CRYOGENIC REFRIGERATOR
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
Dec 11, 2014
filing date -
Dec 18, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a cryogenic refrigerator, a displacer includes a cover portion at a low temperature end of the displacer. A cylinder accommodates the displacer to be reciprocated in a longitudinal direction and forms an expansion space of a refrigerant gas between the cover portion and the cylinder. A refrigerant gas channel through which the displacer and the expansion space communicate with each other is formed in the cover portion. In the refrigerant gas channel, a flowing-out direction of the refrigerant gas flowing into the expansion space is inclined with respect to the longitudinal direction of the displacer.
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