Magnetic refrigeration device
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United States of America Patent
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Jul 3, 2012
Grant Date -
Mar 25, 2010
app pub date -
Sep 24, 2008
filing date -
Sep 24, 2008
priority date (Note) -
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Abstract
A magnetic refrigeration device for transferring heat including a shaft rotatable about an axis, an inner magnet disposed at one of the axis and a radial distance from the axis, an outer magnet disposed a radial distance from the axis outside of the inner magnet defining a magnetic gap between the inner and outer magnets, and magnetocaloric material disposed at a radial distance from the axis between the radial distances of the inner and outer magnets. The magnetocaloric material is coupled to the shaft for rotation with the shaft about the axis such that during rotation of the shaft a portion of the magnetocaloric material alternates between a magnetized position disposed within the magnetic gap and a demagnetized position outside of the magnetic gap.
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