REFRIGERATING METHOD AND REFRIGERATING DEVICE WITH COMBINATOIN OF MAGNETIC REFRIGERATION AND REGENERATIVE GAS REFRIGERATION
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United States of America Patent
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Nov 21, 2013
app pub date -
Oct 24, 2011
filing date -
Dec 29, 2010
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Abstract
The present invention provides a refrigeration method combining magnetic refrigeration and gas-based regenerative refrigeration, the method comprises: replacing part of or all of regenerators (2) in a gas-based regenerative refrigerator with magnetic regenerators (2), wherein part of or all of fillers in the magnetic regenerators (2) are magnetic refrigeration materials to form magnetic regenerators (2) with the same operating temperature ranges as that of the corresponding regenerators in the gas-based regenerative refrigerator; disposing the magnetic regenerators (2) respectively in magnet assemblies (4) for generating controllable and periodically-changing field strength, and performing coupling control on working sequence of the gas-base regenerative regenerator and magnetic field changing sequence of the magnet assemblies to realize combination of magnetic refrigeration and gas-based regenerative refrigeration. And an apparatus combining magnetic refrigeration and gas-based regenerative refrigeration is also provided, which comprises: a pressure wave generator (1), m regenerators (2), m phase difference adjusting mechanism (3), j magnet assemblies (4) for generating controllable and changeable field strength and a coupling control system (5), wherein m is an integer between 1 and 5, and j<=m.
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