The mind-bending world of birotary engines - a hybrid of piston and rotary technology that could revolutionize aviation. But ...

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...

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 ...

It’s common in this line of work to stumble upon a story while researching for another story. Digging through archives and ...

Mazda was not the first car manufacturer to put a rotary engine in their cars, but they are the ones that made them popular. Everyone knows about the Mazda’s obsession with rotary engines, they even ...

Not only are Chinese carmakers redefining the world of EVs, but one of them is now taking on the Wankel rotary engine. Originally designed by German engineer Felix Wankel and later refined into a ...

Wankel engines first saw use in production cars as early as 1964 — and not even in a Mazda, but rather in an NSU. That little single-rotor powerplant quickly evolved into the more typical two-rotor ...