Abstract: A cold plate that provides air or liquid cooling for a computer circuit module and has at least one mounting plate with a board mounting surface on one side for carrying a printed circuit board assembly and a cooling surface located on the other side. A cover is disposed parallel to and spaced apart from the mounting plate with a cooling chamber defined between the two. The cooling chamber is divided into a liquid cooled section and an air cooled section. The liquid cooled section has a coolant inlet and outlet and flow channels for directing coolant through the liquid cooled section from inlet to outlet. The air cooled section has an air inlet and outlet and flow channels for directing air through the air cooled section from inlet to outlet. The cold plate is adapted so that it may be installed into a circuit module and provide either liquid cooling or air cooling for the module.

Abstract: The invention relates to an at least double-flow flat tube heat exchanger of aluminum for motor vehicles with at least one water case with cap and tube bottom connected in communication with one end of the flat tubes, the multi-flow flat tubes engaging in a soldered or brazed connection with their free ends each slit in the tube bottom, the water case being divided into at least one compartment on the inlet and one compartment on the outlet side by at least one partition arranged at the plane of each of the partitions between adjacent flows of the flat tubes, and the partition of the water case each engaging a groove or a slit in the tube bottom thereby intersecting the free ends of the flat tubes. Accordingly to the invention, it is provided that across the edge of the tube bottom openings formed therein are distributed, which are engaged by tongues formed at the free edge of the cap in a soldered or brazed connection.

Abstract: A heat exchanger according to the present invention has tube capable of flowing a fluid through interiors of the tube, a partition member provided in the tube to extend in the flowing direction of the fluid flows, a flow-through space determined by using the partition member in the tube, the fluid flowing through the interior of the flow-through space, and a non-flow-through space determined by using the partition member in the tube, the fluid being unable to flow through the interior of the non-flow-through space. Heat is exchanged between the fluid and the exterior of the tube. A portion of the tube corresponding to the non-flow-through space is mainly applied with an external action.

Abstract: A pipe includes a pipe wall having an inner wall surface. Ribs are disposed on the inner wall surface forming a multiple thread. The ribs define a mean inside pipe diameter and the ribs have a lead which is equal to between 0.6 and 0.9 times the square root of the mean inside pipe diameter. Such pipes may be used in a fossil-fuel steam generator, a solar-heated steam generator, or a heated steam generator serving as a waste-heat steam generator, a heat exchanger or a steam generator for absorbing after-heat in a nuclear power plant.

Abstract: A heat exchanger assembly suitable for use in a heating, ventilating and air conditioning system of a vehicle comprising a housing, a heat exchanger core disposed in the housing and spaced from the housing to provide a peripheral spacing between the core and the housing and a seal disposed in the peripheral spacing including a first section engaging a portion of the core and having a first hardness and a second section integrally molded with the first section engaging a portion of the housing and having a second hardness less than the first hardness.

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 vibration and shock resistant heat dissipating device for removing heat from a heat generating object is disclosed. The heat dissipating device includes a retaining clip having a central member and a pair of legs depending downwardly therefrom. An aperture is disposed through the central member and defines a central member bore having female threading formed therein. The free ends of the pair of legs are secured relative to the heat generating object. A heat dissipating member having a threaded base portion with a substantially flat bottom surface is adapted to be threadably received in the center member bore so that the flat bottom surface of the heat dissipating member is in flush thermal communication with the heat generating member. A ratchet member is disposed between the retaining clip and the heat dissipating member for controlling threaded receipt of the threaded base portion in the retaining clip.

Abstract: A heat exchanger has a header tank, plural tubes through which refrigerant flows and a connector for connecting the tank to a pipe. The header tank has a pair of protruding portions protruding from an outer surface of the header tank and integrally formed with the header tank. When the connector is bonded to the tank by brazing, the connector is disposed between the protruding portions, and each of the protruding portions is bent toward the other at a protruding end thereof by plastic deformation. As a result, the connector is clamped by the protruding portions and is fastened to the header tank. Thus, the connector is readily and tentatively fastened to the header tank before bonded to the header tank by brazing.

Abstract: A heat exchanger baffle and method by which the internal passage of a heat exchanger member is divided into two separate flow regions. The baffle includes first and second members having planar portions that define edges of the first and second members. The planar portions are connected to each other so as to form a connection region between the first and second members. The connection region is deformable to enable the planar portions to be folded onto each other. The baffle can then be installed in a heat exchanger member by installing the planar portions together into a slot in the wall of the heat exchanger member. After installation, the planar members remain substantially parallel to each other, and the connection region preferably contacts a portion of the wall opposite the slot. The manner in which the baffle is folded serves to bias the first and second members against the slot, so that the baffle is more reliably retained within the slot prior to being permanently secured by such methods as brazing.

Abstract: A heat exchanger, particularly an evaporator, has a number of ducts (19) for the flow of a cooling fluid which are connected in series, each duct (19) being produced as a pair of plates (13) including a concave region (3) limited by an edge (5) and provided with a number of studs forming dimples (9), the dimples being randomly distributed. The invention applies mainly to the air conditioning of motor vehicles.

Abstract: A method for establishing a thermal interface between an electrical component and a heat sink including the selection of a compound having a melt temperature above the normal operating temperature of the component. The electrical component initially reaches an initial operating temperature sufficient to deform or melt the compound and fill the spaces between the mating surfaces of the component and heat sink. Upon cooling, a solidified thermal joint is permanently established which precludes the component from heating beyond its normal operating temperature upon subsequent operation. As the normal operating temperature of the component is below the melt point of the compound, the compound remains in a solid state. The compound is selected so as to deform only during initial component operation so as to avoid the problems of liquefaction.

Abstract: Disclosed is a heat exchanger with flat tubes of two columns, including: a first header having a plurality of connecting grooves formed at a zigzag arrangement of two columns; a second header having a plurality of connecting grooves formed at the corresponding positions of the first header; and a plurality of flat tubes coupled to the plurality of connecting grooves of the first and second headers, for transferring refrigerant, wherein a first flat tubes at a first column are placed at fluid inlet side of air, and a second flat tubes at a second column are placed at ejecting outlet side of the air.

Abstract: A heat exchanger is provided with a casing (5) in which a heat exchanger core (3) is received. The core (3) is provided with a pair of inlet/outlet convex portions (1) in its opposite end portions. These pipes (1) pass through the casing (5) to project outward.

Abstract: An air conditioning coil system having a first and a second outside tubing slab, a first and a second inside tubing slab, the inside tubing slabs positioned between the outside tubing slabs, a top of the first outside tubing slab contacting a top of the first inside tubing slab, a top of the second outside tubing slab contacting a top of the second inside tubing slab, and a bottom of the first inside tubing slab contacting a bottom of the second inside tubing slab, each tubing slab having a plurality of spaced-apart heat exchange fins, each outside tubing slab having a plurality of spaced-apart tubing rows extending through he plurality of heat exchange fins of the corresponding outside tubing slab, and each inside tubing slab having at least one tubing row extending through the plurality of heat exchange fins of the corresponding inside tubing slab.

Abstract: An air outlet has a plurality of vertical vortex generating structures 21 in a triangular shape arranged so as to be oriented at an angle &thgr; with respect to diffused air.

Abstract: A mounting means for an automotive condenser (16) includes a pair of aligned through holes (24) at the upper ends of a pair of manifolds (20), which are pierced outboard of upper end plugs (22). The lower ends of the manifolds (20) are unmodified. The tanks (14) of a radiator (10) include a pair of mounting features (30, 32) spaced apart by substantially the end to end length of the manifolds (20). One pair of mounting features (30) fits closely within the lower ends of the manifolds (20), while the other pair (32) fits closely within the aligned through holes (24) at the upper ends.

Abstract: A high-density, staggered pin fin array, and a method for manufacturing the pin fin array, are disclosed. The pin fin array includes a plurality of fin members, each having a plurality of elongated, pin-shaped fins arranged in a row; and, at least one connector for connecting the fins together, each at one end thereof. The plurality of fin members is arranged in a stack, wherein respective fins of each fin member are in registration with slots formed in its adjacent fin members in the stack. The method for manufacturing the pin fin array includes forming a plurality of fin members from a raw planar, tape, or thin layer stock, positioning the fin members relative to each other so that the respective fins of each fin member are in registration with the slots formed in adjacent fin members, and joining each fin member with the adjacent fin members.

Abstract: A steam condenser according to the present invention has a tube nest which has a massed region of cooling tubes and a plurality of tube bundles with flow passages. A noncondensable gas extracting tube is arranged among the cooling tubes in the massed region. A cooling unit or a steam condensing chamber for condensing steam contained in noncondensable gases which are extracted from the noncondensable gas extracting tube is arranged in the massed region. A discharge flow passage is formed at least partially in the tube next so as to enable the noncondensable gases from the cooling unit or the steam condensing chamber to be discharged outside of the condenser, whereby condensing efficiency of the steam contained in the noncondensable gases which flow into the cooling unit or the steam condensing chamber is improved.

Abstract: The present invention relates to a heat exchanger applied for an IC production line or the like, wherein, on plural independent tube holding holes 20 formed on holding plates 20, ends of resin tubes are arranged, and a predetermined length range &agr; of the each resin tube is integrally fused into the each holding plate inside the tube holding holes. Each fusing portion for fusing the plural resin tubes into the holding plates has a non-contacted congestion structure wherein the resin tubes are not mutually contacted, thereby increasing reliability on connecting the fusing portion, and meanwhile, facilitating miniaturization of the heat exchanger by increasing heat-exchange efficiency and elements such as the resin tubes and the holding plates may be made of a fluororesin.

Abstract: A coiled heat exchanger and a method of making a coiled heat exchanger including a pair of sheets coiled together to form a core having opposite faces. A first sheet has at least one edge extending substantially coplanar with the sheet. A second sheet has at least one edge having alternating portions along the edge being respectively raised and unraised with respect to the plane of the sheet such that when the sheets are coiled together the at least one edge of the second sheet is configured to abut portions of the at least one edge of the first sheet at locations corresponding to the alternating raised portions. These edges and their alternately abutting portions form openings in the form of angular sectors on a face of the core that are configured to pass fluid therethrough.