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the track idea sounds great but how do you make it work without friction... router in a piece of wood? Would a roller (bearing) at the top and bottom of the cam work? I was planning on a slower but more powerful engine geared to a higher speed fan. I have also toyed with the idea of a water pump tha...

that is exactly what I am talking about. I have toyed with the idea of a roller on the bottom with a counterweight to keep the displacer in contact with the cam OR a sort of hooK going around the cam and rolling on top of it and let the weight of the displacer work the downstroke and the cam would p...

I am currently building an engine with a cam on the crankshaft that works the displacer. It is similar to the way a cam works a valve in a internal combustion engine. The way I plan to raise the displacer to stay in contact with the cam is with a counterweight. The cam I have designed resembles a tr...

I am building an engine similar to this one http://www.quirkyengines.com/html/build_it.html and I found a piston and cylinder that seal perfectly out of some old air tool. The piston is 2cm across and about 2cm high and solid steel (pretty heavy). I can drill out the center and cut the weight by 1/2...

I am new to the forum and stirling engines in general (just saw the first one on wednesday). I have seen the heater or wood stove fans that sit on the hot surface and run advertised for around $300. I would like to build something similar to this. My surface temp is around 250 degrees F (I guess sin...