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

The Honda Chimney Engine represents a bold leap forward in engine technology, integrating a valve within the piston and ...

The rotary engine's inherently fewer moving parts reduced vibration and mechanical stress, which meant it could run reliably at extremely high RPMs for long periods -- perfect for a 24-hour sprint.

In 1954, Wankel finished designing a rotary piston engine for NSU known as the Drehkolbenmotor (or the DKM). This rotary-valve-controlled 250cc motorcycle engine was based on the company's Lux and ...

Automakers are in an era in which an engine can't change much from a generation to the next one - but this rotary motor beats ...

Felix Wankel’s rotary engine is an engineering marvel because of its simplicity. Rather than the conventional pistons, camshafts, valves, and lifters, his design has a roughly triangular-shaped ...

A new rotary engine for Mazda sports cars is entering development, and could bring all sorts of groundbreaking tech to the RX-7's successor.

Every story dealing with a new rotary engine from Mazda lands in a different place on the matrix of possibilities between "Coming soon!" and "Never gonna happen!" In 2011 it was speculated that ...

Another day, another Mazda rotary engine story, except this time, it’s from the automaker itself instead of a third-party speculator. Mazda announced a new ...

One of the rotary engine's biggest champions, AIE has been advancing rotary design since 2012. Its latest release shows that Wankel engines can be a perfect fit for compact, power-demanding ...

Mazda explicitly says that the rotary engine development group consists of 36 engineers who have previously worked on state-of-the-art powertrain systems.

Japanese automaker Mazda discontinued its trademark pistonless rotary engine in 2012. That's also when the RX-8 quad coupe was canned with no successor in sight. Everyone and their dog hoped that ...