Porsche's 6-Stroke Engine Is Fascinating – More Power!
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Porsche patented a 6-stroke engine, yes, two more strokes than you’d commonly see for a combustion engine, and most excitingly, one of those additional strokes is a power-stroke! We now have two power strokes per cylinder within the full six-stroke cycle. The way it works is through Porsche’s genius hypocycloidal design which the crankshaft follows. This creates two different stopping heights for the piston at both the top, and the bottom of the cylinder. The first three strokes you’ve seen before, intake, compression, power, but at the end of our third stroke, the first power stroke, the piston drops a little bit further down, exposing air intake ports, filling the cylinder with fresh air. This is of course compressed on the next stroke, along with fuel, leading to the second power stroke, and finally ending with the exhaust stroke, before the cycle repeats. The advantage is greater power density, since you know have more frequent power strokes. The downside is, it’s just a patent, so
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