One company has ...

Wed like for the air/fuel mixture to be relatively uniform throughout the combustion space (in reality, this is difficult at best); a uniform burn-residue color across the face of the piston is ...

Of course, you're probably saying to yourself, "Yeah, great, but a piston isn't a ball." When it comes to how fluids act (and the air you and your engine breath are fluids), creating a boundary ...

But it also means that mixing the fuel and air can be tricky, which is why diesel engines have specially-shaped pistons. A diesel engine's piston head looks like someone took a scoop out of the top.

Piston engines rely on oxygen to efficiently burn fuel, but as you fly higher, there's less oxygen in the air. Most piston-engined aircraft would have difficulty flying at airliner altitudes.

These Air-Powered Lego Piston Engines Are Hypnotizing To Watch. The engines are made using Lego's own air pistons, and they come in two-, three-, eight-, and even 12-cylinder configurations.

This magazine fed repeater is a spring piston air rifle that utilizes the company’s Inertia Fed 10x Quick-Shot technology. The Swarm Magnum is a gas piston break barrel rifle, that auto-loads by the ...

World’s Fastest Piston-Power Airplane A star team led by a racing phenom grabbed the record. But there’s one left to break.