China is developing a groundbreaking air-breathing engine, potentially powering next-generation fighter jets and hypersonic ...

Revolutionary engine prototype three decades in the making could replace combined turbine-ramjet systems in high-speed flight.

China has unveiled a new type of air-breathing engine that could replace today’s turbine-ramjet ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both into a single ...

Perfectly tuning the heat range of an engine's spark plugs is something of a dark art to all but the most well versed tuners and the engineering egg heads at automotive OEMs. Getting the spark plug ...