This is really the first time i see a Stirling engine with more than one cylinder. I posted other Stirling engines in the past, but then it just became so boring... Until now! This is a 6-cylinder engine with 3 shared power pistons positioned at 120 degrees on the crankshaft. The power pistons are made of PVC fittings, while the cylinders are made of stainless steel water bottles. The crankshaft is a 3/16'' steel rod equipped with 13 ball bearings. The engine has 1.5'' stroke for both displacers and pistons.
The engine runs very smooth and quiet! Excellent job!
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