PVC air cannons are great, and everyone should build one of these at some point in their life, but what really makes this build exceptional is the valve. [Ben] created a piston valve for this ...

The footage captured shows the valves injecting fuel and air. A spark plug ignites the fuel which makes the combustion gases push the piston, to drive the crankshaft. Watch the video to see it in ...

When we here in the modern age think of an “engine,” we are usually thinking of a four-stroke, four-cylinder, gasoline-fed, internal-combustion engine with the valves on the top. But why must that be ...

There could also be advantages for valve sizes (or the number of valves) fitted above each piston. Although Ferrari’s patent only specifies the engine would have at least two cylinders ...

allowing for a more compact powertrain without having to sacrifice piston surface area or displacement. As an additional benefit, Ferrari might be able to increase the valve surface area either ...

Following is a transcript of the video. Narrator: Engines are made up of over 300 bolts and dozens of moving parts, like pistons and valve springs, that all work together to turn combustion into ...