More an ancient tool than a groundbreaking gadget, the fire piston relies on basic chemistry to ignite a campfire with the simple pump of a hand. The new Aviator's Ember from Aerohart applies ...

While there have been many unusual engine designs over the years, there haven't been many advancements involving the inner workings of the piston engine, except for higher-quality components, since ...

Any oddball engine is clickbait crack for mechanical nerds, and the most compelling ones purport to introduce an entirely new combustion concept. "Not a four-stroke, not a two-stroke, a revolutionary ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both into a single ...

The first recognizable internal combustion engine was developed by Nikolaus Otto in 1861. Since then, the gasoline-powered engine has evolved immensely. However, the principles that underlie how ...

Unless you drive a Wankel rotary, your combustion engine vehicle has pistons, and each of those pistons has three rings. Why is it always three?

There are several types of engine compression testers. Be sure to use the correct type for your specific engine, otherwise you may get an inaccurate reading.