Precision Stirling Engine (89mm)
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What is a Stirling engine and how do they work?
Stirling engines convert thermal energy into mechanical energy.
These Stirling engines take a temperature difference between the top and bottom plate and turn
it into rotational energy, rotating the flywheel. Simply placing a cup of warm coffee/tea underneath is
enough for it to work. It can even work from the heat of your hand! Its even possible to run it of something
cold provided the other plate has something warmer.
These Stirling engines
These wonderfully made Stirling engines are a joy to watch. They are smaller than the others we sell,
but actually run faster. The firm that has been making these for over 4 years now have clearly optimized
the performance over the years. Even the white pillars between the top and bottom plates are made from
Polyethylene Terephthalate rather than a metal in order to stop heat flowing directly through the pillars (
to keep the difference in temperatures between the top and bottom plate).
This new version has a new style of flywheel with spokes rather than a solid metal flywheel.
| Specifications |
| Height: | 5" (12.7 cm) |
| Diameter: | 3.5" (8.9 cm) |
| Weight: | 164 grams | |
| Bearings: | precision plain |
| Piston Material: | Graphite |
| Flywheel Material: | Polished bronze (formally brass) |
| Metal Parts: | Anodized Aluminum |
- All airtight seals are made with precision screw threads and O rings, NOT glue
- Each piston/cylinder set is a precision matched pair, machined to micron precision
- Ultra low friction bearings, NO lubrication required
- Precision engineered and hand built in England
Note: Now also available in kit form. Kit engines require a computer with CD-ROM drive to
view building instructions.
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 Download the manual
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(click on the images above to view movie)
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We ship worldwide
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Ideal for ages 12+ (recommended).
To compare by age group
click here
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