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41. 发明专利

JPH0972683A HEAT TRANSFER TUBE 失效
公开(公告)号：JPH0972683A
公开(公告)日：1997-03-18
申请号：JP22687595
申请日：1995-09-04
申请人： HITACHI CABLE
发明人： TATSUMI ARITAKA
IPC分类号： F28F1/40
摘要： PROBLEM TO BE SOLVED: To improve the heat transfer performance and to improve the performance of an equipment and the like by integrally forming a continued spiral fin with a metal tube on the inner wall surface of the metal tube and providing a waveshape part bent at the end in a waveshape along the longitudinal direction of the fin. SOLUTION: The heat transfer tube 7 has a constitution to form a continued spiral groove 5 on the inner wall surface and to provided a fin 4 between the grooves 5. The fin 4 is so formed to have a predetermined height as to disorder the flow of fluid flowing in the tube 7, and so formed as to have a larger oblique angle than a predetermined angle with respect to the tube axis of the tube 7, and to have a waveshape part 6 bent at the end in the waveform along the longitudinal direction. Thus, the agitating effect of the fluid flowing in the tube 7 can be increased to make it possible to largely improve the heat transfer performance.

42. 发明专利

JPH07241567A PRESERVATIVE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH07241567A
公开(公告)日：1995-09-19
申请号：JP3620694
申请日：1994-03-08
申请人： HITACHI CABLE
发明人： TATSUMI ARITAKA , ITO ISAO , KUROSAWA TORU , UCHIYAMA SHINZO , TAKAGI SEIICHI , KODAIRA MUNEO
IPC分类号： C02F1/50 , A01N59/16 , A01N59/20
摘要： PURPOSE:To obtain a safe easy use preservative of a water-soluble oil agent by electrochemically dissolving at least one of a predetermined amt. of copper and silver in an aq. soln. of an anionic surfactant. CONSTITUTION:An aq. soln. 2 of an anionic surfactant is put in a liquid tank 1 to be sent to an electrolytic cell 4 by a liquid pump 3 and passed through the electrolytic cell 4 to be returned to the liquid tank 1 to be repeatedly circulated. A pair of electrodes 5 composed of copper are inserted in the electrolytic cell 4 in a state insulated from the cell 4 and a DC current is supplied to the electrodes from an electrolytic power supply 6. When the aq. soln. 2 of the anionic surfactant is put in the liquid tank 1 and the liquid pump 3 is operated while a current is supplied across the electrodes 5 from the power supply 6, electrolyzed copper is dissolved in the aq. soln. 2 passing the peripheries of the electrodes 5 and the concn. of copper in the aq. soln. 2 is gradually raised during a period when the aq. soln. 2 is repeatedly circulated between the liquid tank 1 and the electrolytic cell 4 and, after a predetermined time is elapsed, an aq. soln. high in the concn. of copper can be obtained.

43. 发明专利

JPH04332390A HEAT PIPE TYPE HEAT EXCHANGER AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04332390A
公开(公告)日：1992-11-19
申请号：JP13060091
申请日：1991-05-02
申请人： HITACHI CABLE
发明人： TATSUMI ARITAKA
IPC分类号： F28D15/02
摘要： PURPOSE:To contrive the improvement of workability as well as cost down without increasing thermal resistance in the interface between a heat pipe and a heat transfer member. CONSTITUTION:A sealed vessel 5 is contacted closely with heat transfer members 4 by the plastic deformation, generated by the expanding of the sealed vessel 5 due to the vapor pressure of the operating liquid 2 of a predetermined amount, while the sealed vessel 5 is connected to the heat transfer members 4 through fusion of low-melting point connecting metal 3 applied on the surface of the sealed vessel 5 or the heat transfer members 4. In this case, the surface of the heat transfer members 4, having inserting holes 4a with an inner diameter larger than the heat pipe 1 by a predetermined size, or the surface of the heat pipe 1 is coated with the low-melting point connecting metal 3, then, the heat pipe 1 is inserted into the inserting holes 4a and both of them are heated at a predetermined temperature for a predetermined period of time whereby the low-melting point connecting metal 3 is melted, the operating liquid 2 sealed into the heat pipe 1 is heated to provide the heat pipe 1 with the vapor pressure of the operating liquid 2 as well as plastic deformation based on the thermal expansion of the same and contact the outer surface of the heat pipe 1 closely to the inserting holes 4a, then, the heat pipe 1 and the heat transfer members 4 are cooled to connect them.

44. 发明专利

JPH04324040A OPEN AIR GRAVITY FALL TYPE COOLING DEVICE 失效
公开(公告)号：JPH04324040A
公开(公告)日：1992-11-13
申请号：JP9526091
申请日：1991-04-25
申请人： HITACHI CABLE
发明人： TATSUMI ARITAKA
IPC分类号： F24F1/00 , F24F13/22 , F28F1/32
摘要： PURPOSE:To provide a cooled air spontaneous drop type cooling device which offers a fine view when looking up a ceiling and which prevents the water droplets from falling even when dew condensation is produced. CONSTITUTION:A folding shutter type slanting bend section 4, which cuts off a see through vision field when looking up a ceiling plane 3 is formed on parallel fins 2 of a heat exchanger. The angle and dimension of the slanting bend are set to proper values, which makes it possible to cut off a see through vision field when looking up the ceiling plane 3 by way of the heat exchanger without interrupting the spontaneous fall of cooled air substantially. It is more desirable that dent 5, 6 (recessed parts or grooves) be formed so as to let the water drops to remain therein.

45. 发明专利

JPH03281013A MANUFACTURING DEVICE FOR PIPE WITH INNER GROOVE AND NON-WORKED PART 失效
公开(公告)号：JPH03281013A
公开(公告)日：1991-12-11
申请号：JP7736390
申请日：1990-03-27
申请人： HITACHI CABLE
发明人： MAEBAYASHI KIYOAKI , TATSUMI ARITAKA
IPC分类号： B21C1/22
摘要： PURPOSE:To reduce the wear of the ring and the sphere and to improve the workability of the pipe with inner groove and with non-worked part and to improve the life of the press ring or sphere by making the metallic pipe side of the pressing surface of the press ring to the spherical surface and making the outer side from the prescribed position to the taper surface. CONSTITUTION:The spherical surface part 5a1 comes into face contact with the sphere 4, the pressurizing force for the plug with the groove is applied to the sphere 4 and the inner surface groove is formed in the inner surface of pipe. The press ring 6 is moved to the position 6' by R1 with the moving device, the sphere 4 is moved to the position displayed with the dotted line, the revolution radius of the sphere 4 is enlarged by B1, and contacts with the taper surface 5a2. Therefore, the revolutional radius is sufficiently enlarged by B1, the contact of the plug with groove with the inner surface of the metallic pipe is eliminated, the non-worked rough part 22A is formed, this non-worked rough part 22A is also contracted in diameter with the following dies, and the pipe 20 with inner groove and non-worked part which consists of the inner grooved part 21 and the non-worked part 22 of the same outer diameter over the total length is formed.

46. 发明专利

JPH03274388A HEAT SIPHON TYPE HEAT EXCHANGER 失效
公开(公告)号：JPH03274388A
公开(公告)日：1991-12-05
申请号：JP7743590
申请日：1990-03-26
申请人： HITACHI CABLE
发明人： HORI MAKOTO , TATSUMI ARITAKA , KUROSAWA TORU , HANARI HISASHI
IPC分类号： F28D15/02
摘要： PURPOSE:To increase a capability of a heat exchanger and make a small-sized heat exchanger by a method wherein at least a part of a pipe communicating between an upper sheath pipe and a lower sheath pipe to make working liquid flow is composed of a zig-zag pipe. CONSTITUTION:A heat exchanger 2 is comprised of a zig-zag heat exchanging pipe 3, a lower sheath pipe 4, an upper sheath pipe 5, a communication pipe 3a, thermal conducting pipes 6a and 6b passing through the lower sheath pipe 4, and thermal conducting pipes 7a and 7b passing through the upper sheath pipe 5. In the event that a cooling operation is carried out, refrigerant vapor is condensed within the thermal conducting pipes 6a and 6b in the lower sheath pipe 4, thereby heat pipe working liquid 8 is heated and evaporated in the pipe 4, the water 1a in the water tank 1 is heated by vapor of working liquid in the heat exchanger 3 and heat is stored in the water tank as sensible heat. At this time, the heat exchanging pipe is a zig-zag formed pipe, so that a sufficient surface area can be attained in the water tank and a heat exchanging capability can be increased. Thus, a high heat exchanging capability can be attained with a small number of heat exchanging pipes.

47. 发明专利

JPH0287921A LAYING OF STRANDED CABLE WITH BUILT-IN HEAT PIPE 失效
公开(公告)号：JPH0287921A
公开(公告)日：1990-03-28
申请号：JP23491988
申请日：1988-09-21
申请人： HITACHI CABLE
发明人： YAMAMOTO KENJI , OSHIMA OKIHIRO , SHIMOJIMA KIYOSHI , KARASHI YUJI , TATSUMI ARITAKA , NIREGI TADASHI
IPC分类号： H02G7/00 , E04H12/20
摘要： PURPOSE:To protect stranded cable with a built-in heat pipe from corrision caused by soil by isolating it from soil with an insulating layer composed of a material excellent in corrosion resistance. CONSTITUTION:A corrosion-proof pipe 4 made of a material excellent in corrosion resistance such as a polyethylene pipe is provided into soil 3 from ground level 2, into which stranded cable 1 with a built-in heat pipe is inserted. Around the stranded cable 1 with a built-in heat pipe filler 5 is filled up to constitute an insulating layer. By laying the strands isolated from the soil with a protective tube made of a material resistant to corrosion such as polyethylene in this way, the corrosion resistance of stranded cable with the built-in heat pipe is remarkably improved because the contact of the stranded cable 1 with the built-in heat pipe is prevented with the soil 3.

48. 发明专利

JPH0270317A METHOD AND APPARATUS FOR MANUFACTUING INTERNAL GROOVED PIPE HAVING UNWORKED SECTION 失效
公开(公告)号：JPH0270317A
公开(公告)日：1990-03-09
申请号：JP21986688
申请日：1988-09-02
申请人： HITACHI CABLE
发明人： TATSUMI ARITAKA
IPC分类号： B21C1/22 , B21C3/08
摘要： PURPOSE:To improve accuracy of lengthes of the unworked section and grooved section and pitch by controlling actions of interrupting means based on the detection of the unworked section through detecting means for the unworked section. CONSTITUTION:As a pusher 11 and grooved plug 26 are retreated by operating a traveling device 5 to retreat a drawing die 3 in the stage of working the internal grooving of the metallic pipe 1, the unworked section 1a having somewhat larger outer diameter and without grooves on inner surface is formed. The detecting sensor 12 detecting this unworked section 1a to output a detected signal is provided on the position on the same line of the internal grooved section and apart from a sphere 6 by a prescribed distance (l0). Based on the signal detecting the front end of the unworked part 1a by the control section, the traveling device 5 is operated to retreat the pusher 11 and grooved plug 2b and based on detected signal detecting the rear end of the unworked section 1a, the movement of the traveling device 5 is reversed. The pusher 11 and grooved plug 2b are advanced to return to the former positions. By this method, the accurate length L1 of the unworked section 1a is formed repeatedly by the accurate pitch (l0).

49. 发明专利

JPH01111196A SOUND ABSORBING HEAT PIPE 失效
公开(公告)号：JPH01111196A
公开(公告)日：1989-04-27
申请号：JP26607987
申请日：1987-10-21
申请人： HITACHI CABLE
发明人： TATSUMI ARITAKA , SAWADA ATSUSHI , SHIRAISHI YUZO
IPC分类号： F28D15/02
摘要： PURPOSE:To prevent the sudden elevation or drop of the block of operating liquid by sudden boiling to prevent the generation of sound, by providing a sound absorbing means, which becomes resistance against the movement of the operating liquid, in a heat pipe. CONSTITUTION:Operating liquid 2 is being poured into the lower side of a sealed vessel 1 while a reticulated body is fixed above the level of the liquid. When heat is applied to a heating section 1a of the sealed vessel 1, the operating liquid 2 is evaporated. The vapor of the operating liquid 2 elevates through the sealed vessel and arrives at a cooling section 1b, then, the heat of the vapor is dissipated on a wall surface and the vapor is condensed whereby the liquid is returned to the heating section and the heat is moved from the heating section 1a to the cooling section 1b. In this case, the reticulated body 8 is fixed, therefore, the elevation of the vapor of the operating liquid 2 is not bothered but the elevation of the block of the operating liquid 2 is prevented in the case of the sudden boiling of the same. The generation of abnormal sound due to the sudden boiling may be prevented by the sound absorbing means. On the other hand, the sound absorbing means does not bother the movement of the vapor, therefore, the deterioration of heat transfer performance will never be caused.

50. 发明专利

JPH0197412A WARMING APPARATUS FOR SPECTATOR'S SEAT 失效
公开(公告)号：JPH0197412A
公开(公告)日：1989-04-14
申请号：JP25434087
申请日：1987-10-08
申请人： HITACHI CABLE
发明人： TATSUMI ARITAKA
IPC分类号： A47C7/74 , A47C1/16 , E04H3/12
摘要： PURPOSE: To efficiently heat only a required seat at a low cost by providing an induction coil on a seat, generating an AC magnetic field, integrating a metallic member for generating heat by an eddy current with a mat for the seat or the like and positioning it in the AC magnetic field. CONSTITUTION: The induction coil 3 tightly sealed with the non-magnetic insulation body 2 of plastic or the like is embedded in the seat 1 of the stand 9 of an outdoor stadium. AC power sources are arranged for respective appropriate blocks in the stand 9 and branching cables 5 branched from the main cable 4 of the AC power source are connected to the induction coils 3. The mat 6 placed on the seat 1 by an audience is provided with the metallic plate 7 of large eddy current loss. When the audience places the mat 6 in the state of making an AC current flow to the induction coil 3, the eddy current is generated on the metallic plate 7 by the AC magnetic field formed by the induction coil 3 and the mat 6 is heated by heat generation based on the eddy current. When the mat 6 is not placed on the seat 1, only the power of the induction coil is consumed and heat is not generated.

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