Porsche's new patented six stroke engine might not be a thing of reality yet, but the new technology is still very ...

Both pistons and valves move in and out of a space at the top of engine cylinders known as the “combustion chamber”.

The phrase "Atkinson cycle" is as synonymous with hybrids as the words "Toyota" and "Prius". But what does that even mean and ...

This could also mean a cleaner, more environmentally friendly combustion engine with reduced emissions and more complete ... with designs ranging from water-injection systems to more complex piston ...

Less fuel and emissions, more power, higher revs. EcoMotors' OPOC engine promised it all. Investors, including Bill Gates, ...

Stroke indicates how many times the piston in an engine travels up and ... developed the first commercially successful internal combustion engine in 1860. Though rudimentary and fueled by coal ...

The Pikes Peak International Hill Climb is one of the most demanding (and dangerous) hill climb races on the planet. The race ...

From trains to tanks to finally tearing up the 24 Hours of Le Mans, today diesel outperforms gas for power, efficiency and ...

The Environmental Protection Agency and California Air Resources Board have established that NOx and particulate emissions ...

Abandoned without the sparkplugs, the car’s engine is seized beyond hope, and the mechanic has to tear it apart to find the ...