2556results about "Heat exchanger fastening" patented technology

A cooling or heat transfer apparatus and method is disclosed for cooling an electronic device. The apparatus includes a heat producing electronic device which may include an electronic circuit card with many heat sources. A heat transfer device is connected to the heat producing electronic device which is thermally communicating with the heat producing device for transferring heat from the heat producing device to the heat transfer device. A heat conduit is connected to the heat transfer device and thermally communicating with the heat transfer device for transferring heat to the heat conduit from the heat transfer device. A cooling housing is connected to the heat conduit and the cooling housing thermally communicating with the heat conduit for transferring heat to the cooling housing from the heat conduit. The apparatus enables the replacement of circuit cards in the field because it eliminates the need to apply thermal-interface materials.

A battery module includes a plurality of unit batteries and barriers which are interposed between the unit batteries. The barriers have front surfaces which contact the unit batteries and which are curved to bend elastically. The barriers have side surfaces which interconnect the front surfaces, and which have pathways through which a heat transfer medium flows. Connecting rods and nuts interconnect end plates of the battery module so as to press the unit batteries and the barriers together.

Novel methods of making laminated, microchannel devices are described. Examples include: assembly from thin strips rather than sheets; and hot isostatic pressing (HIPing) to form devices with a hermetically sealed wall. Laminated microchannel articles having novel features are also described. The invention includes processes conducted using any of the articles described.

A cooler capable of reducing the fabrication cost is provided. In the cooler, in which electronic parts 6 are held between neighboring tubes 1, each of the tubes 1 is formed by joining the edges of plates 1a, 1b, each of which is formed into a predetermined shape by press molding, and fins 5 for accelerating heat exchange are arranged in the tube 1. As an inner wall conventionally exists when the tube 1 is manufactured by extrusion, can be removed, it is no longer necessary to remove the inner wall by machining, therefore, the fabrication cost can be reduced.

Air conditioning units, methods of manufacturing, inventories, and buildings wherein certain heat exchanger modules are combined to make air conditioning units. In some embodiments, different combinations of different size modules are used to produce air conditioning units having different capacities wherein some identical modules are used in different size units. Various heat exchanger assemblies include spacers between modules, bends formed after modules are assembled into heat exchanger assemblies, attachment rails at the ends of the modules, inactive multi-tubes at the top and bottom of the modules, copper tubing between aluminum modules to facilitate field replacement of individual modules, name plates that attach between modules, attachment clips or spacers that snap attach to the modules, or a combination thereof, as examples.

A dual-layer heat dissipating structure includes a first heat sink, a second heat sink, and a heat pipe with a connecting portion and a curved portion, interconnecting the first and second heat sinks for thermal conduction. The first and second heat sinks each has a substrate and exterior fins protruding from two opposing ends thereof. Two substrates each includes at least one slot through out of two corresponding end plates of the same side for locating the connecting portion, and the corresponding end plates each includes an opening with respect to the slot for partially moving in the curved portion. The exterior fins of the first and second heat sinks are aligned with each other, and a snap-type connecting structures are formed on terminuses of the exterior fins. The second and first heat sinks are connected to each other by the snap-type structure, and the connection joint is reinforced by implanting soldering material.

A heat exchanger and a method for fabricating the heat exchanger are disclosed. The heat exchanger comprises a heat exchanger core that is formed from a plurality of stacked aluminum panels that are joined together via friction stir welding. Each panel in the core is formed from at least two aluminum extrusions that are joined to one another via friction stir welding.

An improved modular heat exchanger suitable for automotive applications, and particularly radiators for heavy duty equipment, and methods for forming the modular heat exchanger. The modular heat exchanger construction incorporates a brazed core assembly composed of flat-type cooling tubes and sinusoidal centers. The ability to use a brazed core assembly within a modular heat exchanger construction promotes enhanced heat transfer efficiencies associated with the use of flat tubes and sinusoidal centers, as compared to mechanically-joined round tubes and fins. The required positional tolerances of the tubes for mating with the remainder of the heat exchanger are maintained within the brazed core assembly by eliminating core shrinkage attributable to the use of clad aluminum alloy components to construct the core assembly. In two embodiments, core shrinkage is physical suppressed through the use of an expandable brazing fixture or the inclusion of sub-headers in the brazed core assembly. In a third embodiment, a clad slurry containing a braze alloy is deposited prior to brazing on a core assembly composed of unclad tubes and centers.

A heat exchanger for a battery has fluid-carrying panels and defines a multi-sided enclosure for enclosing at least two sides of the battery. The heat exchanger has first and second fluid-carrying panels defining first and second flow channels, where the first and second fluid-carrying panels are arranged at an angle to another. The heat exchanger may also include a third fluid-carrying panel defining a third flow channel, and being arranged at an angle to the second fluid-carrying panel. The heat exchanger has first and second plates sealingly joined together along their peripheries and defining a fluid flow passageway between their central fluid flow areas. The second plate may be compliant, its central fluid flow area being deformable away from the central fluid flow area of the first plate in response to a pressure of a fluid inside the fluid flow passageway.

A cooling or heat transfer apparatus and method is disclosed for cooling an electronic device. The apparatus includes a heat producing electronic device which may include an electronic circuit card with many heat sources. A heat transfer device is connected to the heat producing electronic device which is thermally communicating with the heat producing device for transferring heat from the heat producing device to the heat transfer device. A heat conduit is connected to the heat transfer device and thermally communicating with the heat transfer device for transferring heat to the heat conduit from the heat transfer device. A cooling housing is connected to the heat conduit and the cooling housing thermally communicating with the heat conduit for transferring heat to the cooling housing from the heat conduit. The apparatus enables the replacement of circuit cards in the field because it eliminates the need to apply thermal-interface materials.

A cooling apparatus (10) includes a housing defined by two aluminum parts (12, 13) which are brazed to each other. A plurality of sector-shaped recesses (21–28) are provided within the housing, and collectively define a chamber having a plurality of ribs (41–48) extending therethrough. Each recess contains a sector-shaped piece of porous material (17, 18), which is brazed to surfaces of the housing parts. The remaining space within the chamber is filled with a phase change material. Each of the ribs has therein a respective radially extending opening (101–108) which contains a heat pipe (141). Expansion accumulators (151) are mounted on the housing, and communicate with the chamber therein, in order to accommodate expansion of the phase change material within the chamber as the phase change material is heated.

The present invention provides heat exchanging elements for use in Stirling engines. According to the present invention, the heat exchanging elements are made from muliple platelets that are stacked and joined together. The use of platelets to make heat exchanging elements permits Stirling engines to run more effiecient because the heat transfer and combustion processes are improved. In one embodiment, multi-stage combustion can be introduced with platlets, along with the flexibility to use different types of fuels. In another embodiment, a single component constructed from platelets can provide the heat transfer rquirements betweeen the combustion gas / working gas, working gas in the regenerator and the working gas / coolant fluid of a Stirling engine. In another embodiment, the platelet heat exchanging element can recieve solar energy to heat the Stirling engine's working gas. Also, this invention provides a heat exchanging method that allows for multiple fluids to flow in opposing or same direction.

A cooling manifold and a method for manufacturing the cooling manifold are provided. The cooling manifold includes a housing that defines an interior region having a serpentine flow path therein. The housing has a first plurality of grooves extending from a first surface of the housing into the housing. The grooves do not fluidly communicate with the interior region. The first plurality of grooves receive a portion of a thermally conductive member therein to conduct heat energy from the thermally conductive member to the housing. The cooling manifold further includes a top cap configured to seal a first end of the housing and a bottom cap configured to seal a second end of the housing.

Techniques for heat removal are provided. In one illustrative embodiment, a heat-transfer device is provided. The heat-transfer device comprises at least one heat-dissipating structure thermally connectable to at least one heat source, wherein the heat-dissipating structure comprises at least two components thermally coupled to each other and configured to slide relative to one another, one or more of the components comprising one or more heat-dissipating fins configured to dissipate at least a portion of heat from the heat source to air proximate to the device.

An object of the invention is to provide an effective cooling-energy storing performance and a stable cooling-energy radiating performance and to realize a high productivity. An evaporator has a plurality of refrigerant tubes arranged at almost equal intervals to form therebetween accommodating spaces. A plurality of cooling-storage containers are arranged in some of the accommodating spaces and fins are arranged in the remaining accommodating spaces. A cooling-storage unit is formed by one cooling-storage container and two refrigerant tubes arranged at both sides of the cooling-storage container. Each of the cooling-storage container has projections extending from one wall portion to the other wall portion to form heat exchange portions. The cooling-storage container is connected to the refrigerant tubes by soldering material.

A shell and tube heat exchanger has two shell coolant and two tube coolant passageways communicating with a cavity in a shell. Removably received in the shell cavity is a tube bundle with tube headers. A locating screw extends through the shell to engage a locating recess in one tube header. The screw locates the tube bundle angularly about the central axis and longitudinally along the central axis, and is also used to electrically ground the tube bundle. An end cover, a flow separator, and resilient disc to take up thermal expansion are installed in each end of the shell to direct coolant through the tube bundle in multiple passes. Receivers with rotatable connectors are bonded to each shell coolant and tube coolant passageway. Angled connector nozzles can be connected to external conduits in any orientation.

An exhaust gas heat exchanger has a tank, laminated exhaust gas tubes where the exhaust gas flows, a cooling water inlet pipe and a cooling water outlet pipe. The cooling water flows into the tank and flows through water passages between adjacent exhaust gas tubes and between an inner wall of the tank and an outermost exhaust gas tube. Ribs are formed on the exhaust gas tubes so as to lead the cooling water after colliding with an inner wall toward an upstream side of the exhaust gas tubes to prevent the cooling water from being stuck. Otherwise, spaces between an inner wall of a casing and the exhaust gas tubes are regulated to keep the flow rate of the cooling water in the casing so that the cooling water is prevented from being boiled locally by slow flow rate of the cooling water.

A heat exchanger, particularly a charge air heat exchanger or exhaust gas heat exchanger, is provided for the heat exchange between a first fluid, particularly a charge air, or an exhaust gas, and a second fluid, particularly a coolant, comprising the following: heat exchanging guides for the first and second fluids, the guides being separated from each other in the core, the core having a plurality of flow channels through which the first fluid flows, and a housing that receives the flow channels and through which the second fluid flows at least one compartment lid, which is flow-connected to the flow channels, and a base that is attached to the compartment lid and that is equipped with one or more passage openings for flow channels. In order to achieve an advantageous connection of the compartment lid to the base, particularly in case the compartment lid and the base are made of different materials, the invention provides that the compartment lid is attached to the base via one or more connections as a bolted connection and / or a slotted crimping.

A dual-layer heat dissipating structure includes a first heat sink, a second heat sink, and a heat pipe with a connecting portion and a curved portion, interconnecting the first and second heat sinks for thermal conduction. The first and second heat sinks each has a substrate and exterior fins protruding from two opposing ends thereof. Two substrates each includes at least one slot through out of two corresponding end plates of the same side for locating the connecting portion, and the corresponding end plates each includes an opening with respect to the slot for partially moving in the curved portion. The exterior fins of the first and second heat sinks are aligned with each other, and a snap-type connecting structures are formed on terminuses of the exterior fins. The second and first heat sinks are connected to each other by the snap-type structure, and the connection joint is reinforced by implanting soldering material.

A heat exchanger includes flat tubes and corrugated fins. The corrugated fin includes peak portions contacting the adjacent tubes, and flat portions for making air to pass therebetween in an air flow direction. The flat portion has a first area including pairs of end louvers provided in end portions of the flat portion in a width direction between the adjacent tubes, and a flat part provided between the end louvers in the width direction. The pairs of the end louvers are arranged in the flat portion in the air flow direction. The first area is provided at least one of an upstream end portion and a downstream end portion of the flat portion in the air flow direction.

A heat pipe with superior heat transfer between the heat pipe and the heat source and heat sink is provided. The heat pipe is held tightly against the heat source by mounting holes which penetrate the structure of the heat pipe but are sealed off from the vapor chamber because they each are located within a sealed structure such as a pillar or the solid layers of the casing surrounding the vapor chamber. Another feature of the heat pipe is the use of a plurality of particles joined together by a brazing compound such that fillets of the brazing compound are formed between adjacent ones of the plurality of particles so as to form a network of capillary passageways between the particles of the wick.

Method of manufacturing a heat exchanger from a formable laminate (1, 11, 105) of a metal layer and a heat-seal layer whereby the laminate is sealed under heat and pressure to itself or to another similar laminate to form a flow channel for a heat exchange medium. Preferably the heat exchanger includes a series of fins (3, 106, 107) formed on the laminate (1, 11, 105) to increase heat transfer and may also include a water retaining layer (204).

An intercooler assembly includes a housing that defines an internal space containing a plurality of tubes. A joint between a tube and a tube plate is created by a laser welding process. A form presses the walls of the tube outwardly to form the flange. The downward force of the form not only creates the desired flange, but also exerts a pressure that holds the flange against the tube plate. The form provides for the transmission of laser energy to that the creation of the flange can be performed concurrently with the welding process.

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.

A battery module for cooling unit batteries by a thermal conductivity method is disclosed. The battery module includes a plurality of unit batteries, a heat sink provided between the unit batteries, and an evaporator connected to the heat sink.

An ice cube making machine having an evaporator assembly on which ice is formed. The evaporator assembly is constructed using micro-channel tubing that provides several channels for the flow of refrigerant within the channels. Liquid refrigerant flowing through the channels causes ice to form on the outer surfaces of the micro-channel tubing over which water flows. Refrigerant vapor is circulated through the channels to release the ice cubes from the micro-channel tubing of the evaporator assembly.

In order to improve the heat-conducting connection between a contact element (3) and a ceiling panel (1) which are adhesively bonded to one another, the contact panel (5) of the contact element (3) is provided with an adhesive depression (10) in the contact surface (6), said depression taking up only part of said contact surface, while the remaining part of the latter rests directly against the upper side of the ceiling panel (1). The contact panel (5) may be elastically or plastically deformable, e.g. along a bending groove (9), with the result that it adapts more easily to irregularities, such as those caused, for example, by slight sagging of the ceiling panel (1). This permits larger widths of the contact panel (5) without impairing the thermal contact. In order to ensure close abutment of the parts of the contact surface (6) which are not adhesively bonded to the upper side of the ceiling panel (1), the contact panel (5) can be appropriately prestressed.

A heat exchanger including a collecting tank having an outwardly extending flange around an edge, a tube plate having a connection edge, tubes having ends extending into openings in the tube plate, and an intermediate plate having an edge lying against the connection edge of the tube plate. The connection edges of the intermediate plate and the tube plate are both mechanically connected to the flange of the collecting tank. Pins in the corners of one of the tube plate and the intermediate plate secure the tube plate and intermediate plate together. The connection edge of the plates include protrusions bendable onto the edge flange of the collecting tank.