As a result, they are considered more efficient by some metrics and require fewer moving parts to function. The first rotary engines were primarily used for aircraft during World War I ...

In the late 1960s, a Japanese automaker took a bold leap with an unconventional engine that defied traditional design.

If there's one thing forever associated with the Wankel rotary engine, it's Mazda ... the French company altered a significant number of components. These improvements include features such ...

Then came a three-rotor, which first appeared in the Eunos Cosmo, before peaking with the massively powerful four-rotor in the 787B Le Mans race car, one of the greatest rotary engines ever ...

Although there was briefly a company called Rotary ... few moving parts and offers very smooth power transfer and high power to weight ratio. The downside, though, is that the engine deliberately ...

The issue, as it has pretty much always been, is environmental. While the Wankel rotary engine does indeed make a lot of power in a small, lightweight package, it does so while burning lots of ...