A layer for a heat exchanger includes: an inlet; an outlet; an upper sheet; a lower sheet; a fluid flowpath defined between the upper sheet and lower sheet and from the inlet to the outlet; and at least one pin disposed in the flowpath and connecting the upper sheet to the lower sheet; wherein the lower sheet has a first undulating profile. The upper sheet has a second undulating profile different from the first undulating profile. Also disclosed is a heat exchanger including the layer, and a method of making a layer for a heat exchanger.

A layer for a heat exchanger includes: an inlet; an outlet; an upper sheet; a lower sheet; a fluid flowpath defined between the upper sheet and lower sheet and from the inlet to the outlet; and at least one pin disposed in the flowpath and connecting the upper sheet to the lower sheet; wherein the lower sheet has a first undulating profile. The upper sheet has a second undulating profile different from the first undulating profile. Also disclosed is a heat exchanger including the layer, and a method of making a layer for a heat exchanger.

A thermal diffusion unit is fluidly connected to a combustion engine via a flue line. The thermal diffusion unit has a plurality of plates assembled in a parallel configuration, including a pair of heating plates having a heating fluid gap extending therebetween and a pair of cooling plates having a cooling fluid gap extending therebetween. A diffusion sheet is positioned between the pair of heating plates and the pair of cooling plates, such that the diffusion sheet interfaces on a first side with one of the heating plates and interfaces on an opposite side with one of the cooling plates. The diffusion sheet includes a plurality of interconnected thermal diffusion cells arranged in a repeating pattern, at least one heated passage fluidly connecting adjacent thermal diffusion cells, and at least one cooled passage fluidly connecting adjacent thermal diffusion cells.

In a heat exchanger of the present invention, a release port for, in a case where a fluid flows into an internal space, releasing the fluid to an exterior is provided in a protection unit main body of each of protection units arranged on both outer sides of a heat exchange unit, and a protection unit fin plate of the protection unit has such strength that a coupling state between an outer surface of an outermost-layer partition plate and a bonding plate of the protection unit main body facing the outer surface is maintained even in a case where an inner pressure set as a design pressure for a part of the heat exchange unit constituting an outermost-layer flow passage adjacent to the protection unit is applied to the internal space of the protection unit main body of the protection unit.

In a heat exchanger of the present invention, a release port for, in a case where a fluid flows into an internal space, releasing the fluid to an exterior is provided in a protection unit main body of each of protection units arranged on both outer sides of a heat exchange unit, and a protection unit fin plate of the protection unit has such strength that a coupling state between an outer surface of an outermost-layer partition plate and a bonding plate of the protection unit main body facing the outer surface is maintained even in a case where an inner pressure set as a design pressure for a part of the heat exchange unit constituting an outermost-layer flow passage adjacent to the protection unit is applied to the internal space of the protection unit main body of the protection unit.

A temperature control body housing includes a monolithic housing middle portion penetrated by one or more than one fluid canal, each fluid canal being completely bounded on four sides by respective walls monolithically connected to outer walls of the housing middle portion; a first housing end cap and a second housing end cap between which the housing middle portion is disposed; wherein the first housing end cap has a first fluid port and either the first housing end cap or the second housing end cap has a second fluid port, and wherein the first fluid port and the second fluid port are fluidly connected to each other by means of the one or more fluid channels.

A heat exchanger includes a plurality of fins arranged as a network and delimiting corridors, and an envelope having an internal wall and an external wall, the internal and external walls delimiting between them a channel for a flow of a first fluid in a main direction, the network of fins being arranged in the channel and connected to the internal and external walls, at least one passage for a flow of a second fluid being embedded in at least one of the internal and external walls, the channel being, in the main direction, divergent and then convergent.

A three-dimensional heat transfer device includes a first thermally conductive casing, a second thermally conductive casing, a first capillary structure, a second capillary structure and a heat pipe. The second thermally conductive casing has a through hole. The second thermally conductive casing is mounted on the first thermally conductive casing so as to form a liquid-tight chamber. The first capillary structure is disposed on the first thermally conductive casing. The second capillary structure is disposed on the first thermally conductive casing. Projections of the first capillary structure and the second capillary structure on the outer surface and an extension surface of the outer surface are located in an extent of the outer surface, and the second capillary structure is located closer to the second thermally conductive casing than the second capillary structure. The heat pipe is disposed through the through hole and in contact with the second capillary structure.

A three-dimensional heat transfer device includes a first thermally conductive casing, a second thermally conductive casing, a first capillary structure, a second capillary structure and a heat pipe. The second thermally conductive casing has a through hole. The second thermally conductive casing is mounted on the first thermally conductive casing so as to form a liquid-tight chamber. The first capillary structure is disposed on the first thermally conductive casing. The second capillary structure is disposed on the first thermally conductive casing. Projections of the first capillary structure and the second capillary structure on the outer surface and an extension surface of the outer surface are located in an extent of the outer surface, and the second capillary structure is located closer to the second thermally conductive casing than the second capillary structure. The heat pipe is disposed through the through hole and in contact with the second capillary structure.

A heat sink includes a base plate; a cover overlapping the base plate; fins, each having a plate-like shape projecting from the base plate in a direction perpendicular to the base plate, located between the base plate and the cover; one or a plurality of first fin groups composed of a plurality of the fins arranged with a gap therebetween in a first direction; and one or a plurality of second fin groups composed of a plurality of the fins arranged with a gap therebetween in the first direction, and adjacent to the first fin group with a gap therebetween in a second direction. Positions in the first direction of the fins belonging to the second fin group are displaced with respect to positions in the first direction of the fins belonging to the first fin group. Each of the fines has an S-shape.