Stirling engine with regenerator internal to the displacer piston and integral geometry for heat transfer and fluid flow
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United States of America Patent
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Jul 5, 2016
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N/A
app pub date -
Jul 24, 2013
filing date -
Jul 24, 2012
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Abstract
A Stirling engine with internal regenerator and integral geometry for heat transfer and fluid flow has a displacer piston with a plurality of cavities that traverse through the displacer piston and are arranged in a specific cross sectional geometry. A heater head has heater fin protrusions that are also arranged in the specific cross sectional geometry, and a cooling bridge has cooler fin protrusions that are also arranged in the specific cross sectional geometry. The displacer piston alternates between the heater head and the cooling bridge, with the cavities of the piston alternately enveloping the heater protrusions and the cooling protrusions, providing more efficient heat transfer to and from the working fluid. Each cavity in the displacer also contains a regenerator core, further improving heat transfer efficiency.
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