This difference in mechanics gives the Wankel engine its ... it seals the combustion chamber at different points, creating a constantly changing volume. The process starts with the ...

In simplest terms, a rotary engine has a three-sided rotor spinning inside a housing that starts the combustion process ...

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 rotary engine uses the same principles as an internal combustion engine with the Otto system. That means there are four strokes: admission – compression – ignition – evacuation.

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 ...

Apex seals in a Wankel rotary engine perform a similar function as piston rings in internal combustion piston engines. However, the weak link of the Wankel engine could lie with the apex seal.

From the December 1969 issue of HOT ROD: After talking about Wankel engines for years, foreign automobile manufacturers started producing the revolutionary powerplants—and they really worked.