Efficient engines

Have your every drove your car on "fumes"? They're gas vapors that form when it evaporates. One man, John Weston, from Charlottle County, FL, has found these fumes useful and made a fueling system out of them so his car gets an incredible mileage: 463 miles per gallon! In European measurements (if I'm correct) this is 0.8L/100km!!! Wow! Not even VW's latest gadget car can't get this mileage!

The Wankel Rotary Engine, of unique design and origins, is the only mass-produced engine to have been conceived in the 20th century, while piston-crankshaft...

A better combustion engine is the one recently patented by Revetec, a small company from Australia. Their engine has been tested by independent parties. It has the same power as an ordinary engine, but it consumes half the fuel and it weights 50% less. It's also smaller than the average car engine.

The Waissi Engine is of an opposed-piston design, much like that being developed by Achates Power or EcoMotors, with one important difference: Waissi's engine...

EcoMotors, a Troy, Michigan startup company revitalizes the two-stroke engine, making it 50 percent more efficient than currently-used four-stroke engines and less polluting. Even Bill Gates and Khosla Ventures invested a total of $23.5 million in them.

The internal combustion engine (ICE) may be old tech, finding its roots over a hundred years ago, but it’s certainly not dead. Toyota’s new...

One of the biggest names in aviation, Pratt & Whitney, spent almost twenty years developing the geared turbofan engine that burns 12 to 15% less fuel than other jet engines. The new turbofan engine also cuts carbon dioxide emissions by 1,500 tons/plane yearly.

German car magazine, Auto Test, has named the Mercedes Benz B200 CNG and the ML 250 BlueTec 4Matic as the most environmentally-friendly, giving them...

In just about a month, Green Car Journal, at the 2014 Washington Auto Show, will present the winner of the 2014 Green Car Technology...

Typically, even a low-boost small engine turbo can deliver 25% more power than its non-boosted sister. That means that even a tiny turbocharged i3 can...