The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix ...

Since it looks like Mazda may very well revive the Wankel rotary engine as a range extender for electric cars, there's no better time to become reacquainted with the quirky internal-combustion engine.

Talk of radically different designs always leads to a single name – Wankel. The Wankel rotary engine, most notably used in automobiles by Mazda, has been around since the late 1950’s.

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 ...

Thus rotary engines tend to have high specific outputs ... Just 847 were sold before Citroën pulled the plug, even going as far as trying to buy back all the examples it had already delivered.

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

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 ...

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 ...

Both 787Bs were powered by 2.6-liter four-rotor engines that were detuned to 700 horsepower. Afterward, the FIA announced that rotary engines would no longer be allowed at Le Mans.

This development group has the hard task of trying to make the rotary stack up to modern internal combustion engines in terms of emissions and fuel-economy standards. Neither factor were ever ...

In the world of executive cruisers, the BMW 5 Series has been the benchmark for years. Here we’re living with its future: the ...