The idea
I made this high temperature Stirling as a birthday present for my youngest son Bas and his wife Hanneke in 2003. They have displayed it on their walnut wall cabinet on what they demonstrate it to amazed looking friends.


Design

In fact this engine was more ore less copy from the "Hor Stirling Jan" that I made for myself earlier, so for the description I can refer to the concerning page for that engine.
Except for some rough sketches I didn't make any useful drawing plans for this engine in 2003. Because I got requests for a drawing plan all the time I recently (February 2010) made a CAD plan, from what the first 2 sheets from 9 are copied here below. On this occasion I upgraded the design with respect to several cosmetic aspects and I replaced the brass power cylinder by a glass one. So now this engine has a glass hot cylinder, displacer and a glass power cylinder. The result is a very clear and inside view on all engine movements with what the typical Stirling process is demonstrated nicely.
The glass cylinders and displacer are cut from standard pyrex glass test tubes that are heat resistant. Apart from the fact you can look through the glass it has the advantage of a very low heat conductance. That means that the glass temperature some 2 to 3 cm from the very hot spot of the candle flame keeps low; hardly higher than room temperature. That makes it possible to fix the hot cylinder simple with a rubber O-ring in the flange, mechanically and air-tight at the same time. For the same reason there is hardly any heat conductance to the aluminum cold cylinder which is important for Stirling engines.
This engine is running reliable, noiseless and oudorless as long as there is a flame on the little tea light. Depending on the adjustable height of the tea light the revolution speed of this engine will be anywhere between 100 and 600 rpm.


Drawing plan
Below sheet 1 and 2 from the drawing plan that is free available; click on one of these pictures fo a request.




 



Very nice CAD animation of
Kevin Berera:


Video's Kevin Berera:


Mati Raudsepp

Nice replica by Hans Vingerhoets

Beautiful replica made by
Chris Thorn:

 

 

Very beautiful replica
made by
Robin Butcher: