Until recently all Stirling engines had a piston and a displacer (which moved the air back and forth) or two pistons to move the air back and forth.

This engine only has one piston and no displacer. We aren’t quite sure why it works, but we are sure that some of the explanations you will read on the web are wrong.

This engine has been beautifully machined out of aluminum. It has precision bearings. It’s electrically heated with 110v. ac. 60 hz. It probably would work fine with a plug adapter on 220 v 50 hz, but a transformer is probably a good idea.

Right now this is a very limited edition, and are no longer for sale.

This is quite a large engine. It’s about 18 inches long. The cosmetics of this engine were designed by a top designer, and it was hand built by a Swiss machinist.

There is a lot of invisible quality in this engine. The heated glass cylinder is expensive quartz glass and the piston is precision machined graphite.

If you want a less expensive Stirling engine that is still beautiful, please look at our model MM-7