47K views · 139 reactions | Check out the Atkinson cycle. Where the compression and combustion cycles have different stroke lengths in the bore. | EngineLabs | Facebook

The Atkinson-Cycle engine still has the same four strokes as an Otto-cycle engine, but uses mechanical linkage to have a different intake/compression stroke length than power/exhaust stroke length. Modern variations of the idea can be seen in production engines today. | EngineLabs