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 ...

That alone reduces emissions and increases engine longevity. The rotary valve also means that the blockages caused by conventional poppet valves are not an issue as poppet valves are not needed in ...

If someone tells you they have seen a rotary engine, the chances are that you will immediately think of a Wankel engine, as you might find in some of the more exotic Mazda sports cars. But there is ...

Four-stroke engines, which make up 99% of vehicles on the road, rely on a system for managing air intake, compression, ...

Have you ever heard of the Silent Knight? It was a unique engine that ditched noisy valves for a weirder, quieter, and more ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

February 2, 2006 UK-based RCV Engines is best known globally for its range of model aircraft engines but the unveiling yesterday of a prototype 125cc Rotating Cylinder Valve (RCV) scooter engine could ...

A rotary engine, often referred to as “Wankel”, owes its name to German inventor Felix Wankel, who first developed the concept. Though he initiated the design, it was the Japanese automaker Mazda that ...