Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1993-11-04
1995-09-05
Kilner, Christopher
Refrigeration
Storage of solidified or liquified gas
Including cryostat
62 6, 62 31, 148301, 165 4, F25B 910, H01F 1053
Patent
active
054470340
ABSTRACT:
A cryogenic refrigerator includes a first refrigerant filled in a final refrigerating force storage chamber on a high temperature side thereof and consisting essentially of a composition expressed by (a) (Er.sub.(x) R.sub.(1-x)).sub.3 Ni.sub.(y) Co.sub.(1-y), or (b) Er.sub.(x) R.sub.(1-x) Ni.sub.(y) Cu.sub.(1-y) wherein 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, and R denotes a rare earth element selected from the group consisting of Y, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Tm, Yb and Sc, a second refrigerant filled in the final refrigerating force storage chamber on a low temperature side thereof and consisting essentially of a composition expressed by (f) Er.sub.(x) R.sub.(1-x) Ni.sub.(y) Co.sub.(1-y), or (g) (Er.sub.(x) R.sub.(1-x)).sub.3 AlC.sub.(y) wherein 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1 and R represents a rare earth element selected from the group consisting of Y, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Tm, Yb and Sc, and a partition member for separating the second refrigerant from the first one so as to not be mixed in the refrigerating force storage chamber.
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Kuriyama Toru
Nakagome Hideki
Takahashi Akiko
Takahashi Masahiko
Tokai Yoichi
Kabushiki Kaisha Toshiba
Kilner Christopher
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