Electrical Energy Storage Device (e.g., Accumulator, Etc.), Inductor, Transformer, Magnetic Switch, Magnetic Ring, Sphere, Coil, Or Magnetic Arrangement Patents (Class 505/211)
  • Patent number: 10332665
    Abstract: A layer wound magnet coil includes a central coil region and end coil regions adjoining the central coil region along an axial line of symmetry. The central coil region includes layers of coil windings of an anisotropic material. The end coil regions include layers of coil windings of the anisotropic superconducting material interspersed with layers of non-superconducting material.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 25, 2019
    Assignee: BRUKER BIOSPIN AG
    Inventors: Kenneth Guenter, Patrik Vonlanthen, Robert Schauwecker
  • Patent number: 10332641
    Abstract: A toroidal field coil for generating a toroidal magnetic field in a nuclear fusion reactor comprising a toroidal plasma chamber having a central column. The toroidal field coil comprises a portion passing through the central column. The portion passing through the central chamber comprises: ?a low temperature superconductor, LTS, layer (21) formed from LTS; ?a high temperature superconductor, HTS, layer (22) formed from HTS and located radially outward of the LTS layer. ?a non-superconducting conductive layer (23) formed from electrically conducting, non-superconducting material and located radially outward of the HTS and LTS layers.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: June 25, 2019
    Assignee: TOKAMAK ENERGY LTD
    Inventors: David Kingham, Mikhail Gryaznevich
  • Patent number: 9875833
    Abstract: A superconducting coil device includes at least one coil winding, including at least one first and one second superconducting strip conductor, the first and second strip conductors each having a superconducting layer and a contact side provided with a contact layer; at least one first contact electrically connecting the contact side of the first strip conductor to an external circuit via a first contact piece; at least one second contact electrically connecting the contact side of the second strip conductor to the external circuit via a second contact piece; and a third contact electrically connecting the first and second strip conductors via the contact layer of the first and the second strip conductor within the coil winding, wherein the contact side of the first strip conductor has a different orientation relative to a center of the coil winding than the contact side of second strip conductor.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: January 23, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Michael Frank, Jörn Grundmann, Wolfgang Nick, Marijn Pieter Oomen, Peter Van Hasselt
  • Patent number: 9767948
    Abstract: Novel configurations to improve the performance of superconducting magnetic energy storage system are described. The use of poloidal grading of the conductor, enabled by the use of 2nd generation YBCO conductors, is described. Methods to improve system performance when limited by the critical field of the superconductor are described, using optimized thin winding pack and thick winding pack toroidal geometries, where a uniform or near uniform magnetic field can be generated in a torus. Configurations that minimize structural requirements, weight and costs are also described. Cryostat innovations useful with toroidal systems are provided.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 19, 2017
    Assignee: Novum Industria LLC
    Inventors: Leslie Bromberg, Philip C. Michael
  • Patent number: 9748820
    Abstract: A superconducting electrical generator or motor having a plurality of cryostats is described. The cryostats contain coolant and a first cryostat encloses at least one of a plurality of superconducting coils. A first coil is in superconducting electrical communication with a second coil contained in a second cryostat through a superconducting conduction cooling cable enclosing a conductor. The first cryostat and the second cryostat may be in fluid communication through at least one cryogen channel within the at least one superconducting conduction cooling cable. In other embodiments, none of the plurality of cryostats may be in fluid communication and the cable may be cooled by conduction along the conductor from the first or second cryostat, or from both. The conductor may have different segments at temperatures equal to or above the temperature of the coolant and the superconducting conduction cooling cables may be connected through quick connect fittings.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: August 29, 2017
    Assignee: HYPER TECH RESEARCH, INC.
    Inventors: Michael J. Tomsic, Larry Long
  • Patent number: 9721707
    Abstract: A plurality of windings in a coil winding of a superconducting coil device includes at least one superconducting strip conductor that has a strip-shaped substrate strip and a superconducting layer arranged on the substrate strip. The coil device is subdivided into a plurality of segments in which adjacent windings are cast or adhered together within each segment, adjacent windings being, at most, weakly connected or adhered together in at least one sub-region, in the intermediate region between two adjacent segments.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: August 1, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Marijn Pieter Oomen
  • Patent number: 9575909
    Abstract: A recording apparatus includes a recording unit, a waveguide forming unit, a communication unit, and a memory controller. The recording unit is configured to record and hold data. The waveguide forming unit is configured to function as a transmission path that transmits the data. The communication unit is configured to communicate with the waveguide forming unit. The memory controller is configured to control input and output of the data to and from the recording unit.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: February 21, 2017
    Assignee: Sony Corporation
    Inventors: Takeshi Kubo, Takeharu Takasawa, Naofumi Goto, Seiji Kobayashi, Kenichi Kawasaki
  • Publication number: 20150133304
    Abstract: There is provided a high-temperature superconducting (HTS) coil and a method of manufacturing the same, allowing simple and excellent affixation between side panels for cooling the superconducting coil and the HTS coil while inhibiting delamination of an HTS wire. The method of manufacturing the HTS coil including the rare-earth-based HTS wire of the superconducting coil and side panels for cooling the superconducting coil which are affixed thereto, windings of the rare-earth-based HTS wire of the superconducting coil being separated between turns, includes: utilizing a tape-like polytetrafluoroethylene (PTFE) film 3 as an insulator between the windings of the rare-earth-based HTS wire 2 to form a PTFE-film co-wound superconducting coil; impregnating the PTFE-film co-wound superconducting coil 4 with epoxy resin 6; and affixing the side panels 5 to the-PTFE film co-wound superconducting coil 4.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 14, 2015
    Inventors: KATSUTOSHI MIZUNO, MASAFUMI OGATA, TOMOHISA YAMASHITA
  • Patent number: 8996084
    Abstract: A superconducting magnet device and a magnetic resonance imaging system not only avoid the need for costly aluminum alloy formers but also lower quench pressure effectively, have a baffle covering the former and the coil, with a gap between the baffle and the coil.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: March 31, 2015
    Assignee: Siemens PLC
    Inventors: Xian Zi Chen, An Feng Li, Xing En Yu
  • Patent number: 8989827
    Abstract: A superconducting magnet includes a superconducting coil, a heat shield surrounding the superconducting coil, a vacuum chamber accommodating the heat shield, a magnetic shield covering at least a part of the vacuum chamber, and a refrigerating machine fixed to the vacuum chamber to cool the superconducting coil through a heat conducting body. The magnetic shield abuts against said vacuum chamber with an elastic body therebetween to support the vacuum chamber.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: March 24, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hajime Tamura
  • Publication number: 20150080224
    Abstract: A coil unit is formed of an oxide superconducting wire having a surface in a form of a strip and wound. A residual magnetic field restraint unit is disposed in the coil unit. The residual magnetic field restraint unit has a throughhole extending in an axial direction of the coil unit. The residual magnetic field restraint unit is formed of a magnetic substance. A residual magnetic field can thus be restrained.
    Type: Application
    Filed: May 10, 2013
    Publication date: March 19, 2015
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takashi Nishimura, Takeshi Kato
  • Patent number: 8983562
    Abstract: An inductive fault current limiter (1), has a normally conducting primary coil assembly (2) with a multiplicity of turns (3), and a superconducting, short-circuited secondary coil assembly (4). The primary coil assembly (2) and the secondary coil assembly (4) are disposed at least substantially coaxially with respect to each other and at least partially interleaved in each other. The secondary coil assembly (4) has a first coil section (4a) disposed radially inside the turns (3) of the primary coil assembly (2) and a second coil section (4b) disposed radially outside the turns (3) of the primary coil assembly (2). The fault current limiter has an increased inductance ratio.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 17, 2015
    Assignee: Bruker HTS GmbH
    Inventors: Klaus Schlenga, Alexander Usoskin
  • Publication number: 20150072864
    Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.
    Type: Application
    Filed: November 3, 2014
    Publication date: March 12, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Anbo Wu, Minfeng Xu, Timothy James Hollis, Ye Bai, Weijun Shen, Evangelos Trifon Laskaris, Jian-She Wang, Yan Zhao
  • Publication number: 20150065350
    Abstract: A coil arrangement formed from a stripe-shaped superconductor assembly is composed of metal substrate (3) and at least one superconductor layer (4, 5) wherein the coil arrangement is such, that in adjacent turns current flow is in opposite direction in operation, and wherein the substrate side (3) is in a region without magnetic field by sandwiching the substrate side (3) between superconductor layers (4, 5) of same current direction during operation.
    Type: Application
    Filed: June 13, 2014
    Publication date: March 5, 2015
    Inventor: Achim Hobl
  • Publication number: 20150057158
    Abstract: A DC reactor consisting of a coil formed of a superconducting material is provided. It is possible to reduce leakage reactance and to increase critical current by using a coil formed of a high temperature superconducting material and forming a first bobbin of the DC reactor as a toroid shape.
    Type: Application
    Filed: October 25, 2012
    Publication date: February 26, 2015
    Inventors: Minwon Park, In-Keun Yu, Jin Geun Kim, Sang Jin Lee
  • Publication number: 20150051079
    Abstract: According to one embodiment, a superconducting magnet apparatus includes: a first superconducting coil and a second superconducting coil respectively arranged in a vacuum container; a first cooling unit configured to cool the first superconducting coil; and a second cooling unit configured to cool the second superconducting coil and controlled independently from the first cooling unit by a cooling method different from the cooling method of the first cooling unit.
    Type: Application
    Filed: June 26, 2014
    Publication date: February 19, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiko TAKAHASHI, Taizo Tosaka, Hiroshi Miyazaki, Sadanori Iwai
  • Publication number: 20150045228
    Abstract: A radio frequency-assisted fast superconducting switch is described. A superconductor is closely coupled to a radio frequency (RF) coil. To turn the switch “off,” i.e., to induce a transition to the normal, resistive state in the superconductor, a voltage burst is applied to the RF coil. This voltage burst is sufficient to induce a current in the coupled superconductor. The combination of the induced current with any other direct current flowing through the superconductor is sufficient to exceed the critical current of the superconductor at the operating temperature, inducing a transition to the normal, resistive state. A by-pass MOSFET may be configured in parallel with the superconductor to act as a current shunt, allowing the voltage across the superconductor to drop below a certain value, at which time the superconductor undergoes a transition to the superconducting state and the switch is reset.
    Type: Application
    Filed: April 9, 2013
    Publication date: February 12, 2015
    Applicant: Brookhaven Science Associates, LLC
    Inventors: Vyacheslav Solovyov, Qiang Li
  • Publication number: 20150045226
    Abstract: The invention provides for magnetic resonance imaging system (600) comprising a superconducting magnet (100) with a first current lead (108) and a second current lead (110) for connecting to a current ramping system (624). The magnet further comprises a vacuum vessel (104) penetrated by the first current lead and the second current lead. The magnet further comprises a magnet circuit (106) within the vacuum vessel. The magnet circuit has a first magnet circuit connection (132) and a second magnet circuit connection (134). The magnet further comprises a first switch (120) between the first magnet connection and the first current lead and a second switch (122) between the second magnet connection and the second current lead. The magnet further comprises a first current shunt (128) connected across the first switch and a second current shunt (130) connected across the second switch. The magnet further comprises a first rigid coil loop (124) operable to actuate the first switch.
    Type: Application
    Filed: January 14, 2013
    Publication date: February 12, 2015
    Inventors: Johannes Adrianus Overweg, Thomas Erik Amthor, Peter Forthmann, Falk Uhlemann, Bernd David
  • Patent number: 8948830
    Abstract: Fault Current Limiters (FCL) provide protection for upstream and/or downstream devices in electric power grids. Conventional FCL require the use of expensive conductors and liquid or gas cryogen handling. Disclosed embodiments describe FCL systems and devices that use lower cost superconductors, require no liquid cryogen, and are fast cycling. These improved FCL can sustain many sequential faults and require less time to clear faults while avoiding the use of liquid cryogen. Disclosed embodiments describe a FCL with a superconductor and cladding cooled to cryogenic temperatures; these are connected in parallel with a second resistor across two nodes in a circuit. According to disclosed embodiments, the resistance of the superconducting components and its sheath in the fault mode are sufficiently high to minimize energy deposition within the cryogenic system, minimizing recovery time.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: February 3, 2015
    Assignee: The Ohio State University
    Inventors: Michael Sumption, Edward Collings, Milan Majoros
  • Patent number: 8948829
    Abstract: An oxide superconducting bulk magnet member includes a plurality of bulk sections that have outer circumferences with outer circumferential dimensions different from each other and are disposed in a manner such that among the outer circumferences, an outer circumference in which the outer circumferential dimension is relatively large surrounds a small outer circumference; and interposed sections that are disposed between a pair of the bulk sections that are adjacent to each other, wherein a gap is formed between the bulk sections adjacent to each other, each of the bulk sections is an oxide bulk in which an RE2BaCuO5 phase is dispersed within an REBa2Cu3O7-x phase, and a bulk section having the smallest outer circumferential dimension among the bulk sections has a columnar shape or a ring shape, and bulk sections other than the bulk section having the smallest outer circumferential dimension have a ring shape.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: February 3, 2015
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Mitsuru Morita, Hidekazu Teshima
  • Publication number: 20150024941
    Abstract: A superconducting magnet includes a pair of superconducting coils, two heat shields surrounding the pair of superconducting coils, respectively, two vacuum chambers accommodating the two heat shields, respectively, and facing each other with a predetermined space sandwiched therebetween, a magnetic shield covering at least a portion of the two vacuum chambers, and two position adjustment mechanisms supporting the two vacuum chambers, respectively, in a position-adjustable manner. The two position adjustment mechanisms change distribution of a static magnetic field formed in the predetermined space by the pair of superconducting coils, by adjusting relative positional relation between the two vacuum chambers.
    Type: Application
    Filed: April 20, 2012
    Publication date: January 22, 2015
    Applicant: Mitsubishi Electric Corpaorion
    Inventor: Hajime Tamura
  • Publication number: 20150018218
    Abstract: A mechanically operating superconducting switch has two superconducting wires, a respective end of each superconducting wire being embedded in a respective block of superconducting material. A mechanical arrangement is provided for driving respective contact surfaces of the blocks into physical contact with each other, and for separating those services.
    Type: Application
    Filed: January 18, 2013
    Publication date: January 15, 2015
    Applicant: SIEMENS PLC
    Inventors: M'Hamed Lakrimi, Adrian Mark Thomas
  • Publication number: 20150018220
    Abstract: A superconducting magnet and method for making a superconducting magnet, are presented. The superconducting magnet is made by forming a coil from windings of a first wire comprising a reacted MgB2 monofilament, filling a cavity of a stainless steel billet with a Mg+B powder. Monofilament ends of the first wire and a similar second wire are sheared at an acute angle and inserted into the billet. A copper plug configured to partially fill the billet cavity is inserted into the billet cavity. A portion of the billet adjacent to the plug and the wires is sealed with a ceramic paste.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 15, 2015
    Applicant: Massachusetts Institute of Technology
    Inventors: Seungyong Hahn, Yukikazu lwasa, Juan Bascunan, John Peter Voccio, Jiayin Ling, Jungbin Song, YoungJae Kim
  • Publication number: 20140371076
    Abstract: The invention relates to a magnet structure for a superconducting isochronous cyclotron for use in particle therapy. The cyclotron according to the invention is using two sets of three or more superconducting sector coil elements for generating an azimuthally varying magnetic field across the acceleration region. In this way, high-field (e.g. above 4 T) isochronous cyclotrons are provided which do not suffer the problem of a low flutter amplitude.
    Type: Application
    Filed: February 1, 2013
    Publication date: December 18, 2014
    Inventor: Yves Jongen
  • Patent number: 8914086
    Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: December 16, 2014
    Assignee: General Electric Company
    Inventors: Anbo Wu, Minfeng Xu, Timothy James Hollis, Ye Bai, Weijun Shen, Evangelos Trifon Laskaris, Jian-She Wang, Yan Zhao
  • Publication number: 20140357492
    Abstract: A superconducting coil includes: first and second pancake coils that are formed by winding a superconducting wire, are stacked in a thickness direction, and are adjacent to each other; and a cooling substrate that is provided in contact with an end surface of the first pancake coil and is separable into a plurality of cooling plates.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Applicant: FUJIKURA LTD.
    Inventor: Masanori DAIBO
  • Publication number: 20140357495
    Abstract: A superconductor wire includes: a superconducting laminate that includes: a substrate and an intermediate layer; a superconductor layer, and a metal stabilization layer which are laminated on the substrate; and an insulation coating layer that covers an outer surface of the superconducting laminate and is formed by baking a resin material. Further, a maximum height Rz of at least a part of the outer surface of the superconducting laminate covered with the insulation coating layer is 890 nm or less.
    Type: Application
    Filed: August 14, 2014
    Publication date: December 4, 2014
    Applicant: Fujikura Ltd.
    Inventor: Masanori DAIBO
  • Publication number: 20140357494
    Abstract: A mounting plate for locating under a superconducting magnet structure, between the superconducting magnet structure and a supporting surface of a mobile carrier, is controllable between two different states. In a first state, the mount provides rigid attachment and precise location of the superconducting magnet structure onto the supporting surface of the mobile carrier. In a second state, the mount provides vibration isolation between the superconducting magnet and the mobile carrier.
    Type: Application
    Filed: November 19, 2012
    Publication date: December 4, 2014
    Applicant: SIEMENS PLC
    Inventors: Neil Belton, Richard Gowland, Trevor Bryan Husband, Nicholas Mann, Michael Simpkins
  • Publication number: 20140357491
    Abstract: A superconducting magnet apparatus includes: a bobbin around which a superconducting coil is wound, the bobbin serving as a protective resistor; a persistent current switch for supplying a persistent current to the superconducting coil; a first closed circuit with the superconducting coil and the persistent current switch connected in series to the coil; and a second closed circuit with the superconducting coil and the bobbin connected in series to the coil.
    Type: Application
    Filed: May 22, 2013
    Publication date: December 4, 2014
    Applicant: HITACHI, LTD.
    Inventors: Ryoji NAKAGAWA, Ryuya ANDO, Manabu AOKI
  • Patent number: 8903465
    Abstract: A superconducting magnet assembly includes a bobbin comprising a central bore along a longitudinal direction, and a superconducting coil package wound on the bobbin. The superconducting coil package includes a plurality of superconducting coil layers wound on the bobbin, a plurality of supporting member layers, each of the supporting member layers being between a corresponding two adjacent superconducting coil layers, and a thermal conduction layer between two superconducting coil layers or between a superconducting coil layer and an adjacent supporting member layer.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 2, 2014
    Assignee: General Electric Company
    Inventors: Xianrui Huang, Yan Zhao, Anbo Wu, Evangelos Trifon Laskaris, Paul St. Mark Shadforth Thompson
  • Patent number: 8886266
    Abstract: A superconducting coil and a rotating device, the performances of which are improved, and a superconducting coil manufacturing method are provided. A superconducting coil 10 is a saddle-shaped superconducting coil formed by winding a superconducting wire so as to form a race-track-like shape. The superconducting coil includes a curved portion 10b and a straight portion 10a connected to the curved portion 10b. In the curved portion 10b, an upper edge 10c is positioned closer to an inner peripheral side than a lower edge 10d is, and in the straight portion 10a, the upper edge 10c is positioned closer to an outer peripheral side than the lower edge 10d is.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: November 11, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tsuyoshi Shinzato, Hitoshi Oyama, Yutaka Komatsu, Takeshi Baba, Takeshi Ariyoshi
  • Publication number: 20140329689
    Abstract: There are provided the steps of: measuring a magnetic field in a predetermined space; and performing shimming by arranging a plurality of ferromagnetic shims in a superconducting magnet. The step of shimming includes arranging the plurality of shims at positions that make the magnetic field homogeneous, based on a result of measurement in the step of measuring the magnetic field and that provide a predetermined value of an electromagnetic force caused by the magnetic field to act on the plurality of shims.
    Type: Application
    Filed: March 1, 2012
    Publication date: November 6, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Hajime Tanabe
  • Publication number: 20140312999
    Abstract: A winding support has at least two parts on which to wind an electrical double coil in two winding planes situated in parallel, orthogonal to a winding axis. Each part has an annular structure with base areas that are identical for all of the parts, and an outer surface that is a band of the surface of a straight cylinder between the bases. Each part has a slit-shaped cut-out extending in a longitudinal direction over a portion of the length of the cylinder. The parts are adjacently connected with one another with a lateral separation therebetween in the direction of the winding axis, and with the cut-outs forming a common slit extending over both parts. An electrical coil has such a winding support, and a method to produce such a coil includes winding a conductor on such a winding support.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 23, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Marijn Pieter Oomen
  • Publication number: 20140302996
    Abstract: Disclosed is a method and apparatus for strongly enhancing vortex pinning by conformal crystal arrays. The conformal crystal array is constructed by a conformal transformation of a hexagonal lattice, producing a non-uniform structure with a gradient where the local six-fold coordination of the pinning sites is preserved, and with an arching effect. The conformal pinning arrays produce significantly enhanced vortex pinning over a much wider range of field than that found for other vortex pinning geometries with an equivalent number of vortex pinning sites, such as random, square, and triangular.
    Type: Application
    Filed: March 7, 2014
    Publication date: October 9, 2014
    Applicant: University of Notre Dame du Lac
    Inventors: Boldizsar Janko, Cynthia Reichhardt, Charles Reichhardt, Dipanjan Ray
  • Patent number: 8855731
    Abstract: A superconducting switch is provided in which the structural strength of the superconducting switch is kept, and thermal efficiency between a superconducting film and a heater is high when an ON state (superconducting state) and an OFF state (normal conducting state) of the superconducting switch are switched. The superconducting switch includes a substrate, a heater for generating heat by energization, a conductive film, and a MgB2 film evaporated on the conductive film. The heater, the conductive film and the MgB2 film are laminated in this order on one surface of the substrate.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: October 7, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Hideki Tanaka, Tsuyoshi Wakuda, Motomune Kodama, Akifumi Matsuda
  • Publication number: 20140296074
    Abstract: There is provided a superconducting magnet in which magnetization caused by a shielding current of a superconducting winding is eliminated whereby the current to be supplied to the superconducting winding is uniformized, and thus uniformity of the central magnetic field is secured. The superconducting magnet has a superconducting winding composed of a superconductor, and an outer AC winding composed of a superconductor or non-superconductor wound coaxially with the superconducting winding, at an outer side the superconducting winding; and an AC current is supplied to the outer AC winding thereby applying an AC magnetic field in a direction perpendicular to a direction of magnetization caused in the superconducting winding by the shielding current, and thus the magnetization is eliminated. Also, the superconducting magnet has an inner AC winding composed of a superconductor or non-superconductor wound coaxially with the superconducting winding, at an inner side of the superconducting winding layer.
    Type: Application
    Filed: November 15, 2013
    Publication date: October 2, 2014
    Applicant: Kyushu University, National University Corporation
    Inventors: Kazuhiro Kajikawa, Kazuo Funaki
  • Patent number: 8849364
    Abstract: The invention relates to a high-temperature superconductor (HTS) magnet system, preferably for an insertion device for generation of high-intensity synchrotron radiation, consisting of the coil body (6), on the mantle surface of which poles with windings that lie between them are disposed, wherein at least one high-temperature superconductor strip (23) is wound onto the coil body (6) in one direction, and adjacent winding packages or sections are electrically connected with one another in such a manner that the current flow runs in opposite directions, in each instance. The solution according to the invention has the advantage of a simplified winding process, whereby individual coil pairs can be replaced, if necessary, by means of the modular arrangement. The scheme can be applied to every possible configuration of an insertion device, and is therefore also suitable for use in so-called free electron lasers and other light sources based on particle accelerators.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: September 30, 2014
    Assignee: Babcock Noell GmbH
    Inventors: Cristian Boffo, Thomas Gerhard
  • Publication number: 20140287927
    Abstract: A method of manufacturing a coil support member in which a thermosetting or thermoplastic material is introduced into a mould cavity and hardened, wherein one or more components are positioned within the mould cavity during the manufacturing process before the thermosetting or thermoplastic material is introduced, the components are then embedded in the thermosetting or thermoplastic material and form an integral part of the coil support member, and one or more functional filler materials are added to the thermosetting or thermoplastic material to improve the thermal matching between the integral components and the thermosetting or thermoplastic material.
    Type: Application
    Filed: October 8, 2012
    Publication date: September 25, 2014
    Applicant: GE Energy Power Conversion Technology Ltd.
    Inventors: David John Swaffield, Martin Richard Ingles
  • Patent number: 8838193
    Abstract: A magnetic field source is provided comprising a support structure upon which is positioned a conducting surface path of superconductor material. The support structure has an at least partially radially overlapping layer of material arranged in a spiral. A corresponding conducting surface path of superconductor material is arranged on the surface of the support structure such that the conducting path has a first point for the introduction of current and a second point for the extraction of current.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: September 16, 2014
    Assignee: 3-CS Ltd
    Inventors: Eamonn Maher, Ian Leitch McDougall
  • Publication number: 20140243207
    Abstract: A method for winding a coil magnet with the stacked tape cables, and a coil so wound. The winding process is controlled and various shape coils can be wound by twisting about the longitudinal axis of the cable and bending following the easy bend direction during winding, so that sharp local bending can be obtained by adjusting the twist pitch. Stack-tape cable is twisted while being wound, instead of being twisted in a straight configuration and then wound. In certain embodiments, the straight length should be half of the cable twist-pitch or a multiple of it.
    Type: Application
    Filed: October 7, 2013
    Publication date: August 28, 2014
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventor: Makoto Takayasu
  • Patent number: 8818471
    Abstract: It is desired to perform assemble, disassemble, maintenance and the like, especially of a large site superconducting coil device, in a short time. The superconducting coil device includes a plurality of coil units arranged in a circle circumference to form a toroidal shape. Each of the plurality of coil units includes a cryostat and a superconducting coil stored in the cryostat, and has a first surface parallel with a radius of the circle circumference and a second surface parallel with the radius of the circle circumference and arranged in a first direction side of the circle circumference to the first surface. The first surface contacts with the second surface of a coil unit adjacent in one direction among the plurality of coil units. The second surface contacts with the first surface of a coil unit adjacent in other direction among the plurality of coil units.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: August 26, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hiroshi Kawashima
  • Publication number: 20140235451
    Abstract: An object of the present invention is to provide a method for protecting a superconducting coil, which method prevents damage to the superconducting coil caused by a quench or the like, in a new way, without using a voltage (a change in voltage) generated in the superconducting coil. Provided is the method for protecting a superconducting coil made by winding tape-like superconducting wire having a superconducting layer. Power from a power supply is shut off based on the magnitude of a screening field, which is a difference between a measured magnetic field B in a direction of a thickness of the superconducting wire at a predetermined position, and a magnetic field Bcal in the direction of the thickness of the superconducting wire calculated disregarding an effect of screening current.
    Type: Application
    Filed: March 7, 2014
    Publication date: August 21, 2014
    Applicants: Japan Superconductor Technology, Inc., National Institute for Materials Science
    Inventors: Davide Uglietti, Tsukasa Kiyoshi, Shinji Matsumoto, Mamoru Hamada
  • Publication number: 20140221215
    Abstract: A precursor for a Nb3Sn superconductor wire to be manufactured by the internal diffusion method, includes a plurality of Nb-based single core wires, each of which includes a Nb-based core coated with a Cu-based coating including a Cu-based matrix, a plurality of Sn-based single core wires, each of which includes a Sn-based core coated with a Cu-based coating including a Cu-based matrix; and a cylindrical diffusion barrier including Ta or Nb, in which the plurality of Nb-based single core wires and the plurality of Sn-based single core wires are regularly disposed, wherein the plurality of Nb-based single core wires include Nb-based single core wires having a Cu/Nb ratio of 0.4 or more, wherein the Cu/Nb ratio is a cross sectional area ratio of the Cu-based coating to the Nb-based core.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 7, 2014
    Applicant: SH Copper Products Co., Ltd.
    Inventors: Yoshihide Wadayama, Katsumi Ohata, Kazuhiko Nakagawa, Morio Kimura
  • Publication number: 20140213458
    Abstract: A superconducting coil body and a superconducting device are provided so as to achieve reduction of loss. A superconducting coil body includes: an inner circumferential coil body serving as a coil main body portion in which a superconducting wire is wound; and a first magnetic body serving as a magnetic circuit member. The magnetic circuit member is formed of a magnetic body, and is disposed to face the upper surface of the inner circumferential coil body, the upper surface being positioned at an end surface side thereof crossing a main surface of the superconducting wire in the inner circumferential coil body. The first magnetic body is used to form a magnetic circuit for permitting magnetic flux, which is generated by a current flowing in the coil main body portion, to travel around the current.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 31, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yuuichi Nakamura, Satoshi Arakawa, Tsuyoshi Shinzato, Hitoshi Oyama
  • Patent number: 8787998
    Abstract: A superconducting coil apparatus and a superconducting apparatus including the superconducting coil apparatus are provided. The superconducting coil apparatus includes a superconducting coil 10, an inner container 50 that holds the superconducting coil 10 therein, and an outer container 60. The inner container 50 and the outer container 60 are made of FRP. At a corner portion 71 of the inner container 50 and the outer container 60, a sealing reinforcement portion 2 made of a resin is formed so as to extend along the corner portion 71. Opening portions 53 and 63 are formed in side surfaces of the inner container 50 and the outer container 60. The sealing reinforcement portion 2 is disposed at the corner portion 71 of the opening portions 53 and 63, whereby the sealing performance of the container can be improved.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: July 22, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tsuyoshi Shinzato, Hitoshi Oyama
  • Publication number: 20140194294
    Abstract: The present invention relates to a method for producing superconducting coils (1) having the steps of providing a substrate (2) and applying a superconducting material in the form of at least one coil onto the substrate. The application of the superconducting material is performed by at least one coating method directly on the substrate. Winding coated flat wires can be dispensed with. Furthermore, the present invention comprises a superconducting apparatus comprising a superconducting coil (1) produced in accordance with the method.
    Type: Application
    Filed: August 6, 2012
    Publication date: July 10, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventor: Dierk Schröder
  • Publication number: 20140155269
    Abstract: An oxide superconductor wire includes: a superconductor laminate that comprises a substrate which is formed in a tape shape and an intermediate layer, an oxide superconductor layer, and a metal stabilizing layer which are laminated on the substrate; and an insulating coating layer that covers an outside surface of the superconductor laminate, Also, either the entire outside surface or the entire inside surface of the insulating coating layer is coated with a coating layer formed of a fluororesin.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: FUJIKURA LTD.
    Inventor: Masanori DAIBO
  • Patent number: 8738105
    Abstract: A superconducting integrated circuit may include a magnetic flux transformer having an inner inductive coupling element and an outer inductive coupling element that surrounds the inner inductive coupling element along at least a portion of a length thereof. The magnetic flux transformer may have a coaxial-like geometry such that a mutual inductance between the first inductive coupling element and the second inductive coupling element is sub-linearly proportional to a distance that separates the first inner inductive coupling element from the first outer inductive coupling element. At least one of the first inductive coupling element and the second inductive coupling element may be coupled to a superconducting programmable device, such as a superconducting qubit.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: May 27, 2014
    Assignee: D-Wave Systems Inc.
    Inventors: Andrew J. Berkley, Mark W. Johnson, Paul I. Bunyk
  • Publication number: 20140135223
    Abstract: The method comprises stripping matrix material from superconducting wires to expose superconducting filaments, placing the filaments between electrically conductive pieces, and applying magnetic welding to the electrically conductive pieces. The resulting superconducting joint comprises the filaments cold welded with molecular bonds between each other and between the filaments and the two electrically conductive pieces.
    Type: Application
    Filed: May 1, 2013
    Publication date: May 15, 2014
    Inventors: Mark BLUMENTHAL, M'Hamed LAKRIMI
  • Patent number: 8718732
    Abstract: The invention relates to a superconductor switching arrangement, including: a superconductor having a plurality of first connection zones and at least one second connection zone, the first and second connection zones being connectable by at least one superconducting path in use, a quenching device which is operable to selectively quench portions of the superconductor so as to remove the superconducting path between at least two of the first connection zones and the at least one second connection zone.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 6, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Christopher G Bright, Adam J McLoughlin