There are some seriously quick plug-in hybrid vehicles gracing the world's roads, but this is the example with the largest ...

BMW may have cracked one of the biggest challenges facing internal combustion engines: soot buildup. A newly filed patent outlines a solution that promises to enhance engine efficiency while ...

The stroke is considerably shorter, and uses energy of the engine's exhaust vacuum to assist in the combustion cycle, also enabling it to produce six times the number of power strokes per ...