Free piston engines could achieve efficiencies of 50% which is almost double a regular gas combustion engine. However, new super efficient diesel engines could be even better, plus diesels would be ...

To achieve the US Department of Energy's goal of 55% thermal efficiency, engine manufacturers will continue to bring new technologies to construction equipment Engine manufacturers are on the ...

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 ...