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8 条记录 (耗时 0.02 秒)

    Power lead for superconductive magnet
    1.
    发明授权
    Power lead for superconductive magnet 有权

    公开(公告)号：US06657526B2

    公开(公告)日：2003-12-02

    申请号：US10028993

    申请日：2001-12-21

    申请人： Ken Nagashima ,  Masaru Tomita ,  Kaoru Nemoto ,  Toshiki Herai ,  Masato Murakami

    发明人： Ken Nagashima ,  Masaru Tomita ,  Kaoru Nemoto ,  Toshiki Herai ,  Masato Murakami

    IPC分类号： H01F600

    CPC分类号： H01L39/143 ,  H01R4/68 ,  Y10S505/706 ,  Y10S505/879

    摘要： There is provided a power lead for a superconductive magnet capable of controlling the invasion of heat to liquid helium for storing superconductive coils therein and of sufficiently feeding power to the superconductive coils. The power lead for a superconductive magnet of a superconductor magneto unit for supplying a current to the superconductive coils which are cooled at a liquid helium temperature through a radiant heat shielded section which is cooled at a liquid nitrogen temperature, wherein at least a part of sections positioned inside the radiant heat shielded section of a current lead member of the superconductive magnet comprises a high temperature oxide superconductor bulk body having a critical temperature exceeding a liquid nitrogen temperature. In this case, it is preferable to apply a resin impregnation treatment to the bulk body to enforce the high temperature oxide superconductor bulk body section. If at least a part of sections other than the bulk body is formed of a braided wire, a stress caused by the relative displacement between constituents of the unit does not influence upon the bulk body, thereby reducing the risk of breakage of the unit.

    Cooling system
    2.
    发明授权
    Cooling system 失效
    冷却系统

    公开(公告)号：US5575155A

    公开(公告)日：1996-11-19

    申请号：US516364

    申请日：1995-08-17

    申请人： Hideo Mita ,  Katsunobu Kanda ,  Hideo Misawa ,  Toshiki Herai ,  Ken Nagashima

    发明人： Hideo Mita ,  Katsunobu Kanda ,  Hideo Misawa ,  Toshiki Herai ,  Ken Nagashima

    IPC分类号： F25B9/00 ,  F25B9/10 ,  F25B9/14

    CPC分类号： F25B9/14 ,  F25B9/10

    摘要： A cooling system includes a cold-accumulating refrigerator, and a cooling circuit. The cold-accumulating refrigerator includes a regenerator. The cooling circuit includes a main circuit, and a branched circuit. The main circuit includes a counterflow heat exchanger. The branched circuit is branched from an upstream portion of the main circuit, and joined to a downstream portion thereof, thereby reducing one of the flows of a refrigerant, flowing in a high-pressure-side passage and a low-pressure-side passage which are disposed in the counterflow heat exchanger, with respect to the other one of the flows. Moreover, the branched circuit includes a heat exchanger, and the heat exchanger is thermally brought into contact with a portion of the regenerator whose temperature is varied from a high temperature to a low temperature by another refrigerant flowing therein. Thus, the cooling efficiency of the cooling system is remarkably improved synergetically by the cooling resulting from the flow-difference in the counterflow heat exchanger, and by the extra cooling stemming from the thermal-contact at the regenerator.

    摘要翻译： 冷却系统包括冷藏式冷藏库和冷却回路。 蓄冷式冷冻机包括再生器。 冷却回路包括主电路和分支电路。 主回路包括逆流热交换器。 分支电路从主电路的上游部分分支，并与其下游部分接合，从而减少在高压侧通道和低压侧通路中流动的制冷剂流中的一个， 相对于另一个流量设置在逆流热交换器中。 此外，分支回路包括热交换器，并且热交换器与另一制冷剂在其中流动的温度从高温到低温的一部分再生器热接触。 因此，通过由逆流热交换器的流量差引起的冷却以及来自再生器的热接触的额外的冷却，协同地降低了冷却系统的冷却效率。

    Superconductive composite materials
    4.
    发明授权
    Superconductive composite materials 失效
    超导复合材料

    公开(公告)号：US5920246A

    公开(公告)日：1999-07-06

    申请号：US825700

    申请日：1997-03-19

    申请人： Ken Nagashima ,  Naomichi Sakai ,  Sang-Im Yoo ,  Hiroyuki Fujimoto ,  Masato Murakami

    发明人： Ken Nagashima ,  Naomichi Sakai ,  Sang-Im Yoo ,  Hiroyuki Fujimoto ,  Masato Murakami

    IPC分类号： C01G1/00 ,  C01G3/00 ,  H01B12/00 ,  H01B13/00 ,  H01L39/00 ,  H01L39/14 ,  H01F1/00

    CPC分类号： H01L39/143 ,  Y10S505/776

    摘要： A composite material having a plurality of sections integrated into a unitary structure and each including a bulk of a superconductive metal oxide of RE--Ba--Cu--O wherein RE represents a rare earth element, the bulk of each of the sections having pinning centers and capable of trapping a magnetic field. A first one of the sections has a superconductive current density different from that of a second one of the sections. The composite material may be produced by assembling preformed respective sections into a unitary structure or by immersing one of the sections in a solution to grow crystal of Y--Ba--Cu--O superconductive on that section, followed by trimming.

    摘要翻译： 一种复合材料，其具有整合成单一结构的多个部分，并且每个部分包括大部分RE-Ba-Cu-O的超导金属氧化物，其中RE表示稀土元素，每个部分的主体具有钉扎中心和 能够捕获磁场。 这些部分中的第一部分具有与第二部分的超导电流密度不同的超导电流密度。 复合材料可以通过将预成形的各个部分组装成单一结构或将其中一个部分浸入溶液中来生产，以在该部分上生长Y-Ba-Cu-O超导的晶体，然后进行修整。

    Magnetizing method for producing coupled body comprised of multi-pole bulk superconducting magnets with respective polarities varying
    5.
    发明授权
    Magnetizing method for producing coupled body comprised of multi-pole bulk superconducting magnets with respective polarities varying 失效
    用于制造具有各极性变化的多极体超导磁体的耦合体的磁化方法

    公开(公告)号：US06313725B1

    公开(公告)日：2001-11-06

    申请号：US09668617

    申请日：2000-09-22

    申请人： Ken Nagashima ,  Masato Murakami ,  Takeshi Miyamoto ,  Atsuyuki Kobayashi ,  Osami Tsukamoto

    发明人： Ken Nagashima ,  Masato Murakami ,  Takeshi Miyamoto ,  Atsuyuki Kobayashi ,  Osami Tsukamoto

    IPC分类号： H01F700

    CPC分类号： H01F6/006

    摘要： The invention is to establish means of producing easily and at low cost “a coupled body of superconducting magnets”, comprised of multi-pole bulk superconducting magnets lined up such that the polarities thereof alternately vary so as to cause a magnetic field gradient to occur. The magnetizing method for producing a coupled body comprised of multi-pole bulk superconducting magnets with respective polarities varying comprises the steps of coupling adjacent members for bulk superconducting magnets of a plurality of members for bulk superconducting magnets with each other in such a way as to be freely superposable, foldable, and unfoldable, superposing all the members for the bulk superconducting magnets on top of one after another, and applying a magnetizing process thereto in as superposed state, and unfolding alternately and juxtaposing the respective bulk superconducting magnets as superposed after the magnetizing process as shown in FIG. 1(A) to FIG. 1(D).

    摘要翻译： 本发明是建立容易且低成本地制造“超导磁体的耦合体”的方法，其包括排列成多极本体超导磁体的极性，使得其极性交替变化，从而产生磁场梯度。 用于制造由具有各自极性变化的多极体超导磁体组成的耦合体的磁化方法包括以下步骤：将多个用于块状超导磁体的多个构件的体超导磁体的相邻构件彼此连接， 自由地叠置，可折叠和不可折叠的，将大体积超导磁体的所有构件重叠在一个接一个的顶部，并且作为叠加状态施加磁化处理，并且在磁化之后交替地并置叠置的大块超导磁体 过程如图1所示。 图1（A）〜 1（D）。

    Tool clamp mechanism with shortened spindle
    8.
    发明授权
    Tool clamp mechanism with shortened spindle 失效
    工具夹紧机构，主轴缩短

    公开(公告)号：US5997455A

    公开(公告)日：1999-12-07

    申请号：US119582

    申请日：1998-07-21

    申请人： Nobuyuki Matsuoka ,  Ken Nagashima ,  Narihiko Hashimoto

    发明人： Nobuyuki Matsuoka ,  Ken Nagashima ,  Narihiko Hashimoto

    IPC分类号： B23B31/26 ,  B23Q3/157 ,  B23C5/26

    CPC分类号： B23B31/263 ,  Y10T409/309464 ,  Y10T483/1795

    摘要： A tool clamp mechanism includes a hollow spindle in which a tool can be inserted, the spindle having at least one slot which is axially elongated, a draw bar movably provided in the spindle, and a spindle head which rotatably supports the spindle. A drive ring is provided around the spindle. The drive ring and the draw bar are connected by a connecting pin which penetrates the drive ring and the draw bar through the slot of the spindle. A pusher lever is provided to the spindle head, which urges the drive ring so that the draw bar releases the tool. The drive ring has a contact surface which the pusher lever abuts. The contact surface is positioned ahead of the connecting pin in a pushing direction of the pusher lever.

    摘要翻译： 工具夹紧机构包括中空主轴，工具可以插入其中，所述主轴具有至少一个轴向延伸的槽，可移动地设置在主轴中的牵引杆和可旋转地支撑主轴的主轴头。 主轴周围设有传动环。 驱动环和拉杆通过连接销连接，该连接销穿过驱动环和拉杆穿过主轴的槽。 推动杆设置在主轴头上，其推动驱动环，使得拉杆释放工具。 驱动环具有推杆抵靠的接触表面。 接触表面沿着推杆的推动方向定位在连接销的前方。