The Adams-Farwell rotary engine works by spinning within the engine compartment like a horizontal windmill. It's both innovative and a little scary.

Unlike conventional diesels, the Commer Knocker engine used opposed pistons and a single crankshaft, giving it big torque, ...

PGO working on rotary valve scooter engine The good ‘ol four stroke internal combustion engine has life left in it.

The U.S. Army Mobile And Survivable Command Post (MASCP) may use a new type of mobile generator powered by a revolutionary ...

Another day, another Mazda rotary engine story, except this time, it’s from the automaker itself instead of a third-party speculator. Mazda announced a new division to “accelerate its research ...

Mazda’s rotary engine is coming back in the spotlight, but this time it’s not just a nostalgic callback to the RX-7 glory days. Instead, it’s quietly shaping the brand’s electrified future ...

One of the rotary engine's biggest champions, AIE has been advancing rotary design since 2012. Its latest release shows that Wankel engines can be a perfect fit for compact, power-demanding ...

While Mazda’s rotary engine re-entered production last year for the first time in over a decade, it sadly was not revived in an exciting sports car but rather serves as a range extender in the ...