Secondary pulse tubes and regenerators for coupling to room temperature phase shifters in multistage pulse tube cryocoolers
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United States of America Patent
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Feb 10, 2015
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app pub date -
Jan 24, 2011
filing date -
Jan 24, 2011
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Abstract
Pulse tube refrigeration or cooling systems are described which utilize a secondary regenerator or a secondary pulse tube. Use of such a secondary regenerator or pulse tube enables a commercially available pressure oscillator to be incorporated in the cooling system. The commercially available oscillator can be operated at room temperature or approximately so.
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