helium disc Stirling engine

[jmerritt7]

a thought ocrrured to me way back when I had lots of time on my
hands to brainstorm.
I remembered the copper disk inside a chicken incubator and how it
was helium filled and would expand or contract and turn on or off
the light bulb and maintain a temperature in the incubator within a
1/2 degree range.
could such a disk also be used to in a Stirling engine since it
seems to move in and out a good deal with just a 1degree temperature
change
thanks guys

[stan.hornbaker]

We appreciate your post and thinking 'outside the box.' I'm at a loss at the moment to see how the thermstat principle could be applied to a Stirling engine.

Some Stirling engines have been hydrogen filled and pressurization has also been used to improve performance. All suggestions are read and given consideration whenever possible.

[piolenc]

There have been Stirling-cycle engines in which diaphragms or bellows have been used in place of pistons. The Harwell thermo-mechanical generator or Themodyne, developed in the late 60's and early 70's, is one example. Marc de Piolenc, Iligan City, Philippines