Stirlingengineforum.com

Does anyone know of good references on the web regarding free piston Stirling engines?

How does one determine the size of the bounce cavity and the mass of the displacer?

I am interested in a linear alternator so that the entire engine is encased and therefore the internal pressure can be high.

Thanks

I have a free piston motor with a linear alternator. My first attempt was a coaxial design but I had problems controlling thr stroke of he displacer, and it knocked thwe end out of the hot end, my second go was one with parallel cylinders, and that was a bit easier to control. The alternator consists of a magnet from the magnetron out of a microwave oven attached to the power piston. The coils are 4 little transformers, I removed the laminations, then replaced the Es only, all facing the same way(normally alternately placedwith the I on the open end). These are conected in series, and fed to a diode so that I get a DC current. On a good day it will power a 3V radio. Its not what your looking for, but it can be done, this one has springs, I imagine yours with gas springs rather than wire ones. Ian S C