The portion of the rod between the upper and lower ends sees a complicated mixture of both rotary and oscillating motion, thus making it the most overworked and highly stressed part in the engine.

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

Mazda stayed faithful to the rotary engine in the gas era, and some new innovations mean that the rotary will continue in the ...

After decades of usage, Mazda discontinued the rotary engine in 2012. Now, many people are wondering if the company has plans to bring it back.

To this day, the Mazda 787B is the only rotary-powered car to win at Le Mans. How did it survive the 24 hours? Why can't it hold up to daily driving?

While most ICE cars are powered by a series of pistons, rotary engines are different. They require apex seals to work, but those have a bad reputation. Why?

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

The final two-rotor "Renesis" engine was built on June 21, 2012. The final RX-8 was built a day later on the 22nd.

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

Mazda is bringing back the rotary engine — not for a successor to the RX-8 but as a range-extender for the MX-30 electric car.

The developer of a line of advanced rotary diesel and multi-fuel internal combustion engines is expanding into the renewable energy game. LiquidPiston's X-Engine, which we've covered previously ...