Abstract: Disclosed is a heat exchanger core comprising a multiplicity of flat plate parts (3) formed by alternately folding back a single belt-like metal plate in zigzag at a first fold-back edge (1) and at a second fold-back edge (2); a plurality of element parts formed by joining peripheral edges (4) of a pair of adjoining flat plate parts (3) which are integrally coupled to each other at the first fold-back edge (1), adjoining element parts (5) being integrally coupled at a certain interval to each other at the second fold-back edge (2); and a pair of ports (6) and (7) for a first fluid formed at positions apart from each other at the peripheral edge of each element part (5), wherein a second fluid flows along the outer surface side of each element part (5).

Abstract: An extremely high efficiency, cross flow, fluid-fluid, micro heat exchanger and novel method of fabrication using electrode-less deposition is disclosed. To concurrently achieve the goals of high mass flow rate, low pressure drop, and high heat transfer rates, the heat exchanger comprises numerous parallel, but relatively short microchannels. Typical channel heights are from a few hundred micrometers to about 2000 micrometers, and typical channel widths are from around 50 micrometers to a few hundred micrometers. The micro heat exchangers offer substantial advantages over conventional, larger heat exchangers in performance, weight, size, and cost. The heat exchangers are especially useful for enhancing gas-side heat exchange. The use of microchannels in a cross-flow micro-heat exchanger decreases the thermal diffusion lengths substantially, allowing substantially greater heat transfer per unit volume or per unit mass than has been achieved with prior heat exchangers.

Abstract: A lamina stack for a two-pass evaporator composed of laminae for converting two media mass streams from a liquid state into a gaseous state, comprises at least two laminae. Structures comprising recesses and raised regions on a first media lamina form a first media chamber perfused by one of the media mass streams. The structures on a second media lamina form a second media chamber perfused by the other one of the media mass streams. The at least two of the laminae can be supplied with thermal energy. Both media laminae have comparable structures, with at least a majority of the recesses in the one of the media laminae being disposed above or below the raised regions of the respective other media lamina.

Abstract: A plurality of heat transfer tube elements 17 are laminated with outer fins disposed between the heat transfer tube elements 17 in order to form a core. A gas flows between the outer fins. A passage 24 allowing flow of a cooling medium in a direction orthogonal to the direction of gas flow is formed in each heat transfer tube element 17. The passage 24 has a large passage 31 having a large width disposed upstream with respect to the direction a of gas flow and a small passage group 33 comprising a plurality of small passages 32 being more narrow than the large passage 31 and being disposed downstream with respect to the direction of gas flow. This arrangement allows non-uniformity in the temperature distribution of a gas flow to be suppressed to a low level with a downsizing, low-weight and low-cost device.

Abstract: A heat-exchanger is provided that comprises a fin core formed from a continuous sheet of thermally conductive material that has been folded into alternating flat ridges and troughs defining spaced fin walls having peripheral end edges wherein each of the fin walls has a thickness of about 0.020 inches of its length. The heat-exchanger may include at least one air-barrier plate fastened to the flat ridges on a first side of the fin core and a liquid-barrier plate fastened to the flat ridges on a second side of the fin core. A pair of end caps are sealingly fastened to and cover the peripheral end edges of the fin core so as to form a plurality of input and exit openings that communicate with the troughs. The fin wall thickness of about 0.002 inches to about 0.

Abstract: An heat exchanger having a first heat transfer element having thermally coupled to an electronic component, and a heat dissipation mechanism coupled to the heat transfer element. The heat dissipation mechanism includes a chamber of phase change material to dissipate heat generated by the electronic component.

Abstract: A heat exchanger made of plastic has flow channels for guiding two fluids countercurrently. The heat exchanger includes a cover part; an intermediate layer that at least partially forms the flow channels; and a trough part. The intermediate layer comprises (1) a flow channel for a first fluid comprising channel sections that are spaced apart from one another and (2) a second flow channel comprising opposite flow sections on back of the channel sections for a second fluid guided in an opposite direction from the first fluid. The wall areas that separate the channel sections and opposite flow sections are heat transfer membranes. The cover part and the trough part are connected tightly with the intermediate part, and the intermediate layer is a single piece. The heat exchanger can be used for room ventilation with heat recovery or air conditioning.

Abstract: A structure of, and process for making, an improved heat exchanger. The exchanger may be used for heat transfer between air going to a space for human comfort, and humid, cooled air from an evaporative cooling system. The heat exchanger is made from a series of layers of thermoplastic sheeting spaced apart in a stack by uniquely shaped flat-topped dimples formed therein. The plates are joined together at their edges by adhesive and sealants and aerodynamically designed U-shaped clips. The clips are installed in a manner to form alternating channels of cooled and non-cooled air streams flowing perpendicularly to each other in the stack of plates. Special alignment detentes provide easier stacking and assembly of the plates.

Abstract: Ends of heat-transfer plates S1, S2, formed by bending folding plate blanks in a zigzag fashion along folding lines L1, L2, are cut in an angle shape, and flange portions 26 formed by folding apexes of the angle shape are superposed one on another and brazed in a surface contact state, thereby to form combustion gas passage inlets 11 and air passage outlets 16 along the two end edges of the angle shapes. Compared with brazing of separate flange members onto the cut surfaces of the apexes of the angle shapes, this fabrication not only dispenses with precise finishing of the cut surfaces, but also serves to increase the brazing strength.

Abstract: A lamina stack for a two-pass evaporator composed of laminae for converting two media mass streams from a liquid state into a gaseous state, comprises at least two laminae. Structures comprising recesses and raised regions on a first media lamina form a first media chamber perfused by one of the media mass streams. The structures on a second media lamina form a second media chamber perfused by the other one of the media mass streams. The at least two of the laminae can be supplied with thermal energy. Both media laminae have comparable structures, with at least a majority of the recesses in the one of the media laminae being disposed above or below the raised regions of the respective other media lamina.

Abstract: A fluid cooling device, and a method for manufacturing the fluid cooling device, are disclosed. The fluid cooling device includes a plurality of cold plate members, each having a plurality of imperforate plate portions and perforate portions arranged in a line; and, at least one connector for connecting the plate portions together at one end thereof. The cold plate members are arranged in a stack, wherein respective plate portions of each cold plate member are in registration with perforate portions formed in its adjacent cold plate members in the stack. The fluid cooling device can provide very high heat transfer by close clearance laminar developing flow, thereby increasing the thermal performance of the fluid cooling device while maintaining low pressure drop.

Abstract: Apparatus for cooling an electronic device, and a resultant fluid-cooled electronic apparatus are provided. In one embodiment, the apparatus includes a heat sink member with a surface for making thermal contact with the electronic device. The heat sink member has a plurality of channels for carrying coolant fluid. The plurality of channels are positioned in a first group and a second group such that coolant flow alternates across the member. At least one cross-flow opening is provided between at least some adjacent channels of the plurality of channels so that coolant flow can flow within the member between the first group of channels and the second group of channels.

Abstract: An exhaust gas heat exchanger including a stack of heat exchanger plates that form separate flow channels that run parallel to each other, collection spaces, and inlets and outlets for the exhaust gas and for the preferably liquid coolant. The flow channels for the one of the media formed from heat exchanger plates are longer than the flow channels for the other medium, and pass through the collection space for this other medium. The heat exchanger also includes a region without a housing in which the two flow channels run parallel to each other.

Abstract: A coiled heat exchanger and a method of making the coiled heat exchanger. The heat exchanger includes a pair of corrugated plates connected to one another such that the crests of their respective corrugations contact. Edges of the sheets that correspond to the faces of the cylindrical core formed from coiling the sheets are bent and connected such that a substantially continuous and flat wall is formed between the two sheets. Portions of the wall are alternately cut open, left intact, and flattened so as to form a pattern of three distinct angular sectors on the face of the core. These angular sectors respectively include cut-open sectors configured to pass a heat transfer fluid therethrough, platform sectors configured for the mounting of headers thereon, and flattened wall sectors creating gaps configured to pass a heat transfer fluid therethrough.

Abstract: An oil cooler is fixed to an engine via an installation stay provided around an outer periphery of the oil cooler. Thus, the load applied to a core portion is reduced, and the load is dispersed on entire portion of the oil cooler. Thus, the respective stresses applied to respective portions of the oil cooler are very small, and a deformation of the core portion is prevented. Furthermore, since the respective stresses on any portion of the oil cooler is reduced, it is possible to make the oil cooler with aluminum whose strength is lower than that of iron. Furthermore, since the thickness of the installation stay can be reduced, difference in the thermal expansion quantity caused by difference in coefficients of linear expansion of the bolt and the installation stay is significantly reduced, and the loose bolt of the bolt caused by difference in coefficients of linear expansion is prevented.

Abstract: Heat exchangers including elongated hollow housings having inlet and outlet ports for circulating first and second fluid media through the housings and whereby each housing includes a heat exchanging core that is formed of a single, folded corrugated sheet. The sheet is formed with a series of parallel peaks and valleys running angularly to the direction of the sheet so that when the sheet is folded there are defined a plurality of channels by reason of the crisscross pattern of peaks and valleys crossing one another at right angles in the tightly folded configuration of the core. The folded configuration provides discrete respective channels for conveying the first and second fluid media. In the preferred embodiment of the heat exchangers, every fold of the corrugated sheet is in contact with the housing interior and thereby form alternating isolated channels without the need to use any top, bottom or side seals around the core.

Abstract: Cylindrical heat exchangers are typically constructed of a plurality of spiral passageways created by multiple concentric annuluses, with increasing diameters, overlaying one another. Each passageway, however, typically includes a corrugated sheet between such circular layers, and the corrugated sheet acts as an obstruction, thereby decreasing the pressure of an air stream as it passes therethough. The present invention is a cylindrical heat exchanger having a plurality of spiral passageways created by a spirally wound rectangular sheet, wherein the overlapping spiral layers, that are formed by the winding the rectangular sheet, are spaced apart by a plurality of radially aligned dividers. The dividers, along with an open interface layer that is interposed between the spiral layers, maintain the constant gap between the spirals. Therefore, manufacturing the cylindrical heat exchanger with spiral rather than concentric layers improves the process of manufacturing such devices.

Abstract: A memory module assembly comprises a memory card having a circuit board and a number of electronic components mounted on the circuit board, a pair of shells attached on opposite surfaces of the circuit board and a pair of clips securing the card and the shells together. The circuit board forms a grounding pad around three edges thereof. Correspondingly, each shell has an electrically conductive area contacting the grounding pad of the circuit board for preventing electromagnetic interference. The circuit board forms a number of openings, and each shell have a number of projections and apertures corresponding to the openings of the circuit board. The shells are positioned on the card with the projections of one shell received in the openings of the circuit board and apertures of the other shell. The clips secure the card and the shells together.

Abstract: A heat sink for a heat generating component of a computer system, such as a central processing unit (CPU), attaches to the computer system enclosure. The heat sink may be pressed against the component to establish thermal contact with the component. Because the heat sink attaches to the computer system enclosure and not the component, the component socket, or a circuit board; the heat sink may be unusually shaped and large, while still allowing easy access to the components mounted within the computer system enclosure. Removing the enclosure panel on which the sink is attached may allow easy access to the components within the computer enclosure. The heat sink may be particularly useful in computer systems that use only natural convection cooling.

Abstract: In a heat exchanger which is constructed such that heat-transfer plates S1, S2 in the form of a quadrilateral are bent at fold lines in a zigzag fashion to form combustion gas passages 4 and air passages 5 alternately in a circumferential direction, arrangement is made to enhance material yield and to facilitate brazing of components for formation of a fluid duct. Thus radially outer peripheral walls 6, 8o, 10o and radially inner peripheral walls 7, 8i, 10i, respectively, are brazed to fold lines at outer peripheries and inner peripheries of the heat-transfer plates S1, S2 to form a duct 13 continuous to a combustion gas inlet 11, a duct 14 continuous to a combustion gas outlet 12, a duct 17 continuous to an air passage inlet 15, and a duct 18 continuous to an air passage outlet 16.

Abstract: A heat exchanger which is constructed such that combustion gas passages 4 for passage of combustion gas and air passages 5 for passages of air are arranged alternately, and the heat exchanger is cut at one end side thereof in an unequal angle configuration to form combustion gas passage inlets 11 and air passage outlets 16, and cut at the other end side thereof in an unequal angle configuration to form combustion gas passage outlets 12 and air passage inlets 15. the combustion gas passage inlets 11 and combustion gas passage outlets 12, through which a combustion gas having a larger volume flow rate passes, are formed on a long side of an angle, and the air passage inlets 15 and air passage outlets 16, through which an air having a smaller volume flow rate passes, are formed on a short side of an angle.

Abstract: The present invention is an active microchannel fluid processing unit and method of making, both relying on having (a) at least one inner thin sheet; (b) at least one outer thin sheet; (c) defining at least one first sub-assembly for performing at least one first unit operation by stacking a first of the at least one inner thin sheet in alternating contact with a first of the at least one outer thin sheet into a first stack and placing an end block on the at least one inner thin sheet, the at least one first sub-assembly having at least a first inlet and a first outlet; and (d) defining at least one second sub-assembly for performing at least one second unit operation either as a second flow path within the first stack or by stacking a second of the at least one inner thin sheet in alternating contact with second of the at least one outer thin sheet as a second stack, the at least one second sub-assembly having at least a second inlet and a second outlet.

Abstract: First heat-transfer plates S1 and second heat-transfer plates S2 are radially arranged between a larger diameter cylindrical-shaped outer casing 6 and a smaller diameter cylindrical-shaped inner casing 7 to form combustion gas passages 4 and air passages 5 alternately in a circumferential direction, and a multiplicity of projections 22, 23 formed on both surfaces of the first heat-transfer plates S1 and second heat-transfer plates S2 are jointed to one another at tip ends thereof. Pitches P between adjacent projections 22, 23 are changed in a radial direction to make the number of heat transfer units substantially constant in a radial direction to uniformize temperature distributions on the first heat-transfer plates S1 and second heat-transfer plates S2 in the radial direction, thereby avoiding a decrease in heat exchanging efficiency and generation of unwanted thermal stress.

Abstract: A heat exchanger housing containing a filmed heat exchanger coil, the heat exchanger used to either heat or cool gases, and materials suspended in the gases, as they pass through the housing. The heat exchanger housing includes a substantially rectangular body, such as a square body. On the exterior of the heat exchanger housing is placed an inlet and an outlet. In specific implementations, the inlet and the outlet are positioned on opposite sides of the rectangular body. The inlet and outlet are each substantially circular. Joined to the substantially circular inlet and outlet are conical transitions that join to circular carrier lines. The carrier lines direct gases toward or away from the heat exchanger housing. Conical transitions provide a way to direct the gases from the circular carrier lines into the exchanger housing with a minimum of difficulty, with increased efficiency, and with avoidance of problems from metal fatigue at the corners of traditional transitions.

Abstract: An apparatus and method are described for thoroughly sealing off the extreme ends of a corrugated folded plate (core) heat exchanger. Instead of using end caps to seal off the two ends of the heat exchanger, the ends are first compressed or “crushed” into a vertical seam, thereby maximizing the density of the core. The crushed ends are then pinched and/or trimmed and the seam is then welded closed. Another variation is to spin the ends of the heat exchanger so that the ends taper to a very small opening while also maximizing the density of the core. The small opening is then welded shut.

Abstract: A modular heat exchanger includes a plurality of tubular modules formed from an aluminum extrusion. Each extruded tube has a generally rectangular cross section, a through bore extending longitudinally therethrough between parallel opposite faces, and parallel longitudinal V-grooves in the faces, all formed in the extrusion process. Each face includes a plurality of parallel fins which are cut into the grooved face in a direction transverse to the grooves. The fins have a generally saw tooth structure so as to increase the turbulence of the air flow through the heat exchanger. Unslotted end faces on the tubes include groove portions which are filled with weld material in both the tube joining process and the end tank welding process, thereby providing an all-welded aluminum heat exchanger of substantially enhanced strength. In another embodiment utilizing an all-welded construction, extended unslotted end faces are cross bored and sealed to provide fluid supply in lieu of the end tanks.

Abstract: First heat transfer plates S1 and second heat transfer plates S2 folded along crest folding lines L1 and valley folding lines L2 are bonded to an inner periphery of an outer casing 6 and an outer periphery of an inner casing 7, so that the first and second heat transfer plates S1 and S2 are disposed radiately, thereby forming combustion gas passages and air passages circumferentially alternately. One end of both the combustion gas passages and the air passages is cut into an angle shape, and one side and the other side of the angle shape are closed to form combustion gas passage inlets 11 and air passage outlets 16. In a similar manner, combustion gas passage outlets 12 and air passage inlets 15 are formed at the other end of the combustion gas passages and the air passages. Thus, it is possible to provide a heat exchanger which has a simple structure and is easy to manufacture, and in which the pressure loss due to bending of flow paths can be suppressed to the minimum.

Abstract: In the case where a partition for partitioning a combustion gas passage inlet 11 from an air passage outlet 16 is defined by a plate 8 attached by brazing to end surfaces of a plurality of heat-transfer plates S1, S2 in a heat exchanger 2, durability of the brazed portions are prevented from being degraded due to a load F acting on the plate 8 by a pressure differential between a combustion gas and air. Thus a bonding base plate 26 is attached by brazing to the end surfaces of the heat-transfer plates S1, S2 with the front surface of the bonding base plate 26 brazed to the rear surface of a bonding flange 28, which is formed by bending an end of the plate 8 by right angles, and a bonding flange 27 having an L-shaped cross section is attached by brazing to an underside of the plate 8 and the front surface of the bonding base plate 26. Accordingly, the bonded portions are increased in rigidity to ease stress concentration, thus enhancing durability.

Abstract: A heat exchanger is formed from a metal strip wound concertina fashion to provide superimposed plates. The plates are stamped in pairs separated by a narrow section which forms a return bend for folding the two plates over one another. Each plate is provided with ribs shaped to guide gas flow paths through the pocket between an inlet in one corner region of the plate and an outlet in a second corner region of the plate. Corrugated zones are formed in the plate between the ribs to promote a whirling motion of air as it travels between the ribs flanking the corrugated zones.

Abstract: An intravenous (IV) fluid heat exchanger which transfers heat from a heating medium to an intravenous fluid being delivered to a patient. The IV fluid heat exchanger includes an input manifold for receiving the IV fluid and distributing the IV fluid through a plurality of passageways extending from the input manifold. An output manifold is also provided for receiving the IV fluid flowing through the passageways and directing the IV fluid through an exit path out of the IV fluid heat exchanger. The passageways are positioned in the proximity of the heating medium, wherein the passageways facilitate the transfer of heat from the heating medium to the IV fluid passing through the passageways. By providing a plurality of passageways for the IV fluid, the surface area of the IV fluid exposed to the inner surfaces of the heated passageways is optimized to improve the heating efficiency of the IV fluid heat exchanger.

Abstract: In a heat exchanger for exchanging heat of fluids, the heat exchanger is provided with a heat exchanging section having a shape bent alternately consecutively so as to form laminate space and is constructed such that a first flow passage is formed on a space contacting a first surface of the heat exchanging section among the laminate space; and a second flow passage is formed on a space contacting a second surface of the heat exchanging section among the laminate space, wherein a first fluid flows on the first flow passage and a second fluid flows on the second flow passage.

Abstract: A heat exchanger having a first counterflow heat exchange unit with first and second segments wherein a flow of at least one product from a cryogenic air separation unit is channeled in a first direction along both the first and second segments and a second counterflow heat exchange unit is juxtaposed to the second segment of the first counterflow heat exchange unit and receives a flow of feed air which is channeled in a second direction that is counter to the first direction and allows heat exchange between the product and the air. A crossflow subcooling unit is juxtaposed to the first segment and receives at least one process cryogenic liquid from the air separation system for subcooling.

Abstract: A redundant refrigeration system is used in conjunction with a dual passage cold plate to provide reliable cooling for electronic circuit modules particularly to such modules which incorporate computer processors for which long term "up time" is very highly desirable. Separate compressor-expansion device-condenser refrigeration systems are coupled to a single cold plate which maintains flow-wise isolation between refrigerant streams while at the same time providing close thermal coupling.

Abstract: A heat dissipation cassette to be installed in the battery chamber of a notebook PC for cooling down the interior operational temperature of the notebook PC is disclosed. The heat dissipation cassette includes a cassette body that defines an air supply channel and an air exhaust channel. The air supply channel and the air exhaust channel are aligned with an air supply opening and an air exhaust opening defined in the endwall of the notebook PC, when the heat dissipation cassette is installed in the battery chamber. A supply fan is mounted in the air supply channel to supply cool air into the notebook PC through the air supply channel and the air supply opening. An exhaust fan is arranged in the air exhaust channel to exhaust hot air out of the notebook PC through the air exhaust opening and the air exhaust channel.

Abstract: There is described a plate-type heat exchanger, in particular an oil cooler, comprising a plurality of flow tanks (1) fitted into each other, each formed of a heat exchanger plate (2) with a peripheral shoulder (3), which flow tanks are alternatingly connected with each other via through holes (5, 12) for the heat-exchanging media. To create advantageous constructional conditions it is proposed that the through holes (12) of at least the flow tanks (1) for one of the heat-exchanging media should lie in the vicinity of the shoulders (3) and be connected with each other by at least one connecting box (9) for the supply and discharge lines (10 and 11) of the medium, which is externally connected to the shoulders (3) of the flow tanks (1) fitted into each other.

Abstract: A cold plate for use in a thermal management system and a method of thermal management which comprises an inlet channel having coolant fluid disposed therein at a substantially uniform pressure throughout the inlet channel and an outlet channel having coolant fluid disposed therein at a substantially uniform pressure lower than the pressure in the inlet channel throughout the outlet channel. The cold plate includes a highly thermally-conductive metallic porous matrix filling the fluid passage, preferably of aluminum. The porous matrix is preferably from about two percent to about 15 percent percent solid.

Abstract: A cold plate includes two flow-wise isolated coolant (or refrigerant) passages (or sets of passages) for use in conjunction with separate refrigeration systems. The cold plate passages do not permit flow communication between distinct coolant (or refrigerant) paths. This permits two distinct cooling systems to operate in a redundant manner. Nonetheless, flow isolation is achieved while still maintaining tight thermal coupling between each path and the object, such as an electronic computer processor module, to be cooled.

Abstract: A heat exchanging device of the present invention includes two fluid compressing means respectively mounted on the centers of both sides of a partition, each for feeding a respective fluid under pressure. A plurality of passageways adjoin each other around the fluid compressing means, and each faces the associated fluid compressing means at one end while facing the outside of the partition at the other end. The passageways protrude from both sides of the partition. Among the passageways, either the odd passageways or the even passageways are open on the front side of the partition at both ends while the other passageways are open on the rear side of said same at both ends. Two fluids of different temperatures respectively compressed by the fluid compressing means are respectively fed under pressure from one ends to the other ends of the odd passageways and the even passageways while contacting each other with the intermediary of the side walls of the passageways to thereby exchange heat.

Abstract: A package (10, 110, 210, 310) comprises a planar heat exchanger (14, 114, 314) with an air inlet (16, 116, 316) and an air outlet (18, 118, 318) thermally coupled to an electronic module (12). A flexible diaphragm operated pump (20, 120, 220, 320) with one-way valves (132, 134; 232, 234; 332, 334) are disposed between the air inlet and the air outlet. The diaphragm is oscillable to pump air through the heat exchanger from the inlet and out through the outlet. One or more piezo-electric transducers (138, 138; 232, 238; 338) are mounted on a diaphragm (136, 236, 336) and a power source and oscillator (140) are coupled to the transducer(s) to cause the diaphragm to rapidly flex and pump the air. The heat exchanger includes an internal structure (142, 342) defining a multitude of continuous air conducting passages.

Abstract: A cold plate includes two flow-wise isolated coolant (or refrigerant) passages (or sets of passages) for use in conjunction with separate refrigeration systems. The cold plate passages do not permit flow communication between distinct coolant (or refrigerant) paths. This permits two distinct cooling systems to operate in a redundant manner. Nonetheless, flow isolation is achieved while still maintaining tight thermal coupling between each path and the object, such as an electronic computer processor module, to be cooled.

Abstract: An improved dehumidification system for automotive use includes a rotating, wheel like heat exchanger with axially open cells that carry a water adsorbing material. Opposed ambient air and heated air flows, covering opposite halves of the wheel, continually adsorb water on one side and are recharged on the other side. Alternating radially closed cells between the axially open cells carry no desiccant material, but receive a cross cooling flow, on the water adsorbing side of the wheel only, to remove the heat released during the water adsorption process. The desiccant recharging process on the other side of the wheel is not disturbed by the cross cooling flow.

Abstract: A plate-type chemical reactor and method of using same to react two or more mutually separated fluid component streams are disclosed, wherein the reactor contains one or more reactor plates including at least one reaction-chamber reactor plate; at least one reaction chamber formed on a front facial surface of the reaction-chamber reactor plate(s); and at least one heat exchange channel passing through the reaction-chamber reactor plate(s) such that at least one section of heat exchange channel(s) is disposed in a heat exchange relationship with the reaction chamber(s); the reaction chamber containing: a plurality of inlet means for receiving and directing a plurality of mutually separated fluid component streams, a first mixing zone for mixing the separated fluid component streams to form a single at least partially reacted multicomponent fluid stream thereof, and at least one outlet means.

Abstract: A heat exchanger which includes a first space through which a first medium can flow along a first path; a second space through which a second medium can flow along a second path; and heat conducting means which are in thermal contact with the first medium in the first space and the second medium in the second space for transferring heat therebetween; which heat conducting means includes heat conducting wires which extend from the first space and the second space with mutual interspacing and in mutually parallel relation in a direction differing from the directions of the first and second path over at least a part of both transverse dimensions relative to the paths, and has the characteristic that the wires are arranged in flat strips or mats which are placed such that at least one of the media flows first between the strips or mats and then through the strips or mats and between the wires with heat exchange between that medium and the wires.

Abstract: A CPU heat dissipating device includes a base made of heat conductive material, having a plurality of spaced fins defining air passages therebetween. A fan is disposed on the fins to induce force convection. An enlarged channel is formed between the fins to received therein an I-shaped spring plate having four co-planar limbs, each having an arm extending therefrom and substantially normal thereto with a catch formed on the free end of the arm to be received within a corresponding hole formed on a CPU casing. A circular bore is formed on the bottom of the channel and in communication therewith by means of a neck which supports the spring plate thereon. A circular rod is rotatably received within the bore, on which two radially-extending projections are provided.

Abstract: A gas-flow heat exchanger comprises a sinuously wound foil strip (11) providing a stack of parallel pockets (12) each of which contains a moulded plastics skeletal insert (13). The insert (13) comprises a flat rectangular frame (14) supporting within it a set of parallel baffles (15) which define a platen of passageways (16) extending between inlet and outlet openings (17 and 18) provided in the frame (14). Webs (20) lie in the medial plane of the frame and support the baffles (15). Holes and rebates (24, 25) are provided in the lower part of the insert to drain water from its interior. The foil (11) may be coated with hydrophilic material on one side.

Abstract: A device for processing water having high concentrations of scale forming compounds and high solids content in a high efficiency vapor compression distillation system wherein a plate-in-frame heat exchanger is submerged in a boiling solution contained in a boiler drum. An impeller in the drum continuously circulates the boiling solution through the heat exchanger at a velocity to prevent suspended solids from accumulating and to inhibit scale formation on the boiling surfaces of the heat exchanger.

Abstract: An annular heat exchanger suitable for a gas turbine engine comprises a first continuous sheet of material arranged in a spiral and a second continuous sheet of material arranged in a spiral. A first axially extending passage is defined between the first surface of the first sheet and the third surface of the second sheet and a second axially extending passage is defined between the second surface of the first sheet and the fourth surface of the second sheet. The first passage is closed at its axial ends by spiral seals between the first sheet and the second sheet. The second passage is open at its axial ends. A plurality of radially extending passages are provided to supply a first fluid at a first end into the first passage, to remove the first fluid from a second end of the first passage and to interconnect adjacent turns of the first passage. The passages extend radially through the second passage.

Abstract: First and second communicating holes are formed in a first formed plate 11, and first and second communicating holes are also formed in a second formed plate 12. The first and second formed plates 11 and 12 are joined to each other to form a joined body 8. When a plurality of joined bodies 8 are stacked, a heat exchanging section 7 is formed that is provided with a plurality of flow pipes 34 in which the first communicating holes are connected with each other in the stacking direction and the second communicating holes are also connected with each other. In the plurality of flow pipes 34 of the heat exchanging section 7, oil passage 35 in which engine oil flows in the stacking direction is formed, and further around the plurality of flow pipes 34, a plurality of cooling water passages 36 in which engine cooling water flows are formed.

Abstract: The present invention relates to a core assembly for use in an air-to-air heat exchanger. The core is comprised of a plurality of square plates. Each plate is comprised of a square planar central region; a first pair of opposed edge flanges bent in a first direction with respect to the central region to form approximately 90 degree angle with the central region; and a second pair of opposed edge flanges bent in a direction opposite the first direction with respect to the central region to form approximately 90 degree angle with the central region. The core is formed by the plurality of square plates that are positioned into a stack of parallel plates such that the opposed flanges of one of the plurality of plates is located in contact with and inside mating opposed flanges of a plate directly adjacent thereto, thereby forming a plurality of air passages between adjacent plates such that two perpendicular air pathways are formed in an interleaved orientation.

Abstract: A heat exchanger assembly, having a first oxygen-rich copper base layer joined to a first layer of beryllium oxide, a first oxygen-rich copper layer joined to the first beryllium oxide layer, a second beryllium oxide layer joined to the first oxygen-rich copper layer, a second base layer of oxygen-rich copper joined to the second oxygen-rich copper layer, a second oxygen-rich copper base layer joined to the second beryllium oxide layer, and a heat exchanger structure direct bonded to the second base layer. The structure has a plurality of oxygen-rich copper fins stacked upon one another, each fin having a channel at a selected location therein. The material to material interfaces between adjacent stacked fins are joined to one another by direct bonding so as to form a solidified block structure. Each of the channels form a cooling chamber for receiving a fluid flow.