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 over ...

The rotary engine has been around for a very long time and while it's never really been mainstream, it still survives. How is this possible?

A Wankel engine is a type of rotary engine, but not all rotary engines are Wankel engines. Wrapping your mind around this idea will help you to better understand the similarities as well as the ...

Mazda’s rotary engine was fast, light, and iconic. So why did Mazda finally kill it off after decades of pushing the limits?

Reading over the 25 -page document, Mazda describes how a rotary engine is better suited for a hybrid layout over a traditional piston-driven ICE unit. Because of its compact nature, the rotary engine ...

We haven’t seen the last of the spinning triangles. Back in March, Martijn ten Brink, Mazda Motor Europe's vice president of sales and customer service, ignited gearheads everywhere when he told Dutch ...

Mazda's rotary engine could make a comeback, though its purpose will be much different compared to its previous life powering the automaker's sports cars. Instead, Mazda is toying with the idea of ...

The inline configuration is arguably the most common automotive engine design for plenty of reasons, including simplicity and the low cost of producing these motors. We also have plants with the ...

Rotary indexer’s are standard issue in most machine shops. These allow you to hold or chuck a work piece, and then a graduated handle lets you to rotate the workpiece. Useful when you want to drill or ...

Rotary engines are already known for their high RPM; the smaller they get, the higher they tend to rev. So what happens when the world’s smallest rotary engine gets put to the test? Well, 30,000 RPM ...

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 ...

Rotary engines, also known as Wankel engines, have some of the most rabid and loyal followings of lovabale nutjobs of any pretty-much-failed technology. I think rotaries are fantastic, but, let's be ...