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Dear Michael, The ceramic, or graphite ring is a good solution for the heat separation. But you should to seal it perfectly with some temperature resistant seal ring or grease. The dead volume on the ends are too much. If you can reduce it, then use only 0,5-1 mm. The curved bottom help the displac...

I checked your CAD drawing in Solid Works. The file format not was perfectly translated but the engine's geometry was What I need to see on it. If your engine is perfectly same as like this CAD drawing then first, the dead volume is too big in it. The power stroke is not enough. Too much the gap be...

Hi, I'm new to this Forum! I build a bigger stirling motor but I'm not happy with the torque. Please see video here: http://www.youtube.com/watch?v=FJljYbmdd98&feature=youtu.be Actually I want produce power with this stirling engine and want a much better torque performance. I did design this en...