Bassa temperatura del motore stirling, grande giocattolo educativo,UK Royal Mail

This good-looking Low Temperature Stirling Engine could be a great gift for your friends or families or yourself. It is almost ready to run: you will only have to install the flywheel. After 30 seconds of installation, put it on a cup of hot water, then it will run like Forrest Gump.

You should use pencil to lubricate it, to lubricate all the connections. Use brush to clean the inner side of the outer cylinder. Once in good condition, this one can run on hand. But this is not guaranteed and depends.

A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work.The engine is like a steam engine in that all of the engine's heat flows in and out through the engine wall.

This is traditionally known as an external combustion engine in contrast to an internal combustion engine where the heat input is by combustion of a fuel within the body of the working fluid. Unlike the steam engine's use of water in both its liquid and gaseous phases as the working fluid, the Stirling engine encloses a fixed quantity of permanently gaseous fluid such as air or helium. As in all heat engines, the general cycle consists of compressing cool gas, heating the gas, expanding the hot gas, and finally cooling the gas before repeating the cycle.