Abstract: A vertical polygonal heat exchange chamber includes an upper opening, a lower opening, and an enclosure formed between the upper and lower openings. The enclosure includes at least one tapered portion that narrows in a direction toward one of the openings. The tapered portion is lined with N first water tube panels arranged adjacent to and alternately with N second water tube panels, where N is an integer greater than two. Each of the first and second water tube panels is angled inwardly from the widest part of the tapered portion toward the interior of the enclosure, with each of the first water tube panels being angled inwardly to a greater degree than each of the second water tube panels.

Abstract: A manifold for a heat exchanger comprising a tank, a plurality of tubes arranged to receive fluid therein, a plurality of fins for interspacing the tubes, the fins extending along the length of the tubes to thereby define a core section, wherein the header section is formed with multi-point brazing interfaces for securing said header and said core section during a brazing process. One embodiment provides at least one doubled wall area in close proximity to the tube slot areas to form a structure of increased strength, permitting the material to be reduced in relative thickness. The manifold may be formed from flat sheet stock by extended side walls of the header portion joined by a separate cap to close a top portion of the manifold assembly for the purpose of collecting fluid to and from the tubes and said at least one inlet and outlet.

Abstract: An improved heat exchange apparatus for insertion in a housing comprises heat exchange tubes extending substantially parallel to a direction of fluid flow through the housing and a plurality of spaced and circumferential fins formed along the heat exchange tubes and extending substantially perpendicular to the direction of fluid flow through the housing. Preferably the housing is fit with a fluid mover for driving the fluid over the tubes. The improved heat exchanger can be applied in a method for extermination of pests comprising providing a minimal envelope, heating ambient air within the envelope using the improved heat exchanger and discharging the heated air into the envelope so that the temperature of air in the envelope is sufficiently high to kill pests. Moving air across steam filled tubes enables use of the system in explosion classified areas and without damage to goods or equipment.

Abstract: A primary surface recuperator is made from a plurality of components, one of such components being a primary surface sheets. The primary surface sheet is used to transfers heat from a donor fluid to a recipient fluid. A first sheet portion of the primary surface sheet has a pair of sides and has a preestablished thermal deformation characteristic including a resistance to high temperature deformation and a high temperature resistance to corrosion. A second sheet portion has a pair of sides and has a preestablished thermal deformation characteristic being less than the resistance to high temperature deformation and the high temperature resistance to corrosion of the first sheet portion. The first sheet and the second sheet are attached at a respective one of the pair of sides of the first sheet portion and the second sheet portion forming an axis. The axis is positioned at an angle to the pair of sides.

Abstract: At the refrigerant inlet/outlet side surface portion of laminated flat tubes, there is provided a first side refrigerant passage, and in the upper portion of the other side surface portion, there is provided a second side refrigerant passage, and in the lower portion thereof a third side refrigerant passage. A first partition portion is provided in first lower tank portions of the laminated flat tubes, and a second partition portion is provided in second upper tank portions. The first partition portion and the second partition portion respectively divide the laminated first lower tank portions and the second upper tank portions such that the ratio of the number of flat tubes on the refrigerant inlet/outlet side surface portion side, n4, to the number of flat tubes on the opposite side surface portion side, n3, is approximately 2:1.

Abstract: A heat exchange system utilizing flow reducers at 180 degree bends in the tubes includes a first set of media tubes in which heating/cooling media flows, and a set of product tubes positioned concentrically within the media tubes and in which liquid product flows in a counter direction to the heating/cooling media. The tubes are arranged in a serpentine, back and forth manner, and U-shaped tubes interconnect successive pairs of product tubes to achieve the 180-degree change in flow direction. The U-shaped tubes are of a cross-sectional diameter greater than the product pipes. Tapering flow reducers extend between the opposing ends of the U-shaped tubes and the product tubes. The exit flow reducer is eccentrically formed to facilitate a smooth transition of the product from the U-shaped bend to the product tube and prevent liquid product from becoming entrapped along the bottom of the flow reducer.

Abstract: The invention concerns a supply air terminal device (10) including a supply chamber (11) for the supply air and in the supply chamber (11) nozzles (12a1, 12a2 . . . ; 12b1, 12b2 . . . ), through which the supply airflow (L1) is conducted into a side chamber (B1) of the supply air terminal device, which side chamber is a structure open at the top part and at the bottom part. The supply air terminal device (10) includes a heat exchanger (14), which can be used either to cool or to heat the circulated airflow (L2). In the device solution, fresh supply air, which is conducted through the nozzles to the side chamber (B1), induces the circulated airflow (L2) to flow through the heat exchanger (14). The combined airflow (L1+L2) of supply airflow (L1) and circulated airflow (L2) is conducted out of the supply air terminal device (10). The supply air terminal device includes an induction ratio control device (15), which is used to control how much circulated airflow (L2) joins the supply airflow (L1).

Abstract: A plate-like heat sink module with polygonal ground plan or shape has an upper side for securing a heat generating component and an underside comprises cooling ribs. The outside edges of the module have surface structure complementary with one another and with whose assistance a plurality of the identical heat sink modules can be joined in one plane, whereby the surface structures are fashioned so that a heat sink module can be joined to another heat sink module in only one orientation to form an arrangement of the heat sink modules. As a result of the arrangement of heat sink modules, a heat sink for the interconnection of a plurality of capacitors to form a capacitor bank can be produced in an especially flexible way.

Abstract: A ceramic heat sink having a micro-pores structure includes a heat dissipation layer, and a thermal conductive layer. The heat dissipation layer forms a ceramic micro-cell structure, which is combined with a sub-micrometer powder, thereby forming the heat dissipation layer. The thermal conductive layer is mounted on the heat dissipation layer to contact with a heat source. Thus, the thermal conductive layer absorbs the heat energy from the heat source; the heat dissipation layer has a micro-pores structure with hollow crystals, and the air functions as the media of heat dissipation, so that the heat dissipation capacity of the ceramic heat sink is greatly enhanced.

Abstract: A heat exchanger includes a metal fin assembly and metal tubing for carrying a heat exchange fluid. The tubing is located in passages of the assembly. Films bridge gaps between the tubing exterior surfaces and interior wall surfaces of tubes that form the passages. Exposed, exterior surfaces of the fin assembly and tubing are coated. The films and coatings are formed by electro-depositing electrically insulating powder on the heat exchanger exposed exterior surfaces. The film bridges the gap to prevent transfer of fungi and/or bacteria across the gap. The coating and film are very smooth to reduce the tendency for fungi and bacteria to accumulate. The powder can include an agent having antifungal and/or antibacterial properties.

Abstract: Herein presented is a unique device for air delivery and heat transfer. The housing assembly with the integrated heat exchanger chambers of the device along with a gas train assembly, a draft fan motor assembly, and a centrifugal fan assembly provides air flow to an air stream and transfer of energy to the same air stream from a combustion gas mixture stream inside the heat exchanger chambers. All the components of the debice, the heat exchanger chambers, the centrifugal fan motor assembly, the gas train assembly, and the draft fan motor assembly are housed together in a single economical unit.

Abstract: A heat exchanger tube having an integral restricting and turbulating structure consisting of dimples formed by confronting indentations pressed into the sides of the heat exchanger tube. The dimples are comprised of indentations disposed in pairs which extend into the tube to such a depth as is necessary to significantly reduce the cross sectional area of the heat exchanger tube and provide a pair of converging, diverging flow nozzles to promote turbulence of the flue gases. The turbulence characteristics of the tube can be controlled by varying the size of the aperture of the nozzles. In certain applications, the dimples are located along the sides of the heat exchanger tube, thereby providing unobstructed drainage for liquids even when the tube is bent into a serpentine shape.

Abstract: The invention relates to a heat exchanger, particularly of cross-current design, through which at least two separate media can flow. It comprises plates which are stacked on one another and which are spaced apart from one another in some areas and are in contact with one another in other areas, so that flow paths are formed between respectively adjacent plates in a heat exchange region. The plates have apertures adjacent to the heat exchange region, and the plates are spaced apart from one another by means of shaped-out portions of the plates. Areas succeeding one another about the circumference of the plates have apertures, and these areas are alternately shaped out in opposite directions from the plane of the plates.

Abstract: A heat sink for cooling electrical or electronic devices comprises a base plate having a top surface and a bottom surface for attaching to the electronic device. At least two vertical plates are affixed to and extend substantially perpendicularly from the top surface in a spaced apart manner and are parallel one to the other. A secondary fin is affixed to and extends between an upper portion of the vertical plates. The secondary fin has a top convoluted edge and a bottom convoluted edge and is oriented such that the bottom convoluted edge faces the top surface of the base plate. The secondary fin includes a plurality of individual fins formed in a convoluted accordion-like manner. The plurality of individual fins define a plurality of secondary fin passageways between adjacent ones of the individual fins wherein each secondary fin passageway extends from the top convoluted edge to the bottom convoluted edge.

Abstract: An arrangement of fins or other convective heat transfer surfaces which provides an improved value of heat transfer per unit pressure drop of the flowing fluid, for a defined geometric envelope. There are at least two flowpaths in parallel. Each flowpath contains a wide densely-surfaced region, called a heat transfer region, which accomplishes heat transfer at a reduced velocity whereby the ratio of heat transfer to pressure drop for that region is improved. In series with that region, in the same flowpath, is a narrow sparsely-surfaced region, called a fluid flow region, which serves to transport the fluid, at higher velocity but with minimal pressure drop, through the region(s) not densely-surfaced. The respective wide and narrow regions can be oppositely placed so that the overall arrangement maintains a constant width dimension so as to resemble conventional design.

Abstract: The present invention concerns a plate heat exchanger for at least two heat exchanging fluids which is permanently joined with at least one sealing portion and has heat transferring plates (1-8), at least two end plates and inlet and outlet organs for the heat exchanging fluids. The core of plates includes alternating heat transferring plates (1-4) and intermediate heat transferring plates (5-8) between the alternating plates. Adjacent plates form a double wall plate unit. The plate elements are permanently joined with each other in a plurality of points having spaced apart areas. For each one of the double wall units, ridges (9) and valleys (16) on the alternating plate (1-4) are in tight contact with the corresponding ridges (9) and valleys (10) on the intermediate plates (5-8) except right at at least one of the points with the spaced apart areas.

Abstract: The invention concerns a device for fixing a first heat exchanger conduit on a second heat exchanger fluid box, in particular for a motor vehicle, comprising at least one fixing bracket moulded in one single piece with a wall of the fluid box, said fixing bracket comprising an open part for receiving the conduit. In another embodiment, the fixing bracket is made integral the with conduit by welding and is fixed removable on the fluid box.

Abstract: A heat exchanger comprises a plurality of first heat exchange tubes extending through the exchanger, and through a plurality of laterally extending heat exchanger chambers, each chamber having at least one entry from a first chamber and at least one exit to a second axially adjacent chamber, and each chamber having a plurality of transverse interconnecting zones, each of which is defined by at least two of said tubes, and at least one first zone has an entry to said first chamber and at least one second zone, different from said first zone, has an exit to said second chamber. Also included is a vessel for mixing or distributing streams of a first fluid passing axially from an upstream to a downstream location, which comprises transverse baffles across said vessel in at least two successive rows, which rows of baffles define an open transverse chamber, the baffles in successive rows having a different spatial distribution across the vessel.

Abstract: A heat pipe comprising a flat container, and a member selected from a rod, a plate and a mesh, the member being fixedly arranged between narrow walls of the container so that space is provided in the inner circumference of the container both in the direction of width and length of the container.

Abstract: A cooling module is disclosed which comprises a plate, a flat heat pipe, a directional motor, and a fin structure, wherein at least a part of the heat pipe is embedded into the plate while being flush with plate, and the heat pipe is disposed close to a heat generating object and a coupling portion of the fin structure.