A pin for a core layer of a heat exchanger, the pin extending from a first pin end to a second pin end and having an outer surface between the first and second pin ends, wherein the pin comprises a plurality of surface features protruding from the outer surface.

A method includes using electroforming to deposit a first portion of material. The method also includes placing a preformed tube on the first portion of material, where the preformed tube includes multiple capillary pathways and multiple bends. The method further includes using electroforming to deposit a second portion of material over the first portion of material and over the preformed tube to form a heat exchanger. The preformed tube forms at least a portion of a pulsating heat pipe within the heat exchanger, and the pulsating heat pipe is configured to transport thermal energy through the heat exchanger.

A thermal management system includes a plurality of thermal management assemblies. Each of the thermal management assemblies has a monolithic foil structure having a body with an external surface and a differently shaped and opposing internal surface. The external surface forms an outer profile and the internal surface forming an internal conduit with the outer profile and the internal conduit having different shapes. The monolithic foil structure is configured to physically isolate a first fluid flowing along the external surface from a second fluid flowing in the internal conduit. The body is configured to transfer thermal energy between the first fluid flowing along the external surface and the second fluid flowing in the internal conduit.

A heat exchanger includes a header and an annular core fluidly connected to the header. The annular core includes an inner diameter, an outer diameter, first flow channels arranged in a first set of layers, and second flow channels arranged in a second set of layers and interleaved with the first flow channels. Each of the first flow channels includes a first inlet, a first outlet, and a first axial region extending between the first inlet and the first outlet. Each of the second flow channels includes a second inlet, a second outlet, and a second axial region extending between the second inlet and the second outlet.

A heat exchange device includes a heat exchange main body portion, a joint member, and a resin sealing portion. The heat exchange main body portion has an internal flow path through which a heat exchange medium flows, and a metal wall portion including a through-hole communicating with the internal flow path. The joint member has a protruding portion and a hollow portion. The protruding portion includes an opening through which the heat exchange medium is supplied or discharged. The protruding portion protrudes toward an outside of the heat exchange main body portion through the through-hole. The hollow portion is formed for causing the opening and the internal flow path to communicate with each other. The resin sealing portion seals a gap between an inner peripheral surface of the through-hole and an outer peripheral surface of the protruding portion.

Heat transfer devices, components thereof, and related methods are provided. Embodiments include heat transfer devices and/or heat transfer components including a spinodal structure having a bi-continuous topology obtained by modeling a spinodal decomposition process, wherein the spinodal structure having the bi-continuous topology is a spinodal shell structure or a spinodal solid structure. Embodiments include methods of making heat transfer devices and/or heat transfer components using additive manufacturing. Other further embodiments are provided in the present disclosure.

A method includes: an inner pipe insertion step of inserting an inner pipe to between a cored bar and a metal movable claw; a designated section corrugated portion formation step of forming a corrugated portion in a first designated section by pressing the first designated section of the inner pipe radially inward by the metal movable claw and plastically deforming the first designated section; a movable claw moving step of moving the metal movable claw outward in the radial direction of the inner pipe; and an inner pipe moving step of moving a second designated section that is the next designated section to between the cored bar and the metal movable claw.

A ducted heat exchanger system for a gas turbine engine includes an additive manufactured heat exchanger core with a contoured external and/or internal geometry. A method of additively manufacturing a heat exchanger for a gas turbine engine includes additively manufacturing a core of a heat exchanger to set a ratio of local surface area to flow area to control a pressure drop per unit length along the core.

A multilayer heat exchanger device comprising: a stack of plates arranged to provide multiple fluid flow paths separated by the plates; wherein at least some of the plates are pin fin plates that each have an array of pins extending outwards from the pin fin plate into the fluid flow paths; and wherein each pin comprises an inner end integrally formed with the pin fin plate, a mid-point along a longitudinal axis of the pin, and an outer end to be bonded to an adjacent plate; wherein the cross sectional area of the pin at the outer end is larger than the cross sectional area at the mid-point.

A prosthetic socket cooling system and method includes a thermally conductive heat spreader including a curved shaped portion configured to maximize contact with a residual limb of a user. A heat extraction subsystem is coupled through a wall of the prosthetic socket and to the thermally conductive heat spreader and is configured to maintain a desired temperature inside the prosthetic socket.