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WO1986004982A1 - Conduite thermique - Google Patents

Conduite thermique Download PDF

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Publication number
WO1986004982A1
WO1986004982A1 PCT/JP1985/000076 JP8500076W WO8604982A1 WO 1986004982 A1 WO1986004982 A1 WO 1986004982A1 JP 8500076 W JP8500076 W JP 8500076W WO 8604982 A1 WO8604982 A1 WO 8604982A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat pipe
metal
pipe
carbon fiber
working fluid
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.)
Ceased
Application number
PCT/JP1985/000076
Other languages
English (en)
Japanese (ja)
Inventor
Michio Takaoka
Tsuneaki Motai
Masuji Sakaya
Masataka Mochizuki
Kouichi Mashiko
Masashi Ida
Masahiko Ito
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.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to PCT/JP1985/000076 priority Critical patent/WO1986004982A1/fr
Publication of WO1986004982A1 publication Critical patent/WO1986004982A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0241—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the tubes being flexible

Definitions

  • the present invention relates to a heat pipe, particularly when ripening transport is performed over a relatively long distance or when the ripening portion is slightly higher than the cooling portion.
  • this is a heat pipe that is effective when excellent ripe transport capacity is required.
  • heat pipes are used to enclose a working fluid such as water in a vacuum-evacuated sealed metal pipe and to generate capillary pressure, thereby providing a wiping pipe.
  • a working fluid such as water in a vacuum-evacuated sealed metal pipe and to generate capillary pressure, thereby providing a wiping pipe.
  • the working fluid that has been ripened from the outside flows into the inside of the metal tube to the lower side, then ripens and condenses and liquefies. Then, the working fluid in the liquid phase is returned to the ripening section by the capillary pressure generated in the wick, so that the latent flow accompanying the phase change of the working fluid is achieved. It is to carry out the transportation of ripeness.
  • the heat pipe has a thermal conductivity several tens to one hundred and several tens times higher than that of copper, which is the metal with the best ripening conductivity. It is used in various fields such as heat exchangers, solar water heaters, medical equipment, etc., and recently it is also used for indirect cooling of electric power cables. It has come. At this point, as described above, the heat pipe is used to return the condensed and liquefied working fluid to the ki-mature part side by means of a dip, so the dip JH In addition, the ripening transport characteristics are greatly affected.
  • the present invention provides a sufficiently high capillary pressure for refluxing a liquid-phase working fluid, and thus from a mature transport position over a long distance to a lower position.
  • the purpose is to provide a heat pipe that can be transported That is.
  • Another object of the present invention is to provide a heat pipe having excellent ripening ability and yet being flexible.
  • Yet another object of the present invention is to provide a heat pipe which can maintain the mature transport ability for a long period of time and is easily manufactured.
  • the present invention is based on a press made up of a number of ultrafine carbon fibers constituting a wick and an arrangement of the ultrafine carbon fibers on the inner peripheral side thereof. It is a heat pipe characterized by being closely attached to the inner peripheral surface of a sealed metal tube. Therefore, the carbon fiber bundle emits high capillary pressure.
  • the present invention has a configuration in which the carbon fiber is pressed and fixed against the inner peripheral surface of the metal tube by the presser disposed on the inner peripheral side thereof. It is possible to prevent a flow path formed between the carbon fibers from being closed or a failure to sufficiently exchange with a working fluid.
  • the present invention provides a method of twisting a plurality of ultrafine carbon fibers and adhering a plurality of stranded wires to the inner peripheral surface of a metal tube at a predetermined interval from each other. It is a heat pipe. By doing so, the area where the working fluid comes into direct contact with the inner surface of the metal pipe is increased, so that the transfer between the working fluid and the metal pipe can be efficiently performed. Wear .
  • the heat pipe according to the present invention comprises a presser formed of a spiral band, and a spiral pitch formed by the spiral pitch.
  • the width of which is larger than the width, the penetration of the working fluid into the wick and the evaporation of the working fluid from the wick.
  • the presser can be made of a resilient metal net.
  • the ultra-fine carbon fiber forming the stick can be securely pressed and fixed to the inner peripheral surface of the metal tube, and the working fluid for the wick can be fixed. This ensures the penetration of the fluid and the generation of the working fluid from the wick.
  • the wick can be formed by a cloth material made of carbon steel. With such a configuration, a large number of carbon fiber The fiber can be easily attached to the inside of the metal tube, and its shape can be maintained.
  • the present invention is a heat pipe provided with a wick having a sandwich structure in which a fine carbon fiber is sandwiched between metal nets.
  • FIG. 1 is a schematic partial sectional view showing an example of a heat pipe according to the present invention
  • FIG. 2 is a diagram of FIG. 1 I-line cross-sectional view
  • Fig. 3 is a graph showing the measurement results of the capillary height by carbon fiber and the capillary height by the comparative example
  • Fig. 4 is the graph of the carbon fiber strand.
  • Fig. 5 is a cross-sectional view similar to Fig. 2 showing another example of the arrangement of carbon fibers
  • Fig. 6 is a top view FIG.
  • FIG. 7 is a graph showing the experimental results of examining the soaking temperature characteristics of the product of the present invention and a comparative example.
  • FIG. 7 is a typical graph showing another example of a heat pipe according to the present invention.
  • Fig. 8 is a sectional view taken along the line H-71 in Fig. 7, and
  • Fig. 9 is a partial enlarged view of a structure in which carbon fibers are sandwiched between metal nets.
  • Fig. 10 is a cross-sectional view similar to Fig. 8, showing another example of the arrangement of carbon fibers in the heat pipe shown in Fig. 7, and Fig. 10 is a cross-sectional view of the present invention.
  • FIG. 2 is a schematic partial cross-sectional view showing another example of the heat pipe, FIG.
  • FIG. 2 is a cross-sectional view taken along line XI—XI of FIG. 1
  • FIG. FIG. 14 is a plan view and FIG. 14 is a graph showing the results of measuring the temperature distribution in the axial direction during operation of the heat pipe shown in FIG. 11 and the comparative example.
  • FIG. 1 is a schematic partial cross-sectional view showing an embodiment of the present invention
  • FIG. 2 is a cross-sectional view taken along the line K !
  • reference numeral 1 denotes an outer body.
  • a large number of ultrafine carbon fibers 2 are attached as a wick to the inner peripheral surface of the metal tube 1, and the carbon fibers 2 are wrapped around the inner peripheral surface of the metal tube 1.
  • a presser 3 is arranged on the inner peripheral side of the carbon fiber 2 so that the metal tube 1 can be tightly fixed to the surface. Later, a working fluid such as water is sealed.
  • the metal pipe 1 may be a straight pipe, but in order to be flexible, it may be a collet pipe as shown in FIG. I like it.
  • the reason why the wick was formed by the ultrafine carbon fiber 2 is explained below. For that reason.
  • FIG. 3 is a graph showing the results of an experiment performed by the present inventors.
  • curve A represents a bundle of a large number of carbon fibers 2 having a diameter of 5 *.
  • Curve B is a 60-80 mesh active alumina
  • curve C is a 60-mesh mesh gel
  • curve D is a sintered metal with a length of about 8 cm. The song that I just joined
  • each sample was set up vertically in the water, and the height of the rising water surface in the sample was defined as the capillary length.
  • the carbon fiber 2 has a maximum capillary length of 100 cm or more, whereas the metal mesh is fired.
  • carbon fiber 2 was extremely excellent, with conventional wick materials such as TOj3 ⁇ 4 having a maximum capillary length of only about 40 cm.
  • the second reason for using the wick as carbon fiber 2 is as follows.
  • the ultrafine carbon fibers 2 are bundled, if the carbon fibers 2 are separated from each other, that is, if the flow path of the liquid-phase working fluid is continuous, the friction coefficient is small at the time of the circumference, so that the carbon fibers 2 are cooled.
  • the pressure loss of the liquid-phase working fluid that flows back from the section to the ripening section is small, and therefore, ⁇ ⁇ Capillary pressure can be obtained. This is because the recirculation of the fluid is improved.
  • the maximum ripening transport amount Q max varies depending on the diameter of the carbon fiber itself, the most preferable diameter of the carbon wire to be used for forming the wick is determined here.
  • the maximum matured transport quantity Q flix is generally expressed by the following equation.
  • Figure 4 shows that the value of (K / r) in the above equation depends on the wick, and that the value is obtained from the measured value for the wick made of carbon fiber bundles. Therefore, the diameter of the carbon fiber wire used as a wick should be as follows. It is preferable to take about 30 JJ »from 2 JJm.
  • the thickness of the wick made of the carbon fiber 2 is 1 to 3 to reduce the total maturation resistance to the working fluid. It is preferably about 5 mm, generally about 2.
  • the third reason for using the carbon fiber 2 as the stick is that the carbon fiber 2 is rich in elasticity and has a small coefficient of linear expansion.
  • the pipe in order to improve the communication between the working fluid and the metal pipe that forms the outer casing, it is preferable that the pipe be closely attached to the inner peripheral surface of the metal pipe. Therefore, if the heat pipe is made of a flexible material, the heat pipe is made of carbon fiber. After bending, return to the original state, and the wick follows the curve and returns to the original state due to elasticity, maintaining the tightness between the pipe and the metal pipe Even when the temperature difference between the non-operating and operating states is large, the low linear expansion coefficient does not cause the slack of the wick. Therefore, it is possible to maintain the adhesion between the steel pipe and the metal tube 1.
  • the carbon fiber 2 since the carbon fiber 2 has a large heat resistance and a high corrosion resistance, it can be used as a wick for the heat pipe at the operating temperature, and the working fluid can be selected. Because carbon fiber 2 has a large weight and destructive strength, the carbon fiber 2 can form a dirt with carbon fiber 2. This makes it possible to obtain a heat pipe that is easy to handle and versatile.
  • the carbon fiber itself does not have a mutual binding force and a close contact force with the metal tube 1 forming the outer body, a large number of carbon fibers are formed by some means. 2 must be tied together and closely attached to the metal tube ⁇ . If an adhesive is used for this purpose, the adhesive will close the gap between the two carbon fibers, that is, the flow path of the liquid-phase working fluid, and the adhesive will not work with the working fluid. Heat transfer between the metal tube 1 and the metal tube 1 is hindered. Therefore, in the present invention, the inside of the carbon fiber 2 disposed on the inner peripheral surface of the metal tube 1 is not preferable.
  • the holding member 3 was arranged on the peripheral side, and the carbon fiber 2 was pressed and fixed by the holding member 3 against the inner peripheral surface of the metal tube 1.
  • the carbon fibers 2 may be arranged on the inner circumferential surface of the metal tube 1 along the axial direction of the metal tube 1, or may be spirally arranged. It may be arranged on the inner peripheral surface of the metal tube 1 in the same manner.
  • the carbon fibers 2 may be disposed so as to be in close contact with the entire inner peripheral surface of the metal tube 1.For example, a plurality of carbon fibers are twisted to form a stranded wire 2a. These may be arranged at regular intervals in the circumferential direction of the metal tube 1 as shown in FIG. This increases the area in which the working fluid comes into direct contact with the inner peripheral surface of the metal pipe 1. It is possible to efficiently exchange information between students.
  • a band-shaped material 3 a made of a scale plate or the like is formed in a spiral shape.
  • the material 3 a acts to expand by its own elastic force, so that the carbon fiber 2 is pressed and fixed to the inner peripheral surface of the metal tube 1.
  • the spiral pitch P of the helical holding member 3 is set to be larger than the width w of the strip 3a, and accordingly, the holding member 3 is made of carbon. Since the entire surface of the fiber 2 is not covered, the liquefied working fluid can easily permeate the carbon fiber 2 ⁇ and evaporate the working fluid from the carbon fiber 2. Uniteru: Yes.
  • the presser 3 can use a metal net rich in elasticity in addition to the above-mentioned spirally-shaped band-shaped material 3a.
  • the carbon fiber 2 is made of such a metal mesh, the working fluid is evaporated from the carbon fiber 2 and the carbon fiber 2 is removed so that the displacement of the carbon fiber 2 can be more reliably prevented. Can be more easily penetrated.
  • FIG. 6 is a graph showing the results of an experiment performed to confirm the performance of the heat pipe according to the present invention described above.
  • the subject was placed in the vertical direction, the sample was ripened in a so-called top-heat mode in which the upper part was a heating part, and the temperature of each part in that case was measured.
  • curve F shows the temperature distribution in the product of the present invention
  • curve G shows the wick made of a mixture of sintered metal and carbon fiber.
  • Curve I is a comparative example in which the wick is made of a sintered metal.
  • Curve J is a comparative example in which the wick is made of a sintered metal.
  • Curve J is a comparative example in which the wick is made of a sintered metal.
  • the temperature distributions in the comparative example in which the metal mesh is a sash are shown below.
  • FIG. 7 is a schematic sectional view showing another embodiment of the present invention
  • FIG. 8 is a sectional view taken along line H— — of FIG.
  • the heat pipe is different from the first embodiment described above in that the structure 5 in which a large number of carbon fibers 2 are sandwiched by a metal net 4 is used as a wick. In this case, no holding member is provided for holding the carbon fiber 2 by the metal net 4, and other configurations are the same as those of the above-described embodiment.
  • the structure 5 has a sandwich structure in which a large number of carbon fibers 2 are sandwiched by a metal net 4, as shown in a partially enlarged view in FIG. And cylindrical And inserted inside the metal tube 1.
  • the carbon fiber 2 in this structure 5 has a diameter of about 2 to about 30 mm, and a total thickness of about 1 to 5 mi ⁇ , preferably about 2 mm.
  • Each carbon tea fiber 2 is arranged in any direction, such as in the axial direction of the metal tube ⁇ or in a spiral shape. ing .
  • the ash fibers 2 are arranged so as to form an annular shape along the entire inner peripheral surface of the metal tube 1 as shown in FIG. 8, but a plurality of stranded fibers are twisted. As shown in Fig. 10, place the line 2a at a fixed distance as shown in Fig. 10, so that the working fluid is applied to the inner peripheral surface of the metal tube 1. Since the area for direct contact is increased, it is possible to efficiently transfer the working fluid to and from the metal pipe 1 efficiently.
  • the mesh of the metal net 4 in the structure 5 may have a mesh of about 50 to 300 mesh, but if the metal net 4 having a fine mesh is used, carbon mesh may be used. In order not to hinder the generation of capillary pressure by the fiber 2, it is preferable not to provide the metal net 4 on the inner peripheral side of the carbon fiber 2 in the portion serving as the evaporating section. ⁇
  • the flow path of the liquid-phase working fluid is sufficiently ensured, and the carbon fiber 2 is wrapped around the inner periphery of the metal pipe 1 without causing any displacement. It can be held stably on the surface, and it also provides good transfer of working fluid be able to . That is, since the carbon fiber 2 itself has a lower ripening conductivity than a metal, some supplementary means is necessary for fc to improve the ripening and receiving of the working fluid. Further, since the carbon fibers 2 themselves do not have a mutual binding force and a close contact force with the metal tube 1 forming the outer body, a large number of carbon fibers may be formed by some means.
  • the metal net 4 in the heat pipe, the structure 5 of the sandwich structure in which the carbon fiber 2 is sandwiched between the metal nets 4 was used as the wick. Further, it is possible to efficiently transfer the working fluid to and from the working fluid through the metal net 4 having high thermal conductivity, and to bundle the carbon fibers 2 with the metal net 4 at the same time. In addition, due to the elasticity of the metal net 4, the metal net 4 can be stably adhered to the inner peripheral surface of the metal pipe ⁇ .
  • FIG. 6 shows the same as in the first embodiment described above.
  • FIG. 1 is a partial sectional view showing still another heat pipe according to the present invention
  • FIG. 12 is a view taken along the line XI--XI of FIG.
  • the heat pipe shown here is obtained by using a cloth-like body 6 made of carbon fiber as a wick, that is, a cloth-like body 6 made of carbon fiber is provided on the inner peripheral surface of the sealed metal tube 1.
  • the cloth member 6 is pressed and fixed to the inner peripheral surface of the metal tube 1 by a retainer 3 disposed on the inner peripheral side of the metal tube 1. After a non-condensable gas is suctioned and exhausted from the inside of the metal tube 1, an appropriate working fluid is sealed therein.
  • the cloth-like body 6 is made of carbon fiber warp 7 crossing a carbon fiber warp 7 along the axial direction of the metal tube 1.
  • the cloth body 6 is rolled into a tubular shape and inserted into the metal tube 1, and the presser 3 inserted into the inner circumference of the metal tube 1 is knitted by the weft 8.
  • the metal tube 1 is pressed and fixed to the inner peripheral surface of the metal tube 1 by the elastic force of the metal tube 1.
  • the gap formed between the warp yarns 7 serves as a return path for the liquid-phase working fluid 10, that is, usually, the metal pipe 1.
  • the return path is a straight flow path along the direction in which the liquid-phase working fluid should flow. For this reason, heat pipes with low flow resistance to liquid-phase working fluids can be used.
  • the gap between the carbon fiber members constituting the cloth-like body 6 as an article is extremely narrow and the effective capillary radius is reduced, a high capillary pressure is obtained. This can cause
  • the weft yarn 8 crosses the return path of the liquid working fluid.
  • the warp was vertical. It was found that the volume ratio of the horizontal system 8 to the yarn 7 was set to 0.1 or less, and the influence on the flow of the liquid-phase working fluid was minimized. That is, a heat pipe in which the volume ratio of the weft yarn 8 to the warp yarn 7 is 0.1, a heat pipe in which the volume ratio is 1 and a metal knitted fabric
  • the ripening part was slightly extended (inclination angle 5 °), so that the so-called top heat mode was carried out. At that time, the temperature distribution at many points of each heat pipe was measured. The results are as shown in FIG.
  • the warp-yarn Therefore, it is possible to increase the capillary pressure over a long period of time, and to maintain a small pressure loss in the return line. it can .
  • presser 3 various things such as a metal net or a metal wire rounded in a ring can be used in addition to the spiral strip. .
  • the heat pipe of the present invention can effectively return the liquid-phase working fluid to the ripening section by using carbon fiber as the material of the wick. For this reason, indirect cooling of the power cable is required.For example, when the temperature source and the low-temperature source are far apart, or when congestion is transmitted over long distances, or when the power source goes from a high position to a low position. So-called birds to transport This is effective in the top heat mode.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Dans la conduite thermique ci-décrite, les mêches servant à refluer le fluide de travail condensé et liquéfié dans la partie chauffante se composent principalement de fibres de carbone. Ces fibres ne sont pas réunies en faisceaux, mais simplement comprimées et attachées sur la surface périphérique interne d'une conduite métallique fermée par un montage à pression, ou on leur donne une structure en sandwich en utilisant une gaze métallique. Dans une variante, les fibres de carbone sont tissées avec des trames de manière à obtenir un tissu. Suivant la structure utilisée, il est possible d'augmenter la pression dans le capillaire, de réduire la chute de pression du fluide de travail en phase liquide et d'en accroître la capacité de transfert thermique. La conduite thermique présente en outre une certaine flexibilité.
PCT/JP1985/000076 1985-02-21 1985-02-21 Conduite thermique Ceased WO1986004982A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1985/000076 WO1986004982A1 (fr) 1985-02-21 1985-02-21 Conduite thermique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1985/000076 WO1986004982A1 (fr) 1985-02-21 1985-02-21 Conduite thermique

Publications (1)

Publication Number Publication Date
WO1986004982A1 true WO1986004982A1 (fr) 1986-08-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1985/000076 Ceased WO1986004982A1 (fr) 1985-02-21 1985-02-21 Conduite thermique

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WO (1) WO1986004982A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003017365A3 (fr) * 2001-08-17 2003-09-04 Honeywell Int Inc Dispositifs de transfert thermique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145884A (ja) * 1982-02-22 1983-08-31 Fujikura Ltd 長尺熱輸送用ヒ−トパイプ
JPS5935785A (ja) * 1982-08-20 1984-02-27 Fujikura Ltd ヒ−トパイプ
JPS5960184A (ja) * 1982-09-28 1984-04-06 Fujikura Ltd ヒ−トパイプ
JPS6044796A (ja) * 1983-08-22 1985-03-09 Fujikura Ltd 極細線からなるウィックを有するヒ−トパイプ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145884A (ja) * 1982-02-22 1983-08-31 Fujikura Ltd 長尺熱輸送用ヒ−トパイプ
JPS5935785A (ja) * 1982-08-20 1984-02-27 Fujikura Ltd ヒ−トパイプ
JPS5960184A (ja) * 1982-09-28 1984-04-06 Fujikura Ltd ヒ−トパイプ
JPS6044796A (ja) * 1983-08-22 1985-03-09 Fujikura Ltd 極細線からなるウィックを有するヒ−トパイプ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003017365A3 (fr) * 2001-08-17 2003-09-04 Honeywell Int Inc Dispositifs de transfert thermique

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