Explore the history of two-stroke engines, from early adopters to their decline due to emissions regulations and advancing ...

Two-stroke? Forced induction? Compression-ignition-capable? That is many unexpected engine technologies combined into a single engine.

The end result was a two-stroke engine that produced up to 200 horsepower per liter, nearly double what was previously possible—the most powerful engine ever at the time.

This two-stroke design implements the same idea, aiming to run in compression-ignition mode for efficiency while switching over to spark ignition under higher engine loads.

Earlier papers by the principal author in conjunction with others have described the prediction of noise and performance characteristics of two-cycle spark-ignition crankcase compression engines.