Sunnytech®Hot Air Stirling Engine 4 Blue LED Education Toy Electricity Power Generator Fd03

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I've been collecting small steam engines and Stirling engines for over 20 years, mainly as a hobby. Like all of SunnyTech's model engines, this particular Stirling Engine is beautifully crafted and it features a furniture grade wooden platform.

Once you light the lamp (I use off-the-shelf 91% alcohol), the air in the piston heats up and pushes the piston out. A second piston pushes cold air back into the cylinder and the cycle repeats over and over. In this model, there's an additional pulley that connects from the flywheel to a high quality electrical generator that has 4 blue LED lights inside of it. What I like about this model is that the generator itself is made of clear plastic, so you not only see the engine work, but you see the inside of the generator.

http://goo.gl/fCehrR
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