Every time Mazda files a patent with the word "rotary" anywhere near it, the same ritual plays out. Enthusiast outlets dust ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Mazda and the rotary engine have a relationship that refuses to end. Years after the RX-8 disappeared from showrooms, the ...

Mazda’s rotary engine has spent much of the past decade looking like an engineering curiosity from another era, but a newly ...

When it comes to unconventional engine design, few exceed the Wankel rotary in terms of weirdness. Despite that, the same basic principles of internal combustion apply here: Fuel and air are mixed and ...

A fresh US patent filing takes on the exact emissions weakness that has kept Mazda's rotary revival stuck on concept-car ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both into a single ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...

The Wankel rotary engine offers one of the most unique sounds of any ICE. Most famously used in various legendary Mazdas like the RX-7 and the supposedly banned Le ...

There have only been a handful of rotary engine-powered cars, and most of them start with "Mazda." While fascinating and not without their benefits, rotary engines are pretty inefficient, don't make a ...