CRYOCOOLER AND ROTARY VALVE MECHANISM
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United States of America Patent
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Issued Date -
Jun 29, 2017
app pub date -
Dec 15, 2016
filing date -
Dec 28, 2015
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Abstract
A rotary valve mechanism includes a stator valve member furnished with one of either a dome-shaped high-pressure recess area made of a polymer or a high-pressure flow path made of metal, and a rotor valve member furnished with the other of either the dome-shaped high-pressure recess area made of a polymer or the high-pressure flow path made of metal, and seals a high-pressure region being the high-pressure flow path communicated with the dome-shaped high-pressure recess area and is disposed adjoining the stator valve member such as to isolate the high-pressure region from its low-pressure surrounding environs.
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