Cryogenic refrigerator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 25, 1985
Grant Date -
N/A
app pub date -
Apr 9, 1984
filing date -
Apr 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The cryogenic refrigerator includes a movable displacer within an enclosure having first and second chambers of variable volume. A refrigerant fluid is circulated in a fluid path between said chambers and correlated with movement of the displacer. A spool valve controls introduction of high pressure fluid and low pressure fluid to said chambers in a manner so that such flow is correlated with the pressure difference across said valve.
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Family
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Cited Art Landscape
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