A heat exchanger plate (1) is described comprising an edge (2), a groove (3) running along the edge (2), and a corrugated area (4) having tops (5) and valleys (6) between the groove (3) and the edge (2), wherein the tops (5) run substantially perpendicular to the edge (2) and the groove (3) comprises an external wall (7) adjacent to the corrugated area (4) and an internal wall (8). Using such a heat exchanger plate (1) it should be possible to produce a reliable plate-type heat exchanger of simple construction. To this end the external wall (7) is in form of a wavy shape.

A centrifugal fan including an impeller housing and an impeller. The impeller housing has an accommodation space, an air inlet and an air outlet. The air inlet and the air outlet are connected to the accommodation space. The impeller is located in the accommodation space. The impeller includes a hub, a plurality of blades, and at least one heat conductive annular portion. The hub is rotatably disposed in the impeller housing. The plurality of blades are connected to an outer circumferential surface of the hub. The at least one heat conductive annular portion is connected to the plurality of blades.

A plate heat exchanger comprises heat exchanger plates each comprising a heat exchanger area extending in parallel with an extension plane and comprising a corrugation extending from a primary level on one side of the extension plane to a secondary level on an opposite side of the extension plane. Four porthole areas enclose a respective porthole and comprise two first porthole areas comprising a respective annular base area around the porthole at the secondary level. Each first porthole area comprises a first annular ridge around the porthole and projecting from the annular base area to the primary level, and a second annular ridge around and at a distance from the first annular ridge and projecting from the annular base area to the primary level. The first and second annular ridges are through-broken by a number of depressions.

A heat exchanger assembly includes a cooling plate with at least one outer heat transfer surface adapted for thermal contact with one or more heat-generating substrates. A fluid flow path extends from an inlet port to an outlet port, with a plurality of cooling zones spaced apart along the fluid flow path, each cooling zone including a heat transfer element such as a corrugated fin sheet in contact with the inner surface of the first plate wall. Manifold spaces are defined proximate to the inlet and outlet ports, and between adjacent cooling zones. One or more bypass flow passages are provided between upstream and downstream ends of at least one cooling zone, to divert a portion of the heat transfer fluid from flowing through the cooling zone. The volume of fluid flow bypassing one or more cooling zones is calibrated to improve temperature uniformity of the heat-generating substrates.

The present disclosure provides a liquid-cooling type double-sided cooler, including a first cooling portion and a second cooling portion. In the liquid-cooling type double-sided cooler, another end of the first cooling portion is formed with a first communication hole that is configured to penetrate the first cooling liquid path and an outside of the first cooling portion, another end of the second cooling portion is formed with a second communication hole that is configured to penetrate the second cooling liquid path and an outside of the second cooling portion; and the first cooling portion and the second cooling portion are positioned such that the first communication hole and the second communication hole face each other, and the first cooling liquid path and the second cooling liquid path are connected with each other.

A heat exchanger unit having a top and a bottom, the heat exchanger comprising a plurality of fins spaced apart from each other and having a predetermined length, thickness and height, with application for use with a photovoltaic solar panel.

A heat exchanger (1) includes a heat exchanger (1) including a separate plate (10) and a first flow path (11) which is divided by a plurality of fin portions (13a) and through which air flows, a fan (2), and a control unit (3) that perform s control for switching between a first mode where heat exchange is performed by forcing air to flow in and a second mode where heat exchange is performed by natural convection, the plurality of fin portions (13a) are disposed in parallel at predetermined intervals (p1), and are formed to have an undulating shape from one end (11b) toward the other end (11c) of the first flow path (11) in a width direction of the first flow path (11), and the first flow path (11) is configured to be used in both the first mode and the second mode.

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.

The invention relates to a plate heat exchanger for a process engineering plant, comprising a heat exchanger block which has a plurality of alternatingly arranged heating surface elements and separating plates, wherein the separating plates are soldered to the heating surface elements with the aid of solder layers provided at the separating plates, and wherein, in at least a part of the separating plates, the solder layers comprise at least two soldered areas that differ in terms of the alloy composition thereof.

A method of manufacturing a heat exchanger is provided. The method includes forming a first substrate by additively manufacturing a body defining a first outer surface and a second outer surface opposite the first outer surface, a first partial fluid flow channel formed within the first outer surface, a second partial fluid flow channel formed within the second outer surface, and at least one internal fluid flow channel completely formed within the body, and coupling the first substrate to a second substrate including a partial fluid flow channel formed within a surface of the second substrate such that the first partial fluid flow channel of the first substrate and the partial fluid flow channel of the second substrate combine to form a combined fluid flow channel.