Stirling motor

en.wikipedia.org/wiki/Stirling_engine

A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas (the working fluid) at different temperatures, such that ...

auto.howstuffworks.com/stirling-engine.htm

The Stirling engine is a heat engine that is vastly different from the internal- combustion engine in your car. Invented by Robert Stirling in 1816, the Stirling engine ...

www.animatedengines.com/vstirling.html

Animated illustration and description of the Alpha configuration Stirling engine.

Stirling Motor