Piston rings are small engine parts with a big job. They seal combustion pressure, control oil on the cylinder wall, help ...

Just about every piston engine is defined by two basic measurements: bore and stroke. Bore is the diameter of the cylinder. Stroke is the distance the piston travels from bottom dead center to top ...

It's an argument practically as old as the combustion engine itself: What's the best configuration of cylinders? V6 or V8, V8 or V12, straight engines versus V engines, and so on. And, in this case, ...

In this video, we review the Avadi MA 250 engine, a unique rotary engine design that features a piston-based mechanism where ...

Converting the ignition of a fuel-air mixture into usable mechanical energy lies at the core of a dizzying number of internal ...

On the outside, as an engine exhibits vibration, drivers might find its revs satisfying. But inside, large metal pieces are moving frantically as each cylinder essentially undergoes a series of small ...

Powering thousands of Class 8 trucks with massive amounts of torque, stellar economy and proven reliability, the Detroit DD15 ...

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 ...