It's not a rotary, per se, but the internals do rotate. The engine. It's a testament to its initial design, as whether it's in a V-configuration, W, H, or even flat, it really hasn't changed its ...

Small engine manufacturer LiquidPiston is developing a tiny, lightweight, super-efficient engine that functions a lot like Wankel rotary units. Despite that, LiquidPiston says the unit can deliver ...

Its unique rotary design enables it to deliver ... the first major steps in taking the XTS-210 engine mainstream. It's previously been tested in small planes and go-karts – but this will give ...

The rotary engine isn't perfect ... Aside from being an exciting new small sports car from the company that makes the beloved MX-5, the car is gorgeous, not to mention it could also represent ...

However, due to the design of the rotary engine, there is no way to keep the oil lubricating the seals out of the combustion chamber. Mazda engines include an injector pump which pushes small ...

It's a multi-fuel, supercharged rotary engine that's only the size of a basketball ... The resulting package is small and potent enough to meet the Army's requirements. Coming at 75 percent ...

That’s because the new rotary engine is being used in the MX-30 EV plug-in hybrid as a small and innovative range extender. As a result the new rotary engine is a much lower-output unit than ...

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

There's a hybrid system borrowed from Toyota, plus a copycat "strong hybrid" setup to come from within Mazda eventually, maybe with rotary engine power.

The model’s rotary engine is also intended as a backup for power production in emergencies and other contingencies. For example, if a household consumes 10 kilowatt-hours daily, electricity can ...

It's a chance to hear from a pilot who recently made history through an effort to try to make polio a thing of... well, ...