A heat pipe (11,42,47) for transferring heat as the latent heat of evaporation to a radiating portion (12b,22b,25b,27b,28b,31b,33b,43,47b) at a lower temperature by heating a heating portion (12a,22a,25a,27a,28a,31a,33a) of a container to evaporate a working fluid (13) and by conveying the produced vapor to the radiating portion thereby to condense the vapor. The container (12,22,25,27,28) is formed into a flattened hollow shape by: a flat heating portion (12a,22a,25a,27a,28a,31a,33a) a radiating portion (12b,22b,25b,27b,28b,31b,33b,43,47) opposed at a distance to the heating portion and having a larger area than that of the heating portion; and side wall portions (12c,27c,27d) jointing the heating portion and the radiating portion to each other along the entire peripheral edge portions of the same.

Heat pipe and process for manufacturing the same

A trough-shaped collector for solar radiation for steam generation. A trough-shaped mirror extending in a longitudinal direction receives and reflects radiation onto an absorber line enclosing within its interior a steam generator tube. Heat is transferred transversely from the absorber line to the steam generator tube by a heat pipe structure.

Trough-shaped collector

An exemplary heat pipe includes an elongated casing, a wick, an artery mesh, and working medium filled in the casing. The casing includes an evaporating section and a condensing section. The wick is disposed within an inner wall of the evaporating section of the casing. The artery mesh includes a large portion, and a small portion with an outer diameter smaller than that of the large portion. The small portion is located within and in direct physical contact with an inner surface of the wick. The large portion is in direct physical contact with an inner wall of the condensing section of the casing. The working medium saturates the wick and the artery mesh.

Heat pipe with composite wick structure

There is provided a cooling device having a high cooling efficiency in a miniature size with neither influence of gravity, nor restriction in installation place and/or position, so that the device, which exchanges, transports and dissipates heat generated by a heat source, comprises: a coolant storing part for storing liquid coolant; a heat absorbing part comprising at least one micro channel and being positioned to be close to said heat generating source and connected to said coolant storing part, said liquid coolant being partly filled in said micro channel by surface tension and vaporized to be gaseous coolant in said micro channel when heat is absorbed from said heat generating source; a heat insulating part being adjacent to said heat absorbing part for preventing said heat absorbed by said heat absorbing part from transferring to other zones; a condensing part for condensing said gaseous coolant and being positioned apart from said heat absorbing part; a gas moving part being close to said heat absorbing part and said condensing part and being a passage through which said gaseous coolant moves from said heat absorbing part to said condensing part; and a housing in which at least said heat absorbing part is comprised.

Micro cooling device

A heat dissipation module is disclosed for providing good heat-dissipating efficiency First and second cases correspond to each other, with a heat conducting structure connecting to an opening of the second case The first and second cases and the heat conducting structure form a closed structure with a porous structure therein

Heat dissipation module

Herein disclosed is a dual-tube heat pipe type heat exchanger comprising a heat pipe confined with a working fluid for transferring a heat as a latent heat by repeating evaporations and condensations. The heat pipe includes an outer tube which is disposed within a hot fluid such that its axis is generally horizontal. Further included is an inner tube which is inserted in the outer tube and radially offset upward to substantially contact with the top portion of the inner face of the outer tube and to confine a space between the inner circumference of the outer tube and the outer circumference of the inner tube, thus forming the heat pipe.

Dual-tube heat pipe type heat exchanger

Herein disclosed is a heat pipe type heat exchanger which comprises: a container for containing a first heating medium therein or causing the same to flow therethrough; at least one heat pipe extending liquid-tight with a substantially horizontal axis through the container; and a tube extending gas-tight and axially through the heat pipe for causing a second heating medium to flow therethrough, whereby the heat exchange is effected between the first and second heating mediums through the walls of the heat pipe and the tube. In case a plurality of heat pipes are provided, the individual tubes extending axially through the corresponding heat pipes are connected at their ends to each other by means of bends such that they make a zigzag or meandering piping. This retains a wide heat exchanging area. Since the first and second heating mediums to have their heats exchanged with each other are isolated from each other by the heat pipes and the tubes, they are kept away from directly contacting or mixing with each other even if pin holes are formed in either the heat pipes or the tubes. This structure is effective for the heat exchanger between metallic sodium and water. Since the heat pipes are positioned horizontally, moreover, the working fluid can be distributed automatically and sufficiently to the portions receiving heat from the outside so that it can be evaporated to a satisfactory extent.

Heat exchanger using heat pipes

PROBLEM TO BE SOLVED: To decrease the shear rigidity so that it is suited to a light structure, prevent buckling of base isolating supporting bodies, and facilitate the design of base isolation, in a base isolation structure for structures SOLUTION: The base isolation structure for structures is a base isolation structure for buildings for supporting a building 10 so that it can be freely moved on a foundation 12 in horizontal direction by at least one base isolation laminated rubber (base isolating supporting body) 6 obtained by alternately and plurally laminating elastic layers 2 and rigid plate layers 4, and at least four rolling bearing means 8 At least four rolling bearing means 8 are arranged on the outer peripheral part of the bottom face 10a of the building 10 or close to the outer peripheral part, and at least one base isolating supporting body 6 are arranged in a space located on the inner side on the bottom face 10a of the building 10 and surrounded by four or more bearing means 8 COPYRIGHT: (C)1997,JPO

Base isolation structure for structure

PROBLEM TO BE SOLVED: To provide a base isolation building supporting structure which is equipped not only with the vibration damping function but with the restricting function for displacement caused by strong wind etc. and also the restitutional function. SOLUTION: With the magnetic poles oriented horizontally the first permanent magnet 3 is installed on either of a foundation 2 or a building, etc., 1, and on the other, the second permanent magnet 4 is installed whose magnetic poles are arranged as mating with the same polarity of the first permanent magnet 3. The building 1 is supported by these permanent magnets 3, 4 in the specified position is the horizontal direction. On either of the foundation 2 and building 1, a third permanent magnet 6 is installed with the polarities oriented vertically, and on the other, a fourth permanent magnet 8 is installed whose magnetic poles are arranged as mating with the same polarity of the third permanent magnet 6. The building 1 is supported afloat by the third and fourth permanent magnets 6, 8.

Base isolation building supporting structure

PROBLEM TO BE SOLVED: To surely prevent the buckling of a base isolating laminated rubber in a large deformation without damaging the base isolating characteristic even when a structure is light in a base isolator of the structure. SOLUTION: In a base isolator of a building which is interposed between a foundation 2 and a building 4 and provided with a base isolating laminated rubber 6 to movably support a building 4 in the horizontal direction, a slidable steel plate 8 is provided on a bottom surface 4a of the building 4, a slidably supporting body 10 having a clearance of the prescribed quantity A is provided in the vertical direction between the foundation and the slidable steel plate 8, and the slidable supporting body 10 is brought into slidable contact with the slidable steel plate 8 and supports the slidable steel plate 8 when the foundation 2 is displaced in the horizontal direction relative to the building 4 in an earthquake, and the base isolating laminated rubber 6 is settled by the prescribed quantity A.

Yatsuhashi Motoharu

Papers

Dual-tube heat pipe type heat exchanger

Heat exchanger using heat pipes

Base isolation structure for structure

Base isolation building supporting structure

Base isolator of structure