What is the sound of one piston slapping?
What is the sound of one piston slapping?


This seems like an interesting concept. The cylinder themselves rotates and the exhaust and intake ports therefore don't need valves.

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Illustration for article titled The Duke engine - 5 cylinders, no valves, 3 injectors.

They say their engine is way more compact, lighter, can sustain higher compression ratios, and one of their 5 cylinder engine can match a current 6 cylinder

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The engine is articulated around one reciprocator that allows all five pistons to work together:

Illustration for article titled The Duke engine - 5 cylinders, no valves, 3 injectors.
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What do you think, vaporware or potentially good idea?

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