REFRIGERATOR
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United States of America Patent
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Issued Date -
Feb 5, 2015
app pub date -
Jul 31, 2014
filing date -
Aug 1, 2013
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Abstract
A pulse tube refrigerator has a pulse tube having a first end and a second end. A inertance tube connects the first end and a buffer tank. A pressure change generator is connected with the second end. The pressure change generator generates a pressure change of a working gas at the second end periodically. A first flow straightener provided at the first end. A second flow straightener provided at the second end. A degree to which the first flow straightener hinders the flow of the working gas is greater than a degree to which the second flow straightener hinders the flow of the working gas.
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