In 1954, Wankel finished designing a rotary piston engine for NSU known as the Drehkolbenmotor (or the DKM). This ...

Mazda usually gets credit for being the first brand to use the Wankel rotary engine. This defunct German automaker begs to ...

A recent patent application has been published in the U.S., filed on August 12, 2015 detailing “a rotary piston engine mounted on a vehicle.” According to the patent’s abstract, the engine ...