When it comes to aircraft propulsion, two common types of engines are frequently discussed: piston engines and turboprop ...

The Lycoming O-320 engine, a four-cylinder, horizontally opposed, air-cooled engine, is so reliable that they are still in ...

Eight opposed pistons in four cylinders making 120 hp from 0.5 liter? Is it too good to be true? Any oddball engine is clickbait crack for mechanical nerds, and the most compelling ones purport to ...

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?

The defining characteristic of a two-stroke engine is to fire (combust) every time the piston is at top dead center. This makes them highly power dense, but also notoriously makes two-stroke engines ...

I love weird engines—give me a rotary, a turbine, or, hell, even a flat-eight and I’ll be happy. That’s why I was so excited when I heard that INNengine of Granada, Spain had produced a ...

Inside of almost every modern internal combustion engine (ICE) are pistons, which move up and down inside of cylinders. These move up and down to spin the crankshaft. The crankshaft is then connected ...

"Until 1974, this demand was met by increasing average piston speeds and displacement of four-cylinder engines in connection with progress in diesel combustion. Considering wear, fuel consumption ...

In the video after the break, [Brick Technology] uses LEGO to gain some practical insight into the world of piston engine design, from single-cylinder all the way up to radial twelve-cylinder engines.

recesses along the longitudinal skirt of each piston could help reduce friction against the cylinder walls, reducing internal friction and increasing efficiency, potentially helping the engine ...