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    Magnetic refrigerator
    1.
    发明授权
    Magnetic refrigerator 失效
    磁力制冷机

    公开(公告)号：US5156003A

    公开(公告)日：1992-10-20

    申请号：US788100

    申请日：1991-11-05

    申请人： Saji Yoshiro ,  Hiroaki Toda ,  Tetsuo Takagi ,  Takao Sugioka ,  Masaru Inoue ,  Kohei Otani ,  Manabu Sato

    发明人： Saji Yoshiro ,  Hiroaki Toda ,  Tetsuo Takagi ,  Takao Sugioka ,  Masaru Inoue ,  Kohei Otani ,  Manabu Sato

    IPC分类号： F25B21/00

    CPC分类号： F25B21/00 ,  F25B2321/0021 ,  F25B2321/0023 ,  Y02B30/66 ,  Y10S505/891

    摘要： A magnetic refrigerator comprising a magnet generating a high-intensity magnetic field, a tube-shaped superconducting magnetic shield, a magnetic working material and a reciprocating means for reciprocatively moving the superconducting magnetic shield or the magnetic working material, the magnetic refrigerator being arranged such that a magnetization process wherein the magnetic working material is magnetized in the high-intensity magnetic field and a demagnetization process wherein the magnetic working material is demagnetized by being accommodated in the hollow section of the magnetic shield are repeated by the reciprocating means so that the magnetic working material generates coldness.By using the property of a tube-shaped superconductor which can shield the magnetism of an external magnetic field passing through the hollow section of the tube and can generate a zero-intensity magnetic field in the hollow section, the magnetic working material magnetized in the high-intensity magnetic field generated by the magnet is inserted into the hollow section of the tube-shaped superconducting shield and is demagnetized in an adiabatic condition to generate coldness. This coldness is used to cool the target cold bath.

    Static magnetic refrigerator
    2.
    发明授权
    Static magnetic refrigerator 失效
    静态制冷机

    公开(公告)号：US5209068A

    公开(公告)日：1993-05-11

    申请号：US819887

    申请日：1992-01-13

    申请人： Yoshiro Saji ,  Hiroaki Toda ,  Tetsuo Takagi ,  Takao Sugioka ,  Masaru Inoue ,  Kohei Otani ,  Manabu Sato

    发明人： Yoshiro Saji ,  Hiroaki Toda ,  Tetsuo Takagi ,  Takao Sugioka ,  Masaru Inoue ,  Kohei Otani ,  Manabu Sato

    IPC分类号： F25B21/00

    CPC分类号： F25B21/00 ,  F25B2321/0021 ,  F25B2321/0023 ,  Y02B30/66 ,  Y10S505/891

    摘要： A static magnetic refrigerator comprising a magnet generating a high-intensity magnetic field, a magnetic working material disposed in the high-intensity magnetic field, a magnetic shield disposed between the magnet and the magnetic working material, and a rotating means for rotating the magnetic shield, the magnetic shield comprising a pair of nearly parallel flat plates or a pair of outwardly curved plates facing each other and made of a superconductor, and the magnetic working material is accommodated in the inner space form by the pair of the flat or curved plates, whereby a magnetization process wherein the magnetic working material is magnetized in the high-intensity magnetic field by way of rotating the magnetic shield at a position allowing the permeation of the magnetic field through the magnetic working material via the pair of the flat or curved plates and a demagnetization process wherein the magnetic working material is demagnetized by way of further rotating the superconducting magnetic shield at another position permitting the shield of the magnetic field via the pair of the flat or curved plates are repeated by the rotating means so that the magnetic working material generates coldness.

    Magnetic field shield including a superconductive film
    4.
    发明授权
    Magnetic field shield including a superconductive film 失效
    磁场屏蔽包括超导膜

    公开(公告)号：US4920011A

    公开(公告)日：1990-04-24

    申请号：US260604

    申请日：1988-10-20

    申请人： Souichi Ogawa ,  Takao Sugioka ,  Masaru Inoue

    发明人： Souichi Ogawa ,  Takao Sugioka ,  Masaru Inoue

    IPC分类号： H01L39/00 ,  H01L39/24 ,  H05K9/00

    CPC分类号： H05K9/0077 ,  H01L39/2406 ,  Y10S428/93 ,  Y10T428/12361 ,  Y10T428/12576 ,  Y10T428/12819

    摘要： A magnetic field shield including a superconductive film characterized in that the magnetic field shield comprises a superconductive film layer constituted primarily of a mixed crystalline body of niobium nitride and titanium nitride laminated on a metal substrate, that the magnetic field further comprises a nobium-titanium alloy layer or a metal film layer in the above lamination, that the magnetic field comprises a plurality of the above-mentioned layers, and that the magnetic field has a plurality of small holes passing through the layers in the direction of the thickness. The magnetic field shield of the present invention produces an excellent magnetic field shielding effect due to a superconductive characteristic peculiar to the superconductive film layer constituted primarily by a mixed crystalline body of niobium nitride and titanium nitride. The cooling effect of the metal substrate maintains the magnetic field shielding effect at a high level. In addition, due to the use of the niobium-titanium alloy layer, the magnetic field shield has high resistance against peeling, greatly increasing the practical usefulness of the magnetic field shield. In the case of the magnetic field shield with a plurality of the laminated layers, the cooling effect of the metal film layers included in the multiple layers stably maintains the magnetic field shielding effect of the superconductive film layers. In the case of the magnetic field shield with small holes, the electromagnetic shielding and cooling effects of the holes are added to further strengthen the magnetic field shielding effect.

    摘要翻译： 一种包括超导膜的磁场屏蔽，其特征在于，磁场屏蔽包括主要由氮化铌和氮化钛的混合晶体构成的超导膜层，层叠在金属基板上，磁场还包括铌 - 钛合金 层或金属膜层，磁场包括多个上述层，并且磁场具有在厚度方向上穿过层的多个小孔。 由于主要由氮化铌和氮化钛的混晶构成的超导膜层特有的超导特性，本发明的磁场屏蔽产生优异的磁场屏蔽作用。 金属基板的冷却效果使磁场屏蔽效果保持在高水平。 另外，由于使用了铌钛合金层，所以磁场屏蔽具有高抗剥离性，大大提高了磁场屏蔽的实用性。 在具有多个层叠层的磁场屏蔽的情况下，包含在多层中的金属膜层的冷却效果稳定地保持超导膜层的磁场屏蔽效果。 在具有小孔的磁场屏蔽的情况下，添加孔的电磁屏蔽和冷却效果以进一步增强磁场屏蔽效果。