Description
A vacuum engine runs by air pressure against one side of the piston, which has a partial vacuum the opposite side. When the chamber is heated the air expands and pushes the cylinder out. When it is cooled by the air it contracts, using the vacuum pressure it pulls the piston which opens the valve and restarts the process.
Vacuum engines are often referred to as 'Flame-Licker Engines" or "Flame Eaters"
Ships from CA via USPS with a fixed shipping cost of $10.
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