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公开(公告)号：US5379600A
公开(公告)日：1995-01-10
申请号：US37455
申请日：1993-03-26
申请人： Kazuki Moritsu , Takahiro Matsumoto , Mitsuo Horikawa , Shuichi Nakagawa , Hideto Yoshimura , Masashi Nagao , Takashi Inaguchi
发明人： Kazuki Moritsu , Takahiro Matsumoto , Mitsuo Horikawa , Shuichi Nakagawa , Hideto Yoshimura , Masashi Nagao , Takashi Inaguchi
IPC分类号： F25D3/10 , F17C3/08 , F17C13/00 , F25B9/00 , F25B9/14 , F25D19/00 , H01F6/00 , H01F6/04 , H01F41/02 , H01L39/04 , F17C5/02
CPC分类号： F17C3/085 , F25B9/14 , F25D19/006 , H01F6/04 , F17C2203/0687 , F17C2221/014 , F17C2221/017 , F17C2270/0509 , Y10S505/892
摘要： A superconducting magnet which is capable of improving the refrigerating and the assembling characteristics and of composing in small size. A helium vessel 2 contains a cylindrical superconducting coil for cryogenically refrigerating it by liquid helium. A second and a first heat-shields 5 and 6 and a vacuum vessel 4 are coaxially provided so as to surround the helium vessel 2. Over the helium vessel 2, a L-letter shaped duct 50 is provided to be exposed to helium gas atmosphere being evaporated in the helium vessel 2. A refrigerator-mounting cylinder 51 has an end coupled to the L-letter shaped duct 50 through the bellows 52 and is mounted on an end surface of the vacuum vessel 4 substantially in parallel to the axial direction of the superconducting coil. A three-stage cold heat accumulation refrigerator 30 is inserted into and fixed to the refrigerator-mounting cylinder 51 for reliquefying the helium gas having been drawn into the L-letter shaped duct 50 by a third heat state 43.
摘要翻译： 一种能够改善制冷和组装特性并组装成小尺寸的超导磁体。 氦容器2包含用于通过液氦低温冷冻的圆柱形超导线圈。 第二和第一热屏蔽5和6以及真空容器4同轴地设置成围绕氦容器2.在氦容器2上方设置有L字形的管道50以暴露于氦气气氛 在氦容器2中蒸发。冰箱安装缸51具有通过波纹管52连接到L字形管道50的端部，并且基本上平行于真空容器4的端面安装在真空容器4的端面上 超导线圈。 将三级冷热蓄积式冷冻机30插入并固定于冰箱安装缸51，将第三加热状态43中已被拉入L字形管50的氦气重新融化。
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公开(公告)号：US5583472A
公开(公告)日：1996-12-10
申请号：US387366
申请日：1995-02-13
申请人： Kazuki Moritsu , Takahiro Matsumoto , Shuichi Nakagawa , Shuji Ando , Mitsuhiro Kishida , Hideto Yoshimura , Masashi Nagao , Takashi Inaguchi
发明人： Kazuki Moritsu , Takahiro Matsumoto , Shuichi Nakagawa , Shuji Ando , Mitsuhiro Kishida , Hideto Yoshimura , Masashi Nagao , Takashi Inaguchi
CPC分类号： F25D19/006 , F25B9/14 , H01F6/04 , F25B2500/11
摘要： An object of the present invention is to obtain a superconductive magnet, the size of which can be reduced by shortening the radial length of a magnetic device thereof and the refrigerating performance of which can be improved. A cylinder for fastening a refrigerator has an end facing an ambience of helium gas evaporating in a helium chamber and another end which is substantially horizontally fastened to a vacuum chamber. Further, the three-stage regenerative refrigerator is inserted and fastened to the cylinder for fastening the refrigerator. A heat insulator, such as a convection prevention tube, made of a hollow Teflon tube is wound around the outer surface of each stage of the cylinder of the three-stage regenerative refrigerator. The convection prevention tube is enclosed into a gap between the cylinder for fastening the refrigerator and the three-stage regenerative refrigerator without no undesirable gap so that heat convection of the helium gas is prevented.
摘要翻译： 本发明的目的是获得一种超导磁体，通过缩短其磁性装置的径向长度可以缩小其尺寸，并且可以提高其制冷性能。 用于紧固冰箱的气缸具有面向在氦室中蒸发的氦气的气氛的端部和基本上水平地紧固到真空室的另一端。 此外，将三级再生式冰箱插入并紧固到用于紧固冰箱的气缸。 在三级再生式冰箱的气缸的各级的外表面上缠绕由中空的特氟隆管制成的防热管等防热管。 对流防止管被封闭在用于紧固冰箱和三级再生式冰箱之间的气缸之间的间隙中，而没有不期望的间隙，从而防止了氦气的热对流。
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公开(公告)号：US5398512A
公开(公告)日：1995-03-21
申请号：US118717
申请日：1993-09-10
申请人： Takashi Inaguchi , Masashi Nagao , Hideto Yoshimura , Mitsuhiro Kishida , Kazuki Moritsu , Takahiro Matsumoto , Shuuichi Nakagawa , Shuji Ando
发明人： Takashi Inaguchi , Masashi Nagao , Hideto Yoshimura , Mitsuhiro Kishida , Kazuki Moritsu , Takahiro Matsumoto , Shuuichi Nakagawa , Shuji Ando
CPC分类号： F25B9/14 , F25B2309/003
摘要： A cold accumulation type refrigerating machine having a high refrigeration efficiency. Rotation output of a stepping motor is converted to a reciprocative motion of a displacement member carrying a cold accumulator and disposed within a cylinder in which first and second closed chambers are defined above and below the displacement member, respectively. A compressed gas discharged from a compressor is introduced into the second closed chamber through the cold accumulator upon opening of a suction valve and undergoes expansion within the second closed chamber, the gas being then fed back to the compressor through the cold accumulator upon opening of an discharge valve, whereupon one cycle of refrigerating operation is completed. Rotation speed of the stepping motor is varied during every one cycle of operation by means of a pulse oscillation controller such that a time taken for the displacement member to reach a top dead center position from a time point at which the discharge valve is opened is increased while the remaining period of the one cycle is correspondingly shortened.
摘要翻译： 一种制冷效率高的冷堆式制冷机。 步进电动机的旋转输出被转换成承载冷蓄库器的位移构件的往复运动，并且设置在气缸内，第一和第二闭合腔分别位于位移构件的上方和下方。 从压缩机排出的压缩气体在打开吸入阀时通过冷蓄积器被引入第二闭合室，并且在第二封闭室内经历膨胀，然后气体在开启时通过冷蓄积器反馈回压缩机 排出阀，从而完成一个循环的制冷操作。 步进电动机的转速通过脉冲振荡控制器在每一个操作循环期间变化，使得从排出阀打开的时间点起到位移构件到达上死点位置所花费的时间增加 而一个周期的剩余时间相应缩短。
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公开(公告)号：US5398511A
公开(公告)日：1995-03-21
申请号：US19580
申请日：1993-02-18
申请人： Takashi Inaguchi , Masashi Nagao , Hideto Yoshimura , Kazuki Moritsu , Takahiro Matsumoto , Shuuichi Nakagawa
发明人： Takashi Inaguchi , Masashi Nagao , Hideto Yoshimura , Kazuki Moritsu , Takahiro Matsumoto , Shuuichi Nakagawa
CPC分类号： F25B9/14 , F25B2309/003
摘要： According to the present invention there is provided a regenerative refrigerator wherein a gas discharged from a compressor is introduced through a regenerator into a closed chamber whose internal volume changes with movement of a movable member, the movable member being disposed within a cylinder through a predetermined gap between its outer peripheral surface and the inner peripheral surface of the cylinder, and is allowed to expand therein, then is discharged again through the same route. In this regenerative refrigerator, the size, d, of the said gap is set in the range of 1/1000.ltoreq.d/D.ltoreq.1/100 relative to the inside diameter, D, of the cylinders or a gas convection preventing member is disposed in the said gap, or seals which are in contact with the inner peripheral surface of the cylinder are provided on the outer peripheral surfaces of both end portions of the movable member.
摘要翻译： 根据本发明，提供了一种再生冷冻机，其中从压缩机排出的气体通过再生器被引入密封室，其内部容积随着可移动部件的移动而变化，可动件通过预定间隙设置在气缸内 在其外周面和圆筒的内周面之间，允许其在其中膨胀，然后通过相同的路线再次排出。 在这种再生式冰箱中，所述间隙的尺寸d相对于气缸的内径D或气体对流设定在1/1000
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公开(公告)号：US5365743A
公开(公告)日：1994-11-22
申请号：US147559
申请日：1993-11-05
摘要： In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.
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公开(公告)号：US5207981A
公开(公告)日：1993-05-04
申请号：US766769
申请日：1991-09-27
申请人： Yasuhiro Hanaue , Etsuji Kimua , Takuo Takeshita , Kouichi Ishiyama , Masashi Nagao , Takashi Inaguchi , Hideto Yoshimura
发明人： Yasuhiro Hanaue , Etsuji Kimua , Takuo Takeshita , Kouichi Ishiyama , Masashi Nagao , Takashi Inaguchi , Hideto Yoshimura
CPC分类号： H01F1/012 , F25B2309/003
摘要： The present invention provides heat reserving materials comprising alloys of Ru and at least one rare earth metal which are represented by the formula (I):(A.sub.1-x B.sub.x).sub.z Ru.sub.1-y C.sub.ywherein A represents one or two or more of Er, Ho and Dy; B represents one or two or more of the other rare earth metals; C represents one or two or more of Co, Ni, Al, Cu, Pd, Rh, Au, Ag, Cr, Mn, V and B; x is not less than 0 and not more than 0.5; y is not less than 0 and less than 1.0; and z is more than 1.1 and less than 5.0.When the heat reserving materials of the present invention are used in a cryogenic refrigerator, very low temperatures of not higher than 10 K. can be achieved. Specific heat properties of the materials can be varied as desired by adjusting the content ratio of the plural phases each of which has a different magnetic transition temperature.
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7.发明授权
公开(公告)号：US5154063A
公开(公告)日：1992-10-13
申请号：US722547
申请日：1991-06-26
摘要： In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.
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公开(公告)号：US5144805A
公开(公告)日：1992-09-08
申请号：US721816
申请日：1991-06-26
CPC分类号： F25J1/0276 , F25B9/14 , F25J2290/42
摘要： In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.
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公开(公告)号：US5447033A
公开(公告)日：1995-09-05
申请号：US294758
申请日：1994-08-23
摘要： In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.
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10.发明授权
公开(公告)号：US5293752A
公开(公告)日：1994-03-15
申请号：US891160
申请日：1992-05-29
摘要： In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.
摘要翻译： 在包括常压设置的压缩机的多级冷堆式制冷机中，作为被压缩机压缩的常用工作流体的氦气以及不同温度的一个以上的膨胀室和蓄冷器， 蓄冷器的蓄冷构件由含有稀土金属的合金或化合物形成，从而能够提高冰箱的效率。 此外，由于密封件的滑动阻力而产生的发热量设定为比在膨胀室中等温膨胀的假设下要获得的理论产生的制冷量小，从而可以提高制冷量。 冰箱应用于冷却超导磁体，SQUID，超导计算机，红外望远镜等的冷却装置。
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