I've been busy using the CNC making a couple Stirling engines.
Engine #1 is not running yet. Need to get more experience on the subject and then get back on it, it's a more complicated engine and I am just learning.
Engine #2 runs on Sterno, just like a Hobo. It's a simple walking beam engine using tin cans for the displacer cylinder.
I needed to see Stirling #2 run badly after putting all that CNC time in one Stirling #1 and have it not running.
You can see more info, bigger photo's and a movie of Stirling #2 running on sterno here.
http://www.el34world.com/Misc/Cnc/CNC0.htm
Here's a link to a 640x480 windows movie of Sterling #2 running on Sterno
http://www.el34world.com/Misc/Stirling/ ... rling1.wmv
Stirling #1
Stirling #2
2nd Stirling actually works
I just finished cutting a few new aluminum parts for Stirling #2 on my CNC machine
I also added a coiled copper cooling system to keep the upper displacer cylinder cool.
I put a very small fountain pump in a bucket of water and then send water through the coil.
It runs way better than it did, it will run on a very small flame now.
Stirling page with more/bigger pics and info.
http://www.el34world.com/Misc/Stirling/stirling3.htm
New video clip showing new parts and Stirling running.
http://www.el34world.com/Misc/Stirling/ ... rling2.wmv
I also added a coiled copper cooling system to keep the upper displacer cylinder cool.
I put a very small fountain pump in a bucket of water and then send water through the coil.
It runs way better than it did, it will run on a very small flame now.
Stirling page with more/bigger pics and info.
http://www.el34world.com/Misc/Stirling/stirling3.htm
New video clip showing new parts and Stirling running.
http://www.el34world.com/Misc/Stirling/ ... rling2.wmv