Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and nothing ...

A new era of maritime engines may be dawning soon, as the world's first 100% hydrogen engine has reached a major milestone in ...

Japanese automotive giant Toyota has built some of the most impressive engines ever. Known for their indestructibility, smooth power delivery, fuel efficiency, and excellent tunability, these motors ...

Some agree that batteries are the clear winner in the race against hydrogen technologies, while others think the opposite. There's no such debate among internal combustion engine proponents. Almost ...

There are many differences between diesel and gas engines, including some less obvious aspects of engine construction, such ...

Inline-sixes tend to have problems tied to their size and length, higher camshaft flex and torsion, uneven air/fuel ...

Reports of the death of the internal combustion engine have been greatly exaggerated. In the wake of stalled consumer demand and stubbornly high costs, automakers around the world are furiously ...

Like it or not, the combustion engines that have driven our world forward and sideways for more than a century now are about to leave the scene. Not because they're no longer effective, but because ...

A better mousetrap? Even now, as electrification seems poised to end the internal combustion engine’s long run as the transportation motivator of choice, enterprising tinkerers continue to propose ...

Almost all gasoline engines, whether they're efficient-yet-less-refined four-cylinders, high-horsepower V6s, or growly and torque-rich V8s, use much the same process to create power. The "Otto cycle" ...