Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1995-04-06
1996-05-07
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
Including cryostat
62 6, F25B 1900
Patent
active
055134980
ABSTRACT:
A cryogenic cooling system includes a cryocooler coldhead having a cold stage. A gas circulator has a low pressure input orifice and a high pressure output orifice, and a valve has a primary port and a secondary port. The valve makes and switches fluid connections between the valve's primary and secondary ports and the gas circulator's input and output orifices. A heat exchanger has a primary portion and a secondary portion each in thermal contact with the cold stage. The primary (secondary) regenerator is positioned between the primary (secondary) port of the valve and the primary (secondary) portion of the heat exchanger. A coolant flow path has a first end in fluid communication with the heat exchanger's primary portion and a second end in fluid communication with the heat exchanger's secondary portion. The coolant flow path may be placed in thermal contact with a superconductive device.
REFERENCES:
patent: 3882687 (1975-05-01), Asztalos
patent: 4277949 (1981-07-01), Longsworth
patent: 4432216 (1984-02-01), Matsuda et al.
patent: 4510771 (1985-04-01), Matsuda et al.
patent: 5103647 (1992-04-01), Ackermann
patent: 5363077 (1994-11-01), Herd et al.
Pending U.S. Patent Application Serial No. 08/288,178, filed Aug. 10, 1994, by K. G. Herd, entitled "Remote Cooling System For A Superconducting Magnet".
"Cryocoolers Part 2: Applications", Graham Walker, Plenum Press, New York, 1983 (pp. 30-41).
"Dynamically Balanced Gifford-McMahon Cold Head", by C. Minas and R. A. Ackermann, Proceedings of the 16th Annual Energy-Sources Technology Conference and Exhibition, ASME, New York, 1993 (pp. 11-16).
Ackermann Robert A.
Herd Kenneth G.
Capossela Ronald C.
Erickson Douglas E.
General Electric Company
Webb II Paul R.
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