Stirling Engine model Educational toy science physical Игрушки и хобби - купить

Купить Stirling Engine model Educational toy science physical | Игрушки и хобби

this  Stirling Engine  is a Free piston type,it need the alcohol(75%<=) as fule,most parts is make of metal ,the piston is made of quartz instead of ordinary glass,so it No need to worry about water .

this engine is Using the temperature difference of the air to complete the work cycle.....is a very good science physics toy...........

size：10cm*8cm

Usage method:Preheat for 1-2 minutes, then turn the flywheel with your hands, so that the machine can run.