Internal combustion engines are a relatively new development in terms of human history. A lot of people still alive today ...

Rotary engines have an aura of cool. In games of Top Trumps, the V12 might have been king, but a rotary was a joker, a wild card.A lack of mainstream success no doubt contributes; there are ...

Since it looks like Mazda may very well revive the Wankel rotary engine as a range extender for electric cars, there's no better time to become reacquainted with the quirky internal-combustion engine.

LiquidPiston's Hyper-Efficient Engine: Turning the Rotary Inside Out. A new spin on the internal combustion engine by startup LiquidPiston aims for a leap in efficiency from 20 percent to 50 percent.

This Tiny ‘Inside-Out Wankel’ Rotary Engine is the Size of a Basketball. A modernized version of the rotary engine is being commercialized, and this one won't chew up apex seals.

However, a lack of torque from the rotary engine meant it was short-lived. A version of the Mazda Cosmo was also exported to the U.S. in 1976 and 1978. Sales were low and it's nearly impossible to ...

While we’ve explained how the Wankel rotary engine works, and we’ve talked about how it might not be totally dead, we haven’t had a chance to see what’s actually going on inside of the ...

Imagine triangles spinning around a shower curtain rod inside a beer keg—that is an elemental description of the screaming Wankel rotary engine.This powerplant is beloved by gearheads the world ...

A fresh and extremely powerful take on the rotary engine. Connecticut company LiquidPiston is developing a portable generator for the US Army using its X-Engine, which promises as much power as ...

All this ties into the fundamental principles behind how Wankel rotary engines work.The common rotary is, essentially, a triangle spinning inside of an eccentric housing on an off-axis rotation.

LiquidPiston says its new XTS-210 solves the efficiency, lubrication and fuel type issues of Wankel rotary engines. This supercharged, liquid-cooled two-stroke claims 5X the power of an equivalent ...