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Robert Stirling's demonstration model


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Old 07-05-2019, 03:49:04 PM
Brent Rowell Brent Rowell is offline
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Default Robert Stirling's demonstration model

Robert Stirling was the inventor of the engines named in his honor. Some of you know that he built a couple demonstration or teaching models around the time of or shortly after his first patent of 1816. Two of these models survive in Scotland. I recently refurbished a half-scale model of one of Stirling's originals now on exhibit at the National Museum of Scotland in Edinburgh. Note that these simple split cylinder or gamma type engines were not nearly as efficient or sophisticated as the single cylinder (beta) engine with regenerator (heat exchanger) that he patented in 1816. For more information on his original models, see
https://www.nms.ac.uk/explore-our-co...irling-engine/

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Old 07-06-2019, 10:36:00 AM
Tmox Tmox is offline
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Default Re: Robert Stirling's demonstration model

Very nice Brent, thanks!
Tim
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Old 07-19-2019, 06:56:18 PM
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Tom Jamboretz Tom Jamboretz is offline
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Default Re: Robert Stirling's demonstration model

I recently made a model of the engine. It looks very similar and runs quite well. It will be in Stationary Engine magazine in the near future.

TJ
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Old 07-20-2019, 09:40:36 AM
Brent Rowell Brent Rowell is offline
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Default Re: Robert Stirling's demonstration model

Tom,
Can you post some photos or a video of your model? Not many of us have access to Stationary Engine magazine. The one I rebuilt is not an exact replica of Stirling's which had a straight-spoked cast iron flywheel. It had to be dismantled completely before silver soldering the displacer and its cylinder which had been sealed with super glue! The crank and other parts were also incorrectly made.

For anyone wanting to make one of these models there is an excellent book by James Rizzo entitled "Robert Stirling's Models of the Air Engine" published by Camden Miniature Steam Services in 2009.
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Old 07-20-2019, 11:00:49 PM
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Default Re: Robert Stirling's demonstration model

Brent, I'll get some photos tomorrow. I also used the Rizzo book. It is an excellent source of information. Tom
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Old 07-21-2019, 01:07:19 PM
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Default Re: Robert Stirling's demonstration model

Photos of my Dr. Stirling engine.
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