Rotary engines have plenty of quirks, but they can still put up some impressive power figures. Here are some of the most ...

Mazda has employed some clever tricks in the new rotary engine. Mazda's rotary engine is back, though it's not exactly what everyone wanted. Unlike its previous applications, the returning Wankel ...

super-efficient engine that functions a lot like Wankel rotary units. Despite that, LiquidPiston says the unit can deliver 50 percent efficiency compared to a traditional gasoline engine which ...

The engine itself features a novel design that's kind of like an inside-out Wankel rotary engine, and delivers a jaw-dropping power density of up to 1.5 horsepower per pound. At 210 lb ...

The natural motors that power tail-like appendages in bacteria seem to have a single evolutionary origin, allowing parts from ...

It's a multi-fuel, supercharged rotary engine that's only the size of a basketball ... As for the XTS-210 engine that lies at the heart of the new Army generator, it too can be used in multiple ...

Saga also told AutoNews that the new hybrid powertrain setups would get traditional gas engines, or could utilize any of the brand's two in-development rotary units: "An inline-four or inline-six ...

Mazda is once again manufacturing the rotary engine, but before you get too excited thinking it’ll be found in a sporty RX-7 successor, best temper those expectations. That’s because the new ...

The new Toyota Prius is a PHEV, while Mazda’s MX-30 R-EV is a rotary-engined range extender. Which takes charge here?

“The rotary engine was the only option that could be ... emphasized the significance of the new version’s introduction for the automaker. “We have been involved in the creation of the ...

The new MX-30 R-EV is by no means a successor ... engines use circular pistons that move up and down a cylinder, a rotary engine uses triangular-shaped rotors that spin around a central shaft.