Stirlingengineforum.com

Hey folks, I'm new here...greetings!

I'm curious if it would work well to use small pneumatic actuator cylinders for a small Stirling engine model. Has anyone done this? Pneumatic actuator cylinders can be had quite cheap, and it would avoid quite a bit of tedious construction. Here's a link (for example):

https://www.surpluscenter.com/sort.asp? ... yword=ACDA

Any thoughts or has anyone built a small Stirling using these?

Cheers,
Dave

Cool...I took a look at airpot.com, but I don't see pricing listed...how expensive are the glass cylinder/graphite composite pistons just out of curiosity?

So, I suppose I could disassemble and simply take the O-rings out. In your experience, would that remove enough friction but still leave the right amount of seal?

Cheers,
Dave

Hi
Dont use pencil lead,I tryed.Its sticky.
Pencil lead is containing clay,not good for friction.
Use graphite powder or an lubricant containing graphite.
Use the same amount graphite as the epoxy-hardner.Very little!
Heres some of my specs.
http://stirlingengineforum.com/viewtopic.php?f=1&t=267
Jan

If you can get a 7H (or other high number- more than a 2H at any rate) pencil, that will contain much more graphite and less clay then an ordinary HB pencil. I don't think even 7H is pure graphite but it's probably much better than a regular pencil.