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Like the air-cooled engine, the rotary engine saw interest and production among big manufacturers peter out around the turn of the century. The Wankel survived until 2012, when Mazda killed the ...
Key to Porsche’s six-stroke engine is an eccentric crankshaft mechanism that changes the piston’s stroke, giving each cylinder two top and two bottom dead centers and three stroke lengths.
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Six Education: Inside Porsche's Six-Stroke-Engine Patent - MSNUnlike a four-stroke engine, which musters a single power stroke for every two revolutions of the crankshaft, Porsche's six-stroke affords two power strokes for every three turns of the crank.
You’re looking at one very clever piece of engineering. It’s an Adams-Farwell air-cooled, piston-driven, rotary engine—one of our 10 Most Unusual Engines of All Time. The crankshaft is fixed ...
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