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 ...

At the Low net-GHG Fuel and Engine Technologies Symposium at the University of Wisconsin in June, researchers noted that the life of familiar internal combustion engines may be extended. This will ...

It's been a long time since the automotive world has bothered with the mixing of oil and gas of the two-stroke combustion cycle — but soon, it may come time to rid ourselves of four-stroke engines, if ...