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Dave Petersen, Tucson, AZ.    (          3/20/2011

This 2 cyl. Stirling engine features water cooling and also intersecting linkages characteristic of the Robinson Patent engines from the 1880's thou my engine is not of that design. An electric motor from a VCR is driven to provide power to 4 red LED lamps. The cooling system is made up of about 40 individual pieces. Copper/aluminum water jackets surround the 20 mm Pyrex cylinders, however no coolent is needed in operation. As a liquid cooled custom design twin incorporating a generator, this project from the winter of 2008 remains the most elaborate of my hot air engines.  Thanks, Dave Petersen, Tucson Arizona, (


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