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1. 发明专利

JPS6329193A GAS LIQUID SEPARATION TYPE VERTICAL THERMO SIPHON 失效
公开(公告)号：JPS6329193A
公开(公告)日：1988-02-06
申请号：JP17136986
申请日：1986-07-21
申请人： AGENCY IND SCIENCE TECHN , FUJIKURA LTD
发明人： SHIRAISHI MASAO , MASUKO KOICHI , MOTAI TSUNEAKI , MOCHIZUKI MASATAKA
IPC分类号： F28D15/02
摘要： PURPOSE:To provide a superior work efficiency and a superior thermal transportation amount by a method wherein an inner pipe having an opened upper end and having several air holes at its circumferential wall is concentrically inserted and arranged within an external pipe having a closed structure and a helical line is held between both pipes. CONSTITUTION:A heat Q is applied to an evaporater part 15 from an external source and the heat Q is retrieved from a radiation part 14, a working fluid 19 is evaporated and gasified at an evaporation part and its steam flows upwardly toward a radiation part 14 having a low pressure. In this case, the working fluid vapor is generated between the inner pipe 11 and the outer pipe 10 to generate an ascending flow. Since a helical line 12 is held between the pipes, a flowing resistance is high, resulting in that the working fluid vapor passes through air holes 17 formed in the inner pipe 11, enters the inner pie 11 and then flows toward the radiation part 14. In this way, the condensed and liquefied liquid phase working fluid in contact with an inner circumferential surface of the outer pipe 10 at the radiation part 14 flows down along the inner surface of the outer pipe 10, enters a space between the inner pipe 11 and the outer pipe 10, the working liquid becomes a helical flow due to a presence of the helical line 12 and flows out of the inner pipe 11. Therefore, the interior of the inner pipe 11 becomes a vapor passage and the outer part becomes a working fluid passage and thus a gas liquid separation is carried out.

2. 发明专利

JPS62123291A LARGE-CALIBER AND LONG VERTICAL THERMO SIPHON 失效
公开(公告)号：JPS62123291A
公开(公告)日：1987-06-04
申请号：JP26092485
申请日：1985-11-20
申请人： AGENCY IND SCIENCE TECHN , FUJIKURA LTD
发明人： SHIRAISHI MASAO , MASUKO KOICHI , MOTAI TSUNEAKI , SAKATANI MASUSHI , MOCHIZUKI MASATAKA
IPC分类号： F28D15/06 , F28D15/02
摘要： PURPOSE:To prevent dry out of a heat collecting surface, to increase a heat carrying amount, and to effect efficient recovery and fetching of a terrestrial heat, by a method wherein liquid phase working fluid is stored in a liquid reservoir part independently separated from a heat incoming spot, and is returned to a spot where heat incomes in a state in that the working fluid is isolated from a steam flow. CONSTITUTION:The temperature of a heat dissipation part 15 is set to a value lower than an underground temperature, and with a flow rate regulating valve 19 opened, working fluid 12 in a reservoir 14 is caused to outgo to a reflux distribution pipe 20, and the working fluid is injected toward the inner wall surface of a closed pipe 11. The liquid phase working fluid 12 is uniformly distributed and fed to the inner wall surface of the closed pipe 11, is vaporized and evaporated resulting from receipt of a terrestrial heat during flow down, and flows toward the heat dissipation part 15. The liquid phase working fluid 12 is fed directly to a spot in the vicinity of the inner wall surface of the closed pipe 11 through the reflux distribution piston 20, a section, where a convection flow is produced between a steam flow and the working fluid, is extremely shortened, and the working fluid is prevented from flying. The opening of a flow rate regulating value 19 is regulated so that an amount of the working fluid vaporized by a terrestrial heat becomes equal to an amount of the working fluid fed through the flux distributing pipe 20, and this regulation prevents a liquid column from being produced to the bottom part of the closed pipe 11, and permits the whole of the inner surface of the closed pipe 11, positioned to a heat absorbing part 13, to form the vaporizing surface of the working fluid.

3. 发明专利

JPS63233294A GAS LIQUID SEPARATION TYPE VERTICAL THERMO SIPHON 失效
公开(公告)号：JPS63233294A
公开(公告)日：1988-09-28
申请号：JP6714387
申请日：1987-03-20
申请人： AGENCY IND SCIENCE TECHN , FUJIKURA LTD
发明人： SHIRAISHI MASAO , MASUKO KOICHI , MOTAI TSUNEAKI , SAKATANI MASUSHI , MOCHIZUKI MASATAKA
IPC分类号： F28D15/02
摘要： PURPOSE:To provide positive separation between a flow of working liquid and a flow of vapor and to improve a thermal transmitting characteristic by a method wherein aeration holes formed at an inner pipe have a length longer than a Taylor wave length lambda and has a width less than the Taylor wave length lambda. CONSTITUTION:Aeration holes 16 are a longitudinal hole which is inclined by about 30 deg.-60 deg. in respect to an axis of an inner pipe 11, its length l is defined as one longer than a Taylor wave length lambda defined by an equation in such a way as a film of the working fluid may not be applied over an entire surface. A width (w) is set at a value less than the Taylor wave length lambda. The Taylor wave length lambda defined herein is a limit size where a liquid film is generated, sigmais a surface tension of the liquid phase working fluid, (g) is a gravity acceleration, rho1 is a density of liquid phase working fluid, rhov is a density of gas phase working fluid. A heat input Q is present at a heating part 13, the working fluid 12 is evaporated, its vapor is flowed at a lower pressure heat radiation part 14, radiated there and then condensed. The working fluid vapor is passed through aeration holes 16, flowed into the inner periphery of the inner pipe 11 and flowed toward the heat radiation part 14 in the fluid passage.

4. 发明专利

JPH05166420A RUBBER-PLASTIC POWER CABLE 失效
公开(公告)号：JPH05166420A
公开(公告)日：1993-07-02
申请号：JP35215491
申请日：1991-12-13
申请人： FUJIKURA LTD
发明人： OSHIMA HIROHITO , TAKESHITA MASACHIKA , MOTAI TSUNEAKI , SAKAGUCHI HISAO , ISHIKAWA TORAICHI
IPC分类号： H01B7/282 , H01B7/28 , H01B9/02
摘要： PURPOSE:To prevent the lowering of an impulse breakdown voltage and an alternating current long-running breakdown voltage by preventing a moisture from moving into an internal semiconductive layer from an insulating paper for dividing use and the like at the time of extrusion continuous-bridging with a moisture isolating layer being provided inside the internal semiconductive layer. CONSTITUTION:A moisture isolating layer 40 is provided on a semiconductive tape winding layer 18 inside an internal semiconductive layer 20. A moisture isolating tape used to form the layer 40, for instance, is longitudinally wrapped on a tape 18 wound on a cable conductor 10, and then the layer 20, a cable insulator 22 and an external semiconductive layer 24 are simultaneously extruded thereon at the cross-head of an extruding machine and after that, bridged and cooled at a bridging cylinder and then the wrapped part of the moisture isolating tape is bonded by conductor preheat and heat generated at the time of bridging. Thereby, a moisture is not moved into the layer 20 from the insulating paper 12 for dividing use, an intervening paper 14, 16 and the tape 18 at the time of extrusion continuous-bridging. Accordingly, the lowering of an impulse breakdown voltage and an alternating current long-running breakdown voltage may be prevented.

5. 发明专利

JPH0418229B2 失效
公开(公告)号：JPH0418229B2
公开(公告)日：1992-03-27
申请号：JP27363986
申请日：1986-11-17
申请人： FUJIKURA LTD
发明人： SUGIHARA SHINICHI , MOTAI TSUNEAKI , MOCHIZUKI MASATAKA
IPC分类号： F28D15/02

6. 发明专利

JPH0324034B2 失效
公开(公告)号：JPH0324034B2
公开(公告)日：1991-04-02
申请号：JP16628383
申请日：1983-09-09
申请人： FUJIKURA LTD
发明人： MASUKO KOICHI , TAKAOKA MICHIO , MOTAI TSUNEAKI , MOCHIZUKI MASATAKA , ITO MASAHIKO
IPC分类号： F28D15/02 , F28D15/06 , H01R13/53

7. 发明专利

JPH01314142A MANUFACTURE OF HEAT-SHRINKABLE TUBE 失效
公开(公告)号：JPH01314142A
公开(公告)日：1989-12-19
申请号：JP14613688
申请日：1988-06-14
申请人： FUJIKURA LTD
发明人： ONISHI AKISHI , MOTAI TSUNEAKI , YOSHIDA SHOTARO , HASEGAWA SHOICHI
IPC分类号： B29C47/94 , B29C48/90 , B29C61/08 , B29K105/02 , B29L23/00
摘要： PURPOSE:To reduce the viscosity coefficient of a friction relaxing solution by continuously injecting an appropriate solvent in the flow of the friction relaxing solution at the beginning of a hollow columnar resin cooling process. CONSTITUTION:An appropriate solvent is injected in the flow of a friction relaxing solution at the beginning of a cooling zone. For the sake of this, for example, the injection pipe 17 communicating with the flow of the friction relaxing solution is provided at the position directly above the mount part of the jacket of a cooling apparatus 11 and an injection pressure feed pump P is interposed between the injection pipe 17 and a separately provided solvent tank 18. As the solvent, water can be used when the friction relaxing solution is, for example, ethylene glycol.

8. 发明专利

JPH01128821A METHOD FOR CONTROLLING WALL THICKNESS OF PLASTIC TUBE 失效
公开(公告)号：JPH01128821A
公开(公告)日：1989-05-22
申请号：JP28899087
申请日：1987-11-16
申请人： FUJIKURA LTD
发明人： ONISHI AKISHI , MOTAI TSUNEAKI , YOSHIDA SHOTARO , HASEGAWA SHOICHI
IPC分类号： B29C48/325 , B29C48/92
摘要： PURPOSE:To make it possible to cope with even complicated abnormal wall thickness by a method wherein controlling members are actuated in response to the outputs of thickness sensors so as to control the gas between a thin cylinder and a mandrel. CONSTITUTION:A part of a main body, which surrounds a mandrel 16, is made of a deformable elastic metal thin cylinder 40. Controlling members 42, each of which is shiftable in the radial direction of the thin cylinder 40, are arranged at a plurality of sites outside the thin cylinder 40. Sensors, each of which measures the wall thickness of an extruded tube, are respectively mounted at positions corresponding to the controlling members 42 so as to actuate the controlling members 42 in response to the outputs of the thickness sensors 50 so as to control the gap between the thin cylinder 40 and the mandrel 16. For example, if the wall thickness measured with the thickness sensor 50a is thicker than the normal wall thickness, a motor 46a is rotated by the action of a control device 48 so as to slightly advance the controlling member 42a. As a result, the gap between the thin cylinder 40 and the mandrel 16 at the site, at which the controlling member 42a is mounted, becomes narrower, resulting in bringing the wall thickness back to a normal size.

9. 发明专利

JPS6457508A DC CABLE 失效
公开(公告)号：JPS6457508A
公开(公告)日：1989-03-03
申请号：JP21129487
申请日：1987-08-27
申请人： FUJIKURA LTD
发明人： YOKOYAMA SHIGEKAZU , TAKAOKA MICHIO , MOTAI TSUNEAKI , YOSHIDA SHOTARO , HASEGAWA SHOICHI , TAN MASAYUKI , YAMANOUCHI HIROSHI
IPC分类号： H01B3/44
摘要： PURPOSE:To improve the thermal characteristic of polyethylene and enhanced its dielectric strength by fluoridizing the polyethylene with a specified molality. CONSTITUTION:Powder or a pellet of polyethylene is fluoridized by heating in a fluorine gas ambient. Then, formed on a conductor is an insulating layer containing the 0.005-1mol fluoridized polyethylene. Thereby, a vast equipment is not required in a bridging line after an extruding process although it is required in the prior art, since a chemical bridging is not required. Further, a DC cable with a good impulse breakdown characteristic and a good DC breakdown characteristic can be obtained in the same thickness of insulating layer with that of the prior art.

10. 发明专利

JPS6424307A DC POWER CABLE 失效
公开(公告)号：JPS6424307A
公开(公告)日：1989-01-26
申请号：JP18141187
申请日：1987-07-21
申请人： FUJIKURA LTD
发明人： YAMANOUCHI HIROSHI , OKIAYU RYUICHI , YOSHIDA SHOTARO , MOTAI TSUNEAKI
IPC分类号： H01B3/44 , H01B9/02
摘要： PURPOSE:To increase the DC breakdown voltage by providing space charge mitigating layers at least between an inside semiconductive layer and an insulator or between an outside semiconductive layer and the insulator. CONSTITUTION:Space charge mitigating layers 4-7 preventing the accumulation of space charges are provided at least between an inside semiconductive layer 1 located around a conductor N and an insulator 2 or between an outside semiconductive layer 3 and the insulator 2. The space charge mitigating layer 4 is provided between the inside semiconductive layer 1 and the insulator 2, and the space charge mitigating layer 5 is provided between the outside semiconductive layer 3 and the insulator 2, and space charge mitigating layers 6, 7 are provided both between the inside semiconductive layer 1 and the insulator 2 and between the outside semiconductive layer 3 and the insulator 2. The accumulation of space charges giving an adverse effect to the insulator 2 is thereby reduced, and a DC power cable with the high dielectric strength is obtained.

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