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1. 发明专利

JP2001224106A SUPERCONDUCTING MAGNET FOR MAGNETICALLY LEVITATED TRAIN 失效
公开(公告)号：JP2001224106A
公开(公告)日：2001-08-17
申请号：JP2000031375
申请日：2000-02-09
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD
发明人： SUZUKI EIJI , SAITO SANETOSHI , WATANABE HIROYUKI , CHIBA TOMOO
IPC分类号： B61B13/08 , B60L13/03 , B60L13/04
摘要： PROBLEM TO BE SOLVED: To provide a superconducting magnet for a magnetically levitated train capable of narrowing the distance between a superconducting coil and a levitating coil, while securing required rigidity. SOLUTION: Comprising an inner vessel 3 that holds a superconducting coil 7 in coolant and an outer one 2 that encloses the inner vessel 3, a superconducting magnet 1 for a magnetic levitation train is mounted on a car, in such a way as to face ground coils that are mounted on a side wall 13 on the ground. In this magnet 1, the superconducting coil 7 is arranged at the center of the inner vessel, the width of which is narrowed. The coil 7 is also arranged in proximity to a side surface 2A of the outer vessel at the ground coil side with its center being biased toward the side surface 2A.

2. 发明专利

JPH1189012A SUPERCONDUCTING MAGNET FOR MAGNETIC LEVITATION TRAIN HAVING INDUCTION COLLECTOR COIL 失效
公开(公告)号：JPH1189012A
公开(公告)日：1999-03-30
申请号：JP24235997
申请日：1997-09-08
申请人： HITACHI LTD , RAILWAY TECHNICAL RES INST
发明人： EJIMA HIDEHIRO , USAMI SABURO , SUZUKI FUMIO , WATANABE HIROYUKI , CHIBA TOMOO , SUZUKI EIJI , NEMOTO KAORU , SAITOU SANETOSHI , OKI YOSHIBUMI , TSUTSUMI HIDEAKI
IPC分类号： B61B13/08 , B60L13/04
摘要： PROBLEM TO BE SOLVED: To stably supply power using electromagnetic induction between a superconducting magnet for magnetic levitation train and a levitation coil and a propulsion coil which are located on the ground and maintain a stable superconducting state for obtaining levitation and propulsion. SOLUTION: On the surface of an outer container 2 of a superconducting magnet 1, located on a vehicle so as to face a levitation coil 14 and a propulsion coil 15 located on the ground, an induction collector coil 11 is so fixed as to face the levitation coil 14. In an inner container 3 holding a superconducing coil 7 in a refrigerant, a superconducting coil 7 is fixed, off-centered to a wall face of the outer container 2 to which the collector coil 11 fixed. For refrigerant through-holes formed in a spacer metal fittings 4 for fixing the superconducting coil 7 in the inner container 3, those formed to the induction collector coil 11 side are made small and those formed to the opposide side, that is, to the truck side are made large. Furthermore, part of a spacer metal fitting 4 near the induction collector coil 11 is formed thicker than the other side of the spacer.

3. 发明专利

JPH06208920A MAGNETIC LEVITATION VEHICLE 失效
公开(公告)号：JPH06208920A
公开(公告)日：1994-07-26
申请号：JP17576292
申请日：1992-07-02
申请人： HITACHI LTD , HITACHI ENG CO LTD , RAILWAY TECHNICAL RES INST
发明人： SONOBE TADASHI , TAKIZAWA TERUHIRO , SUZUKI FUMIO , GOTO FUMIHIKO , NAKAJIMA HIROSHI , SUZUKI EIJI , IWAMATSU MASARU
IPC分类号： H01F6/00 , H01F7/20 , H01F7/22
摘要： PURPOSE:To alleviate generation of heat from a superconducting coil itself or thereabout when a vehicle is running. CONSTITUTION:The magnetic levitation vehicle comprises a truck frame 4 fixed, by means of a plurality of bolts 5, 5,..., with an outer tank 3 containing a plurality of superconducting coils 1, 1,... while arranging in the longitudinal direction. Assuming that an n-th higher harmonic 10 has highest spectral intensity among spatial higher harmonic field in running direction produced by a ground coil and the wavelength of the n-order higher harmonic 10 viewed from the running vehicle side is lambdan, pitch lP of the bolt 5 is set according to a formula; lp=((2M-1)/4+ or -0.15).lambdan (m is a natural number).

4. 发明专利

JPH11265815A SUPERCONDUCTING MAGNET FOR MAGNETICALLY LEVITATING TRAIN 失效
公开(公告)号：JPH11265815A
公开(公告)日：1999-09-28
申请号：JP6796998
申请日：1998-03-18
申请人： HITACHI LTD , RAILWAY TECHNICAL RES INST
发明人： CHIBA TOMOO , WATANABE HIROYUKI , SUZUKI EIJI , NEMOTO KAORU , SAITOU SANETOSHI , OKI YOSHIBUMI , TSUTSUMI HIDEAKI
IPC分类号： H01F7/20 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To prevent degradation of the current collecting capability of a current collecting coil due to a high frequency magnetic field from eddy current generated on the surface of the outer tank of a superconducting magnet. SOLUTION: The beam face on at least the ground coil side of an inner tank beam and the plate face of a radiation shield plate facing the inner tank beam face are regressed to the opposite side of a ground coil, and the outer surface on the ground coil side of an outer tank 2 which is faced to the circular inner side of the inner tank 2 is recessed to the opposite side of the ground coil. As a result of this, an interval between the recessed outer surface of the outer tank 2 and a current collecting coil 5 is widened, and eddy currents generated in the part can be reduced, and the effects of a high frequency magnetic filed due to this can be reduced.

5. 发明专利

JPH1083916A SUPERCONDUCTING MAGNET FOR MAGNETIC LEVITATION RAILWAY USE 失效
公开(公告)号：JPH1083916A
公开(公告)日：1998-03-31
申请号：JP23609696
申请日：1996-09-06
申请人： HITACHI LTD , RAILWAY TECHNICAL RES INST
发明人： FURUKAWA YOKO , FUKUMOTO EIJI , SUZUKI FUMIO , SAITO TOSHIO , WATANABE HIROYUKI , SUZUKI EIJI , MURAI TOSHIAKI , HASEGAWA HITOSHI
IPC分类号： H01F7/20 , B60L13/04 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To provide an induction current collection system, which reduces the fluctuations of a magnetic field, which are exerted on an induction current collection coil by an eddy current which is made to flow through a vacuum heat insulating container, and has a high current collection power, in a superconducting magnet, which is used for an on-board current collection of a magnetic leviation railway. SOLUTION: This superconducting megnet consists of a superconducting coil 11, a housing container 12 for housing the coil 11, a radiant heat shield 18, which is located on the outside of the container 12 and shields radiant heat, and a vacuum heat insulating container 14 for housing the above coil 11, container 12, shield 18 and container 14. In this case, the surface, which faces a ground coil, of the container 14 is constituted of layers consisting of tow kinds or more of materials having different electrical resistivities and is constituted of the layer consisting of the material having the high electrical resistivity as it approaches the side, which is close to the ground coil. Thereby, the fluctuations of a magnetic field, which are exerted on the container 14 by an eddy current, which is made to flow through the container 14, is lessened. As a result, a superconducting magnet for magnetic levitation railway use, which contributes to the enhancement of the current collecting power of a current collecting coil, is high in rigidity, is high in strength, is lightweight and has also a high magnetic field shielding effect, can be provided.

6. 发明专利

JP2001118726A SUPERCONDUCTING MAGNET FOR INDUCTION CURRENT COLLECTION 失效
公开(公告)号：JP2001118726A
公开(公告)日：2001-04-27
申请号：JP29851699
申请日：1999-10-20
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD
发明人： CHIBA TOMOO , WATANABE HIROYUKI , MURAI TOSHIAKI , YAMAMOTO TAKAMITSU , SUZUKI EIJI , KURIHARA MINORU
IPC分类号： H01F7/20 , H01F6/00 , H01L39/04
摘要： PROBLEM TO BE SOLVED: To provide a superconducting magnet for a distributed induction current collection which has excellent current collecting performance without deteriorating the rigidity of an outer case. SOLUTION: An FRP layer 41 of a current collection coil 6 is engaged with a ground coil side recessed part 12 of an outer case. Since the FRP layer 41 is engaged with the outer case recessed part 12 and they are collectively formed integrally, a board of a ground coil side of an outer case 11 becomes a continuous state, and bending and torsional rigidity of the outer case 11 can be improved. As a result, a superconducting magnet for a distributed induction current collection which is excellent in current collecting performance can be obtained without deteriorating the rigidity of the outer case.

7. 发明专利

JPH10135029A COOLING METHOD AND DEVICE 失效
公开(公告)号：JPH10135029A
公开(公告)日：1998-05-22
申请号：JP30352696
申请日：1996-10-30
申请人： RAILWAY TECHNICAL RES INST
发明人： SUZUKI EIJI
IPC分类号： F25D3/10 , F25D9/00 , H01F6/04
摘要： PROBLEM TO BE SOLVED: To provide a technology by which an object to be cooled is cooled to a necessary and sufficient level by increasing the rate of flow of coolant in a passage for coolant, and the quantity of ejected coolant per unit time can be reduced by ejecting only the vaporized gaseous coolant. SOLUTION: An object to be cooled is cooled by pouring coolant in a passage 4 for coolant which is subjected to a heat load from the object to be cooled and ejecting the vaporized coolant to the outside air. A first coolant chamber 1 and a second coolant chamber 2, containing coolant are placed and are interconnected though the passage 4 for the coolant. Passages 5 and 6 ejection for leading the vaporized coolant to outside the coolant chambers are connected to the first and second coolant chambers 1 and 2 respectively. Open/close valves VA and VB are connected to the passages 5 and 6 respectively. Difference of inner pressures is produced between the coolant chambers 1 and 2, by controlling the opening and closing of the valves VA and VB to change the direction of coolant flowing in the passage and to permit the coolant blow to and fro, and the vaporized coolant is ejected to the outside air through the passages 5 and 6 for ejection.

8. 发明专利

JPH0745422A SUPERCONDUCTING MAGNET DEVICE FOR MAGNETIC LEVITATION TYPE RAILWAY 失效
公开(公告)号：JPH0745422A
公开(公告)日：1995-02-14
申请号：JP20374293
申请日：1993-07-27
申请人： RAILWAY TECHNICAL RES INST
发明人： KISHIKAWA AKIHIKO , NEMOTO KAORU , SUZUKI EIJI
IPC分类号： H01F6/02
摘要： PURPOSE:To restrain abnormal rise of a voltage generated when a superconducting coil is out of order during excitation or demagnetizing operation by making a circuit constitution switch element closed only when a superconducting coil is out of order during excitation or demagnetizing operation. CONSTITUTION:Permanent current switches 2a to 2f, protection resistors 3a to 3f installed on the car and diodes 4a to 4f are connected to each of one or more pairs of opposed right and left superconducting coils 1a to 1f and circuit constitution switch elements 5a to 5f are connected thereto to enable shortcircuiting of both ends of a superconducting coil. During excitation or demagnetization, when the superconducting coils 1a to 1f shift to normal conduction with the permanent current switches 2a to 2f opened, abnormal voltage rise generated at both ends of a superconducting coil is restrained by operation of the circuit constitution switches 5a to 5f corresponding to a superconducting coil which shortcircuits both ends of a superconducting coil.

9. 发明专利

JPH06113409A CRYOSTAT 失效
公开(公告)号：JPH06113409A
公开(公告)日：1994-04-22
申请号：JP25927792
申请日：1992-09-29
申请人： TOKAI RYOKAKU TETSUDO KK , RAILWAY TECHNICAL RES INST , MITSUBISHI ELECTRIC CORP
发明人： TERAI MOTOAKI , SHINOBU MASATOSHI , SUZUKI EIJI , IWAMATSU MASARU , YONETANI HARUYUKI , SAKABE MOICHI , JIZO YOSHIHIRO
IPC分类号： B60L13/04 , B61B13/08 , H01L39/04
摘要： PURPOSE:To suppress influence of an eddy current loss in an inner tank due to an inner invasion magnetic flux and to reduce loss in an inner tank based on relative vibration to an outer tank and a superconducting coil of a heat shield by setting resistivity of the shield to a predetermined range. CONSTITUTION:Resistivity of a heat shield 2 is set to a range 20-70muOMEGAcm (corresponding to 4mm of a thickness), i. e., in which an eddy current loss of a refrigerant storage inner tank 3 due to inner invasion magnetic flux due to a harmonic magnetic field. does mot make much increase. Thus the electric resistance of the shield 2 is raised to reduce an eddy current due to a relative vibration of the shield 2 and a superconducting coil 4 of an outer tank 1, thereby effectively reducing a loss in the tank 3 due to reaction. Thus, a refrigerant evaporating amount is reduced, a decrease in refrigerant cooling efficiency is prevented, and superconducting damage can be prevented.

10. 发明专利

JP2000269021A SUPERCONDUCTOR MAGNET AND EDDY CURRENT SUPPRESSING METHOD THEREFOR 失效
公开(公告)号：JP2000269021A
公开(公告)日：2000-09-29
申请号：JP6980299
申请日：1999-03-16
申请人： RAILWAY TECHNICAL RES INST
发明人： KURIHARA MINORU , NEMOTO KAORU , SUZUKI EIJI
IPC分类号： H01F6/00 , B61B13/06 , B61B13/08 , B61F3/00
摘要： PROBLEM TO BE SOLVED: To reduce heat generation of an inner layer not only when the field fluctuates due to external environment but also when a coil is excited or demagnetized by providing a second layer with at least one discontinuous part for dividing the second layer in the axial direction of a pipe in the inner layer. SOLUTION: An insulating inner layer 10 comprises a first layer 11 formed on the outer surface of an inner layer 2, and a second layer formed on the first layer 11. The inner layer 2 is a hollow tubular container formed of a metallic material having a relatively high electric resistance and closed annularly as a whole. The second layer 12 is composed of a material having relatively low electrical resistance and provided with a discontinuous part 13 for dividing the second layer 12 in the axial direction A1 (inner layer pipe axis) of the pipe in the inner layer 2. The discontinuous part 13 is a groove-like recess formed by removing the second layer 12 along the inner layer pipe circumferential axis A2, i.e., the axis in the direction of circulating around the inner layer pipe axis A1.

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