4 Reasons Why The Rotary Engine Is Dead. The Wankel engine was last seen in a production car in the Mazda RX-8, and currently there are no rotary engines in production. Mazda may bring it back in ...

Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and ...

A rotary engine may go against the automotive norm, but it's actually a very simple alternative - in technical terms at least.

The Wankel engine is the most famous rotary engine, but it isn't the only kind. While they aren't as common these days, they haven't fully gone away.

Cross-section of the C 111 Wankel engine shows routing of intake air from air cleaner to the butterfly valve located in the rotor case casting.

Another day, another Mazda rotary engine story, except this time, it’s from the automaker itself instead of a third-party speculator. Mazda announced a new division to “accelerate its research ...

This inside-out design solves most of the rotary engine’s problems LiquidPiston's designs will show up first in UAVs and generators.