Cryogenic refrigerator
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United States of America Patent
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Sep 12, 2017
Issued Date -
N/A
app pub date -
Mar 26, 2014
filing date -
Mar 28, 2013
priority date (Note) -
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Abstract
A cryogenic refrigerator includes a compressor which compresses a working gas, a housing which includes a space which the working gas compressed by the compressor flows into and flows from, a cylinder of which an end is connected to the housing and which includes an expansion space at the other end, and a displacer which permits flowing of the working gas into and from the expansion space via a working gas channel provided in an inner portion of the displacer while reciprocating in an inner portion of the cylinder. The working gas flows through a pipe which communicates with the space and the working gas channel.
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