Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1994-08-10
1996-01-23
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
Including cryostat
622592, F25B 1900
Patent
active
054857309
ABSTRACT:
A cooling system for a superconductive magnet. A cryocooler coldhead and a compressor are remotely located from the magnet. A helium-gas conduit circuit has five helium-gas paths. The first path extends from the compressor's outlet port to being in proximate thermal contact with the coldhead's first stage. The second path extends from there to being in proximate thermal contact with the coldhead's second stage. The third path extends from there to being in proximate thermal contact with the magnet's superconductive coil. The fourth path extends from there to being in proximate thermal contact with the magnet's thermal shield. The fifth helium-gas path extends from there to the compressor's inlet port. By remotely siting the cryocooler coldhead away from the magnet and using helium gas for cooling, the vibrating coldhead will not affect the magnet and the helium-gas conduit circuit can have additional branches to cool additional magnets and can have rotatable couplings for cooling rotating superconductive rotors.
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patent: 4432216 (1984-02-01), Matsuda et al.
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patent: 5111665 (1992-05-01), Ackermann
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U.S. patent application Ser. No. 08/000,303, filed on Jan. 4, 1993, by E. T. Laskaris et al. "Cold Head Sleeve and High-Tc Superconducting Lead Assemblies for a Superconducting Magnet Which Images Human Limbs".
U.S. patent application Ser. No. 08/201,964, filed Feb. 24, 19934 by K. G. Herd et al. "Quench-Protected , Refrigerated Superconducting Magnet".
U.S. patent application Ser. No. 08/201,968, filed Feb. 25, 1994, by E. T. Herd et al. "Superconducting Magnet Having a Retractable Cryocooler Sleeve Assembly".
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U.S. patent application Docket No. RD-23729, filed on or about Aug. 3, 1994, by E. T. Laskaris et al., "Hybrid Cooling System for a Superconducting Magnet". (Serial No. not yet received).
Capossela Ronald C.
Erickson Douglas E.
General Electric Company
Webb II Paul R.
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