Mazda was an early and steadfast proponent of the Wankel engine. It signed a development contract with NSU in 1959 and displayed its 2-rotor and 4-rotor Wankel engines at the 1964 Tokyo Motor Show.

The Wankel rotary engine is one of the most unique and innovative engine designs ever created. Unlike the conventional piston ...

The Wankel Rotary Engine's Role in an Experimental Sports Coupe. From the December 1969 issue of HOT ROD: After talking about Wankel engines for years, foreign automobile manufacturers started ...

In the late sixties and early seventies, many car companies were enamored with the power density of Wankel rotary engines, including NSU, Mazda, Mercedes-Benz and General Motors. GM ultimately ...

There’s a new spin on the rotary engine. Liquid Piston, a Connecticut-based engineering firm, has turned the classic Wankel engine design inside out to create a more efficient, and cleaner ...

So, a Wankel engine needs constant oil top-ups while dealing with the products of that burnt oil. And those apex seals wear down. "[The Wankel] has this long, skinny, moving combustion chamber.

The engine's main advantage is a greater power density than a Wankel can achieve because a more-balanced design allows the motor to rev higher—so says Peter King, one of two partners at REDA.

Naming concerns aside, Wankel is the most common and successful rotary engine design, and the only one to make it into mass production. Back in the early '60s, NSU and Mazda had a friendly ...

All is not lost, though, as Mazda confirmed back in October that the rotary engine will make a reappearance and be called the SkyActiv-R. Rumors of the application fly far and wide—maybe it will ...

Mazda has confirmed the return of the Wankel rotary engine in 2020, eight years after it put it on hiatus with the cancellation of the RX-8 sports car. But things are going to be a little ...