A heat exchanger for a boiler or similar heating device comprises a casing and a tube assembly inside the casing. The tube assembly includes a plurality of modules (6.sub.x, 6.sub.y) arranged in a juxtaposed configuration, each module (6.sub.x, 6.sub.y) having an at least approximately annular shape. The modules (6.sub.x,6.sub.y) each include a respective tube (7) that is at least partially embedded in a respective thermally conductive body (8) overmoulded to the tube (7). Each thermally conductive body (8) defines an upper face and a lower face of the respective module (6.sub.x, 6.sub.y), where at least at the upper face of a first module (6.sub.y) and the lower face of a second module (6.sub.x) the corresponding thermally conductive body (8) defines upper fins (24) and lower fins (23.sub.x), respectively, which extend in height substantially in an axial direction of the tube assembly and extend in length substantially in a radial direction of the tube assembly (5). The upper fins (24) of the thermally conductive body (8) of the first module (6.sub.y) are in an axially staggered position with respect to the lower fins (23.sub.x) of the thermally conductive body (8) of the second module (6.sub.x), with the upper fins (24), on the one hand, and with the lower fins (23.sub.x), on the other hand, which are at mutual distances such that the upper fins (24) of the thermally conductive body (8) of the first module (6.sub.y) are set between the lower fins (23.sub.x) of the thermally conductive body (8) of the second module (6.sub.x), or vice versa. In this way, between each upper fin (24) of the thermally conductive body (8) of the first module (6.sub.y) and each lower fin (23.sub.x) of the thermally conductive body (8) of the second module (6.sup.x), or vice versa, a respective radial passageway (P) is defined for the combustion fumes produced by a burner equipping the heat exchanger.

The invention relates to a method for producing a cooling device (10), which has at least one hollow body (30) made of a first material having good thermal conduction and a base body made of a second material having good thermal conduction, and a pre-product for the production of a cooling device (10) and a cooling device (10) for an electrical assembly and an electrical assembly having a cooling device of this kind. The hollow body (30) is coated on the outside with a third material and is filled on the inside with the third material, which has a lower melting temperature than the first material and the second material, wherein the filling (5) completely fills the hollow body and is then cooled, wherein the filled hollow body (30) is placed in a die-casting mould, wherein the second material is introduced into the die-casting mould as die casting with a first temperature and flows around the hollow body (30) at least partially, wherein the die casting melts off the third material of the surface coating (36) and melts on the first material of the hollow body (30) so that at least in regions an integral connection is formed between the die casting of the second material, which forms the base body (20), and the first material of the hollow body (30), wherein the die casting of the second material becomes rigid and solid, wherein during the solidification phase, the die casting of the second material heats the filling (5) made of the third material in the interior of the hollow body (30) until the melting temperature is reached, and wherein the melted third material is removed from the hollow body (30) under pressure.

The present invention relates to a method of manufacturing a cooling device using a heat pipe in which, using casting, the heat pipe is embedded inside a housing, and the method includes a filling step in which a predetermined support member is filled inside a pipe to prevent deformation of the pipe by a pressure of a melt being injected into a cavity of a mold that is closeable, a pipe seating step in which the pipe filled with the predetermined support member is seated in the cavity, a melt injecting step in which the melt is injected into the cavity to surround the pipe, a cooling and withdrawing step in which the injected melt is cooled and a molded product is withdrawn, an injecting step in which a working fluid is injected into the pipe through an injection end, and a finishing step in which, after the injecting step, the pipe is sealed.

A heat exchanger, including a heat exchanger tube for guiding a first medium in its interior, and also at least one connection for a second medium, wherein the region around the heat exchanger tube is provided by an open-pored, in particular solid, material, preferably a body of such a material, into which the second medium in particular can enter.

An extraplanetary habitat system includes a habitat located on a site including a layer of regolith material and one or more heat-generating systems located in the habitat. A heat exchanger is operably connected to the habitat. The heat exchanger is located beneath the layer of regolith material and is configured to conduct the heat from the habitat into the layer of regolith material. A method of cooling one or more heat generating components of an extraplanetary habitat includes directing a flow of fluid from the habitat to a heat exchanger located beneath a layer of regolith material, exchanging thermal energy between the flow of fluid and the regolith material, thereby cooling the volume of fluid, and directing the flow of fluid from the heat exchanger to the habitat, thus cooling the habitat.

A water block assembly comprising a water block unit and an insulating housing, and a method for insulating a water block unit are provided. The water block unit has an external thermal transfer surface configured to be in contact with a heat generating component to be cooled, and defines an internal fluid conduit for circulating fluid therein, a fluid inlet for feeding fluid into the internal fluid conduit, and a fluid outlet for discharging fluid from the internal fluid conduit. The insulating housing at least partly embeds the water block unit therein to limit heat transfer from the water block unit to a surrounding environment thereof, the insulating housing having an internal surface in contact with the water block unit.

A module for constructing therefrom a heat exchanger is provided. The module includes two manifolds and a plurality of parallelly arranged mats spanning between the manifolds. Each mat includes a plurality of heat exchange tubes arranged so as to define a plane, the heat exchange tubes being in fluid communication with the manifolds and spanning therebetween. Each of the manifolds includes selectively sealable end openings formed in facing ends thereof and defining a longitudinal flow path substantially perpendicular to the tubes and parallel with the planes defined thereby. Each of the manifolds further includes selectively sealable side openings on facing sides thereof and each defining a lateral flow path substantially perpendicular to the longitudinal flow path and to the planes defined by the tubes.

The present invention discloses a preparation method for a hollow radiator and a hollow radiator. The preparation method comprises the following steps: 1) providing a feed and an insert raw material; 2) molding the insert raw material into an insert; 3) placing the insert in a cavity of a mold, and filling the cavity with the feed by injection molding in such a manner that the insert is surrounded by the feed, thereby obtaining a green body with the insert; 4) performing debinding treatment on the green body with the insert to remove the insert, thereby obtaining the green body of a hollow structure; and 5) sintering the green body to obtain the hollow radiator. By the preparation method for a hollow radiator according to the present invention, a radiator of a complex hollow structure can be fabricated, and the heat dissipation effect of the radiator can be improved. Moreover, the airtightness and leakproofness of the radiator can be guaranteed for a long time.

A heat exchange apparatus, and method of forming the apparatus, are disclosed. The apparatus includes a thermally conductive substrate with a metal microlattice structure adhered to the thermally conductive substrate and in thermal communication with the thermally conductive substrate, the metal microlattice structure comprising a region containing an electroless metal. A method of making the apparatus includes forming a polymer lattice, applying the polymer lattice to a thermally conductive substrate, forming an electroless plated metal layer on the polymer lattice, forming an electroplated metal layer on the electroless metal layer, and forming a metal microlattice of the electroless metal layer and the electroplated metal layer.

The present invention relates to a method of manufacturing a cooling device using a heat pipe in which, using casting, the heat pipe is embedded inside a housing, and the method includes a filling step in which a predetermined support member is filled inside a pipe to prevent deformation of the pipe by a pressure of a melt being injected into a cavity of a mold that is closeable, a pipe seating step in which the pipe filled with the predetermined support member is seated in the cavity, a melt injecting step in which the melt is injected into the cavity to surround the pipe, a cooling and withdrawing step in which the injected melt is cooled and a molded product is withdrawn, an injecting step in which a working fluid is injected into the pipe through an injection end, and a finishing step in which, after the injecting step, the pipe is sealed.