Discussion on Stirling or "hot air" engines (all types)
Here are a couple of photos of the aluminum piston with cast iron rings. The diameter is 3".
- stirling piston2_resized_3.jpg (88.31 KiB) Viewed 1253 times
- stirling piston1_resized_3.jpg (79.37 KiB) Viewed 1253 times
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