Stirlingengineforum.com

Standard gamma setup . the flywheel is horizontal right above the cylinder. visualize a can with a fat cd just above it. The flywheel is similar to two roller coasters with different diameters. The very small inner track is the guide for the displacer con rod to connected to. The larger track is connected to the power piston. The con rods are held between two tracks by roller bearings. The engine could be very compact ,even taking up less space than a ross yoke configuration.

Sounds ok, you'v just got to watch that the cam operating the displacer does not introduce excessive friction, careful design, and workmanship should overcome that. With the crankshaft vertical, it will need thrust bearings to counter the weight of the flywheel, cam and any other bits and pieces you hang on it. This bearing could consist of a single ball from an old bearing race, a small centre hole in the end of the shaft, and a small dent in a metal plate attached to the motor base under the crankshaft to take the weight with minimum friction. I'v got some proper bearings for that, the came from aircraft instrument gyros, the fixed part has 3 tiny balls, the moving part is a hardened steel point about 20*. Ian S C

Ian SC
Can the con rod to the displacer be a little off center, since its fixed and wouldnt move side to side? This would give the con rod attached bearing wheels a little bigger track to move in.

Why not, as long as the displacer moves freely, and follows the right track. Ian S C