[go: up one dir, main page]

EP0958585B1 - Installation d'alimentation en courant pour un dispositif electrique refroidi - Google Patents

Installation d'alimentation en courant pour un dispositif electrique refroidi Download PDF

Info

Publication number
EP0958585B1
EP0958585B1 EP98907881A EP98907881A EP0958585B1 EP 0958585 B1 EP0958585 B1 EP 0958585B1 EP 98907881 A EP98907881 A EP 98907881A EP 98907881 A EP98907881 A EP 98907881A EP 0958585 B1 EP0958585 B1 EP 0958585B1
Authority
EP
European Patent Office
Prior art keywords
power supply
regenerator
pulse tube
supply apparatus
cold head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98907881A
Other languages
German (de)
English (en)
Other versions
EP0958585A1 (fr
Inventor
Florian Steinmeyer
Hans-Peter KRÄMER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0958585A1 publication Critical patent/EP0958585A1/fr
Application granted granted Critical
Publication of EP0958585B1 publication Critical patent/EP0958585B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
    • H01F6/065—Feed-through bushings, terminals and joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1406—Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1408—Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1418—Pulse-tube cycles with valves in gas supply and return lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1419—Pulse-tube cycles with pulse tube having a basic pulse tube refrigerator [PTR], i.e. comprising a tube with basic schematic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
    • F25B2309/14241—Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/006—Thermal coupling structure or interface

Definitions

  • the invention relates to a power supply device with at least one between a higher temperature level and a lower temperature level electrical Pipe at its low-temperature end connected to a cooled electrical device and thermally coupled to a cold head of a pulse tube cooler which has a regenerator and a pulse tube.
  • a power supply device is e.g. from "Advances in Cryogenic Engineering ", Vol. 41, 1996, pages 1443 until 1447.
  • cryogenic systems One of the main problems in the design of cryogenic systems is the efficient introduction of relatively large currents into superconducting or semiconducting devices, such as are provided, for example, for magnetic field generation or for short-circuit current limitation or for voltage transformation or for current transmission.
  • the greatest thermal leak in an insulated cryocontainer is often caused by the at least one electrical conductor of the power supply device, which is between a higher temperature level, in particular at room temperature of about 300 K, and a lower temperature level of, for example, 77 K, the temperature of the liquid nitrogen LN 2 . runs on which the electrical device can be located. If the electrical line of the power supply device running between these temperature levels cannot be constructed with little loss and the resulting heat loss is not effectively dissipated, the cooling effort alone can question the technical or economic meaning of the entire system.
  • Line cooled power supplies are generally cooled only by conduction from a cold end. If you optimize the dimensions so that the sum of the Joule losses of the metal of the line with a specific resistance ⁇ (T) and due to the heat transport determined by the temperature-dependent thermal conductivity ⁇ (T) is minimal, then the specific loss is, that is Heat input per unit current, for copper about 43 W / kA when considering a single electrical line (see the magazine "IEEE Transactions on Magnetics", Vol. MAG-13, No. 1, 1977, pages 690 to 693).
  • the enthalpy of a vaporized coolant for example of LN 2 at 77 K or of liquid helium LHe of 4.2 K, is used to dissipate the heat loss introduced in countercurrent. This enables the specific loss between 300 K and 77 K to be reduced to approximately 25 W / kA, with approximately 0.56 liters of LN 2 evaporating per hour, kiloampere and power supply line.
  • the amount of heat introduced into a cryostat dictates given a coolant supply, the service life of the cryogenic System that requires replenishment, or the size of one Cooling unit if no cooling liquids are used. It is also important for a user how high the necessary power at room temperature is provided for cooling must become. This service is e.g. in one Compressor of a cooling unit or in the manufacture of the liquid coolant consumed.
  • the object of the present invention is based on this State of the art an improved power supply device with reduced heat loss, reduced space requirements and to provide a simpler structure.
  • a pulse tube cooler integral part of the device. It takes advantage of the fact that the cold head of such a pulse tube cooler compared to cold heads of conventional cryocoolers, e.g. work according to the Gifford-McMahon principle, is a simple component with no mechanically moving parts is advantageously inexpensive to manufacture and that due to the lack of further electrical drives against high voltages is isolable.
  • the power supply device according to the invention thus represents an intermediate form in terms of heat technology between a line and exhaust-cooled power supply that does not require a flowing liquid coolant and one in relation to a line-cooled power supply causes a comparatively lower heat input. It thus combines the advantages of the two conventional ones Types of power supply.
  • parts of a cold head 3 of a pulse tube cooler are used to conduct the electrical power between a warmer side, in particular at room temperature RT, and a colder side, for example at low temperature TT of 77 K LN 2 side.
  • the cold head 3 projects at least with its colder part into the vacuum space V of a vacuum vessel 4 or a cryostat.
  • the interior of a (bath) cryostat can also be provided with the cold head or cold head part.
  • the cold head has a regenerator 6 and a pulse tube 7, which are connected to one another at their low-temperature ends via an overflow line 15.
  • the power line forms the cladding tube 6a of the regenerator 6 and / or the cladding tube 7a of the pulse tube 7 in a coaxial or parallel design.
  • either the regenerator and the pulse tube can be electrically insulated from one another and form two electrical lines which are at different potential, as is assumed in the exemplary embodiment shown. Or these parts can also be connected in parallel.
  • 8a and 8b also denote the power connections at the warmer temperature level RT, 9a and 9b the corresponding power connections at the lower temperature level TT, with 10 an installation opening for the cold head 3 in the vacuum or cryostat vessel 4, with 11 the cold head 3 on its warmer side, insulating mounting flange, which ensures a vacuum or gas-tight seal of the installation opening 10, with 13 a gas inlet and / or outlet on the regenerator, with 14 a gas inlet and / or outlet on the pulse tube , with 15 the, for example, electrically insulating overflow line between the regenerator and the pulse tube, and with 16 a connection for a thermal busbar.
  • An external power supply unit located at room temperature RT is to be connected to the power connections 8a and 8b, while a cooled electrical device, which is generally to be kept at the low temperature TT, is connected to the power connections 9a and 9b.
  • the electrical device can be, in particular, a cable, a current limiter, a magnetic field winding or parts of electronics, each with superconducting material.
  • LHe cooling technology can generally be used for classic superconductor materials such as Nb 3 Sn or NbTi and for metal oxide superconductor materials with a high transition temperature such as Y-Ba-Cu-O or (Bi, Pb) -Sr-Ca-Cu-O- Typically an LN 2 cooling technology can be provided.
  • the electrical device can also have normal-conducting or semiconducting parts to be cooled and need not necessarily be at exactly the temperature level TT.
  • the embodiment shown in Figure 2 of a designated 22 Power supply device differs from that Embodiment according to Figure 1 in that its cold head 23 one Pulse tube cooler only by means of its regenerator 26 Power supply is used.
  • the regenerator contains as current-carrying part in the form of a metallic body e.g. a tightly rolled metal net packed in its cladding tube 26a 26b.
  • a porous one can also be used Sintered metal granule body or a bundle of thinner Wires or at least a thin, rolled or folded one Serve metal strips or a number of profile sheets.
  • This metallic bodies are on the warm and cold end e.g. electrically contacted by soldering, welding or pressing.
  • a bundle of thin wires is particularly suitable for an introduction of alternating current, since the wire thickness is the skin depth can be adjusted.
  • 2 is compared to a stack of fine wire nets the heat conduction in the regenerator is greatly increased, so that this Embodiment preferably only for comparatively large Currents is considered.
  • an electrical Isolation advantageous by dielectric, e.g. plastics and / or ceramics.
  • dielectric e.g. plastics and / or ceramics.
  • BeO or aluminum nitride are also preferred to use, which advantageously have a high thermal conductivity.
  • Radiation shields or electrical or magnetic apparatus be thermally coupled.
  • a separation of potentials between a compressor with possibly electrical Valve train and the power supply device can e.g. through an insulating connecting pipe, for example made of plastic, fiber-reinforced plastic or ceramic can be reached.
  • the pulse tube coolers used for a power supply device are based on embodiments known per se (cf., for example, "Cryocoolers 8 ", Plenum Press, New York, 1994, pages 345 to 410; or "Advances in Cryogenic Engineering", vol. 35, plenum Press, New York, 1990, pages 1191 to 1205; or "INFO PHYS TECH” of the VDI Technology Center, No. 6 / February 1996, with the title: “Pulse tube cooler: New refrigeration machines for superconductivity and cryoelectronics", 4 pages; or US 5,335,505 A ).
  • Such a pulse tube cooler has, according to FIG.
  • a cold head 33 which is generally surrounded by an insulating vacuum, at least with its colder part.
  • This cold head has two tubes connected to each other.
  • a tube is designed as a so-called regenerator 36 and contains in its interior a body which stores the gas heat periodically, for example in the form of stacked metal meshes 36a with a small mesh size.
  • this body is used for power conduction.
  • the other tube represents a so-called pulse tube 37, which only has heat exchangers 38 or 39 formed at each of its warm and cold ends, for example formed by fine copper networks, and is otherwise hollow.
  • a first supply line 41 serves to supply the regenerator 36 with a generally uncooled, in particular at room temperature RT working gas, for example He gas, under high pressure via the valve train 42a pulsating at a frequency, for example between 2 Hz and 50 Hz.
  • working gas is also discharged again via the supply line 41 by means of a valve drive 42b.
  • the pulse tube 37 can be connected at its room temperature end via a connecting channel (not shown in the figure) to a second supply line which, depending on the design of the pulse tube cooler, leads to a further valve train (not shown in the figure) or to a buffer volume of the working gas, for example a few liters in size leads (see Figures 5 to 7).
  • FIG. 3 also shows a compressor 43 which is connected to the first connecting line 41 by means of an outgoing line 41a with a (high-pressure) valve 42a for the working gas under high pressure and a return line 41b with a (low-pressure) valve 42b for the working gas is connected under low pressure.
  • Embodiments of corresponding phase shifters on the warm 5 to 7 show the end of the pulse tube, with a Cold head 33 according to FIG. 3 is used as a basis.
  • a buffer volume 51 with throttle 52 is provided for this purpose.
  • a corresponding phase shifter can be used also be formed with four valves 42a, 42b, 55a and 55b.
  • current supply devices according to the invention can also be based on two-stage and multi-stage variants of pulse tube coolers (cf., for example, magazine “Cryogenics", vol. 34, 1994, pages 259 to 262 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (11)

  1. Dispositif d'alimentation en courant (2, 22) comportant au moins un conducteur électrique qui s'étend entre un niveau à température supérieure (RT) et un niveau à température inférieure (TT), qui est relié à son extrémité côté basse température à un dispositif électrique refroidi et qui est couplé thermiquement à une tête froide (3, 23) d'un radiateur tubulaire pulsé comportant un régénérateur (6, 26) et un tube pulsé (7, 27), caractérisé par le fait qu'au moins un tronçon du conducteur électrique est formé par au moins une partie (6a, 7a, 26b) de la tête froide (3, 23).
  2. Dispositif d'alimentation en courant selon la revendication 1, caractérisé par le fait qu'une gaine (6a) du régénérateur (6) et/ou une gaine (7a) du tube pulsé (7) est prévue comme tronçon de conducteur.
  3. Dispositif d'alimentation en courant selon la revendication 1 ou 2, caractérisé par le fait qu'un corps métallique (26b) à l'intérieur d'une gaine (26a) du régénérateur (26) est prévu comme tronçon de conducteur.
  4. Dispositif d'alimentation en courant selon la revendication 3, caractérisé par le fait que le corps métallique (26b) est un réseau métallique ou un corps fritté ou un faisceau de fils ou au moins une bande de tôle.
  5. Dispositif d'alimentation en courant selon l'une des revendications 1 à 4, caractérisé par le fait que deux tronçons de conducteur différents, isolés l'un de l'autre, sont formés avec le régénérateur (6) et avec le tube pulsé (7).
  6. Dispositif d'alimentation en courant selon l'une des revendications 1 à 4, caractérisé par le fait que deux tronçons de conducteur branchés électriquement en parallèle sont formés avec le régénérateur (6) et avec le tube pulsé (7).
  7. Dispositif d'alimentation en courant selon l'une des revendications 1 à 6, caractérisé par une disposition parallèle, dans l'espace, du régénérateur (6) et du tube pulsé (7).
  8. Dispositif d'alimentation en courant selon l'une des revendications 1 à 6, caractérisé par une disposition concentrique, dans l'espace, du régénérateur et du tube pulsé.
  9. Dispositif d'alimentation en courant selon l'une des revendications 1 à 8, caractérisé par le fait que la tête froide est conçue à plusieurs étages.
  10. Dispositif d'alimentation en courant selon l'une des revendications 1 à 9, caractérisé par le fait que la tête froide (3, 23) pénètre au moins avec sa partie plus froide dans la chambre à vide (V) d'un flacon à vide (4) ou à l'intérieur d'un cryostat.
  11. Dispositif d'alimentation en courant selon l'une des revendications 1 à 10, caractérisé par un raccordement électrique à un dispositif supraconducteur.
EP98907881A 1997-02-07 1998-02-02 Installation d'alimentation en courant pour un dispositif electrique refroidi Expired - Lifetime EP0958585B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19704485 1997-02-07
DE19704485A DE19704485C2 (de) 1997-02-07 1997-02-07 Stromzuführungsvorrichtung für eine gekühlte elektrische Einrichtung
PCT/DE1998/000285 WO1998035365A1 (fr) 1997-02-07 1998-02-02 Installation d'alimentation en courant pour un dispositif electrique refroidi

Publications (2)

Publication Number Publication Date
EP0958585A1 EP0958585A1 (fr) 1999-11-24
EP0958585B1 true EP0958585B1 (fr) 2003-05-21

Family

ID=7819479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98907881A Expired - Lifetime EP0958585B1 (fr) 1997-02-07 1998-02-02 Installation d'alimentation en courant pour un dispositif electrique refroidi

Country Status (5)

Country Link
US (1) US6112527A (fr)
EP (1) EP0958585B1 (fr)
JP (1) JP3898231B2 (fr)
DE (2) DE19704485C2 (fr)
WO (1) WO1998035365A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6286318B1 (en) * 1999-02-02 2001-09-11 American Superconductor Corporation Pulse tube refrigerator and current lead
WO2000057530A1 (fr) * 1999-03-18 2000-09-28 Siemens Aktiengesellschaft Dispositif presentant une unite electronique de puissance pour des systemes a basse temperature
EP1063482A1 (fr) * 1999-06-24 2000-12-27 CSP Cryogenic Spectrometers GmbH Dispositif frigorifique
WO2001001048A1 (fr) * 1999-06-24 2001-01-04 Csp Cryogenic Spectrometers Gmbh Dispositif de refroidissement
DE29911071U1 (de) * 1999-06-24 2000-12-14 CSP Cryogenic Spectrometers GmbH, 85737 Ismaning Kühlvorrichtung
EP1072851A1 (fr) * 1999-07-29 2001-01-31 CSP Cryogenic Spectrometers GmbH Dispositif frigorifique
DE10035859A1 (de) * 2000-07-24 2002-02-07 Abb Research Ltd Wechselstrom-Durchführung
JP4799757B2 (ja) * 2001-04-26 2011-10-26 九州電力株式会社 超電導磁石
TW550366B (en) * 2001-06-21 2003-09-01 Air Water Inc Cold storage type freezing machine
JP4799770B2 (ja) * 2001-07-09 2011-10-26 九州電力株式会社 超電導磁石
GB0125189D0 (en) * 2001-10-19 2001-12-12 Oxford Magnet Tech A pulse tube refrigerator
US6698224B2 (en) * 2001-11-07 2004-03-02 Hitachi Kokusai Electric Inc. Electronic apparatus having at least two electronic parts operating at different temperatures
US7174721B2 (en) * 2004-03-26 2007-02-13 Mitchell Matthew P Cooling load enclosed in pulse tube cooler
US8783045B2 (en) * 2005-01-13 2014-07-22 Sumitomo Heavy Industries, Ltd. Reduced input power cryogenic refrigerator
JP5202220B2 (ja) * 2008-09-30 2013-06-05 三洋電機株式会社 画像表示装置
JP5241414B2 (ja) * 2008-09-30 2013-07-17 三洋電機株式会社 画像表示装置
US20180096018A1 (en) 2016-09-30 2018-04-05 Microsoft Technology Licensing, Llc Reducing processing for comparing large metadata sets
EP3982378A1 (fr) * 2020-10-09 2022-04-13 Koninklijke Philips N.V. Système d'aimants supraconducteurs dépourvus de cryogène

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6910446U (de) * 1969-03-14 1970-01-29 Friedrich Wilhelm D Burmeister Trog fuer foerderschnecken zum austragen von fluessigkeiten oder schlaemmen, insbesondere aus sedimentationsbecken von wasseraufbereitungsanlagen
US3654377A (en) * 1969-12-15 1972-04-04 Gen Electric Electrical leads for cryogenic devices
JPS5735384A (en) * 1980-07-04 1982-02-25 Japan Atom Energy Res Inst Large current lead wire for superconductive device
DE3743033A1 (de) * 1987-12-18 1989-06-29 Asea Brown Boveri Magnetsystem
US5335505A (en) * 1992-05-25 1994-08-09 Kabushiki Kaisha Toshiba Pulse tube refrigerator
FR2701157B1 (fr) * 1993-02-04 1995-03-31 Alsthom Cge Alcatel Liaison d'alimentation pour bobine supraconductrice.
FR2713405B1 (fr) * 1993-12-03 1996-01-19 Gec Alsthom Electromec Module d'amenée de courant pour l'alimentation d'une charge électrique supraconductrice à basse température critique.
US5735127A (en) * 1995-06-28 1998-04-07 Wisconsin Alumni Research Foundation Cryogenic cooling apparatus with voltage isolation
DE19648253C2 (de) * 1996-11-22 2002-04-04 Siemens Ag Pulsröhrenkühler und Verwendung desselben
JP3398300B2 (ja) * 1997-05-28 2003-04-21 京セラ株式会社 電子装置

Also Published As

Publication number Publication date
DE19704485A1 (de) 1998-08-20
DE19704485C2 (de) 1998-11-19
EP0958585A1 (fr) 1999-11-24
WO1998035365A1 (fr) 1998-08-13
JP3898231B2 (ja) 2007-03-28
JP2001510551A (ja) 2001-07-31
US6112527A (en) 2000-09-05
DE59808460D1 (de) 2003-06-26

Similar Documents

Publication Publication Date Title
EP0958585B1 (fr) Installation d'alimentation en courant pour un dispositif electrique refroidi
DE102004061869B4 (de) Einrichtung der Supraleitungstechnik und Magnetresonanzgerät
DE19914778B4 (de) Supraleitende Magnetvorrichtung
EP1504458B1 (fr) Dispositif de supraconductivite comportant un aimant supraconducteur et une unite de refroidissement
EP1206667B1 (fr) Dispositif supraconducteur comportant une unite refrigerante pour un enroulement supraconducteur rotatif
EP1970921B1 (fr) Alimentation en courant à supraconducteurs haute température pour aimants supraconducteurs dans un cryostat
EP1311785B1 (fr) Cryostat destine a des appareils electriques tels que des limiteurs de courant supraconducteurs, et a des machines electriques telles que des transformateurs, moteurs, generateurs et aimants electriques a enroulement supraconducteur
EP0865595B1 (fr) Machine frigorifique basses temperatures dotee d'une tete de refroidissement, et utilisation d'une telle machine
EP1504516B1 (fr) Dispositif de supraconductivite a unite de refroidissement dotee d'une tete de refroidissement thermiquement couplee a une bobine supraconductrice rotative
DE10211568B4 (de) Kälteanlage für zu kühlende Teile einer Einrichtung
DE102014224363A1 (de) Vorrichtung der Supraleitungstechnik mitSpuleneinrichtungen und Kühlvorrichtung sowie damitausgestattetes Fahrzeug
DE102018006912A1 (de) Vorrichtung zum Kühlen eines supraleitenden Elements
DE4223145C2 (de) Stromzuführungsvorrichtung für eine auf Tieftemperatur zu haltende, insbesondere supraleitende Einrichtung
DE19813211C2 (de) Supraleitende Einrichtung mit Leitern aus Hoch-T¶c¶-Supraleitermaterial
DE102015202638A1 (de) Stromzuführung für eine supraleitende Spuleneinrichtung
EP3861573B1 (fr) Limiteur de courant supraconducteur comprenant une alimentation en courant
DE10032368A1 (de) Supraleitungseinrichtung mit einer resistiven Strombegrenzereinheit unter Verwendung von Hoch-T¶c¶-Supraleitermaterial
DE9209457U1 (de) Stromzuführungsvorrichtung für eine auf Tieftemperatur zu haltende, insbesondere supraleitende Einrichtung
DE29805441U1 (de) Supraleitende Einrichtung mit Leitern aus Hoch-T¶c¶-Supraleitermaterial
WO2001001048A1 (fr) Dispositif de refroidissement
DE19938985A1 (de) Einrichtung der Supraleitungstechnik mit einer rotierenden, supraleitenden Wicklung
EP4139943A1 (fr) Alimentation électrique et son procédé de production
DE29911071U1 (de) Kühlvorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19990805

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

17Q First examination report despatched

Effective date: 20020626

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SERVOPATENT GMBH

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59808460

Country of ref document: DE

Date of ref document: 20030626

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040224

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: SIEMENS SCHWEIZ AG;INTELLECTUAL PROPERTY FREILAGERSTRASSE 40;8047 ZUERICH (CH)

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080202

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110224

Year of fee payment: 14

Ref country code: SE

Payment date: 20110208

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110418

Year of fee payment: 14

Ref country code: CH

Payment date: 20110510

Year of fee payment: 14

Ref country code: GB

Payment date: 20110210

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110223

Year of fee payment: 14

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120229

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120203

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120229

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120202

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59808460

Country of ref document: DE

Effective date: 20120901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120229

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120901