The rotary engine has been absent on the frontline for quite some time, and it's on the way back. But not with Mazda.

You'd think measuring an engine's displacement would be simple, but there's a long history of trying to figure out how to ...

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, ...

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe ...

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 nothing ...

Chinese firm Dongan Auto revives the Wankel engine, developing a lightweight prototype aimed at next-gen aerial mobility ...

If there's one thing forever associated with the Wankel rotary engine, it's Mazda. Powering production vehicles from the Cosmo's launch in May 1967 to the last RX-8 leaving the plant in June 2012, the ...