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Böhm Stirling Motors
Page 4 of 10 
| HB10:
'Deluxe Flyer' |
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The principle of Stirling Motors is both very old and very simple. Invented
by Robert Stirling in Scotland in 1816 the motors work on very basic concepts
of physics that describe how hot air expands, and has a higher pressure, than
cooler air. The air on one side of the displacer piston is heated by an outside
source, causing an increase in pressure. The increased pressure pushes the
piston to the other side of the chamber, where the air remains cool. Then
that chamber heats, and the process repeats. There are usually two pistons,
at 90° to each other that can be connected to a crankshaft to move a vehicle
or a generator to make electricity. Stirling Motors are very efficient, quiet
and, because they are a closed-system with no explosives and no steam, safe.
These beautiful working models are precision engineered and available both
in kit form or as ready built items. The quality of the components means assembly
is straightforward, resulting in a stunning model which, when fired up, will
amaze any observer.
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