Superconducting rotating machine having cooler for rotator
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United States of America Patent
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Sep 23, 2014
Grant Date -
Jun 17, 2010
app pub date -
Nov 25, 2009
filing date -
Dec 16, 2008
priority date (Note) -
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Abstract
A superconducting rotating machine having a cooler for a rotator is provided. The superconducting rotating machine includes a rotator wound with a superconducting coil, a stator enclosing the rotator and separated therefrom by a predetermined gap, the cooler having a cold head directly attached to the rotator and at least one compressor connected with the cold head, and a flexible coupling disposed between the cold head and the compressor and enabling a cryogenic refrigerant to flow therein. The cold head is directly connected to the rotator, and the cold head and the compressor are driven using the flexible coupling, so that it is possible to prevent vibration of the compressor and enhance cooling efficiency by thermally separating the cryogenic cold head from the compressor.
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