A flat loop heat pipe includes an evaporator that vaporizes a working fluid, a condenser that liquefies the working fluid vaporized by the evaporator, a vapor pipe that connects the evaporator to the condenser, and a liquid pipe that connects the condenser to the evaporator. The liquid pipe includes a first wick. The condenser includes a flow passage and a second wick. The flow passage connects the vapor pipe and the liquid pipe. The second wick is connected to the first wick. The second wick is exposed in the flow passage and extends from the flow passage in a planar direction.

The vapor chamber includes a casing, a working fluid, a microchannel, and a wick. The casing includes an upper casing sheet and a lower casing sheet that face each other and are joined together at an outer edge so as to define an internal space therebetween. The working fluid is sealed in the internal space. The microchannel is in the lower casing sheet and in communication with the internal space so as to form a flow path for the working fluid. The wick is in the internal space of the casing and is in contact with the microchannel. A contact area between the wick and the microchannel is 5% to 40% with respect to an area of the internal space taken as a plane.

The vapor chamber includes a casing, a working fluid, a microchannel, and a wick. The casing includes an upper casing sheet and a lower casing sheet that face each other and are joined together at an outer edge so as to define an internal space therebetween. The working fluid is sealed in the internal space. The microchannel is in the lower casing sheet and in communication with the internal space so as to form a flow path for the working fluid. The wick is in the internal space of the casing, and is in contact with the microchannel. An area of the wick is larger than an area of a region corresponding to the microchannel in a plan view of the vapor chamber.

A heat pipe including a vapor line having a flow path through which a working fluid vapor flows, wherein the vapor line includes walls opposite to each other across the flow path, and a support post disposed in the flow path and spaced apart from the walls, wherein the walls are made of a plurality of metal layers stacked one over another, and the support post is made of a single seamless member having the same thickness as the walls.

The present subject matter includes a heat exchange part having heating medium channels, through which heating medium flows, and combustion gas channels, through which combustion gas burned in a burner flows, adjacently disposed in alternation in the spaces between the plurality of plates, the heat exchange part being provided in multiple numbers in a stacked structure, and having a heating medium distribution part for narrowing the channel at points where the flow direction of the heating medium is switched in adjacently located heating medium channels.

A scraped heat exchanger apparatus, including a vessel and a plurality of internally cooled plates disposed parallel to each other within the vessel. A rotating shaft is disposed at a central axis of the vessel. A rotating scraper arm, connected to the rotating shaft, moves between adjacent plates. The rotating scraper arm includes a scraper positioned to scrape solids from the outer surfaces of adjacent plates. A cooling fluid flows through an interior of each plate. The cooling fluid cools a gaseous process fluid flowing between adjacent plates. An opening in each of the plates permits the process fluid, and solids removed from the process fluid and scraped by the rotating scraper arm, to pass through the plates.

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.

A loop heat pipe includes: an evaporator; a condenser; a liquid pipe that connects the evaporator and the condenser; a vapor pipe that connects the evaporator and the condenser to form a loop flow path; and a porous body provided inside of a part of the evaporator, the condenser, the liquid pipe, and the vapor pipe. The evaporator, the condenser, the liquid pipe, and the vapor pipe have a first main surface. At least one recessed portion is formed in at least part of a first area, located directly above or below the flow path, of the first main surface, and is not formed in a second area, located directly above or directly below a pipe wall of the flow path, of the first main surface and is not formed in a third area, located directly above or below the porous body, of the first main surface.

Planar element adapted to form, when stacked with a plurality of other such elements, a heat exchanger, comprising an inlet region, a first zone adapted to direct flow from the inlet region towards a second zone, a second zone comprising at least one cutout in the plane of the planar element, adapted to accommodate a cooling core, a third zone, adapted to direct flow from the second zone towards an outlet region and an outlet region, the planar element comprising a first blockage protrusion disposed along a first group of said side edges, the first group comprising at least a side edge adjacent to said outlet region, and a second blockage protrusion disposed along a second group of said side edges, the second group comprising at least a side edge adjacent to said inlet region.

A heat exchanger is provided with a unitary, single-piece structure that can be formed via 3D printing, for example. The heat exchanger includes a main body a plurality of plates stacked and integrally formed with the body. First fluid channels are defined by gaps in the material of the main body, and second fluid channels are defined by gaps in the material of the main body and are stacked with the first fluid channels in alternating fashion, separated by the plates. Each of the first fluid channels define a first flow path, and each of the second fluid channels define a second flow path. A portion of the first flow paths overlap, and are oriented opposite to, a portion of the second flow paths. Another portion of the first flow paths overlap, and are oriented transverse to, another portion of the second flow paths.