The rotary engine may have mostly been abandoned for the piston design found in most conventional car engines, but a couple ...

The Rotary Engine's Nazi Inventor The history of the rotary engine is a strange and wonderful tale that dates back as far as 1588 when Ramelli invented the first rotary-piston-type water pump ...

It's perhaps only fitting for a rotary engine to power one of Mazda's most eagerly awaited cars, the rumored RX-9 ...

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.

If you read Part 1 of the Rotary Engine Evolution series, you already have a good sense of where the Wankel rotary engine design came from and evolved into. It's all well and good to understand ...

The Wankel has a triangular rotor in an oval housing, and the Rotary X has an oval-shaped rotor in a triangular housing. Both engines only have two major moving parts — the rotor and the shaft.

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 ...

Mazda's use of the Wankel rotary engine solidified the brand in the world of sports cars, but is there still a future for this technology?

LiquidPiston's tiny rotary engine is a modern take on the Wankel rotary, and it's around the same size as a basketball.

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

Since 1961, Mazda has been a champion of the rotary engine, and today it says it has produced its 2 millionth example ...

The Rotary Engine Is Back as a Range Extender Hybrid in the Plucky MX-30 SUV Will Mazda bring back the rotary engine in other vehicles too, and is it coming to the U.S.?