Modern engines deliver more power from less metal, sip less fuel, and meet emissions rules that would have seemed impossible a generation ago. Yet owners are discovering that this new efficiency often ...

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 ...

The 1970s marked a significant era in automotive engineering, particularly with the advent of powerful V8 engines. One standout model from this decade not only delivered impressive performance but ...

Airbus is teasing technologies that could enable its next-generation single-aisle jet, including innovative engine and wing designs aimed at boosting efficiency. The Toulouse-based airframer provided ...

What if the engine of the future wasn’t just a dream, but a reality? Imagine a power source that combines the raw, exhilarating performance of a two-stroke engine with innovative efficiency, ...

Finnish manufacturer Wärtsilä introduced an engine back in 2015 that was so good, it snagged a Guinness World Records title for being the most efficient four-stroke diesel engine shortly after its ...

Despite its critics and moves toward electrification, the internal combustion engine is not yet dead. Though its design for passenger vehicles may have begun to reach its apex with Mazda’s Skyactiv ...

There's more to piston shapes than you might think. Whether it's domed, flat, or dished, all pistons have their fair share of pros and cons when it comes to performance and efficiency. Understand that ...

The days of internal combustion engines are numbered. Unfortunately, the exact number is constantly shifting, with regulators moving the goalposts so often that manufacturers are left scrambling to ...

Since its introduction in 1886 by Karl Benz, the automobile has been a fundamental force that changed the world. From enabling economic growth, bridging distances, and accelerating the development of ...

Combustion efficiency in internal combustion engines refers to the proportion of chemical energy in the fuel that is converted into useful mechanical work. Attaining high combustion efficiency is ...

The inline-six-powered M cars are gaining a new pre-chamber combustion system to help meet Euro 7 compliance standards, but ...