Stirlingengineforum.com

In an early post in this thread Geoff discussed experimenting with a pressurized version. It occurred to me that changing the pressure and composition of the working fluid in a Lamina would change the speed of sound and I would postulate that a working engine could stop resonating as the pressure wa...

Concerning the far end heating, does the tube double as the constrictor ring? Still looking for google images of such a critter.

Where could I find design info for cylinder diameter, resonance chamber length and diameter, and constriction ring sizing?

Thanks.
Dave

Your youtube video of the free piston lamina flow engine is awe inspiring, thank you. Forgive my ignorance, I scanned through the posts on this subject and I don't quite understand why you are heating the far end of a lamina flow engine. Everything I've read suggests it must be heated just at the ed...

This is a re-post as the original post was just prior to the site being hacked and doesn't seem to exist any more. See the animation below. Consider that as the air in the hot end heats up, the high pressure air forces in on the sealed displacement piston, and the flexible diaphragm will be forced t...

Can't be built as diaphragm version, the piston acts as one of the displacers. It's going to have to be pistons. Then I might not know if failure was because of design or piston friction / leakage. I'm thinking syringe plungers in brass tubing?
Dave

That's why I came to you guys, cause you know way more about stirlings than I ever will. I left the flywheel off the diagram for simplicity, perhaps that is leading to some confusion? This design seems trivially similar to the beta. Cool air is forced to the hot region when the piston collapses Hot ...

I am wondering if this is a new idea that allows one to tie the beta stirling displacer directly to the piston head, or if this concept has been done before: http://davesplanet.net/davesplanet/double-cooled-beta-stirling-engine/ If you are willing to have two hot spots or two cold spots then it seem...