Abstract: A plate-like heat exchanger is provided with a plate-like structure; one or more flow paths respectively including opened ends, the flow paths being formed in an interior of the plate-like structure and running in a first direction; one or more covering members fixed to the plate-like structure, at least one end of the covering members extending to reach any one or more peripheries of the plate-like structure; one or more crossing flow paths defined by the covering members and the plate-like structure, the crossing flow paths being directed to a second direction intersecting the first direction and respectively being linked with the opened ends of the flow paths; and inflow and outflow ports respectively for inflow and outflow of a fluid, the ports respectively being formed at the ends of the covering members at the peripheries of the plate-like structure and linked with the crossing flow paths.

Abstract: Low-pressure drop thermal assemblies, systems and methods of making low-pressure drop thermal assemblies for use in high power flux situations. A manifold body is attached to a distributor to form a subassembly. This subassembly is in communication with a substrate surface, which has a semiconductor device in need of thermal management thereon. An enclosed cavity is formed between the target substrate surface and the subassembly, and a seal of the cavity protects critical components residing on the active surface of the semiconductor device. The distributor includes a distributed liquid impingement microjet inlet array isolated from and parallel with a distributed microjet drain array for impinging cooling fluid and removing spent heated fluid in a direction orthogonal to a target surface for maximizing the heat transfer rate, and thereby providing high cooling flux capabilities while enabling low-pressure drops.

Abstract: In an electronic apparatus having a heat-generating element therein, a cooling jacket 100 for transmitting heat generated from the heat-generating element 200 into to a liquid coolant flowing therein, comprises: a cover 130 building up a heat transfer surface to be in contact with a surface of the heat-generating element; a passage 110 for the liquid coolant, which is formed neighboring with the heat transfer surface and wound round in a “S”-like manner within an inside of a main body 120 of the cooling jacket; and an inlet 111 and an outlet 112 attached at both ends of the flow passage of the liquid coolant, and further a dispersion member 150 is disposed in the flow passage, being built up by gathering a plural number of members, each of which has a “U”-like cross-section of an aspect ratio from 10 to 20, thereby diffusing the liquid coolant therein, so as to transfer the heat from the heat-generating element thereto with high efficiency, and thereby enabling to cool down the heat-generating element, fully,

Abstract: The device for exchanging heat according to the invention includes a flow-through device through which a fluid can flow and a fin-like shaped part around which air can flow and which is joined to the one or more flow-through devices wherein the joint allows exchange of heat to occur between the air and the fluid. According to the invention, the joint includes a plurality of recesses positioned along a longitudinal direction of the one or more fin-like shaped parts.

Abstract: A brazed headerless core assembly for a modular heat exchanger suitable for automotive applications, and methods for forming the core assembly. The required positional tolerances of the tubes for mating with the remainder of the modular heat exchanger are maintained within the core assembly by minimizing core shrinkage resulting from the brazing operation during which the tubes are brazed to the centers.

Abstract: A heat-pipe type heat sink (100) includes a plurality of fins (10), at least a heat pipe (20) extending through the fins, and soldering material (40) disposed between the heat pipe and the fins. Each of the fins defines therein a through hole (12) and a cutout (13) adjacent to the through hole. A sidewall of the through hole forms a collar (122) contacting with the heat pipe, whilst a sidewall of the cutout forms at least a fringe (132) connecting with the collar. The fringe guides the soldering material in molten state to flow from the cutout towards the collar to fill in a gap formed between the heat pipe and the fins to bond the heat pipe and the fins together after the molten soldering material is cooled.

Abstract: There is provided a method of manufacturing a heat exchanger, including a first step of mounting an end part of flat tube to a header, assembling the flat tube and fins, and sealing a part where the header and the end part is attached, and a second step of increasing an internal pressure of the flat tube to expand other part of flat tubes aside from the end parts with respect to the end part of the tube in order to make the fins and the other part of the flat tube in contact each other. According to this method of manufacturing, in the second step, the other part of the flat tube that passes through the fins is expanded, so that it is possible to mechanically join the flat tube and the fins, and a plate fin-type heat exchanger with high strength and heat exchange efficiency can be easily provided.

Abstract: A cooling device including a core with a plurality of twin fins connected with a plurality of grooves on the core is disclosed. Each twin fin includes a root and a pair of vanes extending from the root. Each root is connected with one of the grooves to mount the twin fins to the core. The core can be made from a high thermal conductivity material such as copper (Cu) or graphite so that heat conducted from a component in thermal communication with the core can be conducted upward into the core and spread out through the twin fins thereby reducing heat flux concentration. Heat dissipation from the core can be increased by increasing the number of grooves and twin fins, by increasing an area of the twin fins, and by reducing a thermal resistance of a means for connecting the root of the twin fins with the grooves.

Abstract: The present invention reduces the expense of treating the surfaces of a plate material. This surface treatment method treats the surfaces of a plate material that is rolled with rolling oil and employed as a cooling fin of a heat exchanger, and includes a preparation step and a coating application step. In the preparation step, the plate material is prepared. In the coating application step, a coating is applied to the surface of the plate material without carrying out a degreasing treatment.

Abstract: An apparatus for cleaning heat exchanger tubes and in particular an improved collection system for nuclear generator cleaning and blasting media and deposit material. A suction line having a downwardly directed suction inlet is effective to vacuum airborne media and debris in said chamber and vacuum media and debris deposited on the bottom of said chamber below said suction inlet. A hopper, air jet and shaker means are provided to transport deposited media and debris toward the suction inlet. Breaker and partition means are provided to reduce back-streaming of debris into heat exchanger tubes.

Abstract: Apparatus and method for cooling heated fluids, such as exhaust gases, flowing through a heat exchanger comprising one or more exhaust plenums and one or more coolant plenums, and providing increased coolant velocity in that portion of the coolant plenums contacting the inlet portion of the exhaust plenums. Local increased coolant velocity is provided by any means, including decreasing the area-in-flow of the coolant plenums wherein increased velocity is desired, shaping or baffling either or both inlet or outlet coolant tanks in fluidic contact with coolant plenums wherein increased velocity is desired, or a combination thereof.

Abstract: The present invention relates to an integral-type heat exchanger with integrally formed heat exchange portions, in which the heat transfer between heat exchange portions is effectively intercepted, a core portion without a tank is respectively formed to improve the productivity, and the tank is used in common.

Abstract: The present invention relates to automotive heat exchanger assemblies that can withstand high environmental temperature and pressures conditions. By providing a tube strengthener inserted into the tubes at the areas of highest stress, the heat exchanger assembly is strengthened to be efficient under typical operating conditions.

Abstract: A heat sink clip and an assembly incorporating such clip are provided. The heat sink clip comprises: a body, an actuating member and a movable fastener. The body has a securing portion formed at one end thereof. The actuating member is pivotably mounted to the securing portion of said body and has a main body. The main body defines an open aperture therein. The movable fastener is pivotably connected to the open aperture of the actuating member. The actuating member is turnable relative to the body between an unlocked position and a locked position.

Abstract: A high-frequency, low-amplitude corrugated fin for a heat exchanger assembly includes a plate member that extends horizontally and vertically to define a reference plane. The plate member has a plurality of conduit portions, a first and second series of corrugated segments formed in the plate member. The first and second series of corrugated segments undulate generally equidistantly relative to and from the reference plane as viewed in cross-section. The plurality of conduit portions is inter-dispersed throughout the plate member among the first and second series of corrugated segments. Each one of the first series of corrugated segments extends at a first angle relative to horizontal and each one of the second series of corrugated segments extend at a second angle relative to horizontal such that individual adjacent ones of the first and second series of corrugated segments form at least a generally chevron-shaped configuration as viewed in plan view.

Abstract: A slot impingement cooler is formed of a plurality of sets of foils in a stacked and registered array. In each set of foils, a first foil has supply slots that direct a flow of coolant, a second foil has a plurality of effective light-trap cavities, a third foil has return slots that return the flow of coolant, and an optional fourth foil has a plurality of effective light-trap cavities. The foils have registered supply manifold openings and registered return manifold openings therethrough.

Abstract: A heat exchanger includes a plurality of flat, multi-channel heat exchange tubes extending between spaced headers. Each heat exchange tube has its inlet end in fluid flow communication to an inlet header through a transition connector. The transition connector has a body defining a divergent flow path extending from an inlet opening in its inlet end to an outlet opening in its outlet end, and a tubular nipple extending outwardly from the inlet end of the divergent flow path through the wall of the inlet header. The tubular nipple defines a fluid flow path extending between the inlet end of the divergent flow path of the transition connector and the fluid chamber of the inlet header. The inlet header has a lateral dimension less then the lateral dimension of the heat exchange tube.

Abstract: A heat exchanger has a header plate with a plurality of openings and a plurality of tubes each having an end portion inserted into one of the plurality of openings in the header plate. Each of the plurality of tubes has a generally rectangular cross-section and a longitudinal axis. An end portion of at least some of the plurality of tubes is stiffened by a respective stiffening part. Each stiffening part includes two reinforcing elements positioned opposite each other abutting an inner surface of the tubes. Each reinforcing element also includes a back portion and two side portions extending from the back portion and a connecting member connecting the side portions of the reinforcing elements.

Abstract: A method for manufacturing a heat pipe cooling device. The heat pipe cooling device includes a U-shaped heat pipe, which is embedded within a heat conductor. The heat conductor includes a rectangular base and an upper cover connected to the base. The base includes many retaining grooves which allow the absorption end of the heat pipe to be disposed therein. The upper cover includes many through holes formed thereon corresponding to the cooling end of the heat pipe. The bottom surface includes many protrusive portions corresponding to the inner side of the absorption end of the heat pipe. Furthermore, the upper cover and the base both include a positioning portion for engaging each other. In this manner, the upper cover is pressed on the cooling end of the heat pipe. The protrusive portion will push the heat pipe to tightly contact with the base.

Abstract: A heat exchanger and a method for drying a humid medium. In the heat exchanger an internal cross-over passage, allowing a humid medium to double back on itself in a zone delimited by a barrier, is provided. In a first step the heat exchanger cools itself and in a final step the heat exchanger heats itself. Separation areas allow condensation and collection of water within the heat exchanger. The heat exchanger and method enable drying of compressed air within one and the same heat exchanger package.