Stirlingengineforum.com

Apologies for sounding like a jerk before, these things sometimes go to our heads. .... am working on a modular version, simple as pie, should be able to offer kit components for that modular set-up, will post videos of working items as we make them. Mr Stirling would turn in his grave, I don't want...

To answer your questions directly Ian, No, true and no. Yeah I done it before. One patents the idea, not a specific way of using the idea. For example it's not that my rotary combines the displacer with the backpressure vessel, it's the two lots of pumping that cannot occur at the same time that doe...

I have a provisional patent that gives me 1 year to lodge a final, with examination after that. Mine was the first provisional lodged in Australia this year :laugh: :laugh: :laugh: this is not my first patenting experience. It's going to take a lot of money. application number 2016900001 GATED HEAT ...

I probably said enough, but hey from the throw of you pin rotation, it looks like your machine has a very thick displacer, check what Ian used, I used a 5mm thick Styrofoam, some support, and tinfoil both sides. I hope that helped.

Ok I found your problem ....hehehehe ....... your piston requires a power stroke in it's current position, therefore you need your displacer in it's top position, exposing the working fluid to the lower hot plate. ffs you had me going for a while there dude

LOL Bumpkin

Thank you.

And by the way Bumpkin, I do know that you, Ian and 3/4 of the people on this site have greater heat motor experience than I, so kindly be patient with my explanations. In what you quoted above, I should have used the word respectively after the word sources, sorry for that.

Bumpkin thank you for the response, I can help/explain. First and foremost, the one way heat transfer of the Stirling is not altered in any way. the pumping actions are a separate methodology that does the following, and for this let us just consider the heat source quite rightly at one end and the ...

I trust you can see the thin walls between the working fluid and the hot and cold sources, that you understand the pumping technique to achieve this. So to all the believers in Stirling technology, this is our time.

Although I have no repeated my methodology on the cooling side, nor shown insulation on the inside of the vessel the displacer runs in, not shown quite a few things, I believe running at 4rpm, the above engine will easily covert exhaust gases into useable energy. This device is a bit out there, so I...

Ok I haven't shown my methodology on the cooling side only the heating side but this pic will show you my thinking

Also for pretty much the same dimensions (relative), my piston had half the diameter. I once made the mistake of using a piston displacement that was greater than the expansion, you may have done the same

also as you are running low pressure, you are correct, change the plates for 3mm.

I have built a similar machine that worked. I used a graphite piston, the shield snapped to one plate first then the other. I could help you make it work. my piston went thonk thonk thonk in and out, I had no flywheel.

Now I can sleep, design complete. Am ready to build. 2.45 am here