Many of you have seen the process of making this rotary valve engine with a different intake and exhaust system and how I ...

Rotary might be a good name for this sort of engine, if the name wasn't already taken. Everything inside the crankcase rotates, but unlike a Wankel-style rotary engine, this design uses a piston with ...

The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix Wankel ...

Wankel engines first saw use in production cars as early as 1964 — and not even in a Mazda, but rather in an NSU. That little single-rotor powerplant quickly evolved into the more typical two-rotor ...

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe of the late 1980s.

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 ...

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 had its moment of automotive glory with Mazda, but while the Japanese automaker's rotary engines where small-displacement, high-revving, buzz bombs, one American startup tried a very ...

As the old saying goes, there is no replacement for displacement. That's not the case when it comes to rotary engines, which typically have very small displacement. Instead of cubes, if you want a ...

Jacob is a senior automotive journalist and editor with over a decade of experience in the industry. Before joining CarBuzz in 2023, he served as Chief Editor and Senior Car Reviewer at AutoDeal and ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...