The Mazda RX-7 FD3S features a 4-rotor 26B engine producing a high-revving rotary engine note at 11,000 RPM. This video ...

The engine in question was the Wankel rotary, named after German engineer Felix Wankel, who first patented the concept in 1929. Instead of pistons moving back and forth, the rotary engine used a ...

The electric motor might carry the hype banner at the moment, but some minds remain convinced that there's plenty of innovation left to be extracted from internal combustion. AIE is one of the rotary ...

Displacement: 15.9 L (970.38 cu in.) Bore and Stroke: 115 mm (4.53 in.) x 170 mm (6.69 in.) The rotary engine reduced rough the running and overheating of early air-cooled engines, namely.

Rotary might be a good name for this sort of engine, if the name wasn't already taken. Everything inside the crankcase rotates, but unlike a Wankel-style rotary engine, this design uses a piston with ...