专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明专利

JPS55154011A METHOD OF COOLING POWER CABLE 失效
公开(公告)号：JPS55154011A
公开(公告)日：1980-12-01
申请号：JP6156179
申请日：1979-05-21
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ICHIYANAGI NAOTAKA , IWATA YOSHISUKE
IPC分类号： H01B7/42 , H02G15/20

62. 发明专利

JPS55140065A METHOD OF CIRCULATING COOLANT IN COOLED CABLE 失效
公开(公告)号：JPS55140065A
公开(公告)日：1980-11-01
申请号：JP4723379
申请日：1979-04-19
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ICHIYANAGI NAOTAKA , IWATA YOSHISUKE , HOSOKAWA KOUICHI
IPC分类号： F25D9/00 , F25B23/00 , H02G15/20

63. 发明专利

JPH09237529A HIGH TEMPERATURE SUPERCONDUCTIVE CABLE CONDUCTOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH09237529A
公开(公告)日：1997-09-09
申请号：JP3986496
申请日：1996-02-27
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ICHIYANAGI NAOTAKA , MIURA DAISUKE , TSUBOUCHI HIROKAZU , MIYOSHI KAZUTOMI
IPC分类号： H01B12/12 , H01B13/00
摘要： PROBLEM TO BE SOLVED: To provide a high temperature supsrcorrductive cable conductor with small decreasing of a critical current by winding a superconductor of silver sheath oxide system onto a former. SOLUTION: A plurality of silver sheath oxide system superconductors 1 are arranged flatly, in one surface or both surfaces thereof, a reinforcing tape 2 is fixed together, a superconductive tape unit 3 is formed, it is helically wound onto a former 4. By thus forming, when the superconductive tape unit is wound to the former, tension applied to the individual silver sheath oxide system superconductive wire is only small required, decreasing of a critical current can be reduced.

64. 发明专利

JPH09102226A SUPERCONDUCTING CABLE 失效
公开(公告)号：JPH09102226A
公开(公告)日：1997-04-15
申请号：JP25625195
申请日：1995-10-03
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ICHIYANAGI NAOTAKA , MIURA DAISUKE
IPC分类号： H01B12/06 , H01B12/08 , H01B12/12
摘要： PROBLEM TO BE SOLVED: To provide a structure of a superconducting cable whose critical current more closely approximates an expected value. SOLUTION: This segment conductor 10 comprises ten strands 1 wound on the outer peripheral surface of an auxiliary former 11. For the auxiliary former 11, a very flexible metallic corrugated pipe, with a metallic net wound thereon to smooth its surface, is used. The segment conductor 10 is spirally wound on the outer periphery of a main former 12. For the main former 12, a flexible, metallic hollow corrugated pipe is used. Six segment conductors 10 are wound. The segment conductors 10 are wound in such a way that they do not overlap one another. The direction in which the segment conductors 10 are wound on the main former 12 is the same as that in which the strands 1 are wound on the auxiliary former 11.

65. 发明专利

JPH06178428A COOLER FOR TUNNEL 失效
公开(公告)号：JPH06178428A
公开(公告)日：1994-06-24
申请号：JP32556792
申请日：1992-12-04
申请人： FURUKAWA ELECTRIC CO LTD
发明人： INOUE TETSUO , SEGAWA YOSHIHARU , ICHIYANAGI NAOTAKA
IPC分类号： F28D5/00 , F28D15/02 , H02G9/00 , H02G9/08
摘要： PURPOSE:To cool the inside of a tunnel lower than outside air temperature without raising humidity by installing a sealed cooler inside a tunnel or at the intake of outside air, and installing a refrigerant supply source for supplying a refrigerant to the sealed cooler through a refrigerant transport pipe. CONSTITUTION:When the temperature of outside air is higher than the allowable temperature of a tunnel, a temperature sensor 13 detects it, and outputs an operation signal to the pump 11 of a cooler 5. Next, the pump 11 pumps up the cooling water 10 inside a cooling water reservoir 8, and supplies it to a water sprinkling head 9. Accordingly, water is sprinkled from a sprinkling head 9 to a heat radiator 6, and the refrigerant in gas phase, which has gone up through a refrigerant transport pipe 7 into a heat radiator 6, is heat-radiated and cooled thereby being returned into the refrigerant in liquid phase, and it is supplied to the sealed cooler 4 through the refrigerant transport pipe 7. As a result, the sealed cooler 4 cools the outside air sent form a blower 3, performing heat exchange. Hereby, the inside of a tunnel can be cooled to the temperature lower than that of outside air without raising the humidity inside the tunnel.

66. 发明专利

JPH04210730A RATED CURRENT VARIABLE TYPE SUPERCONDUCTING LIMITER 失效
公开(公告)号：JPH04210730A
公开(公告)日：1992-07-31
申请号：JP40196690
申请日：1990-12-13
申请人： FURUKAWA ELECTRIC CO LTD
发明人： TANAKA SATORU , ICHIYANAGI NAOTAKA
IPC分类号： H01L39/00 , H01B12/02 , H02H9/02
摘要： PURPOSE:To prevent a cooling efficiency from decreasing and to reduce in size a superconducting limiter by standing longitudinally the limiter, arranging a plurality of the limiters at a predetermined interval, and providing a common electrode for connecting the ends of the plurality of limiters. CONSTITUTION:An electrode 22 is formed of a normal conducting member such as copper of a flat plate. Square recesses are provided at a predetermined interval on one side surface. The ends of superconducting limiters 21 are engaged with the recesses, and electrically connected to the limiters 21 by solders 25, etc. An interval capable of feeding refrigerant 32 without resistance may be obtained between the engaged limiters 21. A current lead wire material 24 is made of a wire material of normal conductor or high temperature superconductor. The electrode 22 and the conductive part of the material 24 have sufficient sectional areas for limiting a current at the time of short-circuiting so as not to generate large heat. Accordingly, since the limiter is longitudinally stood and the limiter itself can support its own weight, an electrically insulating board having a large occupying volume is eliminated.

67. 发明专利

JPH04193024A VARIABLE RATED CURRENT SUPERCONDUCTING CURRENT LIMITER 失效
公开(公告)号：JPH04193024A
公开(公告)日：1992-07-13
申请号：JP32185290
申请日：1990-11-26
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ICHIYANAGI NAOTAKA , TANAKA SATORU
IPC分类号： H02H3/08 , H02H9/02
摘要： PURPOSE:To prevent temperature rise of refrigerant due to pressure rise by providing a current limiter body section comprising an enclosed vessel containing as much refrigerant as immersing a group of superconducting current limiting elements, means for cooling the refrigerant in the enclosed vessel, and means for increasing the pressure in the enclosed vessel. CONSTITUTION:Liquid nitrogen 42 is fed from a refrigerant supply source 48 through a supply pipe 50 into an inner enclosed vessel 44. At that time, supply rate of the liquid nitrogen 42 is regulated appropriately to set the pressure thereof so that production of bubble is prevented. On the other hand, liquid nitrogen 54 filled in an outer enclosed vessel 46 is circulated through a suction pipe 56, a return pipe 58 and a refrigerator 60 thus realizing cooling at a desired temperature within a predetermined range. Temperature of the refrigerant 42 in the inner enclosed vessel 44 for cooling a group of superconducting current limit elements varies according to the temperature variation of the refrigerant 54 in the outer enclosed vessel 46.

68. 发明专利

JPH03198615A CONDUCTOR SHIFT DETECTOR FOR POWER CABLE CONNECTING BOX 失效
公开(公告)号：JPH03198615A
公开(公告)日：1991-08-29
申请号：JP33953489
申请日：1989-12-27
申请人： FURUKAWA ELECTRIC CO LTD
发明人： KASUYA MASAHARU , ISHII KENICHI , ICHIYANAGI NAOTAKA
IPC分类号： H02G15/08
摘要： PURPOSE:To measure a conductor shift and prevent occurrence of a cable accident by detecting magnetic flux from a permanent magnet on a conductor connecting sleeve, with a magnetic flux detecting sensor. CONSTITUTION:With a detecting section 15 including a magnetic flux detecting sensor 14, on the outer periphery of a reinforcing insulation layer 6 for covering a conductor connecting sleeve 2, magnetic flux to be generated from a permanent magnet 13 is detected. Then, according to positional shift in the longitudinal direction of the cable between the conductor connecting sleeve 2 or a cable conductor 1 and the reinforcing insulation layer 6, namely, a conductor shift, the output of the magnetic flux detecting sensor is fluctuated. Accordingly, if the output is checked, the conductor shift can be detected. From the conductor shift, the degree of the insulating destruction of a cable in a power cable connecting box 12 can be estimated. As a result, the insulating destruction of the cable in the power cable connecting box 12 can be obviated. The conductor shift can continuously or regularly be measured.

69. 发明专利

JPH03103019A CORE DISPLACEMENT DETECTOR FOR POWER CABLE JOINT BOX 失效
公开(公告)号：JPH03103019A
公开(公告)日：1991-04-30
申请号：JP23693789
申请日：1989-09-14
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ISHII KENICHI , KASUYA MASAHARU , ICHIYANAGI NAOTAKA
IPC分类号： H02G15/08 , H02G15/10
摘要： PURPOSE:To protect a power cable joint box against damage by providing a magnetic ring having a gap which displaces according to the displacement of core, and a magnetic heating body which is heated by the flux leaked through the gap of the magnetic ring in the power cable joint box. CONSTITUTION:The core displacement detector comprises a magnetic ring 28 having a gap and fixed to the core 16 of a power cable placed in the joint box case 24 of a power cable joint box 12, and a detecting section 34 including a plurality of magnetic heating bodies 32 which are arranged in parallel with the axial direction of the power cable 14 while opposing to the gap 30 of the magnetic ring 28 in the joint box case 24 and heated by the flux leaked through the gap 30 in the magnetic ring 28 when power is fed through the power cable 14. The plurality of magnetic heating bodies 32 are arranged in the axial direction of the core 16.

70. 发明专利

JPH02273413A RUBBER-PLASTIC INSULATED POWER CABLE 失效
公开(公告)号：JPH02273413A
公开(公告)日：1990-11-07
申请号：JP9304289
申请日：1989-04-14
申请人： FURUKAWA ELECTRIC CO LTD
发明人： UESUGI KENJI , FUKUDA TERUO , ICHIYANAGI NAOTAKA , MATSUKI MASAKI
IPC分类号： H01B9/02 , H01B1/24
摘要： PURPOSE:To improve insulation and stabilization while maintaining physical strength on a high level even under high temperature by forming an internal semiconductive layer and/or an outer semiconductive layer of a resin composite having a specific dynamic elastic modulus at a prescribed temperature. CONSTITUTION:An inner semiconductive layer and/or an outer semiconductive layer is formed of a resin composite having a dynamic elastic modulus of above 1X10 dyne/cm at a temperature under 100 deg.C. The resin composite of such a characteristic is generally obtained as under: For example, carbon black 30 to 70wt.% is blended with a polymer 100wt.% such as polyethylene and polypropylene of about 40 to 60% of crystallinity obtained by an infrared ray method. Further, a polymer of aforesaid high crystallinity is blended with such as ethylene acrylic acid copolymer, ethylene vinyl acetate copolymer and ethylene methyl methacrylic acid copolymer, as a reforming material while blending carbon black for adjusting.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式