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 ...

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.

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 ...

Wankel rotary engines, ... An apex seal is a physical plate that goes on the tips of the triangle, which segregates each step of the combustion process from one another by providing a vacuum seal.

So take everything you know about the Wankel and turn it literally inside out. Moreover, Shkolnik says the company solved the age-old, meme-worthy problem surrounding the rotary engine: its apex ...

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.