Why are strokes are so much shorter than Stirling's?

Discussion on Stirling or "hot air" engines (all types)
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GaryEng
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Joined: Thu Sep 23, 2021 11:28 am

Why are strokes are so much shorter than Stirling's?

Post by GaryEng »

The most noted units were 12 and 16 inch diameters with strokes of 24 and ~40 inches.

I assume the short strokes today are in the interest of RPMs, but there's a lot to be said for running more slowly.
MikeB
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Joined: Fri Jun 26, 2015 7:50 am
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Re: Why are strokes are so much shorter than Stirling's?

Post by MikeB »

Pretty much everything is inter-dependant: materials; temperature difference; power; speed

Those numbers don't look very different to what I would expect for modern power-producing machines - LTD models are at the opposite end of the spectrum due to that pesky "Low" in the name.
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