Stirlingengineforum.com

Ian,

Thanks for the advice.

Jon

Hi all, I have built a double-acting pressurized gamma engine, with the intent to produce up to approx 1 hp. To date the most I have attained is about .2 hp at about 800 deg. F on the hot end and with water jacket on the cool side. The engine runs at 200-250 RPM no load at atmoshperic pressure. As I...

Ian,

Thanks for the advise. I'll probably have more questions later.

Thanks again,

Jon

Hi all, In determining the length of displacer and displacer cylinder in a high temp gamma engine, I have often seen that the hot end should be 2/3 the length of the cylinder and the cooling area 1/3 the length of cylinder. Also that the displacer length should be 2 times the diameter. This seems so...

Thanks for the good thoughts.

Jon

What is your opinion of a displacer for a gamma engine constructed from aluminum discs .042" thick x 3" dia with spacer washers of about .010" thickness between each. The discs would have some holes in them for air flow. These would be assembled on a rod connected to the displacer lin...

Hi all,

new guy here.

Jon James

Hi all, I am working on a hi temp Gamma stirling engine. Would it make sense to make the displacer from copper pipe with copper end caps to achieve the regenerative effect? I would probably knurl the surface or wrap a few layers of copper screen for greater surface area. What are your thoughts? Than...

Hi,

I am new here.

Thanks,

Jon James