Yes it should work the same way.Insainhouserecords wrote:Thank for the info, I was thinking maybe my displacer had too much loose room and was letting the air pass by without this cycle taking effect. I was thinking piston but I guess that why its called a displacer. I was going to even try a solid arm displacer but its more complex for sure. So, Are you saying that even with the "pipe on side" unit it should still work the same way? My PVC opening is 3/4in and when I apply heat on the bottom it does swell but when the displacer and everything is intact it only swells when I turn it over but the "swell" isn't as great of a "swell".
What plans are you using as your basis? Is it the scrap to power easy can engine?
But it looked in your pics like you were using two larger steel cans instead of aluminum beer cans?
If so, you can scale up the area of the end of the can from beer can to bean can, then scale up the area of the diaphragm by a similar amount, and the strokes by similar amount. Plenty of online calculators to calculate area of a circle and ratios of size etc.
But even then the original design used aluminium cans not steel. The thermal properties of the metal can make a big difference to things.
That is why it is best to take an established design and follow it exactly first time round.