Most modern gasoline and diesel-powered engines found in the cars and trucks seen on today's roadways rely on the four-cycle-engine principles developed in the late 1800s by Nikolaus Otto, Gottlieb ...

Regardless of what type of vehicle you drive, if it was built in the last few decades, its engine has some form of emissions control system designed to reduce the harmful environmental impacts of ...

The internal combustion engine, despite being a century-and-a-half old, is still an impressive marvel of engineering. There are several variations of engine design that have been experimented with ...

Brian Cooley is CNET's Editor at large and has been with the brand since 1995. He currently focuses on electrification of vehicles but also follows the big trends in smart home, digital healthcare, 5G ...

To achieve true independent control of combustion in each and every cylinder of a car’s engine, you need command over three things: air, fuel and spark. For a little while now, most every engine ...

C. Schernus, F. van der Staay, H. Janssen, J. Neumeister, B. Vogt, L. Donee, I. Estlimbaum, E. Nicole and C. Maerky Electromechanical valve trains in camless engines enable virtually fully variable ...

What is a 5.9-liter Cummins diesel engine? Well, for hardcore enthusiasts, it's arguably one of the most popular oil-burners ever produced. Cummins engines were dominant in agriculture long before ...

The first production car engine with variable valve timing (VVT) came from Alfa Romeo in 1980. It was installed in the fuel-injected Alfa Romeo Spider. Before this, a few experimental systems existed, ...

Even as electric cars become more common, automakers are still trying to squeeze more efficiency out of internal-combustion engines. That’s led to more complex solutions to the age old task of mixing ...