Abstract: A liquid cooling device includes a thermally conductive base, a cover, and a metallic partition. The thermally conductive base has a fluid chamber and a plurality of fins. The fins are located in the fluid chamber and protrudes from an inner surface of the thermally conductive base facing the fluid chamber. Every two of the fins located adjacent to each other define a channel therebetween. Distal ends of at least part of the fins located away from the inner surface together form a covering structure partially coving the channels. The metallic partition is located between and welded to the covering structure and the cover.

Abstract: A loop heat pipe includes an evaporator configured to vaporize a working fluid, a condenser configured to liquefy the working fluid, a liquid line connecting the evaporator and the condenser, and a vapor line connecting the evaporator and the condenser. The evaporator, the condenser, the liquid line, and the vapor line are formed by stacking a lowermost metallic layer, an uppermost metallic layer, and an intermediate layer set formed of a plurality of metallic layers, which is provided between the uppermost metallic layer and the lowermost metallic layer. The evaporator, the liquid line, the condenser, and the vapor line form a loop-shaped flow path through which the working fluid flows, and a portion of the flow path is formed in the intermediate layer set.

Abstract: Several innovative technologies, including pressure-drop minimization, advanced refractory high entropy alloys, and advanced manufacturing can provide a compact heat exchanger that extends the state-of-the-art heat-exchanger operating range. The compact heat exchanger can reduce pressure drop losses by 100 to 500%, while retaining most of the heat transfer. The compact heat exchanger can be fabricated from refractory high entropy alloys that have favorable corrosion, thermal fatigue, and creep properties at high temperatures and pressures. Therefore, the compact heat exchanger using high entropy alloys can operate at >800° C. and 80 bars.

Abstract: The invention relates to a heat exchanger for vaporizing a coolant fluid by heat exchange with a calorigenic fluid, said exchanger comprising several parallel plates defining a plurality of passages between them which are suitable for the coolant fluid or calorigenic fluid to flow, a first wave and a second wave extending between two successive plates so as to define a plurality of channels within the same passage, said first and second waves comprising two adjacent edges, at least one assembly member extending from one edge to the other so as to connect the waves to one another. According to the invention, the assembly member is forcibly engaged in at least one part of a channel of the first wave on one hand, and in at least one part of a channel of the second wave on the other hand.

Abstract: A heat exchanging member including a hollow pillar shaped honeycomb structure having partition walls defining cells, the cells penetrating from a first end face to a second end face to form flow paths for a first fluid, an inner peripheral wall, and an outer peripheral wall; and a covering member being configured to cover the outer peripheral wall of the pillar shaped honeycomb structure. The heat exchanging member is configured to perform heat exchange between the first fluid and a second fluid flowing through an outer side of the covering member. In the heat exchanging member, in a cross section of the pillar shaped honeycomb structure perpendicular to a flow path direction of the first fluid, the cells are radially provided, and each of the inner peripheral wall and the outer peripheral wall has a thickness larger than that of each of the partition walls.

Abstract: A cold plate includes an outer housing, and a fluid circuit within the outer housing. The fluid circuit includes a fluid inlet located on a first sidewall of the outer housing, a fluid outlet located on the first sidewall of the outer housing, and a primary channel disposed between and fluidly connecting the fluid inlet and the fluid outlet. The primary channel includes an inlet leg downstream of the fluid inlet, an outlet leg upstream of the fluid outlet, and a connecting portion fluidly connecting the inlet leg and the outlet leg. The fluid circuit further includes a first secondary channel branching from the inlet leg of the primary channel, and a second secondary channel branching from the outlet leg of the primary channel.

Abstract: A heat exchanger includes a first fluid pathway enclosed in a heat exchanger body to convey a first fluid through the heat exchanger body and a second fluid pathway enclosed in the heat exchanger body to convey a second fluid through the heat exchanger body and facilitate thermal energy exchange between the first fluid and the second fluid. The first fluid pathway and the second fluid pathway together are arranged in a spiral arrangement extending along a central axis of the heat exchanger.

Abstract: A heat exchanger is characterized by having two or more fluid flow circuits, each formed by multiple small cross-section “micro-tubes” contained within a surrounding metal structure, or “metal matrix.” Its function is to efficiently transfer heat from one fluid to another in a highly compact assembly. Most any metal or metal alloy can be considered for the micro-tubes. The micro-tubes, while typically arranged in alternating layers of alternating flow circuits, may be organized in any number of arrangements including co-linear and at cross angles to provide for co-flow, counter flow and cross flow. The metal matrix, is provided in one embodiment by a metal or metal alloy powder consolidated in a hot isostatic pressing (HIP) process. This process also joins the tubes together and to the matrix itself, producing a monolithic structure.

Abstract: A heat exchanger assembly comprising a frame (10) and a heat exchanger (20), wherein the heat exchanger (20) comprises a core of plates (21) stacked in a first direction, with edges (22) protruding along their outline, characterized in that the frame (10) comprises a retaining element (30) configured to engage plate edges (22) so that the retaining element (30) restricts movement of the heat exchanger (20) with respect to the frame (10) in the first direction, wherein the retaining element (30) comprises an elongated core (31) attached to the frame (10) and plurality of protrusions (32) protruding from this core (31), said protrusions (32) configured to protrude between plate edges (22).

Abstract: A distributor and a heat exchanger each include a first plate, a second plate, and a third plate. The first plate is stacked on the second plate in a stacking direction. The second plate is stacked on the third plate in the stacking direction. The first plate has a first through hole. The second plate has a first hollow portion communicating with the first through hole, a plurality of second hollow portions communicating with the first hollow portion, and a plurality of third hollow portions each communicating with one of the plurality of second hollow portions. The third plate has a plurality of second through holes each communicating with one of the plurality of third hollow portions. A first dimension L1 that is the width of the first hollow portion is larger than a second dimension L2 that is the width of each of the plurality of second hollow portions.

Abstract: A water cooling heat dissipation structure includes a first and a second plate, a water cooling heat dissipation body, which is composed of a plurality of stacked heat dissipation members. The first plate, the heat dissipation members, and the second plate are in sequence stacked up into one and another to integrally form the water cooling heat dissipation structure by heat treatment. The water cooling heat dissipation body has a top side attached to one side of the first plate and a bottom side thereof attached to the second plate, so as to secure two sides of a flow passage of the water cooling heat dissipation body. A first and a second connecting portion is respectively provided on two sides of the first plate or the water cooling heat dissipation body, and the first and the second connecting portion is communicable with the flow passage.

Abstract: An EGR cooler includes a tube assembly formed by stacking a plurality of tubes in which exhaust gas flows and a cover plate having a mounting portion formed concavely to mount the tube assembly thereon. A baffle is mounted at the tube assembly and adjusts flow of coolant inflow from a cylinder block. An inlet cover is installed on a first side of an outer surface of the cover plate to supply the exhaust gas to each tube and an outlet cover is installed on a second side of outer surface of the cover plate to exhaust the exhaust gas from each tube. At least one coolant passage in which the coolant flows is formed between the plurality of tubes.

Abstract: A plate assembly for a heat exchanger includes a first plate, a second plate, and an intermediate plate arranged between the first and second plates. The intermediate plate is joined to the first and second plates at peripheral edges to create a sealed periphery of the plate assembly. Corrugations of the intermediate plate provide crests and troughs that are in contact with inwardly facing surfaces of the first and second plates. The plate assembly can be configured as a battery cooling plate heat exchanger to transfer heat from a battery to fluid flowing through the plate assembly.

Abstract: A heat exchanger (1; 1*; 100) includes a bundle of tubes (8), each extending in a respective elongation direction (X1) and defining a flow path for a working fluid that extends in the elongation direction, wherein each tube (8) of the bundle of tubes can be supplied with a working fluid; a matrix (6) of thermally conductive material that houses the tubes (8) of the bundle and that is configured, in use, for promoting heat exchange between working fluids that run through corresponding tubes (8) of the bundle; and a shell (4) made of thermally insulating material arranged around the matrix (6), wherein: the matrix (6) is made up of a plurality of sections (10; 10*) arranged aligned in the elongation direction (X1) and alternated by thermal interruptions (12) that extending transversely to the elongation direction (X1).

Abstract: A heat sink includes a plurality of layers being disposed substantially parallel with a surface of a heat source. The layers include a plurality of pin portions spaced apart from each other in a planar arrangement wherein the pin portions of the layers are stacked and bonded to form pin fins extending in a transverse direction relative to the heat source to sink heat. A compliant layer is disposed between the pin fins and a mechanical load. The compliant layer provides compliance such that the pin fins accommodate dimensional differences when interfacing with the heat source.

Abstract: A loop heat pipe includes an evaporator that vaporizes a working fluid, a condenser that liquefies the working fluid, a liquid pipe that connects the evaporator and the condenser, a vapor pipe that connects the evaporator and the condenser, to form a loop-shaped passage together with the liquid pipe, and a porous body provided inside the liquid pipe or inside the evaporator. The porous body includes a first metal layer including a first bottomed hole that caves in from a first surface of the first metal layer, and a second bottomed hole that caves in from a second surface of the first metal layer, opposite to the first surface. The first bottomed hole and the second bottomed hole partially communicate with each other to form a pore.

Abstract: A cooling device includes: a case equipped with a supply port for a coolant and a discharge port for the coolant and a laminated core disposed in the case, the laminated core comprising a plurality of punched plates, each with the same shape, and each punched plate including: a plurality of linear portions that extend in waveform shapes in a flow direction of the coolant and that are spaced apart in an amplitude direction of the waveforms, and linking portions that are spaced apart in an extension direction of the linear portions and that link the linear portions to one another in the amplitude direction, the punched plates being alternately disposed front-to-back and the linear portions being superposed over one another, and the linking portions of the superposed punched plates being disposed spaced apart in the extension direction.

Abstract: A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.

Abstract: Multi-stage microchannel heat and/or wherein said heat and/or mass transfer system includes a system selected from a group of heat exchanger, mass transfer system, and combination thereof, mass transfer system attains an enhanced heat transfer, low pressure drop, and optimized flow distribution and stability for a single- and two-phase applications by combining microchannels formed on industrially available fin tubes, and a multi-stage flow distributing manifold, and directing the flow of a heat exchanging medium through multiple passes formed by short length of respective microchannels, while controllably by-passing some microchannels when migrating the flow of the heat exchanging medium from the microchannels into multiple mixing stages provided by a specific configuration of the manifold.

Abstract: The present invention provides enthalpy exchanger elements (E, E?) and enthalpy exchangers comprising such elements. Furthermore, the invention discloses a method for producing such enthalpy exchanger elements and enthalpy exchangers, comprising the steps of a) providing an air-permeable sheet element (1); b) laminating at least one side (1a, 1b) of the sheet element (1) with a thin polymer film (3, 4) with water vapor transmission characteristics; and c) forming the laminated sheet element (1) into a desired shape exhibiting a three-dimensional corrugation pattern (5, 5, . . . ).

Abstract: An apparatus and method of forming a heat exchanger including a thermally compliant material and geometry with a core having a first set of flow passages and a second set of flow passages passing through the core. A first manifold of high temperature and strength material defines a fluid inlet for the first set of flow passages and a second manifold of high temperature and strength material defines a fluid inlet for the second set of flow passages. At least one of the first and second manifolds can include an in-situ compliant portion to provide for compliance during thermal expansion of the heat exchanger.

Abstract: Provided are heat exchangers that have a plurality of integrally formed contiguous unit cells defining a three-dimensional lattice of repeating unit cells, and methods of forming a baffle in a three-dimensional lattice structure of a heat exchanger. The plurality of integrally formed contiguous unit cells include a plurality of pathway cells and a plurality of baffle cells integrally formed among the plurality of pathway cells. The plurality of pathway cells have a solid domain that includes interior and exterior pathway-cell surfaces that respectively contiguously define first and second furcated fluid domains for a first fluid and a second fluid to respectively flow across the plurality of pathway cells. The plurality of baffle cells have a solid domain that includes one or more furcated-pathway blinds that together provide one or more furcated-pathway baffles that contiguously define a boundary to a furcated fluid domain.

Abstract: The invention relates to a method for producing a corrugated fin element for a heating register or for another heating device, through which corrugated fin element a flow can pass, to a corrugated fin element produced according to such a method, and to a heating register designed with such corrugated fin elements, wherein the corrugated fin elements are produced by unfolding.

Abstract: A heat exchange system for commercial kitchen installations, having a dedicated plenum to receive combustion emissions separate from cooking emissions, where the plenum has a heat exchange structure that efficiently and directly draws heat from the combustion emissions. The plenum heat exchange structure reduces the air volume that a ventilation hood covering the kitchen appliances needs to process and filter, while concurrently obtaining heat from combustion emissions without interference from cooking emission effluents such as grease, smoke, or particulate matter. Heat drawn out of the combustion emissions can be stored in a thermal reservoir for powering other parts of the commercial kitchen or other uses. The diverted airstream from combustion emissions, once passed through the heat exchange structure, can further ventilate through an additional heat exchanger, to provide tempered air to an interior location, such as the commercial kitchen via an air supply duct in the cooking emission ventilation hood.

Abstract: A micro environmental control system that can remove or add 30W from or to the near range personal microenvironment of a user. For cooling, the ?X uses a micro vapor compression system during the un-occupied period to freeze a phase-change-material in a thermal storage module. A fan then moves air over the phase-change-material to deliver cooled air. Heating is delivered by a small electric heater integrated into a condensing unit. The resulting system is inexpensive to build and uses a limited amount of energy.

Abstract: The invention relates to an assembly for a turbine engine (1), the assembly including: a casing (20) extending along a longitudinal axis (X-X?) of the turbine engine (1), a surface heat exchanger (100) arranged along an inner edge (22) of said casing (20) and including a plurality of cooling fins (110) extending radially inwards and longitudinally, and a central body (30) partially concentrically arranged within said casing (20), said casing (20) and the central body (30) defining between one another an annular air channel (Va), the width (hVa) of which is substantially constant in the region of the heat exchanger (100). The assembly is characterized in that the fins (110) are distributed over more than 180° of the inner edge (22) of the casing (20) and in that the mean height ((hMOV) of the fins (110) is more than 5% of the width (hVa) of the annular air channel (Va) in the region the heat exchanger (100).

Abstract: A heat sink and its manufacturing method. The heat sink includes a base and plural heat pipes. The base has a first surface, plural parallel heated areas concavely formed on the first surface, a protrusion disposed between any two heated areas and protruding in a direction towards the first surface, and at least one notch formed on each protrusion. A first protrusion portion and a second protrusion portion are formed at the top of the protrusion and the top of notch respectively. The heat pipes are embedded into the heated areas respectively in the lengthwise direction, and the heat pipes at the notches of the protrusions are attached and in contact with each other. The notch of each heat pipe may be compressed and deformed, so that the heat pipes are in contact with each other.

Abstract: A heat exchanger includes a core defining a first passageway configured for a first fluid to flow through and a second passageway configured for a second fluid to flow through. The core includes a plurality of unit cells coupled together. Each unit cell of the plurality of unit cells includes a sidewall at least partly defining a first passageway portion, a second passageway portion, a plurality of first openings for the first fluid to flow through, and a plurality of second openings for the second fluid to flow through. Each unit cell of the plurality of unit cells is configured to enable the first fluid to combine and divide in the first passageway portion. Each unit cell is further configured to enable the second fluid to combine and divide in the second passageway portion.

Abstract: Plate assemblies configured for use in heat exchangers are provided. The plate assemblies may include one or more plates defining an inlet end, an outlet end, and flow channels configured to receive a flow of fluid from the inlet end and direct the fluid to the outlet end. The flow channels may be defined by protrusions, grooves, and/or orifices defined in flow plates, and spacer plates may separate the plate assemblies from one another. The flow channels may be interconnected such that for each of a plurality of intermediate positions along the flow channels, a plurality of flow paths are defined. Thus, in an instance in which a blockage occurs in one of the flow channels, flow may be prevented through only a portion of the flow channel.

Abstract: A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.

Abstract: A heat exchanging system includes one or more heat exchanging portions, wherein each heat exchanging portion includes an optimized internal fin structure. The optimization of the optimized internal fin structure includes receiving existing heat exchanging system information, analyzing exterior fluid flow around the one or more heat exchanging portions as a heat flux analysis, determining boundary conditions of a heat flux distribution based on the heat flux analysis, receiving material properties of the one or more heat exchanging portions, and designing the optimized internal fin structure based on the existing heat exchanging system information, the boundary conditions of the heat flux distribution, and the material properties of the one or more heat exchanging portions.

Abstract: A device can comprise a plurality of layers stacked and bonded on one another, wherein at least one layer of the plurality of layers comprises: a first active region comprising first pin portions positioned in a first planar arrangement; and a second active region comprising second pin portions positioned in a second planar arrangement, wherein the second planar arrangement is different from the first planar arrangement. The device can also comprise a conformable layer adjacent to at least one of the plurality of layers.

Abstract: Additively manufactured monolithic structures for containing and directing flows of fluids are described herein, which can achieve high contact area between fluids and solids while maintaining uniform flow conditions and requiring low applied pressures to yield desired flow rates, for use in heat exchangers, chromatography columns, catalytic converters, etc. An exemplary monolithic structure comprises a plurality of tiled unit cells having a same shape, where the tiled unit cells are integrally formed as a single component. The tiled unit cells are arranged to define one or more interior regions of fluid flow, one or more inlets to each interior region of fluid flow, and one or more outlets to each interior region of fluid flow. The structures and methods of tiling herein are suited to additive manufacturing technologies such as projection stereolithography, multiphoton lithography, etc.

Abstract: Disclosed are various turbulent, corrosion-resistant heat exchangers used in desiccant air conditioning systems.

Abstract: Methods, apparatuses, and systems for fluid connections in modular cooling systems for cooling electronic components installed in equipment racks. A cold plate is positioned adjacent to a support manifold in a mated position, where the cold plate comprises a plate connector. The plate connector comprises a plate outer sleeve and defines a central passageway. The support manifold comprises a manifold connector, which comprises a manifold outer sleeve and defines a central passageway. An outer surface of the manifold outer sleeve is positioned adjacent to an outer surface of the plate outer sleeve. A cam is rotated about a pivot pin and engages with a plate retainer to secure the cold plate against the support manifold, and the central passageway of the plate connector is connected in fluid communication with the central passageway of the manifold connector.

Abstract: A plurality of transducer bars may be concurrently translated from a first orientation to a second orientation by a translation system that has first and second plates. The first plate can have a plurality of first notches with each first notch shaped to hold a transducer bar in a horizontal orientation. The second plate can have a plurality of second notches with each second notch shaped to translate the transducer bar from the horizontal orientation to a vertical orientation.

Abstract: A data center can include at least one computing room, and at least one rack system disposed in the computing room. The rack system includes a rack housing that at least substantially encapsulates an interior space, and a plurality of computing devices mounted to the rack in the interior space. The data center can further include a cooling system. The cooling system includes a conduit that is disposed in the interior space of the rack housing and a fluid that flows through the conduit, wherein heat is transferred from air in the interior space to the fluid to produce cooled air in the rack housing.

Abstract: An indirect evaporative cooler core is manufactured from a continuous sheet of hydrophobic material. Flocking is provided on at least a partial surface area of at least one side of the sheet, to render the flocked surface area wettable. Air flow guiding structures are formed upon at least one of the first side and the second side of the sheet. Fold lines are defined in the sheet defining plates extending between adjacent fold lines. Slits are formed along the fold lines. Accordion pleating the sheet at the fold lines forms alternating wet and dry passages between the plates, the wet passages formed between opposing wettable surfaces, the dry passages formed between non-flocked surfaces, and the accordion pleating causes the slits in the folds to open and form air inlets and outlets in communication with the air flow passages.

Abstract: This monolithic reactor is an adaptable and scalable, flow-through reaction containment apparatus embodied as a one-piece monolithic block of material that retains re-configurability to improve reaction processing. This apparatus increases operational flexibility, adaptable design, and vastly simplifies construction of tubular reaction-containment configurations. Internally, the monolithic block comprises one or more closely spaced, functional voids which operate as fluid channels that can be configured in various geometric arrangements. The apparatus is widely scalable, provides high thermodynamic efficiency, manufacturing simplicity, and affordability for varied operations through additive manufacturing, and has a compact physical footprint.

Abstract: In accordance with the present invention, there are provided heat dispersing articles, assemblies containing same, methods for the preparation thereof, and various uses therefor. In one aspect of the present invention, there are provided heat dispersing articles. In another aspect of the present invention, there are provided methods for producing the above-referenced articles. In yet another aspect of the present invention, there are provided assemblies containing the above-referenced articles. In still another aspect of the present invention, there are provided methods for making the above-referenced assemblies. In yet another aspect, there are provided methods to dissipate the heat generated by portable electronic devices.

Abstract: A stacked-plate heat exchanger may include a high-temperature (HT) coolant circuit, a low-temperature (NT) coolant circuit, heat exchanger plates stacked upon one another and through which two coolants and a medium to be cooled may flow, and an obstruction configured to force a deflection of one of the coolants in the low-temperature coolant circuit. The two coolants may have different temperature levels in the high-temperature and low-temperature coolant circuits. The heat exchanger plates may include a partition wall separating the high-temperature and low-temperature coolant circuits from each other. The high-temperature and low-temperature coolant circuits may include a central HT coolant inlet and a central NT coolant outlet, respectively, adjacent to the partition wall and together forming a teardrop shape separated by the partition wall. The HT coolant inlet may have a part-circle-like shape and the NT coolant outlet may have a triangular shape, each having one side formed by the partition wall.

Abstract: A method for the production of a heat exchanger is provided, particularly a sorption heat exchanger, in which several components of the heat exchanger have a ferrous based material, such as pipes, the pipes finishing the bottoms, and the bottoms and the pipes enclosing the housing components are coffered and then soldered. In one method, which reliably realizes the soldering of the joints with different widths, a brazing foil is introduced during the coffering of the components of the heat exchanger formed of steel or stainless steel between the joints of the components of the heat exchanger, and then the joints are filled with a low-melting solder and soldered without flux material.

Abstract: The application relates to a heat exchanger and a connecting system for the heat exchanger. This subject matter includes a housing formed by a top part and a bottom part and a first connecting element and a second connecting element connected to these top and bottom parts. Specific embodiments of the subject matter are shown in which the connecting elements connect the housing top part and bottom part by a positive and/or material connection. The advantages of each embodiment over prior approaches are too numerous to include in this abstract, but will be apparent to one of ordinary skill in the art when reviewing the full specification.

Abstract: Light-weight, heat-managing structures feature open-cell lattice, honeycomb, and/or corrugated (prismatic) arrangements in their substructures, combined with heat pipe/heat plate arrangements for managing heat to which the structures are subjected. The structures are well suited to aerospace applications and may be employed in the leading edge of wings or other airfoil-shaped components; gas turbine engine components; rocket nozzles; and other high-heat, high-stress environments.

Abstract: Plate assemblies configured for use in heat exchangers are provided. The plate assemblies may include one or more plates defining an inlet end, an outlet end, and flow channels configured to receive a flow of fluid from the inlet end and direct the fluid to the outlet end. The flow channels may be defined by protrusions, grooves, and/or orifices defined in flow plates, and spacer plates may separate the plate assemblies from one another. The flow channels may be interconnected such that for each of a plurality of intermediate positions along the flow channels, a plurality of flow paths are defined. Thus, in an instance in which a blockage occurs in one of the flow channels, flow may be prevented through only a portion of the flow channel.

Abstract: A hybrid closed circuit heat exchanger having a dry indirect section and an evaporative indirect section. The evaporative indirect section has multiple sub-sections. An evaporative fluid distribution system is configured to selectively distribute evaporative fluid over all, part, or none of the sub-sections. A process fluid flow path control system is configured to selectively direct the process fluid through one or more sub-sections. The process fluid flow path control system may send all of the process fluid through two or more sub-sections in equal amounts or in different amounts. There is preferably no evaporative heat exchange section bypass flow path.

Abstract: A modular system for heat exchange between fluids includes a plurality of open elements that, by means of two end plates, are connected together. An open element is constituted of a folded and sealed sheet material that is arranged in a frame.

Abstract: An electronic device has a housing, at least one actuator attached to the housing, and a deformable skin having air pores. The actuators are attached to both the housing and the deformable skin to impart a motion that causes a varying amount of separation. A thermal exchange cavity is defined by the housing and the deformable skin. A skin oscillation controller is contained with the housing and is electrically connected to the at least one actuators that vary a volume of the thermal exchange cavity by deforming the deformable skin, causing an exchange of ambient air through the air pores to convectively cool the housing.

Abstract: The invention relates to a plate-shaped heat exchanger for a cooling device comprising at least one heat exchanger package, in particular for a motor vehicle, consisting of a plurality of openings for accommodating a pipe conducting a coolant, wherein each opening is surrounded by an passage and a plurality of projections are distributed between the passages for the heat exchange with the medium to be cooled. In order to allow a high performance increase of a cooling device, yet a low increase in pressure loss of the charge air, a plurality of projections are arranged around an passage, wherein the projections have a shape that assures deliberate heat conduction from the projections to the passage.

Abstract: A method and apparatus for the liquefaction of natural gas or conversion of other gases to liquids that uses nanosecond or femtosecond pulse laser machined structures on surfaces of heat exchangers. The heat exchanger has metal plate and plate fin surfaces with increased surface area to volume ratio from the nanosecond or femtosecond pulse laser machined structures on its surfaces. Heat transfer and cooling are accelerated by exposing the gas to nanosecond or femtosecond pulse laser nanomachining structures. Fluid refrigerant flows through the structures in the heat exchanger metal plate and plate fins, and exchanges heat with refrigerant flowing through the structures.