Stirling cycle engine or heat pump with improved heat exchanger
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United States of America Patent
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Feb 21, 2006
Grant Date -
Dec 8, 2005
app pub date -
Jul 20, 2005
filing date -
Jun 2, 2004
priority date (Note) -
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Abstract
A Stirling cycle machine heat exchanger and a method for making the heat exchanger including, forming an annular ring of a solid heat conductive mass, the annular ring having a central axis and having axially opposite faces. A plurality of passages are drilled through the annular ring and through the opposite faces to provide passages for the flow of a fluid through the passages and transfer of heat energy between the mass and the fluid. The passages are preferably parallel to the axis and have a circular cross section and are arranged in a plurality of circumferentially spaced sets of passages, each set having a plurality of radially spaced passages.
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