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<r>HI Joe,<br/> Reply to your comments below.<br/> Geoff<br/> <br/> If you have anywhere close to a working engine with even close the power you say, it would be a miracle. I went over your new design, I sorta followed your equations, and I think the machine probably is not going to even turn over!<...

<r>Hi Joe,<br/> <br/> Would you have a look at this engine design. It uses molten lead and pistons have attached end of metal foam that is dipped in and out of the lead to heat the air. Calculations suggest it should get the heat into working gas OK.<br/> <br/> <URL url="http://www.spaceandmotion.co...

<t>HI Joe,<br/> <br/> Our discussions have caused me to re-think my design.<br/> <br/> It relates to your last comment, importance of both design / invention and simple for public to use / want.<br/> <br/> SO I was thinking how could you make a light weight conversion kit to change a petrol / diesel...

<r>Hi Joe,<br/> Comments below to your comments.<br/> Cheers, Geoff<br/> <br/> Yes, when I said heat exchanger, I did mean regenerator. The regenerator is one of the mysteries of the Stirling. So many practical people who build engines will swear you will never get one running without one. But yes, ...

<t>Hi Joe,<br/> <br/> Thanks for your comments - I have pasted them below with my replies.<br/> <br/> And yes, I love machines - they are logical - they represent physical reality and all the wonderful things we can do in this universe. So I see the Stirling engine as a lovely logical / engineering ...

<r>Hi William,<br/> <br/> Again, my sincere thanks for your time and patience in replying.<br/> <br/> I have pasted in your comments below and added my replies. I have also emailed you this with my phone number enclosed (and i can phone you).<br/> <br/> "Carbon steel will deteriorate at the combusti...

<t>Hi William,<br/> <br/> Thanks for your reply. I read the other post - but did not see anything there relating to my design - just that such a machine would be useful but no one has been able to build it yet.<br/> <br/> You wrote that i seem to have overlooked some of the required physics to make ...

<r>Hi Everyone,<br/> <br/> I am in the process of building a Stirling engine. I have built one<br/> before but it did not work - that is how I learn! Since then i have<br/> thought of hundreds of designs and now feel that I can build a<br/> relatively low cost Stirling engine using two petrol motors...