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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 2038. Отображено 100.
01-03-2012 дата публикации

Method of managing thermal contraction of a superconductor cable and arrangement for implementing this method

Номер: US20120053061A1
Автор: Erik Marzahn, Frank Schmidt, Nicolas Lallouet, Sebastien Delplace
Принадлежит: Nexans SA

A method of managing thermal contraction of a superconductor cable ( 2 ) having a cable body surrounded by an external screen ( 2 A) made form wound metal elements and installed between its ends in an enclosure ( 1 ) or cryostat filled with a cryogenic liquid, where the method includes mechanically applying a locking force loading only said screen ( 2 A) at a so-called locking point ( 5 A, 5 B) in the vicinity of the ends of the cable.

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Номер записи: 1
05-04-2012 дата публикации

Method of manufacturing a superconductive electrical conductor, and superconductive conductor

Номер: US20120083414A1
Автор: Beate West, Rainer Soika
Принадлежит: Nexans SA

A method of manufacturing a superconductive electric conductor is indicated, which includes as the superconductive material as ceramic material. For carrying out the method, around a plurality of flat strips ( 1 ) of a carrier coated with a superconductive ceramic material, a longitudinally entering metal band ( 3 ) is formed into a pipe having a slot extending in the longitudinal direction, where the edges located at the slot next to each other are welded together. The strips ( 1 ) are fed to the pipe with continuous change of location in such a way that each strip along the length of the conductor assumes different positions over the cross section thereof. The pipe ( 9 ) closed by the welding procedure is subsequently reduced to an interior width which corresponds approximately to an enveloping curve of all strips ( 1 ) located in the pipe.

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Номер записи: 2
07-03-2013 дата публикации

Cryogenic cable termination connector

Номер: US20130059463A1
Автор: Masashi Yagi, Shinichi Mukoyama, Tokui Yonemura, Tomoya Nomura
Принадлежит: Furukawa Electric Co Ltd, International Superconductivity Technology Center

A cryogenic cable termination connector having a small heat inflow from the outside and stable electrical insulation properties. The cryogenic cable termination connector includes a lead-out conductor led out from a site at a very low temperature to a site at room temperature via a liquid refrigerant layer, a refrigerant gas layer, and an oil layer. The lead-out conductor includes a capacitor-cone insulator in which plural metal foils for dividing an electric field from a high voltage level down to the ground voltage level are stacked through an insulator. Among electric field tilting portions in which voltage changes gradually from the high voltage level to the ground voltage level, an electric field tilting portion positioned at a lower part is located in the liquid refrigerant layer and an electric field tilting portion positioned at an upper part is located in the oil layer.

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Номер записи: 3
04-04-2013 дата публикации

OXIDE SUPERCONDUCTOR CABLING AND METHOD OF MANUFACTURING OXIDE SUPERCONDUCTOR CABLING

Номер: US20130085071A1
Автор: AOKI Yuji, Hasegawa Takayo, Kaneko Atsushi, Koizumi Tsutomu, Nakanishi Tatsuhisa
Принадлежит:

Disclosed are an oxide superconductor tape and a method of manufacturing the oxide superconductor tape capable of improving the length and characteristics of superconductor tape and obtaining stabilized characteristics across the entire length thereof. A Y-class superconductor tape (), as an oxide superconductor tape, comprises a tape () further comprising a tape-shaped non-oriented metallic substrate (), and a first buffer layer (sheet layer) () that is formed by IBAD upon the tape-shaped non-oriented metallic substrate (); and a second buffer layer (gap layer) (), further comprising a lateral face portion () that is extended to the lateral faces of the first buffer layer (sheet layer) () upon the tape () by RTR RF-magnetron sputtering. 1. An oxide superconductor tape comprising:a tape-shaped metallic substrate;a first buffer layer disposed on the tape-shaped metallic substrate; anda second buffer layer disposed on the first buffer layer,wherein the second buffer layer is extended to a lateral face of the first buffer layer.2. The oxide superconductor tape according to claim 1 , wherein: the first buffer layer includes one or more buffer layers claim 1 , and the second buffer layer is formed directly beneath an oxide superconductor layer.3. The oxide superconductor tape according to claim 1 , wherein the second buffer layer is a thin film that is more acid-resistant than the first buffer layer.4. The oxide superconductor tape according to claim 1 , wherein the second buffer layer is a CeOfilm.5. The oxide superconductor tape according to claim 1 , wherein a thickness of the lateral face of the second buffer layer is ⅕ or less of a thickness of a principal surface of the second buffer layer.6. The oxide superconductor tape according to claim 1 , wherein the second buffer layer is extended so as to cover at least ½ of the lateral face of the first buffer layer.7. The oxide superconductor tape according to claim 1 , wherein the second buffer layer is extended to a ...

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Номер записи: 4
11-04-2013 дата публикации

METHOD FOR COOLING SUPERCONDUCTING JOINTS

Номер: US20130090245A1
Автор: Simpkins Michael
Принадлежит: Siemens PLC

A superconducting joint that electrically joins superconducting wires has a block of thermally and electrically conductive material that is coated with an electrically isolated coating that covers at least a part of a surface of the block. Molded semiconducting joint material is provided in contact with the electrically isolating coating. Superconducting filaments of the superconducting wires are embedded within the molded superconducting joint material. 1. A superconducting joint , electrically joining superconducting wires , comprising:a block of thermally and electrically conductive material arranged to be cryogenically cooled;an electrically isolating coating covering at least a part of a surface of the block; andmolded superconducting joint material in contact with the electrically isolating coating;wherein superconducting filaments of the superconducting wires embedded within the molded superconducting joint material.2. A superconducting joint according to claim 1 , wherein the block is of a material comprising a metal claim 1 , and the electrically isolating coating comprises an oxide of that metal.3. A superconducting joint according to claim 2 , wherein the metal is aluminum or copper.4. A superconducting joint according to claim 1 , wherein the electrically isolating coating comprises a layer of polymer.5. A superconducting joint according to claim 1 , wherein the electrically isolating coating comprises a ceramic layer.6. A superconducting joint claim 1 , electrically joining superconducting wires claim 1 , comprising:a block of thermally conductive but electrically isolating material arranged to be cryogenically cooled; andmolded superconducting joint material in contact with a surface of the block, wherein superconducting filaments of the superconducting wires are embedded within the molded superconducting joint material.7. A superconducting joint according to claim 6 , further comprising a pillar claim 6 , mechanically joined to the cooled block claim ...

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Номер записи: 5
23-05-2013 дата публикации

SUBSTRATE FOR SUPERCONDUCTING WIRE ROD, SUPERCONDUCTING WIRE ROD, AND METHOD FOR PRODUCING SUPERCONDUCTING WIRE ROD

Номер: US20130130915A1
Автор: FUKUSHIMA Hiroyuki, Hayase Yuko, KASAHARA Masayasu, Okuno Yoshikazu
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

The phase transition temperature, at which the crystal lattice of LMO that constitutes an oxide layer as an intermediate layer or as a part of an intermediate layer becomes cubic, is lowered. A substrate for a superconducting wire rod includes an oxide layer (LMO layer ()) which contains, as a principal material, a crystalline material represented by the compositional formula: La(MnM)O(wherein M represents at least one of Cr, Al, Co or Ti, δ represents an oxygen non-stoichiometric amount, 0 Подробнее

Номер записи: 6
23-05-2013 дата публикации

SUPERCONDUCTING THIN FILM AND METHOD OF MANUFACTURING SUPERCONDUCTING THIN FILM

Номер: US20130130916A1
Автор: FUKUSHIMA Hiroyuki, Hayase Yuko, Kojima Eiji, Okuno Yoshikazu, Sakamoto Hisaki
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

Adhesiveness between a metallic substrate and a metal oxide layer is made to increase. A superconducting thin film () includes a metallic substrate (), a metallic layer () that is formed on a main surface of the metallic substrate () and includes a metal element capable of being passivated as a main component, a metal oxide layer () that is formed on the metallic layer () and includes the passivated metal element as a main component, and a superconducting layer () that is formed on the metal oxide layer () directly or through an intermediate layer and includes an oxide superconductor as a main component. 1. A superconducting thin film comprising:a metallic substrate,a metallic layer formed on a main surface of the metallic substrate, wherein the metallic layer comprises a metal element,a metal oxide layer that is formed on the metallic layer, wherein the metal oxide layer comprises the metal element in passivated form, anda superconducting layer formed on the metal oxide layer directly or through an intermediate layer, wherein the superconducting layer comprises an oxide superconductor.2. The superconducting thin film according to claim 1 , wherein the metal oxide layer has a formula of AO(1<(j/i)≦3) claim 1 , wherein A is at least one selected from the group consisting of Al claim 1 , Cr claim 1 , and a rare-earth element.3. The superconducting thin film according to claim 1 , wherein an oxide of the metal element and the metal element co-exist between the metallic layer and the metal oxide layer claim 1 , and the superconducting thin film further comprises a composition gradient layer between the metallic layer and the metal oxide layer claim 1 , wherein a ratio of the oxide of the metal element with respect to the metal element continuously increases in a lamination direction from the metallic layer to the metal oxide layer.4. The superconducting thin film according to claim 1 , wherein a thickness of the metal oxide layer is 10 nm or more.5. The superconducting ...

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Номер записи: 7
30-05-2013 дата публикации

METHOD OF PRODUCING SUPERCONDUCTING CONDUCTOR, SUPERCONDUCTING CONDUCTOR, AND SUBSTRATE FOR SUPERCONDUCTING CONDUCTOR

Номер: US20130137579A1
Автор: Higuchi Masaru, Nagasu Yoshinori, Sakamoto Hisaki
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

A method for producing a superconductive conductor includes: a base material preparation process of preparing a base material having a groove formed on at least one face thereof; a superconducting layer formation process of forming a superconducting layer on a surface of the base material at a side at which the groove is formed; and a cutting process of cutting completely through the base material along the groove. 1: A method for producing a superconductive conductor , the method comprising:forming a superconducting layer on a surface of a base material wherein the surface of the base material has a first groove; andcutting completely through the base material along the first groove.2: The method of claim 1 , wherein a depth of the first groove is greater than or equal to a thickness of the superconducting layer claim 1 , but less than a thickness of the base material.3: The method of claim 1 , wherein an opening area of an uppermost portion of the first groove is larger than an area of a bottom face of the first groove.4: The method of claim 1 , wherein a surface roughness Ra of an inner wall face of the first groove is 0.02 μm or more.5: The method of claim 1 , wherein the base material is a substrate having an intermediate layer disposed thereon.6: The method of claim 5 , wherein the first groove is formed on at least one surface of the substrate claim 5 , and the intermediate layer is disposed on a surface at a side at which the first groove is formed.7: The method of claim 1 , wherein the base material further has a second groove on a surface of the base material at a side opposite to the surface on which the first groove is formed.8: The method of claim 1 , wherein the first groove is continuous from one end of the base material to the other end of the base material.9: The method of claim 5 , wherein the cutting is carried out after at least the intermediate layer is formed.10: The method of claim 1 , wherein the cutting is carried out after the ...

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Номер записи: 8
13-06-2013 дата публикации

SUPERCONDUCTIVE MULTI-PHASE CABLE SYSTEM, A METHOD OF ITS MANUFACTURE AND ITS USE

Номер: US20130150246A1
Автор: Daumling Manfred, Lindsay David, Roden Mark, Tolbert Jerry C., Traeholt Chresten, Willen Dag
Принадлежит: NKT CABLES ULTERA A/S

The invention relates to a superconductive multi-phase, fluid-cooled cable system comprising a) a cable comprising at least three electrical conductors constituting at least two electrical phases and a zero- or neutral conductor, said electrical conductors being mutually electrically insulated from each other, and b) a thermal insulation defining a central longitudinal axis and having an inner surface and surrounding the cable, said inner surface of said thermal insulation forming the radial limitation of a cooling chamber for holding a cooling fluid for cooling said electrical conductors. The invention further relates to a method of manufacturing a cable system and to its use. The object of the present invention is to provide a simplified manufacturing and installation scheme for a fluid cooled cable system. The problem is solved in that said cable—at least over a part of its length—is located eccentrically relative to said central longitudinal axis when viewed in a cross section perpendicular to said longitudinal axis and where the eccentric location has the function of accommodating thermal shrinkage and expansion of the cable with respect to the thermal insulation. 1. A method of manufacturing a superconductive single-phase or multi-phase cable system comprising the steps ofa) providing at least two electrical conductors in the form of at least one electrical phase conductor and a neutral conductor,b) providing that said electrical conductors are mutually electrically insulated from each other,c) providing a tubular thermal insulation surrounding the electrical conductors, said tubular thermal insulation defining a central longitudinal axis,d) providing that the inner surface of said tubular thermal insulation forms the radial limitation of a cooling chamber for holding a cooling fluid for cooling said electrical conductors, ande) providing that said at least one electrical phase conductor and neutral conductor are arranged eccentrically relative to said central ...

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Номер записи: 9
13-06-2013 дата публикации

METHODS FOR FORMING SUPERCONDUCTOR ARTICLES AND XRD METHODS FOR CHARACTERIZING SAME

Номер: US20130150247A1
Автор: Gibson David M., Gibson Walter M., Huang Huapeng, Reeves Jodi Lynn
Принадлежит: SUPERPOWER INC.

A method for forming a superconductive article is disclosed. According to one method, a substrate is provided, the substrate having an aspect ratio of not less than about 1×10, forming a buffer layer overlying the substrate, forming a superconductor layer overlying the buffer layer, and characterizing at least one of the substrate, the buffer layer and the superconductor layer by x-ray diffraction. In this regard, x-ray diffraction is carried out such that data are taken at multiple phi angles. Data acquisition at multiple phi angles permits robust characterization of the film or layer subject to characterization, and such data may be utilized for process control and/or quality control. Additional methods for forming superconductive articles, and for characterizing same with XRD are also disclosed. 1. A method of forming a superconductive article , comprising the steps of:{'sup': '3', 'providing a substrate, the substrate having an aspect ratio of not less than about 1×10;'}forming a buffer layer overlying the substrate;forming a superconductor layer overlying the buffer layer; andcharacterizing at least one of the substrate, the buffer layer and the superconductor layer by x-ray diffraction, wherein x-ray diffraction data are taken at multiple phi angles.2. The method of claim 1 , wherein characterizing is carried out utilizing an x-ray diffraction apparatus claim 1 , the apparatus comprising an x-ray source and an x-ray detector claim 1 , wherein x-rays are directed and detected at multiple angles corresponding to the multiple phi angles.3. The method of claim 2 , wherein the substrate and the source and detector are re-positioned relative to each other at said multiple angles corresponding to the multiple phi angles claim 2 , such that characterizing can be carried out at said multiple phi angles.4. The method of claim 3 , wherein the source and the detector are rotated relative to the substrate.5. The method of claim 4 , wherein the source and the detector are ...

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Номер записи: 10
20-06-2013 дата публикации

CONNECTION STRUCTURE FOR SUPERCONDUCTING CABLES, METHOD FOR LAYING THE SAME, AND METHOD FOR VACUUMING CONNECTION STRUCTURE FOR SUPERCONDUCTING CABLES

Номер: US20130157867A1
Автор: Matsuoka Taro, Mitsuhashi Takaharu, Nomura Tomoya, Yagi Masashi
Принадлежит:

A thermal insulation tube has a double-structure including a thermal insulation internal tube and a thermal insulation external tube, an intermediate connecting part has a double-structure including an outer container and an inner container, the internal tube and the external tube penetrate through a wall surface of the outer container and are introduced at least up to a wall surface of the inner container, a region between the internal tube and the external tube is sealed by joining an end to be introduced of the internal tube and an end to be introduced of the external tube, at an introduction portion of the external tube to be positioned on an inner side of a wall surface of the outer container, and a corrugated tubular part has a tube wall thinner than the external tube outside of the wall surface. 1. A connection structure for superconducting cables for connecting superconducting cables each having a cable core housed in a thermal insulation tube with a cooling medium by an intermediate connecting part , the cable core being provided with a former and a superconducting conductor layer , whereinthe thermal insulation tube has a double-structure constituted of a thermal insulation internal tube and a thermal insulation external tube, and the intermediate connecting part has a double-structure constituted of an outer container and an inner container,the thermal insulation internal tube and the thermal insulation external tube penetrate a wall surface of the outer container and introduced at least up to a wall surface of the inner container, an end to be introduced of the thermal insulation internal tube and an end to be introduced of the thermal insulation external tube are joined so as to seal each of a region between the thermal insulation internal tube and the thermal insulation external tube and a region between the outer container and the inner container,at an introduction portion of the thermal insulation external tube to be positioned inside of a wall ...

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Номер записи: 11
27-06-2013 дата публикации

SUPERCONDUCTING CABLE LINE

Номер: US20130165326A1
Автор: Mukoyama Shinichi, Nomura Tomoya, Yagi Masashi, Yonemura Tokui
Принадлежит:

In a superconducting cable line in which a superconducting cable is connected to a terminal connecting part or an intermediate connecting part, an offset part in which a superconducting cable is laid in a curved-shape is provided near the terminal connecting part or the intermediate connecting part. Further, when it is assumed that the superconducting cable is movable in the offset part, an external tube of the superconducting cable is fixed such that a maximum amplitude part which maximizes the amount of movement of the superconducting cable following thermal expansion and contraction of a cable core becomes immovable. 1. A superconducting cable line in which a superconducting cable , being formed by housing a cable core in a thermal insulation tube , is laid and connected to a terminal connecting part or an intermediate connecting part , wherein:the cable core comprises a superconducting conductor layer, and the thermal insulation tube comprises an external tube and an internal tube,the superconducting cable line comprising:an offset part in which the superconducting cable is laid in a curved-shape so as to absorb a thermal expansion and contraction length of the cable core; anda fixed part in which a part of the external tube in the offset part is fixed.2. The superconducting cable line according to claim 1 , wherein the fixed part exists in a region selected from a group consisting of:a region which includes a point on a curve of an arc apart farthest in a vertical direction with respect to a line connecting inflection points of the curve forming ends of the arc forming the offset part, anda region between the inflection points and the point on the curve.3. The superconducting cable line according to claim 2 , wherein:a difference between a length at 40° C. and a length at −196° C. of a cable core from the point on the curve to an end of the superconducting cable connected to the terminal connecting part or the intermediate connecting part closest to the point ...

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Номер записи: 12
11-07-2013 дата публикации

Superconductive cable

Номер: US20130174584A1
Автор: Mark Stemmle, Rainer Soika
Принадлежит: Nexans SA

A superconductive cable which has a cryostat with two concentric metal pipes where the cryostat has at least a first axial section with a first axial spring constant, and at least a second axial section which has a second axial spring constant which at most is 20%, more preferred at most 10%, of the axial spring constant of the first section.

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Номер записи: 13
25-07-2013 дата публикации

ARRANGEMENT WITH A SUPERCONDUCTIVE ELECTRICAL DIRECT CURRENT CABLE SYSTEM

Номер: US20130190183A1
Автор: Marzahn Erik, Stemmle Mark
Принадлежит:

An arrangement with a superconductive electrical direct current cable system is specified which includes at least one direct current transmission element () composed of two phase conductors which are insulated relative to each other, and a cryostat suitable for conducting a cooling agent, in which the direct current cable system is arranged. The cryostat is composed of at least one metal pipe which is surrounded by a circumferentially closed layer with thermally insulating properties. Each of the two phase conductors () is composed of several superconductive elements () which are combined into a unit. Between the two phase conductors () is mounted a separating layer () of insulating material, and the two phase conductors (), including the separating layer () are surrounded by a sheath () of insulating material for forming a direct current transmission element (). 1. Arrangement with a superconductive electrical direct current cable system comprising:at least one direct current transmission element composed of two phase conductors which are insulated relative to each other; anda cryostat suitable for conducting a cooling agent, wherein the cryostat is composed of at least one metal pipe which is surrounded by a circumferentially closed layer with thermal insulating properties,wherein each of the two phase conductors is composed of several superconductive elements which are combined to form a unit,a separating layer of insulating material is mounted between the two phase conductors, andthe two phase conductors, including the separating layer, are surrounded by a sheath of insulating material for forming a direct current transmission element.29. The arrangement according to claim 1 , wherein the superconductive elements are flat strips ().3. The arrangement according to claim 1 , wherein the superconductive elements are round wires.4. The arrangement according to claim 1 , wherein at least one direct current transmission element claim 1 , composed of two phase ...

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Номер записи: 14
25-07-2013 дата публикации

METHOD OF MANUFACTURING BASE MATERIAL FOR SUPERCONDUCTING CONDUCTOR, METHOD OF MANUFACTURING SUPERCONDUCTING CONDUCTOR, BASE MATERIAL FOR SUPERCONDUCTING CONDUCTOR, AND SUPERCONDUCTING CONDUCTOR

Номер: US20130190188A1
Автор: FUKUSHIMA Hiroyuki, Hayase Yuko, Kojima Eiji, Okuno Yoshikazu
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

A method for manufacturing a base material for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer having conductivity on a substrate ; and a biaxially oriented layer forming process of forming a biaxially oriented layer on the bed layer 1. A method for manufacturing a base material for a superconductive conductor , the method comprising:forming process of forming a non-oriented bed layer having conductivity on a substrate; andforming process of forming a biaxially oriented layer on the bed layer.2. The method of claim 1 , wherein the forming of the biaxially oriented layer comprises sputtering.3. The method of claim 1 , wherein an electrical resistivity of the bed layer is equal to or lower than 10Ω·cm.4. The method of claim 3 , wherein the electrical resistivity of the bed layer is equal to or lower than 10Ω·cm.5. The method of claim 3 , wherein the electrical resistivity of the bed layer is equal to or higher than 10Ω·cm.6. The method of claim 1 , wherein the bed layer comprises LiTiO claim 1 , SrRuO claim 1 , or both.7. The method of claim 1 , wherein the biaxially oriented layer comprises MgO.8. A method for manufacturing a superconductive conductor claim 1 , the method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'manufacturing a base material by the method of ; and'}forming a superconducting layer on the biaxially oriented layer.9. The method of claim 8 , further comprising forming an additional oriented layer after the forming of the biaxially oriented layer but before the forming of the superconducting layer claim 8 , wherein the superconducting layer is formed on the additional oriented layer.10. A base material claim 8 , comprising:a substrate;a non-oriented bed layer having conductivity, disposed on the substrate; anda biaxially oriented layer disposed on the bed layer,wherein the base material is suitable for a superconductive conductor.11. The base material of claim 10 , ...

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Номер записи: 15
01-08-2013 дата публикации

SUPERCONDUCTING CABLE

Номер: US20130196857A1
Автор: Mukoyama Shinichi, Nomura Tomoya, Yagi Masashi, Yonemura Tokui
Принадлежит:

An AC superconducting cable with an insulating layer on the external circumference of a conductor, and wherein: the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, from the inside layer to the outside layer; the insulating layer is impregnated with liquid nitrogen; the product of the dielectric constant ∈ of the first insulating layer and the dielectric loss tangent tan δ and the product of the dielectric constant ∈ of the second insulating layer and the dielectric loss tangent tan δ fulfilling the relationship ∈×tan δ×tan δ; and the product of the dielectric constant ∈ of the second insulating layer and the dielectric loss tangent tan δ and the product of the dielectric constant ∈ of the third insulating layer and the dielectric loss tangent tan δ fulfilling the relationship ∈×tan δ×tan δ 1. A superconducting cable , comprising:an insulating layer formed around an external circumference of a conductor, whereinthe insulating layer has at least three layers of a first insulating layer, a second insulating layer and a third insulating layer respectively from an inside layer to an outside layer, and the insulating layer is impregnated with liquid nitrogen,{'b': 1', '1', '2', '2', '1', '1', '2', '2', '2', '2', '3', '3', '2', '2', '3', '3, 'a product of dielectric constant ∈ and dielectric loss tangent tan δ of the first insulating layer and a product of dielectric constant ∈ and dielectric loss tangent tan δ of the second insulating layer fulfill a relationship ∈×tan δ>∈×tan δ, and the product of dielectric constant ∈ and dielectric loss tangent tan δ of the second insulating layer and a product of dielectric constant ∈ and dielectric loss tangent tan δ of the third insulating layer fulfill a relationship ∈×tan δ<∈×tan δ.'}222. The superconducting cable according to wherein the product of dielectric constant ∈ and dielectric loss tangent tan δ of the second insulating layer is equal to or less than 0.04%.3. The ...

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Номер записи: 16
08-08-2013 дата публикации

FIXATION STRUCTURE OF SUPERCONDUCTING CABLE AND FIXATION STRUCTURE OF SUPERCONDUCTING CABLE LINE

Номер: US20130199821A1
Автор: Matsuoka Taro, Mukoyama Shinichi, Teng Jun, Yagi Masashi, Yonemura Tokui
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

A fixation structure for fixing a superconducting cable including a cable core and a thermal insulation tube. The fixation structure includes a fixation box connected to the thermal insulation tube, including a hollow thermal insulation structure, and through which the cable core is passed, a fixation body for fixing the cable core on the inner wall of the fixation box, and a diameter-expanded reinforcement layer that is an electrical insulation layer that has a diameter decreasing toward both ends and is formed on the cable core. A refrigerant flows through the inside of the inner wall of the fixation box. The cable core is fixed on the inner wall with the fixation body through the diameter-expanded reinforcement layer. The structure implements a simple and low-cost fixation structure appropriate for an electric field design. 1. A fixation structure of a superconducting cable comprising a cable core which comprises a former and a superconductor layer , and a thermal insulation tube housing the cable core and having a thermal insulation structure configured of an internal tube and an external tube , the fixation structure comprising:a fixation box connected to the thermal insulation tube, having a thermal insulation structure configured of an inner wall and an outer wall, through which the cable core penetrates;a fixation body for fixing the cable core on the inner wall of the fixation box; anda diameter-expanded reinforcement layer, as an electrical insulation layer, being formed on the cable core and having a diameter decreasing toward both ends;wherein a refrigerant can flow through an inside of the inner wall of the fixation box, andthe cable core is fixed on the inner wall with a fixation body through the diameter-expanded reinforcement layer.2. The fixation structure of a superconducting cable according to claim 1 ,wherein the fixation body comprises a sleeve having a shape corresponding to a shape of an outer surface of the diameter-expanded reinforcement ...

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Номер записи: 17
08-08-2013 дата публикации

Superconducting structure comprising coated conductor tapes, in particular stapled perpendicularly to their substrate planes

Номер: US20130203604A1
Автор: Usoskin Alexander
Принадлежит: BRUKER HTS GMBH

A superconducting structure () has a plurality of coated conductor tapes ( -), each with a substrate () which is one-sided coated with a superconducting film (), in particular an YBCO film, wherein the superconducting structure () provides a superconducting current path along an extension direction (z) of the superconducting structure (), wherein the coated conductor tapes (-) provide electrically parallel partial superconducting current paths in the extension direction (z) of the superconducting structure (), is characterized in that the coated conductor tapes (-) are superconductively connected among themselves along the extension direction (z) continuously or intermittently. A more stable superconducting structure with which high electric current strengths may be transported is thereby provided. 1. A superconducting structure comprising:a plurality of coated conductor tapes, each tape having a substrate, wherein each substrate is coated on one side thereof with a superconducting film or with a YBCO film, the superconducting structure providing a superconducting current path along a z-direction of the superconducting structure, wherein said coated conductor tapes provide electrically parallel partial superconducting current paths in said z-direction of the superconducting structure, said coated conductor tapes being superconductively connected among themselves along said z-direction in a continuous or intermittent manner, the superconducting structure having a y-direction extending substantially parallel to planar extensions of said substrates and substantially perpendicular to said z-direction as well as an x-direction extending substantially perpendicular to said planar extensions of said substrates.2. The superconducting structure of claim 1 , wherein said coated conductor tapes form a labyrinth structure comprising at least three levels of coated conductor tapes claim 1 , wherein coated conductor tapes of each level are superconductively connected in a linear ...

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Номер записи: 18
15-08-2013 дата публикации

HIGH TEMPERATURE SUPERCONDUCTING TAPE CONDUCTOR HAVING HIGH CRITICAL AMPACITY

Номер: US20130210635A1
Автор: Prusseit Werner, SEMERAD Robert
Принадлежит: Theva Dünnschichttechnik GmbH

The invention relates to a high temperature superconducting tape conductor having a flexible metal substrate that comprises at least one intermediate layer disposed on the flexible metal substrate and comprising terraces on the side opposite the flexible metal substrate, wherein a mean width of the terraces is less than 1 μm and a mean height of the terraces is more than 20 nm, and that comprises at least one high temperature superconducting layer disposed on the intermediate layer, which is disposed on the at least one intermediate layer and comprises a layer thickness of more than 3 μm. The ampacity of the high temperature superconducting tape conductor relative to the conductor width is more than 600 A/cm at 77 K. 1. High temperature superconducting tape conductor with a flexible metal substrate , comprising:a. at least one intermediate layer that is arranged on the flexible metal substrate and which comprises on the side that is opposed to the flexible metal substrate terraces, whereinb. a mean width of the terraces is less than 1 μm and a mean height of the terraces is more than 20 nm, andc. at least one high temperature superconducting layer that is arranged on the intermediate layer, which is arranged on the at least one intermediate layer and comprises a layer thickness of more than 3 μm, andd. wherein the ampacity that is related to the conductor width of the high temperature superconducting tape conductor is higher than 600 A/cm at 77 K.2. High temperature superconducting tape conductor according to claim 1 , wherein the high temperature v layer comprises a layer thickness of 5 μm to 10 μm.3. High temperature superconducting tape conductor according to claim 1 , wherein the mean height of the terraces of the at least one intermediate layer comprises a range of 5o nm to 200 nm.4. High temperature superconducting tape conductor according to claim 1 , wherein the maximum mean height of the terraces does not exceed 20% of the layer thickness of the high ...

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Номер записи: 19
19-09-2013 дата публикации

SUPERCONDUCTING ELEMENT JOINT, A PROCESS FOR PROVIDING A SUPERCONDUCTING ELEMENT JOINT AND A SUPERCONDUCTING CABLE SYSTEM

Номер: US20130244881A1
Автор: Fisher Paul W., Lindsay David, Nielsen Carsten Thidemann, Roden Mark, Tolbert Jerry C., Traeholt Chresten, Willen Dag
Принадлежит: NKT CABLES ULTERA A/S

The invention relates to a superconducting element joint comprising a joint between two superconducting elements comprising at least one direct SC-SC transition joint. By the invention an improved superconducting element joint may be obtained. 1. A superconducting cable system comprising a superconducting cable joint , said system comprisingat least one superconducting single phase or multi-phase cable, hereunder triax cable, comprising a central inner and an outer cooling channel comprising cooling fluid and a thermal envelope surrounding said at least one cable;a thermally insulated joint housing surrounding said superconducting cable joint, said joint housing comprising its own cooling medium supply and drain, and said joint housing being open for flow of this cooling medium along the superconducting cable joint; andat least one termination.2. A superconducting cable system according to where said joint housing comprises a prefabricated joint-cooler interface arranged such that the cooling is exchanged by means of a cooling fluid selected from at least one of gas claim 1 , liquid claim 1 , slush and a mixture of these.3. A superconducting cable system according to where said superconducting cable joint comprises at least one of a joint-sleeve and a clamp claim 1 , in part being a heat exchanger ensuring a thermal anchor claim 1 , in part being a first means of a regenerative cooling access comprising a prepared interface to a cooling device.4. A superconducting cable system according to where said joint housing comprises at least one diagnostic access facilitating diagnostics.5. A superconducting cable system according to where said superconducting cable joint comprises at least one diagnostic access facilitating diagnostics.6. A superconducting cable system as claimed in where the joint housing provides an electrical connection between said screen/shield and selected from at least one of: Cryostat; ground.7. A superconducting cable system according to where the ...

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Номер записи: 20
14-11-2013 дата публикации

APPARATUS FOR COMPENSATING LONGITUDINAL CHANGES IN SUPERCONDUCTIVE CABLES

Номер: US20130298573A1
Автор: Marzahn Erik, Stemmle Mark
Принадлежит: NEXANS

An apparatus for guiding a cryostat for the compensation of thermal contraction, particularly of a cryostat, which contains along its inner volume a cable core with a superconductor, which particularly preferred is secured stationary to the ends of the cryostat, wherein the cryostat has in a section an arc-shape configuration and is movably guided essentially exclusively perpendicular to its longitudinal axis. 1. Apparatus for guiding a cryostat with a support for receiving the cryostat , wherein the support is arranged in a section of the cryostat having an arc-shaped configuration , and wherein the support is guided so as to be movable perpendicular to the longitudinal axis of the cryostat.2. Apparatus according to claim 1 , wherein the cryostat has in its inner volume a cable core with at least one conductor of superconductive material claim 1 , and the cable core is secured to the ends of the cryostat.3. Apparatus according to claim 1 , wherein the cryostat has a sleeve in the section in which the cryostat is fixed to the support.4. Apparatus according to claim 1 , wherein the support is guided claim 1 , at least on one rail which extends perpendicular to longitudinal axis of the cryostat.5. Apparatus according to claim 1 , wherein the support is movably guided along the rail by means of at least one wheel.6. Apparatus according to claim 5 , wherein the wheel is mounted. at the support claim 5 , and the rail is stationary claim 5 , or the wheel is stationary claim 5 , and the rail is fixed to the support.7. Apparatus according to claim 7 , wherein the support is guided on an arm movable essentially exclusively in a plane arranged perpendicular to the longitudinal axis of the cryostat.8. Apparatus according to claim 7 , wherein the pivot axes of the arm are arranged exclusively parallel to the longitudinal axis of the cryostat.9. Apparatus according to claim 7 , wherein the arm has one or two pivoting devices arranged in parallel planes claim 7 , wherein the ...

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Номер записи: 21
12-12-2013 дата публикации

SUPERCONDUCTING WIRE

Номер: US20130331270A1
Автор: FAN SHOU-SHAN, JIANG KAI-LI, LIN XIAO-YANG
Принадлежит:

A superconducting wire includes a linear superconductor and a carbon nanotube structure. The carbon nanotube structure is located on the linear superconductor. The carbon nanotube structure includes a number of carbon nanotubes joined end to end by van der Waals attractive force between and arranged helically along an axial direction of the linear superconductor 1. A superconducting wire comprising:a linear superconductor; anda carbon nanotube structure located on the linear superconductor, wherein the carbon nanotube structure comprises a plurality of carbon nanotubes joined end to end by van der Waals attractive force and arranged helically along an axial direction of the linear superconductor.2. The superconducting wire of claim 1 , wherein the linear superconductor comprises a linear core and a whorl located on outer surface of the linear core and extending helically around an axial direction of the linear core claim 1 , and a groove is defined along the whorl and extends helically around the axial direction of the linear core.3. The superconducting wire of claim 2 , wherein the whorl and the linear core form an integrated structure.4. The superconducting wire of claim 2 , wherein a width of the whorl is in a range from about 0.5 micrometers to about 5 micrometers.5. The superconducting wire of claim 2 , wherein the carbon nanotube structure is located on the outer surface of the linear core and in the groove claim 2 , and the carbon nanotube structure winds helically around the linear core.6. The superconducting wire of claim 5 , wherein a manner of the carbon nanotube structure winding around the linear core is the same as a manner of the whorl winding around the linear core.7. The superconducting wire of claim 2 , wherein the carbon nanotube structure is located on the whorl.8. The superconducting wire of claim 7 , wherein a length of the carbon nanotube structure is the same as a length of the whorl.9. The superconducting wire of claim 1 , wherein the linear ...

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Номер записи: 22
12-12-2013 дата публикации

SUPERCONDUCTING WIRE

Номер: US20130331271A1
Автор: FAN SHOU-SHAN, JIANG KAI-LI, LIN XIAO-YANG
Принадлежит:

A superconducting wire includes a superconductor layer and a carbon nanotube layer. The superconductor layer and the carbon nanotube layer are stacked on each other and rolled to form the superconducting wire. Thus, the superconductor layer and the carbon nanotube layer are simultaneously rolled and alternately stacked on each other. 1. A superconducting wire comprising:a superconductor layer; anda carbon nanotube layer, wherein the superconductor layer and the carbon nanotube layer are stacked on each other and rolled to form the superconducting wire.2. The superconducting wire of claim 1 , wherein the superconductor layer and the carbon nanotube layer are simultaneously rolled and alternately stacked on each other.3. The superconducting wire of claim 1 , wherein the carbon nanotube layer is an outer layer and the superconductor layer is an inner layer.4. The superconducting wire of claim 1 , wherein the carbon nanotube layer is an inner layer and the superconductor layer is an outer layer.5. The superconducting wire of claim 1 , wherein the superconductor layer and the carbon nanotube layer are wound around a central axis of a cross-section of the superconducting wire.6. The superconducting wire of claim 1 , wherein the carbon nanotube layer comprises a plurality of carbon nanotubes entangled with each other.7. The superconducting wire of claim 1 , wherein the carbon nanotube layer comprises a plurality of carbon nanotubes joined end to end by van der Waals attractive force.8. The superconducting wire of claim 7 , wherein the plurality of carbon nanotubes are arranged to extend substantially along a length direction of the superconducting wire.9. The superconducting wire of claim 7 , wherein the plurality of carbon nanotubes are arranged to helically extend substantially around an axial direction of the superconducting wire.10. The superconducting wire of claim 7 , wherein the plurality of carbon nanotubes are arranged to wind substantially around a central axis ...

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Номер записи: 23
12-12-2013 дата публикации

Superconductor Article with Directional Flux Pinning

Номер: US20130331272A1
Автор: Chen Yimin, Selvamanickam Venkat
Принадлежит:

A method and composition for doped HTS tapes having directional flux pinning and critical current. 1. A superconducting tape structure comprising:a substrate;an overlying buffer; anda superconductor, wherein the superconductor has a critical current retention factor greater than about 90% when a magnetic field of about 0.1 T is applied about parallel to the tape.2. The superconducting tape of wherein the superconductor comprises at least one rare-earth metal chosen from the group consisting of Gd claim 1 , Y claim 1 , Sm claim 1 , Nd claim 1 , Eu claim 1 , Dy claim 1 , Ho claim 1 , Er and Yb.3. The superconducting tape of claim 2 , wherein the superconductor comprises a ratio of at least 1.5 total rare-earth metals to at least 3 copper.4. The superconducting tape of claim 3 , wherein the rare-earth metals content comprises a combination of Sm and Y.5. The superconducting tape of claim 3 , wherein the rare-earth metals content comprises a combination of Gd and Y.6. The superconducting tape of claim 5 , further comprising a ratio of Gd to Y of about 1:1.7. The superconducting tape of claim 2 , comprising at least one dopant selected from the group consisting of Zr claim 2 , Ta claim 2 , Hf claim 2 , Sn claim 2 , Nb claim 2 , Ti and Ce.8. The superconducting tape of claim 7 , wherein the superconductor comprises a dopant to copper ratio of at least about 0.05 dopant to at least about 3 copper.9. The superconducting tape of claim 7 , wherein the dopant comprises Zr.10. The superconducting tape of claim 1 , wherein the superconductor is a conductor formed by metal organic chemical vapor deposition fabrication.11. The superconducting tape of claim 1 , wherein the superconducting tape comprises a critical current retention factor greater than about 50% when a magnetic field of about 0.5 T is applied about parallel to the superconductor.12. The superconducting tape of claim 1 , wherein the superconducting tape comprises a critical current retention factor greater than about ...

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Номер записи: 24
12-12-2013 дата публикации

Method for making superconducting wire

Номер: US20130331273A1
Автор: Kai-Li Jiang, Shou-Shan Fan, xiao-yang Lin
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A method for making superconducting wire is provided. A drawn carbon nanotube film is pulled out from a carbon nanotube array. The drawn carbon nanotube film is placed spaced from and opposite to a number of superconducting preforms on a carrier. The superconducting preforms are moved from the carrier onto the drawn carbon nanotube film by applying an electric field between the drawn carbon nanotube film and the carrier. A composite wire is made by twisting the drawn carbon nanotube film with the superconducting preforms thereon. Finally, the composite wire is sintered.

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Номер записи: 25
12-12-2013 дата публикации

METHOD FOR MAKING SUPERCONDUCTING WIRE

Номер: US20130331274A1
Автор: FAN SHOU-SHAN, JIANG KAI-LI, LIN XIAO-YANG
Принадлежит:

A method for making superconducting wire is provided. A number of superconducting preforms is formed on a carrier. A carbon nanotube layer is placed spaced from and opposite to the carrier. The superconducting preforms are moved from the carrier onto the carbon nanotube layer by applying an electric field between the carbon nanotube layer and the carrier. A composite wire is made by treating the carbon nanotube layer with the superconducting preforms thereon. Finally, the composite wire is sintered. 1. A method for making a superconducting wire , the method comprising:forming a plurality of superconducting preforms on a carrier;placing a carbon nanotube layer spaced from and opposite to the carrier, wherein the plurality of superconducting preforms is between the carbon nanotube layer and the carrier;moving the plurality of superconducting preforms from the carrier onto the carbon nanotube layer by applying an electric field between the carbon nanotube layer and the carrier;forming a composite wire by treating the carbon nanotube layer with the plurality of superconducting preforms thereon; andsintering the composite wire.2. The method of claim 1 , wherein the carrier is a conductive plate or an insulative plate having a conductive film thereon.3. The method of claim 1 , wherein the step of forming the plurality of superconducting preforms comprises spraying or sowing the plurality of superconducting preforms on the carrier.4. The method of claim 1 , wherein the plurality of superconducting preforms are made of superconducting precursors selected from the group consisting of bismuth oxide claim 1 , lanthanum barium copper oxide claim 1 , yttrium barium copper oxide composite claim 1 , thallium barium calcium copper oxide composite claim 1 , copper oxide claim 1 , and gold-indium alloy.5. The method of claim 1 , wherein the carbon nanotube layer is a free-standing structure.6. The method of claim 1 , wherein the step of placing the carbon nanotube layer comprises ...

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Номер записи: 26
19-12-2013 дата публикации

SUPERCONDUCTING CABLE COOLING SYSTEM

Номер: US20130333912A1
Автор: Yamamoto Keiichi
Принадлежит: MAYEKAWA MFG. CO., LTD.

The present invention relates to a superconducting cable cooling system which pumps a coolant for cooling a superconducting cable to a heat exchange section by using a circulation pump, and cools the coolant by a refrigerator. Specifically, the superconducting cable cooling system includes a heat exchange unit having a cooling space charged with a liquefied gas, a flow rate sensor which detects the flow rate of the coolant, a temperature sensor which detects the temperature of the liquefied gas charged in the heat exchange unit, and a control section which controls the refrigerator based on the detected values of the flow rate sensor and the temperature sensor such that the temperature of the liquefied gas charged in the heat exchange unit has a specific value. 1. A superconducting cable cooling system which forms a circulation path by pumping a coolant used for cooling a superconducting cable to a heat exchange section by using a circulation pump , and cooling the coolant by a refrigerator , then supplying the coolant to the superconducting cable , thereby cooling the superconducting cable ,the superconducting cable cooling system comprising:a heat exchange unit which has a cooling space charged with a liquefied gas for causing the heat exchange section and the refrigerator to perform heat exchange;a flow rate detection unit which detects a flow rate of the coolant in the circulation path;a temperature detection unit which detects a temperature of the liquefied gas charged in the heat exchange unit; anda control section which controls the refrigerator based on the flow rate detected by the flow rate detection unit and the temperature detected by the temperature detection unit such that the temperature of the liquefied gas charged in the heat exchange unit has a specific value.2. The superconducting cable cooling system according to claim 1 , wherein the refrigerator is a Brayton cycle refrigerator having a Brayton cycle heat exchange section disposed in the cooling ...

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Номер записи: 27
26-12-2013 дата публикации

NbTi superconductor with peripherally distributed Al block for weight reduction

Номер: US20130345062A1
Автор: Szulczyk Andreas
Принадлежит:

A superconducting wire (), contains NbTi superconducting material and Cu, with one enclosing tube (), in particular, a copper enclosing tube. At least three Al blocks (-) are disposed peripherally distributed in the enclosing tube () and at least three sections containing NbTi (-) are also disposed peripherally distributed in the enclosing tube () and separate the Al blocks (-) from one another in the peripheral direction. The Al blocks (-) each make large-surface contact with their adjacent sections containing NbTi (-). A stabilized NbTi superconducting wire is thereby provided, which has low weight and which can be manufactured at low cost. The superconducting wire has a reduced risk of crack formation, in particular, during wire drawing. 1. A superconducting wire comprising:an enclosing tube;at least three Al blocks disposed peripherally distributed in said enclosing tube; andat least three sections containing NbTi, said at least three sections also being disposed peripherally distributed in said enclosing tube, wherein said at least three sections thereby separate said Al blocks from one another in a peripheral direction, said Al blocks each making large-surface contact with adjacent said sections containing NbTi.2. The superconducting wire of claim 1 , wherein said enclosing tube is a Cu enclosing tube.3. The superconducting wire of claim 1 , wherein said sections containing NbTi are constituted by one or more deep-hole drilled Cu blocks claim 1 , wherein NbTi structures claim 1 , which each contain one or more NbTi filaments claim 1 , are inserted into holes of one or more Cu blocks.4. The superconducting wire of claim 3 , wherein said sections containing NbTi are constituted by only one deep-hole drilled Cu block claim 3 , wherein said Cu block has at least three grooves extending radially inward claim 3 , each of which contains one said Al block.5. The superconducting wire of claim 3 , wherein said sections containing NbTi are each constituted by one deep- ...

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Номер записи: 28
09-01-2014 дата публикации

SUPERCONDUCTOR TRANSMISSION LINES HAVING JOINT LN2 AND THERMOELECTRIC COOLING

Номер: US20140011684A1
Автор: JETTER NEIL ROBERT
Принадлежит:

A high temperature superconductor (HTS) transmission line for transporting electricity includes a plurality of HTS wires coupled to receive and transport electricity. A cooling system is thermally coupled by a thermally conductive coupling material to the plurality of HTS wires and includes a plurality of joint coaxial cooling arrangements each including a thermoelectric (TE) cooler radially outside a inner liquid nitrogen (LN2) cooler. The TE coolers are powered by electricity flowing along the plurality of HTS wires. The TE cooler cools the outer portion of the joint coaxial cooling arrangement to an intermediate temperature that is above a target controlled temperature, and the LN2 cooler cools from the intermediate temperature to a temperature at or below the target controlled temperature. 1. A high temperature superconductor (HTS) transmission line for transporting electricity , comprising:a plurality of HTS wires coupled to receive and transport said electricity, anda cooling system thermally coupled by a thermally conductive coupling material to said plurality of HTS wires comprising a plurality of joint coaxial cooling arrangements,wherein said joint coaxial cooling arrangements each include a thermoelectric (TE)-based cooler radially outside an inner liquid nitrogen (LN2) cooler, andwherein said TE-based coolers are powered by said electricity flowing along said plurality of HTS wires.2. The HTS transmission line of claim 1 , wherein said TE-based coolers further comprise a plurality of temperature sensors disposed proximate to said plurality of HTS wires claim 1 , and a switch claim 1 , and wherein a signal from said temperature sensors is for controlling a flow of current from said plurality of HTS wires supplied to respective ones of said TE-based coolers.3. The HTS transmission line of claim 1 , wherein said TE-based coolers provide cooling for said joint coaxial cooling arrangements to an intermediate temperature that is above a target controlled ...

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Номер записи: 29
23-01-2014 дата публикации

SUPERCONDUCTING JOINTS

Номер: US20140024534A1
Автор: "LAKRIMI MHamed", Noys Jonathan, Simpkins Michael, Thomas Adrian Mark
Принадлежит:

A superconducting joint and a cooling surface are provided as a combination. The superconducting joint joins superconducting wires each comprising superconducting filaments electrically joined together. The cooling surface comprises a thermally and electrically conductive material. An electrically isolating surface coating is provided on the cooling surface. The superconducting joint, the surface coating and the cooling surface are in thermal contact. The superconducting joint is electrically isolated from the cooling surface by the surface coating. The tails of the superconducting wires are wrapped around the electrically isolating surface coating. 1. A combination , comprising:a superconducting joint joining superconducting wires joining each comprising superconducting filaments electrically joined together and tails of the superconducting wires being parts of the wires leading to the joint;a cooling surface comprising a thermally and electrically conductive material;an electrically isolating surface coating provided on the cooling surface;the superconducting joint, the surface coating and the cooling surface being in thermal contact;the superconducting joint being electrically isolated from the cooling surface by the surface coating;the cooling surface being a cryogen pipe;the electrically isolating surface coating being provided on a surface of the cryogen pipe serving as the cooling surface; andthe tails being wrapped around the electrically isolating surface coating.2. The combination according to wherein the joint comprises a joint cup containing a superconducting material in which exposed filaments of the superconducting wires are embedded.3. The combination according to wherein the electrically isolating surface coating comprises one of:a sprayed deposition of aluminum oxide or ceramic,a layer of copper oxide on a copper cooling surface,a layer of aluminum oxide on an aluminum cooling surface, anda layer of epoxy resin.4. The combination according to ...

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Номер записи: 30
23-01-2014 дата публикации

SUPERCONDUCTING WIRE ROD MANUFACTURING APPARATUS, AND METHOD OF MANUFACTURING THE SAME

Номер: US20140024535A1
Автор: IINO Daiki
Принадлежит: KABUSHIKI KAISHA TOSHIBA

A manufacturing apparatus which manufactures a superconducting wire rod, includes first, second, and third chambers which are connected in series, an exhaust device which exhaust air from the first to third chambers, a carrier device which carries a substrate such that the substrate passes through the first to third chambers in this order, a first film formation device which forms a metal layer on the substrate in the first chamber, a first gas supply device which supplies oxidation gas to the second chamber to oxidize a surface of the metal layer, and a second film formation device which forms an oxide layer on the metal layer, the surface of which has been oxidized, in the third chamber. 1. A manufacturing apparatus which manufactures a superconducting wire rod , comprising:first, second, and third chambers which are connected in series;an exhaust device which exhaust air from the first to third chambers;a carrier device which carries a substrate such that the substrate passes through the first to third chambers in this order;a first film formation device which forms a metal layer on the substrate in the first chamber;a first gas supply device which supplies oxidation gas to the second chamber to oxidize a surface of the metal layer; anda second film formation device which forms an oxide layer on the metal layer, the surface of which has been oxidized, in the third chamber.2. The manufacturing apparatus according to claim 1 , further comprising:a second gas supply device which supplies inert gas to the first to third chambers,wherein the exhaust device is connected to the third chamber, and the first and second gas supply devices supply the oxidation gas and the inert gas, respectively, such that the gases flow from the first chamber to the third chamber.3. The manufacturing apparatus according to claim 2 , further comprising:a controller which controls operation of the first and second gas supply devices such that the gases flow from the first chamber to the ...

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Номер записи: 31
30-01-2014 дата публикации

TERMINAL CONNECTING PART OF SUPERCONDUCTING CABLE

Номер: US20140027141A1
Автор: Hirata Hirao, Mitsuhashi Takaharu, Mukoyama Shinichi, Nomura Tomoya, Yagi Masashi, Yonemura Tokui
Принадлежит:

A terminal connecting part has: a low temperature container which is filled with a cooling medium; a conductor current lead which has one end immersed in the cooling medium and the other end led to a normal temperature part; and a conductor movable connecting terminal which electrically connects a superconductive conductor layer and the conductor current lead of a superconducting cable. The superconductive conductor layer of the superconducting cable which is stripped stepwise from a front end is connected to the conductor current lead through the conductor movable connecting terminal. The cable core of the superconducting cable is movable in a longitudinal direction and is rotatable in a circumferential direction while maintaining electrical connection between the superconductive conductor layer and the conductor current lead. The cable core is horizontally supported in the low temperature container. 1. A terminal connecting part of a superconducting cable in which a cable core comprising a former and a superconductive conductor layer is housed in a thermal insulation tube , the terminal connecting part comprising:a low temperature container which is filled with a cooling medium;a conductor current lead, one end of the current lead is immersed in the cooling medium and an other end is led to a normal temperature part; anda conductor movable connecting terminal which electrically connects the superconductive conductor layer and the conductor current lead, whereinthe superconductive conductor layer of the superconducting cable which is stripped stepwise from a front end is connected to the conductor current lead through the conductor movable connecting terminal,the cable core of the superconducting cable is movable in a longitudinal direction and is rotatable in a circumferential direction while maintaining electrical connection between the superconductive conductor layer and the conductor current lead,the conductor movable connecting terminal is connected to the ...

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Номер записи: 32
06-02-2014 дата публикации

ARRANGEMENT WITH AT LEAST ONE SUPERCONDUCTIVE CABLE

Номер: US20140038827A1
Автор: Di Palma Michele, Lange Stephan, Schippl Klaus, Stemmle Mark
Принадлежит:

An arrangement is provided with at least one superconductive cable and a cryostat surrounding the cable is disclosed. The cryostat includes at least one thermally insulated pipe which encloses the superconductive cable and a hollow space for conducting a cooling agent therethrough. The cryostat is constructed in the same manner as the superconductive cable located in the cryostat for connection to stationary parts of a transmission path for electrical energy. At each of the ends of the cryostat (KR) constructed for connection to the stationary parts of the transmission path, two spaced apart bellows are mounted in the cryostat (KR), and between the two bellows each of the two ends of the cryostat (KR) a thermally insulated and curved pipe piece is mounted belonging to the cryostat (KR). 1. Arrangement comprising:at least one superconductive cable; anda cryostat surrounding the cable,wherein the cryostat has at least one thermally insulated pipe which encloses the superconductive cable and a hollow space for conducting a cooling agent therethrough,wherein the cryostat, in the same manner as the superconductive cable located in the cryostat, is constructed for connection to stationary parts of a transmission path for electrical energy,wherein at each of the ends of the cryostat constructed for connection to the stationary parts of the transmission path, at least two bellows are mounted at a distance from each other in the cryostat, andwherein between the two bellows of each of the two ends of the cryostat, a thermally insulated and curved pipe piece belonging to the cryostat is mounted.2. Arrangement according to claim 1 , wherein the pipe piece is bent between the two bellows by 180° or approximately 180°.3. Arrangement according to claim 1 , wherein the pipe piece is constructed as a section of at least one smooth pipe.4. Arrangement according to claim 1 , wherein the pipe piece is constructed as at least one flexible pipe. This application claims the benefit of ...

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Номер записи: 33
06-02-2014 дата публикации

SUPERCONDUCTING THIN FILM MATERIAL AND METHOD OF MANUFACTURING SAME

Номер: US20140038829A1
Автор: Hanafusa Kei, HONDA Genki, NAGAISHI Tatsuoki, NAKANISHI Tsuyoshi, OHKI Kotaro, Taneda Takahiro
Принадлежит: Sumitomo Electric Industries, Ltd.

A superconducting thin film material exhibiting excellent superconducting properties and a method of manufacturing the same are provided. A superconducting thin film material includes a substrate, and a superconducting film formed on the substrate. The superconducting film includes an MOD layer formed by an MOD process, and a gas-phase-formed layer formed on the MOD layer by a gas-phase process. Since the MOD layer is formed first and then the gas-phase-formed layer is formed in this manner, degradation of the properties of the gas-phase-formed layer due to heat treatment in the step of forming the MOD layer (heat treatment in the MOD process) can be prevented. 1. A superconducting thin film material comprising:a substrate; anda superconducting film formed on said substrate,said superconducting film including an MOD layer formed by an MOD process, and a gas-phase-formed layer formed on said MOD layer by a gas-phase process.2. The superconducting thin film material according to claim 1 , further comprising an intermediate layer between said substrate and said superconducting film.3. The superconducting thin film material according to claim 1 , whereinsaid superconducting film is formed on two opposite main surfaces of said substrate.4. The superconducting thin film material according to claim 1 , whereina plurality of structures each formed of a combination of said MOD layer and said gas-phase-formed layer are stacked in said superconducting film.5. The superconducting thin film material according to claim 1 , whereinsaid MOD layer has a thickness of not more than 1 μm.6. The superconducting thin film material according to claim 1 , whereinsaid gas-phase-formed layer has a thickness of not more than 2 μm.7. The superconducting thin film material according to claim 1 , whereinsaid MOD process is a non-fluorine-containing MOD process in which a fluorine-containing organometallic salt solution is not used.8. A method of manufacturing a superconducting thin film material ...

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Номер записи: 34
20-02-2014 дата публикации

SYSTEM WITH A THREE PHASE SUPERCONDUCTIVE ELECTRICAL TRANSMISSION ELEMENT

Номер: US20140051581A1
Автор: Stemmle Mark, West Beate
Принадлежит: NEXANS

A system with a three phase superconductive electrical transmission element is indicated, in which three superconductive electrical phase conductors are arranged insulated relative to each other and concentrically relative to each other, and in which a thermally insulated tubular cryostat is arranged which has a free space for conducting a cooling medium therethrough. The transmission element has at least two identically constructed cables (K K), each of which has three electrical phase conductors (L L L) which are insulated relative to each other and arranged concentrically relative to each other. The phase conductors (L L L) of the two cables (K K) are electrically switched in parallel in such a way that always one phase conductor of the one cable is connected to the phase conductor of the other cable. 1. A system comprising:a three phase superconductive electrical transmission. element, in which three superconductive electrical phase conductors are arranged insulated relative to each other and concentrically relative to each other; andsaid three phase superconductive element arranged in a thermally insulated, tubular cryostat which has a free space for conducting a cooling medium therethrough, whereinthe transmission element has at least two identically constructed cables, where each of the cables has three superconductive electrical phase conductors arranged insulated relative to each and concentrically relative to each other, andwherein the phase conductors of the two cables are switched electrically in parallel in such a way that always one phase conductor of the one cable is connected to a phase conductor of the other cable.2. System according to claim 1 , wherein the transmission element is constructed of three cables.3. System according to claim 2 , wherein the phase conductors of the three cables are each connected electrically conductively with cyclical location exchange to each other such that the inner phase conductor of a first cable is connected to ...

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Номер записи: 35
20-02-2014 дата публикации

ARRANGEMENT WITH AT LEAST ONE SUPERCONDUCTIVE CABLE

Номер: US20140051582A1
Автор: Schmidt Frank, Stemmle Mark
Принадлежит:

An arrangement with at least one superconductive cable () and a first cryostat (K) surrounding the cable. A second cryostat (K) is formed around the first cryostat (K) coaxially with and at a distance from the first cryostat (K) for conducting a second cooling agent therethrough. The second cryostat (K) is composed of two pipes () which are arranged coaxially and at a distance from each other and, where a thermal insulation () is enclosed between the pipes, and where during operation of the arrangement a liquefied gas, having a temperature of 112K or less, is conducted through the cryostat (K). 1. Superconductive arrangement comprising:at least one superconductive cable; anda first cryostat surrounding the superconductive cable for conducting a first cooling agent therethrough, said first cryostat being composed of at least one thermally insulated pipe which encloses a hollow space over its entire length in which the superconductive cable is arranged and through which the first cooling agent is conducted during operation of the arrangement,wherein magnesium diboride is used as the superconductive material,wherein a liquid or gaseous cooling agent cooled to a temperature of 39K or lower is used as the first cooling agent, andwherein a second cryostat is arranged coaxially around the first cryostat, and at a distance from the first cryostat,wherein a thermal insulation is formed. around the first cryostat for conducting a second cooling agent therethrough,wherein the second cryostat is composed of two pipes arranged coaxially relative to each other and at a distance from each other, and wherein the pipes enclose a thermal insulation therebetween and through which during operation of the arrangement a liquefied gas, having a temperature of 112K or less, is conducted.2. Arrangement according to claim 1 , wherein helium gas is used as the first cooling agent.3. Arrangement according to claim 1 , wherein a high voltage proof insulation is arranged in the intermediate ...

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Номер записи: 36
27-02-2014 дата публикации

INSULATION FOR A CRYOGENIC COMPONENT

Номер: US20140057068A1
Автор: Fair Ruben
Принадлежит: GE Energy Power Conversion Technology Ltd

Insulation for a cryogenic component is described. The insulation includes an inner portion formed of a multi-layer insulating material comprising alternating layers of metalized polymer film and polymer netting. An outer supporting mesh surrounds the inner portion and is formed of stainless steel. The insulation is particularly suitable for insulating cryogenic components that move during operation since the supporting mesh acts to support the inner portion against damage caused by forces resulting from motion of the cryogenic component. 1. Insulation for a cryogenic component comprising:an inner portion formed of a multi-layer insulating material comprising alternating layers of metalized polymer film and polymer netting; andan outer supporting mesh formed of stainless steel substantially surrounding the inner portion.2. Insulation according to claim 1 , wherein the multi-layer insulating material comprises alternating layers of aluminised biaxially-oriented polyethylene terephthalate and polyester net.3. Insulation of claim 1 , further comprising adhesive tape for holding the inner portion in position around the cryogenic component.4. Insulation of claim 3 , wherein the adhesive tape is aluminised biaxially-oriented polyethylene terephthalate tape.5. Insulation of claim 1 , further comprising a plurality of spacers formed of bands of low thermal conductivity material for spacing the inner portion from the surface of the cryogenic component.6. Insulation of claim 5 , wherein the spacers are formed of glass reinforced plastic.7. Insulation of claim 5 , wherein the spacers are formed of carbon reinforced plastic.8. Insulation of claim 1 , further comprising wire ties for holding the supporting mesh around the portion.9. Insulation of claim 8 , wherein the wire ties are formed of stainless steel.10. A method of insulating a cryogenic component comprising the steps of:surrounding the cryogenic component with an inner portion formed of a multi-layer insulating material ...

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Номер записи: 37
06-03-2014 дата публикации

Mgb2 superconducting multi-core wires, superconducting cables, and superconducting magnets

Номер: US20140066313A1
Автор: Kazuhide Tanaka, Motomune Kodama, Yota Ichiki
Принадлежит: HITACHI LTD

The present invention provides a MgB 2 multi-core wire including a plurality of MgB 2 single-core wires having a MgB 2 superconducting core part and a metal sheath part the metal sheath part is provided on the outer surface of the MgB 2 superconducting core part, wherein a plurality of the MgB 2 single-core wires is bound with each other, and a gap is provided between a plurality of the MgB 2 single-core wires, and a refrigerant for flowing in the gap in a direction of a longitudinal axis of the MgB 2 single-core wires.

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Номер записи: 38
06-03-2014 дата публикации

COATED HIGH-TEMPERATURE SUPERCONDUCTING WIRE AND HIGH-TEMPERATURE SUPERCONDUCTING COIL INCLUDING THE SAME

Номер: US20140066314A1
Автор: Kamibayashi Hiroyuki, Maeda Hideaki, Nakagome Hideki, Oobuchi Keita, TAKAHASHI Masato, Yanagisawa Yoshinori
Принадлежит:

In a coated high-temperature superconducting wire in which a superconducting yttrium-based wire (high-temperature superconducting wire) having a rectangular cross section is coated by an insulating layer , the insulating layer is an electrodeposited film made of block copolymerized polyimide which contains siloxane bonds in a polyimide main chain and which has molecules with anionic groups. A coil formed from the superconducting yttrium-based wire is impregnated with epoxy resin, and the epoxy resin is cured. The coil is configured such that the epoxy resin is completely separated from the superconducting yttrium-based wire by the insulating layer 1. A coated high-temperature superconducting wire comprising:a high-temperature superconducting wire covered by an insulating layer,wherein the high-temperature superconducting wire has a rectangular cross section, andthe insulating layer is an electrodeposited film made of polyimide.2. The coated high-temperature superconducting wire of claim 1 , whereinthe insulating layer is an electrodeposited film made of block copolymerized polyimide containing a siloxane bond in a polyimide main chain and having a molecule with an anionic group.3. The coated high-temperature superconducting wire of claim 1 , whereinthe high-temperature superconducting wire is a ReB CO wire.4. The coated high-temperature superconducting wire of claim 1 , whereinthe insulating layer substantially uniformly covers part or all of an outer periphery of the high-temperature superconducting wire including a corner part thereof.5. The coated high-temperature superconducting wire of claim 1 , whereinthe high-temperature superconducting wire is a multilayer structure in which an oxide high-temperature superconducting layer is formed on a tape-shaped metal substrate with an intermediate layer being interposed therebetween, and a stabilization layer is formed on the oxide high-temperature superconducting layer.6. The coated high-temperature superconducting wire ...

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Номер записи: 39
20-03-2014 дата публикации

ARRANGEMENT FOR ELECTRICALLY CONDUCTIVELY CONNECTING TWO SUPERCONDUCTIVE CONDUCTORS

Номер: US20140080713A1
Автор: Soika Rainer, Stemmle Mark
Принадлежит:

An arrangement for electrically conductively connecting two superconductive strip-shaped electrical conductors () having at least approximately the same width, where the two conductors () rest against each other with their end faces against each other in a connecting point (V). A strip () of superconductive material is soldered to the two conductors (), where the strip extends beyond both conductors so as to cover the connecting point (V). A strip () is used which has, only in the area of the connecting point (V) between the two conductors (), at least approximately the same width as the conductors, and where the strip narrows on both sides of the connecting point (V) and facing away from the connecting point (V). 1. Arrangement for electrically conductively connecting two superconductive strip-shaped electric lines having approximately the same width , where the two conductors rest against each other with their end faces in a connecting point , and where a strip of superconductive material is soldered to both conductors , where the strip extends beyond both conductors so as to cover the connecting point , said arrangement comprises:said strip of superconductive material has, only in the area of the connecting point between the two conductors, at least approximately the same width as conductors, and that on both sides of the connecting point the strip narrows facing away from the connecting point.2. Arrangement according to claim 1 , wherein the ends of the strip are rounded.3. Arrangement according to claim 1 , wherein the strip symmetrically narrows preferably in accordance with a conical pattern relative to the center line of the conductors.4. Arrangement according to claim 1 , wherein the strip is constructed thinner in its border areas than in its central area located in the area of the center line of the conductors.5. Arrangement according to claim 4 , wherein the strip is constructed thinner in its border areas than in its central area located in the area of ...

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Номер записи: 40
10-04-2014 дата публикации

Method for producing a superconducting wire, in particular using lead-free solder

Номер: US20140100117A1
Автор: Prause Burkhard, Szulczyk Andreas, Thoener Manfred
Принадлежит:

A method for producing a superconducting wire (), wherein an internal wire (), which contains superconducting filaments (), is provided with a normally conducting stabilizing structure (), is characterized in that, in a continuous or quasi-continuous process, one or more sheath elements () are shaped and/or placed around the internal wire (), so that the entire circumference of the internal wire () is enclosed by one or more sheath elements (), and all seams () of sheath element ends (--) facing each other are soldered and/or welded. A method for producing a superconducting wire is thereby provided, which restricts the cross section of the superconducting wire to a lesser extent and which permits the use of lead-free solder. 1. A method for producing a superconducting wire , wherein an internal wire that contains superconducting filaments is provided with a normally conducting stabilizing structure , the method comprising the steps of:a) shaping and/or placing, in a continuous or quasi-continuous process, one or more sheath elements around the internal wire, so that an entire circumference of the internal wire is enclosed by the one or more sheath elements; andb) soldering and/or welding all seams of sheath element ends which face each other.2. The method of claim 1 , wherein claim 1 , in the continuous or quasi-continuous process claim 1 , one or more sheath elements are selected and shaped and/or placed around the internal wire in such a way that claim 1 , seen in cross section claim 1 , at least sections of all seams of the sheath element ends facing each other are oblique with respect to a local internal wire surface and oblique with respect a local sheath element surface.3. The method of claim 2 , wherein claim 2 , seen in cross section claim 2 , all seams having at least sections that are oblique with respect to the local internal wire surface and oblique with respect to the local sheath element surface are each at least twice as long as a thickness of the ...

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Номер записи: 41
10-04-2014 дата публикации

METHOD FOR CONTINUOUSLY FORMING SUPERCONDUCTING WIRE AND PRODUCTS THEREFROM

Номер: US20140100118A1
Автор: Doll David D., Rindfleisch Matthew, Thong Chee June, Tomsic Michael J., Wells Justin, Wieber Trent, Yue Hoong Pak Jinji
Принадлежит: HYPER TECH RESEARCH, INC.

A device and method for continuously forming superconducting wire, and products made therefrom. The method may include providing at least one continuous metal sheathing strip and at least one metal form, continuously forming the at least one continuous metal sheathing strip to form a partially open configuration, continuously filling the partially open configuration with magnesium diboride precursor comprising boron, and a metal form, and closing the partially open configuration thereby enclosing the magnesium diboride precursor comprising boron, and a metal form, to form a closed configuration. Subsequent reduction in diameter and elongation in length of the closed configuration, followed by heat treatment, catalyzes the transformation of the magnesium diboride precursor comprising boron, and the metal form, to magnesium diboride to form the superconducting wire. 1. A method for continuously forming superconducting wire , comprising the steps of;{'b': 100', '200, 'a. providing at least one continuous metal sheathing strip () and at least one metal form ();'}{'b': 100', '300', '110', '122', '124', '110, 'b. continuously forming the at least one continuous metal sheathing strip () by applying a metal sheathing strip conforming means () to form a metal sheathing strip partially open configuration () having a metal sheathing strip first edge () and a metal sheathing strip second edge () to form a metal sheathing strip partially open configuration () partially enclosing a precursor volume;'}{'b': 400', '200, 'c. continuously filling the open precursor volume with at least one magnesium diboride precursor () comprising boron, and the metal form ();'}{'b': 110', '300', '130, 'd. closing the metal sheathing strip partially open configuration () by applying a metal sheathing strip conforming means () to form a metal sheathing strip closed configuration () enclosing the precursor volume;'}{'b': 130', '130, 'e. deforming the metal sheathing strip closed configuration () to ...

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Номер записи: 42
06-01-2022 дата публикации

INSULATION-COATED COMPOUND SUPERCONDUCTING WIRE AND REWINDING METHOD THEREOF

Номер: US20220005632A1
Автор: II Hideki, KATAYAMA Kota, Sugimoto Masahiro, TSUBOUCHI Hirokazu
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

An insulation-coated compound superconducting wire includes a compound superconducting wire having a compound superconducting part which includes a first matrix and a plurality of compound superconducting filaments containing compound superconducting phases, a reinforcing part disposed on the outer circumferential side of the compound superconducting part and includes a plurality of reinforced filaments, a second matrix and a second stabilizing material. A stabilizing part is disposed on at least one side among the inner circumferential side and the outer circumferential side of the reinforcing part. An electrical insulation part covers the outer circumferential surface of the compound superconducting wire, in which the insulation-coated compound superconducting wire has a critical current value (Ic) larger than that of the compound superconducting wire before being covered with the electrical insulation part. 1. An insulation-coated compound superconducting wire , comprising:a compound superconducting wire comprising a core-like compound superconductor part, a cylindrical reinforcing part, and a cylindrical stabilizing part; andan electric insulation part coating an outer circumferential surface of the compound superconducting wire,wherein the core-like compound superconductor part comprises a plurality of compound superconducting filaments and a first matrix, the compound superconducting filaments each comprising a compound superconducting phase, the first matrix comprising the plurality of compound superconducting filaments embedded therein and a first stabilizing material,wherein the cylindrical reinforcing part is disposed on an outer circumferential side of the compound superconductor part, and comprises a plurality of reinforcing filaments and a second matrix, the second matrix comprising the plurality of reinforcing filaments embedded therein and a second stabilizing material,wherein the cylindrical stabilizing part is disposed on at least one side of an ...

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Номер записи: 43
13-01-2022 дата публикации

PROCESSES, SYSTEMS AND DEVICES FOR METAL FILLING OF HIGH TEMPERATURE SUPERCONDUCTOR CABLES

Номер: US20220013256A1
Автор: BECK William, BURKE William, HUBBARD Amanda, IRBY James, MURRAY Richard, PFEIFFER Andrew, TOLAND Thomas, VIEIRA Rui
Принадлежит:

Techniques described herein relate to systems and methods for obtaining a high temperature superconducting (HTS) cable assembly and filling the HTS cable assembly with a molten metal, such as solder. 113-. (canceled)14. A vacuum-pressure impregnation (VPI) station for filling a cable assembly containing high temperature superconducting (HTS) material with a molten metal , the station comprising:a) a can configured to hold a source of molten metal;b) one or more heaters arranged to heat an HTS cable assembly, the HTS cable assembly comprising at least one of a tube or a former having at least one channel formed or otherwise provided therein and having HTS material disposed in at least one of the at least one channel of the tube or the former;c) pressure applying means, coupled to the can, for applying pressure to molten metal in the can so as to force the molten metal from the can through the at least one channel of the tube or former, andd) a siphon coupled to the can arranged at a height greater than a height of the molten metal in the can to inhibit flow of the molten metal from the can when the pressure applying means is inactive.15. A vacuum-pressure impregnation (VPI) station for filling a cable assembly containing high temperature superconducting (HTS) material with a molten metal , the station comprising:a) a can configured to hold a source of molten metal;b) one or more heaters arranged to heat an HTS cable assembly, the HTS cable assembly comprising at least one of a tube or a former having at least one channel formed or otherwise provided therein and having HTS material disposed in at least one of the at least one channel of the tube or the former;c) pressure applying means, coupled to the can, for applying pressure to molten metal in the can so as to force the molten metal from the can through the at least one channel of the tube or former, andd) comprising a plurality of contact sensors configured to monitor the flow of metal from the can into the at ...

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Номер записи: 44
07-01-2021 дата публикации

Extremely Low Resistance Films and Methods for Modifying or Creating Same

Номер: US20210005354A1
Автор: Cale Timothy S., Gilbert Douglas J.
Принадлежит: Ambature, Inc.

Operational characteristics of an extremely low resistance (“ELR”) film comprised of an ELR material may be improved by depositing a modifying material onto appropriate surfaces of the ELR film to create a modified ELR film. In some implementations of the invention, the ELR film may be in the form of a “c-film.” In some implementations of the invention, the ELR film may be in the form of an “a-b film,” an “a-film” or a “b-film.” The modified ELR film has improved operational characteristics over the ELR film alone or without the modifying material. Such operational characteristics may include operating in an ELR state at increased temperatures, carrying additional electrical charge, operating with improved magnetic properties, operating with improved mechanic properties or other improved operational characteristics. In some implementations of the invention, the ELR material is a mixed-valence copper-oxide perovskite, such as, but not limited to YBCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium. 1. A method for improving operational characteristics of an ELR film , the ELR film comprising an ELR material having a crystalline structure , the method comprising:layering a modifying material onto an appropriate surface of the ELR film to create a modified ELR film, wherein the modified ELR film has improved operational characteristics over those of the ELR film without the modifying material.240-. (canceled) The application is a continuation of U.S. patent application Ser. No. 15/167,535, entitled “Extremely Low Resistance Films and Method for Modifying or Creating Same,” filed on May 27, 2016; and this application is a continuation-in-part application of U.S. patent application Ser. No. 15/167,556, entitled “High Temperature Superconducting Films and Methods for Modifying and Creating Same,” filed on May 27, 2016. Each of the applications referenced in this ...

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Номер записи: 45
07-01-2021 дата публикации

SUPERCONDUCTING CABLE AND INSTALLATION METHOD OF THE SAME

Номер: US20210005355A1
Автор: KANDA Masae, Kojima Takayuki, Yamaguchi Sataro
Принадлежит: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION

When bending a superconducting cable of a stack conductor structure in which a plurality of layers of tape wires are stacked, a twisting process is performed for the superconducting cable immediately before a bending portion of the superconducting cable. 1. A superconducting cable installation method comprising:when bending a superconducting cable of a stacked structure in which a plurality of layers of tape wires are stacked, performing a twisting process for the superconducting cable, immediately before a bending portion of the superconducting cable; andbending the superconducting cable at the bending portion.2. The superconducting cable installation method according to claim 1 , wherein the superconducting cable has anisotropy with respect to ease of bending between a direction parallel to a stacking surface of the tape wires and other directions claim 1 , and wherein the method comprises:when bending the superconducting cable in a direction in which superconducting cable is difficult to bend, performing the twisting process for the superconducting cable immediately before the bending portion, and bending the superconducting cable at the bending portion; andtwisting the superconducting cable in an opposite direction, when twisting the superconducting cable subsequently.3. The superconducting cable installation method according to claim 1 , comprising:causing a straight line portion of the superconducting cable to be housed in a straight-pipe thermally insulated double pipe including an inner pipe and an outer pipe surrounding the inner pipe with a space between the inner pipe and the outer pipe made vacuum; andcausing the bending portion of the superconducting cable to be housed in a bellows pipe that is connected to a straight pipe end portion of the thermally insulated double pipe.4. The superconducting cable installation method according to claim 3 , wherein the outer pipe includes a lithium-magnesium alloy claim 3 , andthe inner pipe includes a stainless pipe ...

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Номер записи: 46
07-01-2021 дата публикации

SUPERCONDUCTIVE CABLE

Номер: US20210005356A1
Автор: ISHIHARA Atsushi, Tomita Masaru
Принадлежит: RAILWAY TECHNICAL RESEARCH INSTITUTE

A superconducting cable () includes a superconducting cable core () and a corrugated pipe () storing the superconducting cable core (). The superconducting cable core () has a corrugated pipe (), a superconductor () provided on the outer peripheral side of the corrugated pipe (), and a heat insulating pipe () stored in the corrugated pipe () and having a smooth inner peripheral surface. A coolant flows through a flow passage (FP) formed in the heat insulating pipe () and then flows through a flow passage (FP) formed between an outer peripheral surface of the corrugated pipe () and an inner peripheral surface of the corrugated pipe (). 1. A superconducting cable comprising a superconducting cable core and a storage pipe part storing the superconducting cable core , whereinthe superconducting cable core includesa first corrugated pipe,a superconductor provided on the outer peripheral side of the first corrugated pipe, anda first heat insulating pipe that is stored in the first corrugated pipe, has a smooth inner peripheral surface, and is made of a first heat insulating material,a first flow passage through which a coolant for cooling the superconducting cable core flows is formed in the first heat insulating pipe,a second flow passage through which the coolant flows is formed between an outer peripheral surface of the first corrugated pipe and an inner peripheral surface of the storage pipe part,the coolant flows through the first flow passage from the first side toward the side opposite to the first side in a length direction of the superconducting cable core, andthe coolant after flowing through the first flow passage flows through the second flow passage from the side opposite to the first side toward the first side in the length direction of the superconducting cable core.2. The superconducting cable according to claim 1 , whereinthe flexibility of the first heat insulating pipe is higher than the flexibility of the first corrugated pipe.3. The superconducting ...

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Номер записи: 47
02-01-2020 дата публикации

SUPERCONDUCTING POWER CABLE SYSTEM

Номер: US20200005968A1
Автор: VAN DER LAAN Daniël Cornelis
Принадлежит:

A superconducting power cable system includes a superconducting power cable in a first temperature environment separated from a second temperature environment by a thermal barrier. The first temperature environment is an interior of a cryostat and is at a lower temperature than the second temperature environment located outside of the cryostat. At least one superconducting feeder cable has a first end electrically coupled to the superconducting power cable in the first temperature environment, and a second end electrically coupled to a normal conducting current lead in the second temperature environment. Each superconducting feeder cable is a flexible superconducting cable or wire formed of multiple superconducting tapes that are wound in a helical fashion and in multiple layers around a round former. 1. A superconducting power cable system comprising:a superconducting power cable ina first temperature environment;a thermal barrier separating the first temperature environment from a second temperature environment, the second temperature environment being at a higher temperature than the first temperature environment, the second temperature being low enough to sustain superconductivity;at least one superconducting feeder cable having a first end electrically coupled to the superconducting power cable in the first temperature environment, each superconducting feeder cable having a second end electrically coupled to a normal conducting current lead in the second temperature environment, to receive current injected into the superconducting feeder cable in the second temperature environment such that at least a majority of the current enters the first temperature environment in the superconducting state.2. A system as recited in claim 1 , wherein the first temperature environment comprises an interior of a cryostat claim 1 , and wherein the thermal barrier comprises a wall of the cryostat.3. A system as recited in claim 1 , wherein the second temperature environment ...

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Номер записи: 48
15-01-2015 дата публикации

3-coaxial superconducting power cable and cable's structure

Номер: US20150014019A1
Автор: In Keun YU, Min Won Park, Sang Jin Lee, Sun Kyoung HA, Sung Kyu Kim
Принадлежит: UIDUK University Industry-Academic Cooperation Foundation

Provided are a three-phase coaxial superconducting power cable and a structure thereof. A certain space is formed between adjacent superconducting wires of a superconducting layer (disposed at an outer portion) having more superconducting wires among a plurality of superconducting layers, and another wire is disposed in the space, or the superconducting wires of the respective superconducting layers are disposed to have different critical currents. Accordingly, a waste of superconducting wires is prevented, and the optimized three-phase coaxial superconducting power cable is provided.

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Номер записи: 49
14-01-2021 дата публикации

DC-CAPABLE CRYOGENIC MICROWAVE FILTER WITH REDUCED KAPITZA RESISTANCE

Номер: US20210013570A1
Автор: GUMANN PATRYK, Olivadese Salvatore Bernardo
Принадлежит:

An architecture for, and techniques for fabricating, a cryogenic microwave filter having reduced Kapitza resistance are provided. In some embodiments, the cryogenic microwave filter can comprise a substrate and a conductive line. The substrate can be formed of a material having a thermal conductivity property that sufficiently reduces Kapitza resistance in the cryogenic environment. The conductive line can be formed in a recess of the substrate and facilitate a filter operation on a microwave signal propagated in a cryogenic environment. In some embodiments, the conductive line can be formed according to a sintering technique that can reduce Kapitza resistance. 1. A method , comprising:forming, by a fabrication device, a recess in a substrate, wherein the recess has a geometry determined as a function of a filter operation for electromagnetic radiation having frequencies within a microwave spectrum between 300 megahertz (MHz) and 300 gigahertz (GHz); andsintering, by the fabrication device, a conductive material in the recess, resulting in a conductive line situated in the recess of the substrate.2. The method of claim 1 , wherein the sintering the conductive material comprises:depositing, by the fabrication device, a powdered form of the conductive material in the recess.3. The method of claim 2 , further comprising:exposing, by the fabrication device, the powdered form of the conductive material to a sintering environment characterized by a defined temperature and a defined pressure that are selected to coalesce the powdered form of the conductive material to the conductive line without liquefying the conductive material.4. The method of claim 3 , wherein the depositing the powdered form of the conductive material comprises depositing in the recess one of a group consisting of powdered gold claim 3 , powdered copper claim 3 , powdered silver claim 3 , and powdered aluminum.5. The method of claim 1 , further comprising forming claim 1 , by the fabrication device ...

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Номер записи: 50
18-01-2018 дата публикации

GRAVITATIONAL RADIATION COMMUNICATION SYSTEM

Номер: US20180017704A1
Автор: CHIAO Raymond
Принадлежит:

A gravitational radiation communication system. The system includes a gravitational radiation transmitter and a gravitational radiation receiver. Each of the transmitter and the receiver includes a first cylindrical superconducting cavity, having a first length, a first diameter, and an entrance aperture for electromagnetic radiation; a second cylindrical superconducting cavity, having a second length, a second diameter, and a first aperture for gravitational radiation, the second cavity being coaxial with and adjacent the first cavity; and a superconducting movable membrane positioned between the first cavity and the second cavity and configured to provide parametric amplification of electromagnetic fields in the second cavity. The first aperture is configured to pass gravitational radiation. 1. A gravitational radiation communication system comprising a gravitational radiation transmitter and a gravitational radiation receiver; each of the transmitter and the receiver comprising:a first cylindrical superconducting cavity, having a first length, a first diameter, and an entrance aperture for electromagnetic radiation;a second cylindrical superconducting cavity, having a second length, a second diameter, and a first aperture for gravitational radiation, the second cavity being coaxial with and adjacent the first cavity; anda superconducting movable membrane positioned between the first cavity and the second cavity and configured to provide parametric amplification of electromagnetic fields in the second cavity;wherein the first aperture is configured to pass gravitational radiation.2. The system of claim 1 , each of the transmitter and the receiver further comprising:a third cylindrical superconducting cavity, having a third length, a third diameter, and a second aperture for gravitational radiation, the third cavity being coaxial with and adjacent the second cavity; anda superconducting iris positioned between the second cavity and the third cavity, the iris having ...

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Номер записи: 51
28-01-2016 дата публикации

METHOD FOR PRODUCING SUPERCONDUCTIVE CONDUCTOR AND SUPERCONDUCTIVE CONDUCTOR

Номер: US20160027555A1
Автор: Nagasu Yoshinori
Принадлежит:

A superconductive wire conductor is produced by: embedding a plurality of deposition substrates formed into to have a predetermined size in parallel with each other to a connection base material to connect and integrate therewith; depositing an intermediate layer, a superconductive layer and a protective layer on a deposition surface side of the deposition substrate; and winding a single or multiple integrated superconductive conductors around a desired core material, separating each single superconductive wire from the integrated superconductive conductor and winding each superconductive wire around the core material or winding the integrated or separated wire alternately, whereby a superconductive conductor having a good superconductive characteristic without a problem regarding a shape thereof such as local protrusions. 1. A method for producing a superconductive conductor , comprising:preparing a plurality of deposition substrates;preparing a connection base material to be connected with and to be integrated with the plurality of deposition substrates;integrating the plurality of deposition substrates with the connection base material; anddepositing a superconductive layer and a protective layer on each of the plurality of deposition substrates.2. The method for producing a superconductive conductor according to claim 1 , whereinthe plurality of deposition substrates are separated from the connection base material after depositing the protective layer.3. The method for producing a superconductive conductor according to claim 2 , comprising:embedding the plurality of deposition substrates separated from the connection base material in a stabilizing metal.4. The method for producing a superconductive conductor according to claim 1 , comprising:covering an outer circumference of the plurality of deposition substrates and the connection base material with a stabilizing metal after depositing the protective layer, the plurality of deposition substrates and the ...

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Номер записи: 52
29-01-2015 дата публикации

ARRANGEMENT WITH THREE SUPERCONDUCTIVE PHASE CONDUCTORS

Номер: US20150031545A1
Автор: Stemmle Mark, West Beate
Принадлежит:

An arrangement is provided with three superconductive phase conductors each with a conductor, a dielectric and an electrically conductive screen surrounding the dielectric. The three phase conductors are arranged in a cryostat which conducts a cooling agent and which is made from a pipe with a thermal insulation. The screens of each of the conductors are for forming three, or a whole number multiple of three, sections arranged successively in the longitudinal direction by partial screens in a first, a second and a third section at two locations or at two locations spaced apart from each other. The partial screen of a first section of each phase conductor is electrically conductively connected in series to the partial screens of the second section and further to the third section of the two other phase conductors. 1. Superconductor arrangement comprising:three superconductive phase conductors that are constructed of a superconductive conductor as well as a dielectric and an electrically conductive screen surrounding the dielectric; andat least one cryostat with said superconductive phase conductors arranged therein, said cryostat conducting a cooling agent, wherein the cryostat is composed. of at least one pipe having a thermal insulation,wherein said electrically conductive screens of said superconductive phase conductors are separated into three, or a whole number multiple of three, partial screens, said partial screens extending successively in the longitudinal direction of each of said phase conductors, said partial screens completely interrupted from one another, at two locations, or at two locations arranged at a distance from each other, into a first, a second and a third partial screens, andwherein the partial screen of a first section of a first of said three phase conductors is electrically conductively connected in series to a partial screen of a second phase conductor of said phase conductors and further, to a third partial screen of a third phase ...

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Номер записи: 53
29-01-2015 дата публикации

CONNECTION STRUCTURE FOR SUPERCONDUCTING CABLES

Номер: US20150031546A1
Автор: Hirata Hirao, Mitsuhashi Takaharu, Nomura Tomoya, Yagi Masashi
Принадлежит:

A connection structure for superconducting cables includes: superconducting cables that are connected to each other and include cable cores containing formers and superconducting conductor layers, and each cable core is housed in a thermal insulation tube with a cooling medium, wherein the cable cores include electric insulating layers obtained by winding insulating sheets around the superconducting conductor layers, the electric insulating layers on both sides of a conductor connecting part, in which the formers and the superconducting conductor layers are connected to each other, include taper shape portions each having a diameter reducing towards the conductor connecting part, each taper shape portion is formed so as to have an inclination angle changing in a stepwise fashion by a plurality of tapered portions among which a tapered portion nearer the conductor connecting part has smaller inclination angle, and a reinforcing insulating layer is provided between the taper shape portions. 1. A connection structure for superconducting cables comprising:superconducting cables that are connected to each other and include cable cores containing formers and superconducting conductor layers, respectively, and each of the cable cores is housed in a thermal insulation tube with a cooling medium, whereinthe cable cores include electric insulating layers obtained by winding insulating sheets around the superconducting conductor layers, respectively,the electric insulating layers on both sides of a conductor connecting part, in which the formers and the superconducting conductor layers are connected to each other, include taper shape portions each having a diameter reducing towards the conductor connecting part,each of the taper shape portions is formed so as to have an inclination angle changing in a stepwise fashion by a plurality of tapered portions among which a tapered portion nearer the conductor connecting part has smaller inclination angle, anda reinforcing insulating ...

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Номер записи: 54
29-01-2015 дата публикации

Method of electrically conductively connecting two superconductive cables

Номер: US20150031547A1
Автор: Frank Schmidt, Mark Stemmle
Принадлежит: Nexans SA

A method is disclosed for electrically conductively connecting two superconductive cables. The ends of the two cables are arranged next to each other and parallel to one another, in such a way that their free ends point in the opposite direction, and their conductors are located at least approximately on the same level next to each other. Two conductors of the two cables are electrically conductively connected to each other through electrical contact elements ( 10, 11, 12 ). The screens ( 6 ) of the two cables ( 1, 2 ) are connected through by separate contact elements ( 13, 14, 15 ) and the two cable ends are treated in this manner for constructing a transmission length for electrical energy are arranged jointly in a housing ( 16 ) of a cryostat so that during operation of the transmission length, a flowable cooling agent with electrically insulating properties flows through a housing ( 16 ) of a cryostat.

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Номер записи: 55
28-01-2021 дата публикации

FLEXIBLE WIRING FOR LOW TEMPERATURE APPLICATIONS

Номер: US20210028346A1
Автор: Martinis John
Принадлежит:

The subject matter of the present disclosure may be embodied in devices, such as flexible wiring, that include: an elongated flexible substrate; multiple electrically conductive traces arranged in an array on a first side of the elongated flexible substrate; and an electromagnetic shielding layer on a second side of the elongated flexible substrate, the second side being opposite the first side, in which the elongated flexible substrate includes a fold region between a first electronically conductive trace and a second electrically conductive trace such that the electromagnetic shielding layer provides electromagnetic shielding between the first electronically conductive trace and the second electrically conductive trace. 1. Flexible wiring comprising:an elongated flexible substrate;a plurality of electrically conductive traces arranged in an array on a first side of the elongated flexible substrate; andan electromagnetic shielding layer on a second side of the elongated flexible substrate, the second side being opposite the first side,wherein the elongated flexible substrate comprises a fold region between a first electronically conductive trace and a second electrically conductive trace such that the electromagnetic shielding layer provides electromagnetic shielding between the first electronically conductive trace and the second electrically conductive trace.2. The flexible wiring of claim 1 , wherein the fold region comprises a raised band in the flexible substrate claim 1 , and a length of the elongated raised band extends parallel to a length of the first electrically conductive trace and the second electrically conductive trace.3. The flexible wiring of claim 1 , comprising a first elongated groove in the fold region claim 1 , and a length of the first elongated groove runs parallel to a length of the first electrically conductive trace and a length of the second electrically conductive trace.4. The flexible wiring of claim 3 , wherein the first elongated ...

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Номер записи: 56
11-02-2016 дата публикации

SUPERCONDUCTING DEVICES BY OPTIMIZATION OF THE SUPERCONDUCTOR'S LOCAL CRITICAL CURRENT

Номер: US20160042841A1
Автор: Holzapfel Bernhard, Rodriguez Zermeno Victor Manuel
Принадлежит:

The present invention relates to a method and an apparatus for producing superconducting devices and to superconducting devices. The method comprises determining one or more regions of reduced critical current density in the superconducting device and modifying the critical current density in the one or more regions of reduced critical current density, so as to increase the overall critical current or to decrease the overall AC losses of the superconducting device. The modifying comprises modifying the amount and/or distribution of the superconducting material in the one or more regions of reduced critical current density; and/or modifying the chemical composition of the superconducting material in the one or more regions of reduced critical current density; and/or decreasing the cooling temperature in the one or more regions of reduced critical current density. A superconducting device formed according to such method can also be provided. 1. A method of providing a superconducting device including a superconducting material , the method comprising:determining one or more regions of reduced critical current density in the superconducting device; modifying the amount and/or distribution of the superconducting material in the one or more regions of reduced critical current density; and/or', 'modifying the chemical composition of the superconducting material in the one or more regions of reduced critical current density; and/or', 'decreasing the cooling temperature in the one or more regions of reduced critical current density., 'modifying the critical current density in the one or more regions of reduced critical current density, so as to increase the overall critical current or to decrease the overall AC losses of the superconducting device, said modifying comprising2. The method according to claim 1 , wherein the modifying of the critical current density comprises modifying the amount and/or distribution of superconductor material in the one or more regions of ...

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Номер записи: 57
18-02-2016 дата публикации

QUENCH PROTECTED STRUCTURED SUPERCONDUCTING CABLE

Номер: US20160049225A1
Автор: Chavez Daniel, Gerity James, Mann Thomas, McIntyre Peter, Pogue Nathaniel, SATTAROV Akhdiyor, Smit Klaus, Tomsic Michael
Принадлежит:

Quench protected structured (QPS) superconducting cables, methods of fabricating the same, and methods of bending the same are disclosed. The methods of bending the QPS superconducting cables can be employed to produce windings. The QPS superconducting cables can rapidly drive a distributed quench to a normal conducting state in a superconducting cable if a region of the cable spontaneously quenches during high current operation. 1. A quench protected structured (QPS) superconducting cable , comprising:a spring tube;a plurality of superconducting wires disposed around the spring tube; anda sheath surrounding the plurality of superconducting wires and the spring tube,wherein the spring tube comprises a plurality of perforations.2. The QPS superconducting cable according to claim 1 , further comprising a plurality of quench heater wires claim 1 , wherein each quench heater of the plurality of quench heater wires is a resistive wire that generates heat as current passes through it.3. The QPS superconducting cable according to claim 2 , wherein the plurality of quench heater wires are distributed among the plurality of superconducting wires within the sheath.4. The QPS superconducting cable according to claim 2 , wherein the plurality of quench heater wires are provided external to the sheath.5. The QPS superconducting cable according to wherein the plurality of quench heater wires are distributed on an outer surface of the sheath.6. The QPS superconducting cable according to claim 1 , wherein the superconducting wires of the plurality of superconducting wires are cabled with a twist pitch around the spring tube and are confined within the sheath.7. The QPS superconducting cable of claim 1 , wherein the spring tube is filled with a cryogen that passes through the plurality of perforations in the spring tube and thereby fills interstitial space between the sheath and the plurality of superconducting wires.8. The QPS superconducting cable according to claim 1 , wherein ...

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Номер записи: 58
25-02-2021 дата публикации

APPARATUSES AND METHODS FOR INCREASING MAGNETIC FLUX DENSITY USING SUPERCONDUCTORS

Номер: US20210057135A1
Автор: CHOI Hyeongrak, ENGLUND Dirk Robert
Принадлежит:

Using the Meissner effect in superconductors, demonstrated here is the capability to create an arbitrarily high magnetic flux density (also sometimes referred to as “flux squeezing”). This technique has immediate applications for numerous technologies. For example, it allows the generation of very large magnetic fields (e.g., exceeding 1 Tesla) for nuclear magnetic resonance (NMR), magnetic resonance imaging (MRI), the generation of controlled magnetic fields for advanced superconducting quantum computing devices, and/or the like. The magnetic field concentration/increased flux density approaches can be applied to both static magnetic fields (i.e., direct current (DC) magnetic fields) and time-varying magnetic fields (i.e., alternating current (AC) magnetic fields) up to microwave frequencies. 1. An apparatus , comprising:a source to generate a magnetic field;an enclosure to receive the generated magnetic field; anda superconductor element, disposed in the enclosure such that a gap is created between an edge of the superconductor and a wall of the enclosure, to increase a magnetic flux density of the magnetic field in the gap.2. The apparatus of claim 1 , wherein the superconductor element is shaped and positioned within the enclosure to have a demagnetization factor of about 1.3. The apparatus of claim 1 , wherein the magnetic field is a static magnetic field.4. The apparatus of claim 1 , wherein the magnetic field is a time-varying magnetic field.5. The apparatus of claim 4 , wherein the magnetic field varies at a frequency of up to about 300 GHz.6. The apparatus of claim 4 , wherein the enclosure is configured as a resonator for a frequency of the magnetic field.7. A method claim 4 , comprising:disposing a superconductor element in an enclosure such that a gap is created between an edge of the superconductor and a wall of the enclosure; andapplying a magnetic field to the enclosure, wherein a magnetic flux density of the magnetic field in the gap is greater than ...

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Номер записи: 59
15-05-2014 дата публикации

TERMINATION UNIT

Номер: US20140135222A1
Автор: Fisher Paul W., Lindsay David, Nielsen Carsten Thidemann, Roden Mark, Tolbert Jerry C., Traeholt Chresten, Willen Dag
Принадлежит: NKT CABLES ULTERA A/S

Cable end section comprises end-parts of N electrical phases/neutral, and a thermally-insulation envelope comprising cooling fluid. The end-parts each comprises a conductor and are arranged with phase innermost, N outermost surrounded by the neutral, electrical insulation being between phases and N and neutral. The end-parts comprise contacting surfaces located sequentially along the longitudinal extension of the end-section. A termination unit has an insulating envelope connected to a cryostat, special parts at both ends comprising an adapter piece at the cable interface and a closing end-piece terminating the envelope in the end-section. The special parts houses an inlet and/or outlet for cooling fluid. The space between an inner wall of the envelope and a central opening of the cable is filled with cooling fluid. The special part at the end connecting to the cryostat houses an inlet or outlet, splitting cooling flow into cable annular flow and termination annular flow. 11. A termination unit comprising an end-section of a cable , the end section of the cable defining a central longitudinal axis and comprising end-parts of N electrical phases , an end-part of a neutral conductor and a surrounding thermally insulation envelope adapted to comprising a cooling fluid , the end-parts of the N electrical phases and the end-part of the neutral conductor each comprising at least one electrical conductor and being arranged in the cable concentrically around a core former with a phase located relatively innermost , and phase N relatively outermost in the cable , phase N being surrounded by the neutral conductor , electrical insulation being arranged between neighbouring electrical phases and between phase N and the neutral conductor , and wherein the end-parts of the neutral conductor and the electrical phases each comprise a contacting surface to provide an electrical connection , the contacting surfaces being located sequentially along the longitudinal extension of the ...

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Номер записи: 60
20-02-2020 дата публикации

SUPERCONDUCTIVE WIRE, SUPERCONDUCTIVE COIL AND SUPERCONDUCTIVE CABLE CONDUCTOR

Номер: US20200058419A1
Автор: Honda Yoshihiro, YOSHIHARA Tatsuhiko
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided are a superconductive wire and a superconductive coil that have sufficient superconductivity and may be manufactured through a simple manufacturing process. The superconductive wire includes a tape-shaped substrate having a main surface and a superconductive layer provided on the main surface. A critical current flowing through an end portion in the width direction perpendicular to the extending direction of the substrate is larger than a critical current flowing through a central portion in the width direction. 1. A superconductive wire comprising:a tape-shaped substrate having a main surface; anda superconductive layer provided on the main surface,a critical current flowing through an end portion in a width direction perpendicular to the extending direction of the substrate being larger than a critical current flowing through a central portion in the width direction.2. The superconductive wire according to claim 1 , whereinwhen the distance from the center of the substrate in the width direction to an end surface of the substrate is expressed by a (unit: mm), the central portion is a region with a distance of 0.6a or less from the center, and the end portion is a region with a distance greater than 0.6a and equal to or less than (a−0.1) from the center,the critical current flowing through the end portion is 1.1 times or more and 2.5 times or less as large as the critical current flowing through the central portion.3. The superconductive wire according to claim 1 , whereinthe superconductive layer located at the central portion includes a portion which has a thickness thinner than the thickness of the superconductive layer located at the end portion.4. The superconductive wire according to claim 1 , whereinthe superconductive layer located at the central portion includes a portion which has a lower crystal orientation than the superconductive wire located in the end portion.5. A superconductive coil comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1 ...

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Номер записи: 61
04-03-2021 дата публикации

METHOD FOR IMPROVING CURRENT CARRYING CAPACITY OF SECOND-GENERATION HIGH-TEMPERATURE SUPERCONDUCTING TAPE

Номер: US20210065937A1
Автор: CHU Jingyuan, JIN Zhijian, Zhao Yue
Принадлежит:

A method for improving current carrying capacity of a second-generation high-temperature superconducting tape, which includes: stretching the second-generation high-temperature superconducting tape in a high-temperature environment, and carrying out an oxygenation heat treatment on the stretched second-generation high-temperature superconducting tape The atmosphere of the high-temperature environment is oxygen, or an inert gas, or a mixture thereof, and a temperature of the high-temperature environment is 450-650° C.; and a strain for stretching ranges from 0.1% to 1%, and a time for stretching ranges from 1 minute to 100 hours. The method of the present invention is a post-processing technique for the second-generation high-temperature superconducting tape with a simple treatment process and a controllable result, and by stretching, current carrying capacity of the superconducting tape is improved and anisotropy of superconductivity is reduced. 1. A method for improving a current carrying capacity of a second-generation high-temperature superconducting tape , comprising:stretching the second-generation high-temperature superconducting tape in a high-temperature environment; andcarrying out oxygenation heat treatment on the stretched second-generation high-temperature superconducting tape.2. The method of claim 1 , wherein the second-generation high-temperature superconducting tape is plated with or without silver.3. The method of claim 1 , wherein a superconducting layer of the second-generation high-temperature superconducting tape comprises a rare-earth barium-copper-oxide compound or a rare-earth barium-copper-oxide compound containing a non-superconducting second phase.4. The method of claim 1 , wherein the preparation technique for the superconducting layer of the second-generation high-temperature superconducting tape comprises pulsed laser deposition claim 1 , chemical vapor deposition and chemical solution deposition.5. The method of claim 1 , wherein an ...

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Номер записи: 62
10-03-2016 дата публикации

END CLOSURE OF A SUPERCONDUCTIVE ELECTRIC CABLE

Номер: US20160071631A1
Автор: Marzahn Erik, Stemmle Mark
Принадлежит:

An end closure for a superconductive electric cable which has at least one superconductive conductor which is surrounded by a tubular cryostat serving for conducting a cooling agent, which at its end is surrounded by a housing. The housing (G) has two walls () which are separated from each other by an intermediate space () and having insulating material, wherein a thermal insulation containing gas is placed in the intermediate space. The pressure in the intermediate space () of the housing (G) is adjusted to a value of between 10mbar and 1000 mbar and, connected to the intermediate space () are a pressure measuring device () and a vacuum pump () which serve for adjusting the pressure prevailing in the intermediate space () of the housing (G). 1. End closure for a superconductive electrical cable which has at least one superconductive conductor surrounded by a tubular cryostat serving for conducting a cooling agent , said end closure comprising: the housing has two walls separated from each other by an intermediate space, in whose intermediate space a gas containing thermal insulation is provided,', {'sup': '−9', 'the pressure in the intermediate space of the housing is set at a value between 10mbar and 1000 mbar, and'}, 'a pressure measuring device and a vacuum pump connected thereto serve for adjusting the pressure to a predetermined value prevailing in the intermediate space of the housing., 'a housing surrounding the end of said superconductive electrical cable, said housing containing cooling agent through which a passage connected to the conductor extends outwardly, wherein2. End closure according to claim 1 , wherein the intermediate space is connected to a container whose volume is large as compared to the volume of the gas contained in the intermediate space.3. End closure according to claim 2 , wherein the container is arranged between the housing and the vacuum pump.4. End closure according to claim 2 , wherein the volume of the container is larger at ...

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Номер записи: 63
28-02-2019 дата публикации

SUPERCONDUCTING WIRE AND SUPERCONDUCTING COIL

Номер: US20190066865A1
Автор: FUKUOKA Kosei, ITO Yuki, MAKI Kazunari
Принадлежит: MITSUBISHI MATERIALS CORPORATION

This superconducting wire includes: a strand including a superconducting material; and a stabilizer material for superconductor arranged in contact with the strand, wherein the stabilizer material for superconductor includes a copper material which contains one kind or two kinds or more of additive elements selected from Ca, Sr, Ba, and rare earth elements (RE) for a total amount of 3 ppm by mass or more and 400 ppm by mass or less, with the remainder being Cu and unavoidable impurities, the total concentration of the unavoidable impurities other than O, H, C, N, and S, which are gas components, is 5 ppm by mass or more and 100 ppm by mass or less, and compounds including one kind or two kinds or more selected from CaS, CaSO, SrS, SrSO, BaS, BaSO, (RE)S, and (RE)SOare present in the matrix. 1. A superconducting wire comprising:a strand including a superconducting material; anda stabilizer material for superconductor arranged in contact with the strand, whereinthe stabilizer material for superconductor includes a copper material which contains one or more of additive elements selected from the group consisting of Ca, Sr, Ba, and rare earth elements (RE) in a total amount of 3 ppm by mass or more and 400 ppm by mass or less, with a remainder being Cu and unavoidable impurities,a total concentration of the unavoidable impurities other than O, H, C, N, and S, which are gas components, is 5 ppm by mass or more and 100 ppm by mass or less, and{'sub': 4', '4', '4', '2', '2, 'one or more compounds selected from the group consisting of CaS, CaSO, SrS, SrSO, BaS, BaSO, (RE)S, and (RE)SOare present in a matrix.'}2. The superconducting wire according to claim 1 ,wherein the unavoidable impurities includes:Fe in an amount of 10 ppm by mass or less,Ni in an amount of 10 ppm by mass or less,As in an amount of 5 ppm by mass or less,Ag in an amount of 50 ppm by mass or less,Sn in an amount of 4 ppm by mass or less,Sb in an amount of 4 ppm by mass or less,Pb in an amount of 6 ppm by ...

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Номер записи: 64
28-02-2019 дата публикации

Energy Transmission Apparatus For A Vehicle

Номер: US20190066878A1
Автор: Arndt Tabea
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

The present disclosure relates to vehicles. Various embodiments of the teachings thereof may include energy transmission apparatus for transmitting energy within a vehicle, in particular an aircraft. For example, an energy transmission apparatus may include: a superconducting cable run having a superconducting conductor element. The superconducting cable system transmits electrical energy with a power of at least 1 MW. The superconducting cable system has a weight per unit length of at most 2 kg/m. 1. An energy transmission apparatus for transmitting energy within a vehicle having a cable system , the apparatus comprising:a superconducting cable run having a superconducting conductor element;wherein the cable system transmits electrical energy with a power of at least 1 MW; andthe cable system has a weight per unit length of at most 2 kg/m.2. The energy transmission apparatus as claimed in claim 1 , wherein the superconducting cable run has a weight per unit length of at most 0.7 kg/m; andthe cable system has a weight per unit length of at most 1 kg/m.3. The energy transmission apparatus as claimed in claim 1 ,wherein the cable system has a current-carrying capacity of at least 500 A; andthe cable system operates at a transmission voltage below 10 kV.4. The energy transmission apparatus as claimed in claim 1 , wherein the cable system comprises a double-walled cryostat for the cooling of the superconducting conductor element claim 1 ,wherein both cryostat walls, over a major proportion of a longitudinal extension of the cable system comprise smooth-walled tubes.5. The energy transmission apparatus as claimed in claim 1 , wherein the cable system is configured for the transmission of alternating current and comprises a plurality of superconducting conductor elements claim 1 , each of which is assigned to one phase of the alternating current.6. The energy transmission apparatus as claimed in claim 5 , wherein the conductor elements for a plurality of phases are ...

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Номер записи: 65
05-03-2020 дата публикации

Railway Direct-Currently Feeding System

Номер: US20200070686A1
Автор: Masaru Tomita, Yusuke Fukumoto
Принадлежит: RAILWAY TECHNICAL RESEARCH INSTITUTE

A railway direct-current system according to the present invention is provided with: a feeding line that is connected to a plurality of electric power substations arranged along a railway; and a trolley line that is connected to the feeding line via feeding branch lines at an arbitrarily defined interval, wherein a superconductive feeding cable is connected to somewhere midway in each of railroad lines extending from the substations to the trolley line via the feeding lines, so as to be parallel with the railroad line.

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Номер записи: 66
19-03-2015 дата публикации

SUPERCONDUCTING CABLE JOINT

Номер: US20150080221A1
Автор: Delplace Sebastien, Lallouet Nicolas
Принадлежит:

A joint is provided between two abutting cables, where the cables each have, around a central support, at least one phase layer composed of at least one layer of superconducting material and a neutral layer that are concentric and contained in a shell, filled with cryogenic fluid. The neutral layer of each cable is also stripped, at least one bridging support member is placed between the stripped neutral layers, and a layer of conducting or superconducting material, for, the electrical connection of these neutral layers, is placed on the support member. 1. Joint between two abutting cables , each cable comprising:around a central support, at least one phase layer composed of at least one layer of superconducting material; anda neutral layer, these layers being concentric and contained in a shell filled with cryogenic fluid,said abutting inner phase layers being stripped and being directly connected,wherein said neutral layer of each cable is also stripped, at least one bridging support member is placed between said stripped neutral layers, and a layer of conducting or superconducting material for electrically connecting these neutral layers is placed on said bridging support member.2. Joint according to claim 1 , wherein said support member is formed by a bridging element of tubular insulating material beveled at its ends.3. Joint according to claim 1 , wherein a longitudinal tubular space filled with cryogenic fluid is provided between the connection of said inner phase layers of superconducting material and the bridging support member.4. Joint according to claim 3 , wherein said bridging support members are made at least partially of metal.5. Joint according to claim 3 , wherein said bridging support members are made at least partially of insulating material.61. Joint between two abutting cables according to claim. claim 3 , each cable comprising:around a central support, three concentric phase layers, each composed of at least one layer of superconducting ...

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Номер записи: 67
19-03-2015 дата публикации

INTERMEDIATE CONNECTION UNIT OF SUPERCONDUCTING CABLES

Номер: US20150080225A1
Автор: Mitsuhashi Takaharu, Nomura Tomoya, Teng Jun, Yagi Masashi
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

In an intermediate connecting unit of superconducting cables, by forming the connecting superconducting wires in a trapezoid shape tapered in the direction of the electric insulating layer (the superconducting shield layers ) sides from the large radius section side of the reinforcement insulating layer , the inclined surface sections can be covered without spaces and without the plurality of connecting superconducting wires overlapping. The plurality of connecting superconducting wires cover the inclined surface sections of the reinforcement insulating layer formed thicker than the radius of the cable cores of the superconducting cables . The connecting superconducting wires further connects the superconducting wires arranged on the outer periphery of the large radius section of the reinforcement insulating layer and the superconducting wires constituting the superconducting shield layers 1. An intermediate connection unit of superconducting cables which are connected by a pair of cable cores , each cable core including an electric insulating layer and a superconducting shield layer in an order on an outer periphery of a superconductive conductor , the intermediate connection unit comprising:a reinforcement insulating layer including a large radius section formed thicker than a cable core and inclined surface sections inclined toward electric insulating layers from the large radius section, the reinforcement insulating layer covering a connection parts of superconductive conductors;a plurality of connecting superconducting wires which connect a plurality of superconducting wires arranged so as to cover an outer periphery of the large radius section and a plurality of superconducting wires constituting superconducting shield layers, whereinthe connecting superconducting wires have a tapered a shape tapered toward electric insulating layer sides from the large radius section.2. The intermediate connection unit of the superconducting cables according to claim 1 , ...

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Номер записи: 68
05-06-2014 дата публикации

OXIDE SUPERCONDUCTOR WIRE AND SUPERCONDUCTING COIL

Номер: US20140155269A1
Автор: DAIBO Masanori
Принадлежит: FUJIKURA LTD.

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. 1. An oxide superconductor wire comprising: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; andan insulating coating layer that covers an outside surface of the superconductor laminate, whereineither an entire outside surface or an entire inside surface of the insulating coating layer is coated with a coating layer formed of a fluororesin.2. The oxide superconductor wire according to claim 1 , whereinboth the entire outside surface and the entire inside surface of the insulating coating layer are coated with the coating layer.3. The oxide superconductor wire according to claim 1 , whereinthe insulating coating layer is formed by winding an insulating tape around the superconductor laminate, the insulating tape being coated with the coating layer.4. The oxide superconductor wire according to claim 3 , whereinat least one sheet of the insulating tape is wound around the superconductor laminate so as to cover the entire outside surface thereof.5. The oxide superconductor wire according to claim 1 , whereinthe thickness of the coating layer is 1 to 10 μm.6. The oxide superconductor wire according to claim 2 , whereinthe thickness of the coating layer is 1 to 10 μm.7. The oxide superconductor wire according to claim 3 , whereinthe thickness of the coating layer is 1 to 10 μm.8. The oxide superconductor wire according to ...

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Номер записи: 69
07-03-2019 дата публикации

High-Temperature Superconducting Coil Having Smart Insulation, High-Temperature Superconducting Wire Used Therefor, and Manufacturing Method Therefor

Номер: US20190074118A1
Автор: HA Dong Woo, Jo Young Sik, KIM Hyung Wook, Kim Seog Whan, Ko Rock Kil, Park Chan
Принадлежит:

The present invention relates to a superconducting coil having a structure in which an insulation layer electrically insulates the space between adjacent wound wires. The present invention provides a superconducting coil in which superconducting wires extended at a predetermined width in a lengthwise direction are stacked and wound, the superconducting coil comprising a metal-insulator transition (MIT) material layer interposed so as to electrically insulate space between adjacent superconducting wires in the stacking direction of the superconducting wires. According to the present invention, provided is a superconducting coil having high stability, and easily controlling electromagnetic properties including response properties and having a self-protective function against a quench phenomenon and the like during the driving of a magnet. 130.-. (canceled)31. A high-temperature superconducting coil , in which a high-temperature superconducting wire including a superconducting portion extended in a longitudinal direction with a predetermined width is wound , the high-temperature superconducting coil comprising:a metal-insulator transition (MIT) material layer interposed between the superconducting portions of the adjacent high-temperature superconducting wires.32. The high-temperature superconducting coil of claim 31 , wherein the MIT material layer has a transition temperature equal to or higher than a critical temperature of the high-temperature superconducting wire.33. The high-temperature superconducting coil of claim 31 , wherein a transition temperature of the MIT material layer is lower than a critical temperature of +100 K.34. The high-temperature superconducting coil of claim 32 , wherein electrical conductivity of the MIT material layer increases 10times or more at a temperature at or around the transition temperature.35. The high-temperature superconducting coil of claim 32 , wherein electrical conductivity of the MIT material layer increases 10times or more ...

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Номер записи: 70
12-06-2014 дата публикации

CABLE TERMINATION FOR HIGH VOLTAGE POWER CABLES COOLED BY A GASEOUS CRYOGEN

Номер: US20140162882A1
Автор: Crook Danny G., Dale Steinar, Graber Lukas, Pamidi Sastry, Rodrigo Horatio, Trociewitz Bianca
Принадлежит: The Florida State University Research Foundation, Inc.

A cable termination utilizing liquid and gaseous cryogen. The liquid cryogen maintains cryogen temperatures of all dielectric surfaces exposed to gaseous cryogen and to high voltage potential. The invention further includes capacitive grading, minimizing the electric field on the surface of the bushing in the vapor phase of the cryogen used in the liquid cryogen compartment. The cross-section of the conductor within the cable termination is adjusted along its axis enabling thermal optimization for reduction in the loss of liquid cryogen. Heat sink, for helium gas cooling of superconducting power devices, is surrounded by a metal of high thermal conductivity and placed near the area needed to be cooled. Cryogenic gaseous coolant flows through two tubes connected to the heat sink. Fins inside heat sink increase metal surface in contact with the coolant. The coolant flows from first tube, passes through the finned are and exits through the second tube. 1. A cable termination to maintain and test dielectric and thermal integrity at cryogenic temperatures in high voltage power cables , comprising:a cryostat having a chamber with an upper portion and a lower portion;an upper brushing extending into said upper portion of said chamber of said cryostat;liquid cryogen disposed within said upper portion of said chamber of said cryostat;a lower brushing extending into said lower portion of said chamber of said cryostat, said lower brushing in electrical connection with said upper brushing via a flexible a flexible joint that reduces mechanical stress due to different coefficients of thermal expansion of materials used in said cable termination;a superconducting cable disposed within said lower portion of said chamber of said cryostat; andgaseous cryogen disposed within said lower portion of said chamber of said cryostat,whereby said liquid cryogen has a higher density than said gaseous cryogen, thus increasing heat conduction, in turn maintaining cryogenic temperature for all ...

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Номер записи: 71
12-06-2014 дата публикации

ARRANGEMENT WITH AT LEAST ONE SUPERCONDUCTIVE CABLE

Номер: US20140162883A1
Автор: Bruzek Christian Eric, Marzahn Erik
Принадлежит:

An arrangement is provided at least one superconductive cable () and a first cryostat (K). A second cryostat (K) is provided, formed coaxially with and at a distance from the first cryostat (K). Arranged in the intermediate space () between the first cryostat (K) and the second cryostat (K) is a high voltage resistant insulation () which completely surrounds the outer pipe () of the first cryostat (K), and which rests on the latter, where liquefied gas conducted during the operation of the arrangement flows through the intermediate space () around the insulation and impregnates the insulation. 1. Superconducting arrangement comprising:at least one superconductive cable;a first cryostat surrounding the superconductive cable for conducting a first cooling agent therethrough,wherein the first cryostat is composed of two pipes of metal which are arranged coaxially and at a distance from each other and form a thermal insulation therebetween, andwherein the cryostat encloses a hollow space over its entire length in which the cable is arranged and through which, during operation of the arrangement, the first cooling agent is conducted,wherein, as the first cooling agent a liquid gas cooled to a temperature of 39K or lower, or a less cooled liquid or gaseous cooling agent, are used; anda second cryostat is formed around the first cryostat, said second cryostat is composed of two pipes formed coaxially with and at a distance from the first cryostat for conducting a second cooling agent,wherein a liquefied gas having a temperature of 112K or lower is conducted,wherein magnesium diboride is used as superconductive material, andwherein high voltage insulation is arranged in the intermediate space between the first cryostat and the second cryostat which completely surrounds the outer pipe of the first cryostat and which rests on the cryostat, andwherein during operation of the arrangement liquefied gas flows through the intermediate space and impregnates the insulation.2. ...

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Номер записи: 72
24-03-2016 дата публикации

SUPERCONDUCTING JOINTS

Номер: US20160086693A1
Автор: "LAKRIMI MHamed", Noys Jonathan, Simpkins Michael, Thomas Adrian Mark
Принадлежит: Siemens PLC

A superconducting joint and a cooling surface are provided as a combination. The superconducting joint joins superconducting wires each comprising superconducting filaments electrically joined together. The cooling surface comprises a thermally and electrically conductive material. An electrically isolating surface coating is provided on the cooling surface. The superconducting joint, the surface coating and the cooling surface are in thermal contact. The superconducting joint is electrically isolated from the cooling surface by the surface coating. The tails of the superconducting wires are wrapped around the electrically isolating surface coating. 1. A combination , comprising:a superconducting joint joining superconducting wires each comprising superconducting filaments electrically joined together and tails of the superconducting wires being parts of the wires leading to the joint;a cooling surface comprising a thermally and electrically conductive material;an electrically isolating surface coating provided between the cooling surface and the joint;the superconducting joint, the surface coating and the cooling surface being in mechanical and thermal contact;the superconducting joint being electrically isolated from the cooling surface by the surface coating;the cooling surface being provided with a thermally conductive tag in thermal contact with the cooling surface; andthe superconducting joint being mechanically restrained in thermal and mechanical contact with the tag.2. The combination according to wherein the electrically isolating surface coating is applied to the thermally conductive tag.3. The combination according to wherein the electrically isolating surface is applied to the superconducting joint.4. The combination according to wherein the joint comprises a joint cup containing a superconducting material in which exposed filaments of the superconducting wires are embedded.5. The combination according to wherein the electrically isolating surface ...

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Номер записи: 73
24-03-2016 дата публикации

SUPERCONDUCTIVE CURRENT LIMITING ELEMENT OF CURRENT LIMITER AND METHOD FOR MANUFACTURING SUPERCONDUCTIVE CURRENT LIMITING ELEMENT OF CURRENT LIMITER

Номер: US20160087427A1
Автор: HAN Sang-jin, Han Young-Hee, KIM Hee-Sun, KIM Hye-Rim, KIM Woo-seok, LEE Ji-Young, Park Byung-Jun, YANG Seong-Eun, YU Seung-Duck
Принадлежит:

Disclosed are a superconducting current-limiting element for a current limiter and a method of manufacturing a superconducting current-limiting element for a current limiter, in which the current-limiting element is formed in series by stacking linear superconducting wires, or is formed in parallel by stacking superconducting wires so that one or more superconducting wires are disposed in the same layer, thus facilitating the formation of the current-limiting element in series or in parallel and obviating the use of a winding machine when manufacturing the current-limiting element. 1. A superconducting current-limiting element for a current limiter , comprising:superconducting wires extending in a straight line and stacked in one or more layers;connection blocks and insulation blocks respectively disposed at both ends of the superconducting wires between the stacked superconducting wires so that the connection blocks and the insulation blocks are alternately located in each of the layers; anda terminal provided at each of an end of an uppermost superconducting wire and an end of a lowermost superconducting wire among the stacked superconducting wires.2. The superconducting current-limiting element of claim 1 , wherein the superconducting wires are in a bar shape configured to include a substrate extending in a straight line on one surface thereof and a superconductor provided on the other surface thereof.3. The superconducting current-limiting element of claim 1 , wherein each of the connection blocks includes seating recesses claim 1 , which are formed in both surfaces thereof coming into contact with the superconducting wires and into which both ends of the superconducting wires are seated.4. The superconducting current-limiting element of claim 3 , wherein each of the connection blocks includes:first mounting recesses formed to a shallower depth than the seating recesses so as to form a stepped portion along a circumference of each of the seating recesses; ...

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Номер записи: 74
30-03-2017 дата публикации

HIGH TEMPERATURE SUPERCONDUCTOR WIRE BUNDLING SYSTEM AND METHOD

Номер: US20170092392A1
Автор: Baum Alan W., Driscoll Glenn C., Freidhoff Timothy G., George, Huber Patricia D., II Daniel B., III Henry C., Tipton Bryan P., Valcour, Yankauskas Paul
Принадлежит:

A system for bundling a plurality of high temperature superconductor tapes into a flexible cable, includes a first alignment device for receiving and guiding there through the plurality of high temperature superconductor tapes, each of the tapes arranged with a wide surface oriented at a first angle. There is a second alignment device for receiving and guiding there through the plurality of high temperature superconductor tapes, each of said tapes arranged with the wide surface oriented at a second angle. The first angle is transverse to the second angle and plastically deforms the tapes to impart a twist pitch in the tapes. There is a forming member spaced from the second alignment device for receiving the plurality of high temperature superconductor tapes with the imparted twist pitch and forming them into a bundle of high temperature superconductor tapes of the high temperature superconductor tapes with the imparted twist pitch. 1. A system for bundling a plurality of high temperature superconductor tapes into a flexible cable , comprising:A first alignment device for receiving and guiding there through the plurality of high temperature superconductor tapes, each of said tapes arranged side by side with a wide surface of each of the plurality of high temperature superconductor tapes oriented at a first angle;A second alignment device spaced from the first alignment device for receiving and guiding there through the plurality of high temperature superconductor tapes, each of said tapes arranged side by side with the wide surface of each of the plurality of high temperature superconductor tapes oriented at a second angle, the first angle being transverse to the second angle so as to plastically deform the plurality of tapes and impart a twist pitch in the plurality of high temperature superconductor tapes; andA forming member spaced from the second alignment device for receiving the plurality of high temperature superconductor tapes with the imparted twist pitch ...

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Номер записи: 75
09-04-2015 дата публикации

COOLING CONTAINER

Номер: US20150099640A1
Автор: Kasahara Hajime, Matsui Masakazu, Matsuoka Taro
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

A cooling container accommodates an object to be cooled and a liquid coolant in the inside. A lid member can close an upper opening of the coolant container. A cooling device is supported by the lid member and includes a cooling section at a lower end. Electric current leads supported by the lid member make electric current flow into the object to be cooled inside the coolant container. The electric current leads each include a thermal resistance section with higher thermal resistance than surrounding portions, positioned above the liquid surface of the liquid coolant in the coolant container. Between the thermal resistance sections and the cooling section, a partition section made from a heat insulation material with a lower end below the thermal resistance sections is provided. An effect of penetrating heat can be prevented, allowing the inside of the coolant container to be efficiently cooled. 1. A cooling container , comprising:a coolant container which houses an object to be cooled and a liquid coolant in an inner space;a lid member capable of closing an upper opening of the coolant container;a cooling unit which is supported by and hung from the lid member and which comprises a cooling section at a lower end; andan electric current lead which is supported by and hung from the lid member, and which applies an electric current to the object to be cooled in the inner space of the coolant container,wherein the electric current lead comprises a thermal resistance section which is disposed in the inner space of the coolant container at a level higher than a liquid level of the liquid coolant, and which has a thermal resistance higher than parts of the electric current lead above and below the thermal resistance section, andwherein a cooling container further comprises a partition section which is made of a heat insulating material, and which is disposed between the thermal resistance section and the cooling section of the cooling unit, in which a lower end of the ...

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Номер записи: 76
23-04-2015 дата публикации

Structure and method for connecting formers of superconducting cables

Номер: US20150107867A1
Автор: Jun TENG, Masashi Yagi
Принадлежит: Furukawa Electric Co Ltd, International Superconductivity Technology Center

A connection structure of formers for connecting hollow formers provided inside superconducting cables, comprising: a connection conduit which is hollow, wherein one end section and the other end section of the connection conduit are inserted into open sections leading to hollow internal sections formed at connection end sections of the respective formers, and the opposed connection end sections of the respective formers are connected to each other by welding. The connection conduit thereby ensures circulation of a refrigerant. Also, there is no incidence of the cooling medium circulation path being blocked when welding is performed in the connection conduit, allowing formers to be more easily connected.

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Номер записи: 77
03-07-2014 дата публикации

INSULATED HIGH-TEMPERATURE WIRE SUPERCONDUCTOR AND METHOD FOR PRODUCING SAME

Номер: US20140187428A1
Автор: Brand Joerg, Elschner Steffen, Fink Stefan, Goldacker Wilfried, Kudymow Andrej
Принадлежит: KARLSRUHER INSTITUT FUER TECHNOLOGIE

An insulated high-temperature wire superconductor includes a wire of a noninsulated high temperature wire superconductor, the width of which is at least 10 times its thickness and in which a high-temperature superconductor is introduced into a matrix or is applied to a substrate. The wire is provided with an electrically non-conducting insulating layer on both sides such that the two insulating layers have an insulating edge width in a range from 2 mm to 200 mm which projects in relation to the wire. 1. An insulated high-temperature wire superconductor , comprising:a wire of a non-insulated high-temperature wire superconductor, the width of which is at least 10 times its thickness and in which a high-temperature superconductor is disposed in a matrix or is on a substrate, the wire being provided with an electrically non-conducting insulating layer on both sides such that the two insulating layer have an insulating edge width in a rime from 2 mm to 200 mm which projects in relation to the wire.2. The insulated high-temperature wire superconductor according to claim 1 , wherein the two insulating layers have a common thickness of 20 μm to 2 mm.3. The insulated high-temperature wire superconductor according to claim 1 , wherein at least one of the two insulating layers is laminated on one side of the wire.4. The insulated high-temperature wire superconductor according to claim 3 , wherein at least one of the two insulating layers is laminated with a layer of an adhesive on the side facing the wire.5. The insulated high-temperature wire superconductor according to claim 1 , wherein at least one of the two insulating layers consists of at least one polymer.6. The insulated high-temperature wire superconductor according to claim 5 , wherein at least one of the two insulating layers consists of polyimide.7. A method for producing an insulated high-temperature wire superconductorapplying an electrically non-conducting insulating layer to each of both sides of a wire of a ...

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Номер записи: 78
09-06-2022 дата публикации

Electrically connecting device for superconducting wires

Номер: US20220181800A1
Автор: Delplace Sebastien, Lallouet Nicolas, LEGRAND Loïc
Принадлежит:

An electrically connecting device () includes a linking part defining an internal channel () that opens onto the exterior of the linking part. The internal channel () is able to receive two end segments of two superconducting wires () that lie parallel in the internal channel () over a segment of common length; and an aperture () in the external jacket of the linking part. The aperture () is in communication with the internal channel () in order to allow a brazing material in liquid form to be inserted into the internal channel () around the two end segments of the two superconducting wires (). 2. The electrically connecting device according to claim 1 , wherein the linking part is of integral construction and made of an electrically conductive material able to withstand a cryogenic temperature.3. The electrically connecting device according to claim 2 , wherein the linking part is made of copper.4. The electrically connecting device according to claim 1 , wherein said aperture is a slit extending over the central elongate body parallel to the internal channel.5. The electrically connecting device according to claim 1 , wherein the dimension of the cross section of the shape of an eight is substantially adjusted to the dimensions of the cross sections of the two end segments of the two superconducting wires.6. The electrically connecting device according to claim 1 , wherein the first open end and the second open end have an elongate cross section concentric with the cross section of the shape of an eight of the internal channel.7. The electrically connecting device according to claim 6 , further comprising two heat-shrinkable sleeves that are configured to sealably encircle the transition regions of two superconducting wires inserted into the first open end and the second open end.8. The electrically connecting device according to claim 1 , wherein said central elongate body is cylindrical.9. The electrically connecting device according to claim 1 , wherein the ...

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Номер записи: 79
09-04-2020 дата публикации

Superconducting wire

Номер: US20200111589A1
Автор: Genki Honda, Kotaro Ohki, Masaya Konishi, Takashi Yamaguchi, Tatsuhiko Yoshihara, Tatsuoki Nagaishi
Принадлежит: Sumitomo Electric Industries Ltd

A superconducting wire includes a multilayer stack and a covering layer (stabilizing layer or protective layer). The multilayer stack includes a substrate having a main surface and a superconducting material layer formed on the main surface. The covering layer (stabilizing layer or protective layer) is disposed on at least the superconducting material layer. A front surface portion of the covering layer (stabilizing layer or protective layer) located on the superconducting material layer (front surface portion of the stabilizing layer or upper surface of the protective layer) has a concave shape.

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Номер записи: 80
04-05-2017 дата публикации

COOLING SYSTEM FOR ELECTRICAL EQUIPMENT

Номер: US20170127578A1
Автор: CULLEN John J. A.
Принадлежит: ROLLS-ROYCE PLC

This invention concerns a cryo-cooled electrical conduction network. The conduction network has an electrical network divided into two or more conductive sections, each section comprising electrical equipment (). The conductive network also has a coolant network for maintaining the temperature of a coolant in each section. The electrical equipment () and a corresponding portion of the coolant network of each section is housed in a section enclosure (). The coolant network includes a coolant interface () located between each section, wherein the coolant interface () is housed in an intermediate enclosure () that is isolatable from the section enclosures () in the electrical conduction network. 1. A cooled electrical conduction network comprising: an electrical network divided into two or more conductive sections , each section comprising electrical equipment; and a coolant network for maintaining the temperature of a coolant in each section , wherein the electrical equipment and a corresponding portion of the coolant network of each section is housed in a section enclosure , the coolant network comprising a coolant interface located between each section , wherein the coolant interface is housed in an intermediate enclosure that is isolatable from the section enclosures in the electrical conduction network.2. A cooled electrical conduction network according to claim 1 , wherein the electrical and coolant networks are continuous in normal operation and pass through a plurality of enclosures.3. A cooled electrical conduction network according to claim 1 , wherein the section of the electrical and coolant network within the corresponding enclosure is isolated from the enclosure interior claim 1 , the section of the electrical and coolant network passing through the enclosure interior within a vessel.4. A cooled electrical conduction network according to claim 1 , wherein the coolant interface comprises a coolant valve for isolating one section of the coolant network from ...

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Номер записи: 81
27-05-2021 дата публикации

HTS MAGNET SECTIONS

Номер: US20210159383A1
Автор: Noonan Paul, Wilson Martin
Принадлежит:

A segment of a field coil, a toroidal field coil, and a method of manufacturing is provided. The segment of a field coil is for use in a superconducting electromagnet. The segment includes an assembly for carrying electrical current in a coil of a magnet. The assembly includes a pre-formed housing comprising a channel configured to retain high temperature superconductor (HTS) tape, the channel including at least one pre-formed curved section. The assembly further includes a plurality of layers of HTS tape fixed within the channel. Wherein the pre-formed curved section has a radius of curvature which is less than a total thickness of the layers of HTS tape in that section divided by twice a maximum permitted strain of the HTS tape. 1. A segment of a field coil for a superconducting electromagnet , the segment comprising:an assembly for carrying electrical current in a coil of a magnet, the assembly comprising:a pre-formed housing comprising a channel configured to retain high temperature superconductor (HTS) tape, the channel including at least one pre-formed curved section; anda plurality of layers of HTS tape fixed within the channel;wherein the pre-formed curved section has a radius of curvature which is less than a total thickness of the layers of HTS tape in that section divided by twice a maximum permitted strain of the HTS tape.2. A segment of a field coil according to claim 1 , wherein the pre-formed curved section is curved in such a way that the layers of HTS tape fixed within the channel are bent only around an axis or axes parallel to a plane of the HTS tape.3. A segment of a field coil according to claim 2 , wherein the channel includes a twist and the HTS tape is curved in two planes around the axes parallel to the plane of the HTS tape as it is laid into the channel.4. A segment of a field coil according to claim 1 , wherein the pre-formed housing is substantially rigid.5. A segment of a field coil according to claim 1 , wherein a cross section of the ...

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Номер записи: 82
01-09-2022 дата публикации

CONDUCTOR SYSTEMS FOR SUSPENDED OR UNDERGROUND TRANSMISSION LINES

Номер: US20220277873A1
Автор: Ashworth Stephen Paul, HEIDEL Timothy David, MORICONI Franco
Принадлежит: VEIR, Inc.

A conductor assembly for transmitting power includes a former that defines a shape, a superconductor material disposed around the former, and a thermally insulating jacket (TIJ) disposed around and spaced apart from the superconductor material. An outer surface of the superconductor material and an inner surface of the TIJ can define an annulus through which a coolant can flow. The conductor assembly can also include an external layer, disposed around an outside surface of the TIJ, to provide structural support to the conductor assembly. The conductor assembly can also include an electrical insulation layer disposed around the outside surface of the TIJ or around the superconductor material. 134-. (canceled)35. A conductor assembly for transmitting power , comprising:a former configured to define a shape;a superconductor material disposed around the former;a thermally insulating jacket disposed around and spaced apart from the superconductor material such that an outer surface of the superconductor material and an inner surface of the thermally insulating jacket define an annulus through which a coolant can flow; anda coolant tube disposed in the conductor assembly and configured to transport the coolant, the coolant tube including an orifice configured to limit coolant flow out of the coolant tube,wherein the coolant transitions from a subcooled single-phase liquid to a gas as the coolant flows through the orifice.36. The conductor assembly of claim 35 , wherein the coolant tube is disposed in the former.37. The conductor assembly of claim 35 , further comprising:a cable disposed within the thermally insulating jacket and configured to provide structural support to the conductor assembly.38. The conductor assembly of claim 35 , further comprising:a tube disposed within the thermally insulating jacket and configured to provide structural support to the conductor assembly.39. The conductor assembly of claim 35 , further comprising:an electrical insulation layer ...

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Номер записи: 83
19-05-2016 дата публикации

Field Makeable Cryostat/Current Connections For An HTS Tape Power Cable

Номер: US20160141079A1
Автор: Radovinsky Alexey
Принадлежит:

A method of connecting prefabricated pieces of an HTS cable onsite is disclosed. This quick and reliable procedure of connecting pieces of HTS cable adds to the flexibility of designing and installing power transmission and distribution grids. The joint can also be dissembled such that it can be dismantled for replacing the cable on one side of the connection. The joint can then be reassembled with a new cable in its place. This facilitates repairing the electrical grid in case of local damage to the cable, as well as reconfiguring the grid in case this is required. The complexity of creating demountable HTS cable joints is due to the necessity to create and maintain continuity of several media across the joint along the length of the cable. Various combinations of design options satisfying these requirements are possible. 1. A connection for use with superconducting cables , each cable comprising a stacked HTS tapes covered by an inner wall , which in turn , is covered by an outer wall , the connection comprising:an electrical joint for connecting a first cable and a second cable;a first coupling to enclose a cryogenic space disposed inside the inner wall; anda second coupling to enclose a space between the inner wall and the outer wall.2. The connection of claim 1 , wherein the stacked HTS tapes have a step-shaped end claim 1 , and wherein the electrical joint comprises:a copper matrix disposed on the end of each step-shaped stack of HTS tapes;a thin layer of indium disposed between the copper matrices; andan electrical clamp compressing the HTS tapes together.3. The connection of claim 2 , wherein the step-shaped end of the first cable is inverted with respect to the step-shaped end of the second cable so as to form an overlapping region.4. The connection of claim 1 , wherein the first coupling comprises a seal fitting to attach the inner wall of the first cable and the inner wall of the second cable.5. The connection of claim 1 , wherein the second coupling ...

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Номер записи: 84
19-05-2016 дата публикации

SYSTEM AND METHOD FOR CRYOGENIC FLUID DELIVERY BY WAY OF A SUPERCONDUCTING POWER TRANSMISSION LINE

Номер: US20160141081A1
Автор: Carter Scott C., CARTER William A., Pylkkanen Ilkka T.
Принадлежит:

A combined electrical power and hydrogen energy infrastructure includes a superconducting electrical transmission line. One or more fluid paths are adapted to cool one or more superconductors of the electrical transmission line to a superconducting operating condition and to deliver hydrogen in a liquid state. The combined electrical power and hydrogen energy infrastructure also includes a supply apparatus to pump hydrogen into the one or more paths and to cool and pressurize the hydrogen to maintain the hydrogen in a liquid state. A distribution apparatus is operatively coupled to the one or more fluid paths at a different location along or at an end of the electrical transmission line to draw off the hydrogen for distribution of the hydrogen for use as a hydrogen fuel. An electrical transmission line and a method for supplying a fluid via an electrical transmission line are also described. 1. A combined electrical power and hydrogen energy infrastructure comprising:a superconducting electrical transmission line;one or more fluid paths adapted to cool one or more superconductors of said electrical transmission line to a superconducting operating condition and to deliver hydrogen in a liquid state;a supply apparatus to pump hydrogen into said one or more paths and to cool and pressurize said hydrogen to maintain said hydrogen in a liquid state; anda distribution apparatus operatively coupled to said one or more fluid paths at a different location along or at an end of said electrical transmission line to draw off said hydrogen for distribution of said hydrogen for use as a hydrogen fuel.2. The combined electrical power and hydrogen energy infrastructure of claim 1 , further comprising one or more boost stations operatively coupled to said electrical transmission line between said supply apparatus and said distribution apparatus.3. The combined electrical power and hydrogen energy infrastructure of claim 1 , wherein said electrical transmission line comprises a ...

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Номер записи: 85
07-08-2014 дата публикации

SUPERCONDUCTING CABLE, SUPERCONDUCTING CABLE LINE, METHOD OF INSTALLING SUPERCONDUCTING CABLE, AND METHOD OF OPERATING SUPERCONDUCTING CABLE LINE

Номер: US20140221213A1
Автор: FUKUDA Ryosuke
Принадлежит: Sumitomo Electric Industries, Ltd.

A superconducting cable includes a superconducting conductor layer; and a flow path of a coolant cooling the superconducting conductor layer to a superconducting state. This cable includes a core including the superconducting conductor layer and an insulating layer; a coolant tube forming a coolant flow path and arranged in parallel to the core so as to cool the superconducting conductor layer; and a housing tube of the core and the coolant tube. 1. A superconducting cable including a superconducting conductor layer and a flow path of a coolant cooling the superconducting conductor layer to a superconducting state , said superconducting cable comprising:a core having said superconducting conductor layer and an insulating layer;a coolant tube forming said coolant flow path and arranged in parallel to the core so as to cool said superconducting conductor layer; anda housing tube of said core and said coolant tube.2. The superconducting cable according to claim 1 , wherein a plurality of said coolant tubes are twisted so as to surround an outer circumference of said core.3. The superconducting cable according to claim 2 , wherein said plurality of coolant tubes surround a plurality of said cores.4. The superconducting cable according to claim 2 , whereinsaid core and the plurality of coolant tubes twisted to surround the outer circumference of the core are combined to form a composite core unit, anda plurality of the composite core units are provided within said housing tube.5. The superconducting cable according to claim 2 , whereinsaid core and a plurality of said coolant tubes twisted to surround the outer circumference of the core are combined to form a composite core unit, anda plurality of additional coolant tubes arranged to surround an outer circumference of the composite core unit are provided.6. The superconducting cable according to claim 2 , comprising a bundling band binding said plurality of coolant tubes together so as to prevent displacement of a ...

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Номер записи: 86
21-08-2014 дата публикации

METHOD OF COOLING A SUPERCONDUCTIVE CABLE

Номер: US20140235449A1
Автор: Marzahn Erik, Stemmle Mark, West Beate
Принадлежит:

A method of cooling at least one superconductive cable is disclosed which is arranged in a cryostat having at least one thermally insulated pipe with a free space surrounded by the pipe, wherein the cable and at least one tubular structure are arranged in the free space, and wherein a cooling agent is conducted through the free space from a feeding point located at one end to a distal end. The cooling agent is conducted through the cryostat and the tubular structure exclusively in one direction of the cable until it reaches its temperature of operation and is discharged to the outside at the distal end. After reaching the temperature of operation, the cooling agent is returned from the distal end of the arrangement through the tubular structure to the feeding point. 1. Method of cooling at least one superconductive cable , where the cable is arranged in a cryostat having at least one thermally insulated pipe , with the cryostat having a free space surrounded by the pipe , where the cable and at least one tubular structure are arranged in the free space of the cryostat , and where a cooling agent is conducted from a feeding point located at one end up to a distal end of the cryostat , said method comprising the steps of:that the cooling agent is conducted until the cable is cooled to its temperature of operation exclusively in one direction through the cryostat and the tubular structure and is discharged to the outside at the distal end, andthat the cooling agent is returned after reaching the temperature of operation from the distal end of the arrangement through the tubular structure to the feeding point.2. Method according to claim 1 , wherein a cable with a tubular core intended as a tubular structure is used claim 1 , wherein the cooling agent is returned through the core after reaching the temperature of operation from the distal end of the arrangement to the feeding point.3. Method according to claim 1 , wherein claim 1 , in addition to the cable claim 1 , at ...

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Номер записи: 87
31-05-2018 дата публикации

SUPERCONDUCTIVE WIRE AND CURRENT LIMITER

Номер: US20180152016A1
Автор: Honda Yoshihiro, ISOJIMA Shigeki
Принадлежит: Sumitomo Electric Industries, Ltd.

Provided is a superconductive wire comprising: a superconductive wire core which has a first main surface extending in the longitudinal direction and a second main surface located on the side opposite to the first main surface; a first heat dissipation member disposed on the first main surface; and a second heat dissipation member disposed on the second main surface. The first heat dissipation member is connected to the first main surface at a plurality of first connection locations lined up along the longitudinal direction. The second heat dissipation member is connected to the second main surface at a plurality of second connection locations lined up along the longitudinal direction. In the planar view from the thickness direction of the superconductive wire, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other. 1. A superconductive wire comprising:a superconductive wire core which has a first main surface extending in the longitudinal direction and a second main surface located on the side opposite to the first main surface and extending in the longitudinal direction;a first heat dissipation member disposed on the first main surface; anda second heat dissipation member disposed on the second main surface,the first heat dissipation member being connected to the first main surface at a plurality of first connection locations which are lined up along the longitudinal direction,the second heat dissipation member being connected to the second main surface at a plurality of second connection locations which are lined up along the longitudinal direction,in a planar view from the thickness direction of the superconductive wire, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other.2. The superconductive wire according to claim 1 , whereinin the ...

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Номер записи: 88
16-05-2019 дата публикации

Methods and Devices for Impedance Multiplication

Номер: US20190148848A1
Автор: Jin Stone Qiaodan, Najafi Faraz
Принадлежит:

The various embodiments described herein include methods, devices, and systems for fabricating and operating superconducting circuits. In one aspect, an electric circuit includes: (1) a first superconducting component having a first terminal, a second terminal, and a constriction region between the first terminal and the second terminal; (2) a second superconducting component having a third terminal and a fourth terminal; and (3) a first electrically-insulating component that thermally couples the first superconducting component and the second superconducting component such that heat produced at the constriction region is transferred through the first component to the second superconducting component. 1. An electric circuit , comprising:a first superconducting component having a first terminal, a second terminal, and a constriction region between the first terminal and the second terminal;a second superconducting component having a third terminal and a fourth terminal; anda first electrically-insulating component that thermally couples the first superconducting component and the second superconducting component such that heat produced at the constriction region is transferred through the first component to the second superconducting component.2. The circuit of claim 1 , wherein the first electrically-insulating component is an electrically-insulating claim 1 , thermally-conductive connector positioned between the first superconducting component and the second superconducting component.3. The circuit of claim 2 , wherein the second superconducting component includes a plurality of regions between the third terminal and the fourth terminal; andthe circuit includes a plurality of electrically-insulating components positioned so as to thermally couple the plurality of regions and facilitate transition of the plurality of regions to the non-superconducting state via heat transfer through the plurality of regions.4. The circuit of claim 3 , wherein heat transferred by the ...

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Номер записи: 89
09-06-2016 дата публикации

INTEGRATED SUPERCONDUCTOR DEVICE AND METHOD OF FABRICATION

Номер: US20160163424A1
Автор: Murphy Paul, Sullivan Paul, WANG Connie P.
Принадлежит: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATED, INC.

In one embodiment, a method to form a superconductor device includes depositing a crystalline layer having a preferred crystallographic orientation on a substrate and forming an oriented superconductor layer comprising an oriented superconductor material on the crystalline layer. A metallic layer is formed on the superconductor layer and a mask is provided proximate the substrate to define a protected portion of the oriented superconductor layer and an exposed portion of the oriented superconductor layer. The exposed portion of the oriented superconductor layer is removed without etching the protected portion of the oriented superconductor layer. 1. A method to form a superconductor device , comprising:depositing a crystalline layer having a preferred crystallographic orientation on a substrate;forming an oriented superconductor layer comprising an oriented superconductor material on the crystalline layer;forming a metallic layer on the superconductor layer;providing a mask proximate the substrate to define a protected portion of the oriented superconductor layer and an exposed portion of the oriented superconductor layer; andremoving the exposed portion of the oriented superconductor layer without etching the protected portion of the oriented superconductor layer.2. The method of claim 1 , wherein the providing the mask comprises:forming the metallic layer as a blanket layer having a surface that forms an interface with the oriented superconductor layer; andforming mask features on the metallic layer that define a covered portion of the metallic layer and open portion of the metallic layer that cover the protected portion and exposed portion of the superconductor layer, respectively.3. The method of claim 2 , further comprising removing the open portion of the metallic layer without etching the covered portion of the metallic layer.4. The method of claim 1 , wherein providing the mask comprises depositing the metallic layer on the oriented superconductor layer in a ...

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Номер записи: 90
09-06-2016 дата публикации

Methods and systems for preparing superconductors for reaction and integration

Номер: US20160163427A1
Автор: Hem Kanithi, Taeyoung Pyon
Принадлежит: Luvata Waterbury Inc

A method and system for manufacturing a superconducting material is described. In one embodiment, a layer of refractory cushion is placed over a spool. A first layer of superconducting cable is wound over the first layer of refractory cloth. The superconducting cable is reaction heat-treated on the spool. A first layer of refractory fabric can be placed over the layer of refractory cushion. One or more adjustment mechanisms can be disposed between the first layer of the superconducting cable and the spool.

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Номер записи: 91
28-08-2014 дата публикации

CRYOGENIC HEAT SINK FOR GAS COOLED SUPERCONDUCTING POWER DEVICES

Номер: US20140243206A1
Автор: Crook Danny G., Graber Lukas, Pamidi Sastry
Принадлежит: The Florida State University Research Foundation, Inc.

A heat sink and method for gaseous cooling of superconducting power devices. Heat sink is formed of a solid material of high thermal conductivity and attached to the area needed to be cooled. Two channels are connected to the heat sink to allow an inlet and an outlet for cryogenic gaseous coolant. Inside the hollow heat sink are fins to increase metal surface in contact with the coolant. The coolant enters through the inlet tube, passes through the finned area inside the heat sink and exits through the outlet tube. 1. A method of maintaining an operating cryogenic temperature range of a low temperature system , comprising the steps of:coupling an attachment surface of a heat intercept to a temperature-critical aspect of said low temperature system, said attachment surface conforming to the shape of said temperature-critical aspect, said attachment surface formed of a heat conductive material,said heat intercept including a heat sink, an inlet channel, and an outlet channel, said inlet channel and said outlet channel extending away from said heat sink, said heat sink positioned in abutting relation to said temperature-critical aspect of said low temperature system,said heat sink having a first interior with a plurality of fins affixed therewithin, said inlet channel having a second interior, said outlet channel having a third interior,said first interior of said heat sink being in open communication with said second interior of said inlet channel, said first interior of said heat sink being in open communication with said third interior of said outlet channel; andinjecting a cryogenic gaseous medium into said inlet channel, wherein said cryogenic gaseous medium enters said heat sink through said inlet channel and exits said heat sink through said outlet channel,wherein said cryogenic gaseous medium has a higher temperature when exiting said heat sink than when entering said heat sink.2. A method as in claim 1 , further comprising:said low temperature system being a ...

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Номер записи: 92
22-09-2022 дата публикации

CONNECTION STRUCTURE OF SUPERCONDUCTING LAYER, SUPERCONDUCTING WIRE, SUPERCONDUCTING COIL, AND SUPERCONDUCTING DEVICE

Номер: US20220302609A1
Автор: Albessard Keiko, Eguchi Tomoko, HAGIWARA Masaya, Hattori Yasushi
Принадлежит:

A connection structure of a superconducting layer of an embodiment incudes a first superconducting member including a first superconducting layer, and extends in a first direction, a second superconducting member including a second superconducting layer facing the first superconducting layer, and extends in the first direction, the second superconducting member having a first region, a second region, and a third region which is separated in the second direction from the second region, and a connection layer that contains a rare earth element (RE), barium (Ba), copper (Cu), and oxygen (O), and connects the first superconducting layer and the second superconducting layer. The first superconducting layer is present in a third direction between the second region and the third region, the third direction being perpendicular to the first direction and perpendicular to the second direction. 1. A connection structure of a superconducting layer comprising:a first superconducting member including a first superconducting layer and a first substrate, the first substrate supporting the first superconducting layer, and the first superconducting member extending in a first direction;a second superconducting member including a second superconducting layer and a second substrate, the second superconducting layer facing the first superconducting layer, the second substrate supporting the second superconducting layer, the second superconducting member extending in the first direction, the second superconducting member having a first region, a second region, and a third region, a width of the first region in a second direction perpendicular to the first direction being a first width, a width of the second region in the second direction being a second width, a width of the third region in the second direction is a third width, the third region being separated in the second direction from the second region, the second width being smaller than the first width, the third width being ...

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Номер записи: 93
14-06-2018 дата публикации

Device For DC Current Transmission And Cooling Method

Номер: US20180166188A1
Автор: Arndt Tabea, Bauer Anne, Grundmann Joern, IMAMOVIC DENIS, Nick Wolfgang, TENZER Michael, Van Hasselt Peter
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

The present disclosure relates to DC transmission. Some embodiments may include a device for DC transmission comprising: a superconducting transmission line including a superconducting conductor element; and a cooling device for cooling an inner region of the transmission line with a fluid coolant to a temperature below a critical temperature of the superconducting conductor element. The superconducting transmission line may comprise a vacuum-insulated sleeve thermally isolating the inner region of the transmission line from a warmer outer surrounding area. The cooling device may comprise a feed device feeding coolant at an end region of the transmission line into the inner region of the transmission line. The transmission line may be free of internally arranged feed devices for feeding coolant at locations away from the end region. 1. A device for DC transmission , the device comprising:a superconducting transmission line including a superconducting conductor element; anda cooling device for cooling an inner region of the transmission line with a fluid coolant to a temperature below a critical temperature of the superconducting conductor element;wherein the superconducting transmission line comprises a vacuum-insulated sleeve thermally isolating the inner region of the transmission line from a warmer outer surrounding area;the cooling device comprises a feed device feeding a fluid coolant at an end region of the transmission line into the inner region of the transmission line;andthe transmission line is free of internally arranged feed devices for feeding coolant at locations away from the end region.2. The device as claimed in claim 1 , wherein the transmission line further comprises a coolant channel surrounding the superconducting conductor element claim 1 , for transporting the fluid coolant along a longitudinal direction of the transmission line.3. The device as claimed in claim 1 , whereinthe transmission line comprises:an electrically conductive line shield ...

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Номер записи: 94
28-05-2020 дата публикации

Methods and Devices for Impedance Multiplication

Номер: US20200169012A1
Автор: Jin Stone Qiaodan, Najafi Faraz
Принадлежит:

The various embodiments described herein include methods, devices, and systems for fabricating and operating superconducting circuits. In one aspect, an electric circuit includes: (1) a first superconducting component having a first terminal, a second terminal, and a constriction region between the first terminal and the second terminal; (2) a second superconducting component having a third terminal and a fourth terminal; and (3) a first electrically-insulating component that thermally couples the first superconducting component and the second superconducting component such that heat produced at the constriction region is transferred through the first component to the second superconducting component. 1. An electrical circuit , comprising:a first superconducting component having a first terminal, a second terminal, and a constriction region between the first terminal and the second terminal;a second superconducting component having a third terminal and a fourth terminal; anda first electrically-insulating component that thermally couples the first superconducting component and the second superconducting component such that heat produced at the constriction region is transferred through the first electrically-insulating component to the second superconducting component, wherein the first electrically-insulating component comprises a dielectric material.2. The circuit of claim 1 , wherein the first electrically-insulating component is an electrically-insulating claim 1 , thermally-conductive connector positioned between the first superconducting component and the second superconducting component.3. The circuit of claim 2 , wherein the second superconducting component includes a plurality of regions between the third terminal and the fourth terminal; andthe circuit includes a plurality of electrically-insulating components positioned so as to thermally couple the plurality of regions and facilitate transition of the plurality of regions to a non-superconducting state ...

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Номер записи: 95
28-06-2018 дата публикации

SUPERCONDUCTING WIRE

Номер: US20180182513A1
Автор: Choi Chang Youl, KIM Young Woong, LEE Seok Ju, NA Jin Bae, Ryu Cheol Hwi
Принадлежит:

The present invention relates to a superconducting wire having improved electrical and physical properties. 1. A superconducting wire having a width of 0.4 mm to 0.5 mm and a thickness of 0.3 mm to 0.5 mm and formed of YBCO or ReBCO (Re═Sm , Gd , Nd , Dy , Ho) as a superconductive material , wherein a critical current DC Ic is in a range of 150 A to 500 A at a temperature of 77 K , under pressure of 1 atmosphere , and at a self-field.2. The superconducting wire of claim 1 , wherein a critical current when bending stress is applied to the superconducting wire using two rollers each having a diameter of 35 mm after the superconducting wire is sequentially bent in different directions is greater than or equal to 95% of the critical current DC Ic.3. The superconducting wire of claim 1 , wherein a critical current when double bending stress is applied to the superconducting wire using four rollers each having a diameter of 50 mm after the superconducting wire is sequentially bent in different directions is greater than or equal to 95% of the critical current DC Ic.4. The superconducting wire of claim 1 , wherein a tensile critical current when a tensile force of 250 MPa or a tensile strength extending the superconducting wire by 0.2% is applied in a lengthwise direction of the superconducting wire is greater than or equal to 95% of the critical current DC Ic.5. The superconducting wire of claim 1 , wherein a torsion critical current when the superconducting wire is twisted at intervals of 200 mm in a lengthwise direction of the superconducting wire is greater than or equal to 95% of the critical current DC Ic.6. The superconducting wire of claim 1 , wherein a critical current when the superconducting wire is wound around a former of a superconducting cable at a pitch of about 220 mm and a load of 3 kg to 8 kg is applied in a lengthwise direction of the superconducting wire is greater than or equal to 95% of the critical current DC Ic.7. The superconducting wire of claim ...

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Номер записи: 96
30-06-2016 дата публикации

CONNECTION STRUCTURE OF SUPERCONDUCTING CABLES, SUPERCONDUCTING CABLE, AND CURRENT TERMINAL STRUCTURE AT END PORTION OF SUPERCONDUCTING CABLE

Номер: US20160190788A1
Автор: LIU Jin, Mitsuhashi Takaharu, NAKAYAMA Ryou, Nomura Tomoya, Teng Jun, Yagi Masashi
Принадлежит: FURUKAWA ELECTRIC CO., LTD.

A connection structure is provided for a pair of superconducting cables each including a cable core including a former and a superconductive conductor layer composed of a plurality of superconducting wires arranged along an outer circumference of the former. The superconducting wire has a laminated structure including a base plate and a superconducting layer formed on a side closer to one of principal surfaces of the base plate. One of the superconducting cables and another of the superconducting cables are connected with each other by a first superconducting wire and a second superconducting wire such that the superconducting layers of the first superconducting wire and the second superconducting wire face each other. 1. A connection structure of a pair of superconducting cables each including a cable core including a former and a superconductive conductor layer composed of a plurality of superconducting wires arranged along an outer circumference of the former , whereinEach of the plurality of superconducting wires has a laminated structure including a base plate and a superconducting layer formed on a side closer to one of principal surfaces of the base plate,at least one of the plurality of superconducting wires in the superconductive conductor layer of one of the superconducting cables is a first superconducting wire in which the superconducting layer is arranged inside of the base plate along a radial direction of the cable core,at least one of the plurality of superconducting wires in the superconductive conductor layer of another of the superconducting cables is a second superconducting wire in which the superconducting layer is arranged outside of the base plate along a radial direction of the cable core, andthe one of the superconducting cables and the another of the superconducting cables are connected with each other by the first superconducting wire and the second superconducting wire such that the superconducting layers of the first superconducting ...

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Номер записи: 97
16-07-2015 дата публикации

SUPERCONDUCTING WIRE MATERIAL, SUPERCONDUCTING WIRE MATERIAL CONNECTION STRUCTURE, SUPERCONDUCTING WIRE MATERIAL CONNECTION METHOD, AND TERMINAL TREATMENT METHOD OF SUPERCONDUCTING WIRE MATERIAL

Номер: US20150200041A1
Автор: Mitsuhashi Takaharu, NAKAYAMA Ryo, Yagi Masashi
Принадлежит:

Superconducting wire material, superconducting wire material connection structure, superconducting wire material connection method, and treatment method of superconducting wire material end are shown. According to one implementation, a superconducting wire material connection structure includes, a first superconducting wire material, a second superconducting wire material, and a third superconducting wire material. The first superconducting wire material and the second superconducting wire material each include an end provided with a concave section in which at least a superconducting layer is removed and a filling section in which filling material is filled in the concave section. The first superconducting wire material and the second superconducting wire material are positioned so that the ends oppose to each other. A third superconducting wire material is connected to both the first superconducting wire material and the second superconducting wire material. 1. A superconducting wire material connection structure which connects superconducting wire material to each other , the superconducting wire material including a superconducting layer on a substrate , the superconducting wire material connection structure comprising:a first superconducting wire material and a second superconducting wire material each including an end provided with:a concave section in which at least the superconducting layer is removed; anda filling section in which filling material is filled in the concave section, wherein the first superconducting wire material and the second superconducting wire material are positioned so that the respective ends oppose to each other; anda third superconducting wire material which is connected to both the first superconducting wire material and the second superconducting wire material.2. The superconducting wire material connection structure of claim 1 , wherein the third superconducting wire material is connected to the first superconducting wire material ...

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Номер записи: 98
06-07-2017 дата публикации

Superconductor Article with Directional Flux Pinning

Номер: US20170194078A1
Автор: Chen Yimin, Selvamanickam Venkat
Принадлежит:

A method and composition for doped HTS tapes having directional flux pinning and critical current. 1. A method of using a superconducting tape , comprising:applying a magnetic field parallel to a surface of a superconducting tape, wherein the magnetic field is applied at about 0.1 T and the superconducting tape comprises a plurality of nanocolumns oriented perpendicular to the surface of the superconducting tape;generating, in response to the applying the magnetic field, a critical current;removing the magnetic field; andretaining, subsequent to the removing of the magnetic field, at least 90% of the critical current.2. The method of claim 1 , wherein the superconducting tape comprises copper and a rare-earth metals content of at least two of Gd claim 1 , Y claim 1 , Sm claim 1 , Nd claim 1 , Eu claim 1 , Dy claim 1 , Ho claim 1 , Er or Yb.3. The method of claim 2 , wherein the superconducting tape comprises a ratio of total rare earth metals content to copper of at least 1.5:3.4. The method claim 3 , wherein the rare-earth metals content comprises Sm and Y.5. The method of claim 3 , wherein the rare-earth metals content comprises Gd and Y.6. The method of claim 5 , further comprising a ratio of Gd to Y of about 1:1.7. The method of claim 2 , further comprising an at least one dopant comprising Ta claim 2 , Hf claim 2 , Sn claim 2 , Nb claim 2 , Ti or Ce.8. The method of claim 7 , wherein the superconducting tape further comprises a dopant to copper ratio of at least about 0.05 dopant to at least about 3 copper.9. The method of claim 7 , wherein the dopant comprises Zr.10. The method claim 1 , further comprising fabricating a portion of the superconducting tape by metal organic chemical vapor deposition (MOCVD).11. A method using a superconducting tape claim 1 , comprising:applying a magnetic field parallel to a surface of a superconducting tape, wherein the magnetic field is applied at about 0.5 T and the superconducting tape comprises a buffer disposed on a ...

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Номер записи: 99
11-06-2020 дата публикации

SERIES-CONNECTED SUPERCONDUCTING MAGNET CABLES

Номер: US20200185129A1
Автор: VAN DER LAAN Daniël Cornelis
Принадлежит: Advanced Conductor Technologies LLC

A superconducting device includes a superconducting cable having a plurality of superconducting tapes in a plurality of phases, including a first phase, and at least one further phase. One or more superconducting tapes of the first phase is in electrical contact with one or more superconducting tapes of the at least one further phase through at least one resistive barrier that prevents current from passing between the first phase and the at least one further phase in the absence of a voltage between one or more of the superconducting tapes of the first phase or the at least one further phase. The first phase is electrically connected in series to at least one further phase. 1. A superconducting device , comprising:a superconducting cable having first and second ends and a plurality of superconducting tapes in a plurality of phases extending between the first and second ends of the cable, the plurality of phases including a first phase, and at least one further phase, each phase having one or more of the superconducting tapes;wherein the one or more superconducting tapes of the first phase is in electrical contact with one or more superconducting tapes of the at least one further phase through at least one resistive barrier that prevents current from passing between the first phase and the at least one further phase in the absence of a voltage between one or more of the superconducting tapes of the first phase or the at least one further phase; andwherein the first phase on the first end of the superconducting cable is electrically connected in series to the at least one further phase on the second end of the superconducting cable.2. A superconducting device of claim 1 , wherein the first end of the superconducting cable has a tapered configuration that exposes the one or more of the superconducting tapes of the first phase; wherein the second end of the superconducting cable has a tapered configuration that exposes one or more of the superconducting tapes of the at ...

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Номер записи: 100