What Killed The Rotary Engine?

What killed the rotary engine? Wankel engines have struggled to compete with piston cylinder engines, despite their many benefits and overall simplicity. Rotary engines have a long, growing combustion chamber as the rotor spins, making complete combustion difficult - not great for fuel economy. They’re also difficult to seal, and since you have multiple chambers at different stages of combustion, proper seals between chambers is critical. To help promote a good seal, oil is sprayed directly into the combustion chamber. All of this results in an inefficient engine with terrible emissions. You might think that because all of these negative factors exist, it's done for good, but Mazda actually brought back the rotary engine in the MX-30, acting as a single-rotor range extender!

What Killed The Rotary Engine (Full Version) - https://youtu.be/v3uGJGzUYCI
Mazda's New Rotary Engine - https://youtu.be/-3gzQVGEqF4

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Видео What Killed The Rotary Engine? канала Engineering Explained