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Stirling Engine with vertical cross walking beam

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Published on Dec 7, 2010

This is a custom designed Stirling Engine that I built and this is the first time running it. I am running it with a temporary flywheel made of a block of wood. I didn't have a proper flywheel and I got impatient and decided to run it. Although it is not balanced yet and runs much slower than it will with the right flywheel. It uses a latex diaphragm as a power piston and a unique vertical, cross walking beam designed by myself and my Dad. I made an engine prior to this one with the vertical walking beam but I did not utilize the cross over aspect. This design balances the weight of the engine better and gives a nice unique touch. It does not reverse the direction of the engine. Basic Stirling Engine theory clearly illustrates that running backwards is not possible. Although, in many cases the direction of the "flywheel" is reversed but the engine is always running the same direction. The power piston always follows the displacer 90 degrees out of phase(trailing). I used 4 needle bearings on the crank shaft and 2 needle bearings on the connecting rods. The crank shaft is made from coat hanger and the walking beam from an aluminum arrow shaft. The engine is made from tin soup cans and a tuna can.

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