Morris Dovey wrote:
(in
) said:
...
I've had two "toy" sterlings - one was heated by a small alcohol
burner and the other used a small parabolic dish. Both engines had two
pistons separated by 90 degrees tied to a common crankshaft. They were
fascinating; but not particularly educational. As far as I was
concerned, they may as well have been PFM-powered.
You can't tell much by looking at the outside of the engine.
| Also many years ago a friend told me that the had seen a solar-
| powered Stirling engine powered water pump that had been
| designed for farm use--similar to the wind powered uints. It
| may have been a manufactured unit.
I wish I'd seen it!
Quite possibly a patent desclosure could be located at the US
Patent Office. I don't know if you can search century-old patents
online.
BTW, I found that places that sell aquarium supplies, like the major
Pet store chains, have very small inexpensive check valves.
Also, did you get my email?
--
FF