Abstract: A heat exchanger for a motor vehicle includes heat exchange bundle with a plurality of stacked tubes inside which a first heat-transfer fluid circulates, and an end flange arranged on each side of the stack of tubes which brazed to the heat exchange bundle. The end flanges include a flat body with a first surface that faces an aerodynamic element and a second surface, the brazing surface, opposite to the first surface and brazed to the heat exchange bundle. Attachment tabs receive the aerodynamic element and are arranged on the sides of the flat body, the attachment tabs projecting in the opposite direction to the heat exchange bundle. At least one extension of the flat body extends in the same general plane as the flat body and is arranged between a pair of attachment tabs on a same side of the flat body.

Abstract: A heat exchanger including a first heat absorbing section and a second heat releasing section, such that a plurality of heat exchange structures are arranged, preferably in parallel, in a plane of extension. The first heat absorbing section includes a first plurality of fluid guiding devices and the second heat releasing section comprises a second plurality of fluid guiding devices. Each heat exchange structure includes at least one fluid guiding devices of the first plurality and at least one fluid guiding devices of the second plurality thermally connected to each other, and preferably arranged in parallel. A clearance disposed between two adjacent heat exchange structures allows airflow between adjacent heat exchange structures and/or each heat exchange structure includes a heat sink to thermally couple the fluid guiding devices of the first plurality and the fluid guiding devices of the second plurality.

Abstract: A heat exchanger connected to a refrigerant pipe includes: heat transfer tubes; and a header that connects the refrigerant pipe and the heat transfer tubes, and that forms a refrigerant flow path between the refrigerant pipe and the heat transfer tubes. The header includes a first member that includes a first plate-shaped portion, and a second member that includes a second plate-shaped portion that is stacked on a heat transfer tubes side of the first plate-shaped portion. The first plate-shaped portion has a first opening that forms the refrigerant flow path. The second plate-shaped portion has a second opening that forms the refrigerant flow path. When viewed in a stacking direction of the first plate-shaped portion and the second plate-shaped portion, the second opening and the first opening overlap each other at a first region and at a second region that is different from the first region.

Abstract: A hygienic food product to food product heat exchanger (1). The heat exchanger (1) has an elongated and hollow housing (4), a metal tube plate (6) arranged at each of the opposite ends of the elongated housing (4) for defining a closed interior space (10) inside the elongated and hollow housing (4), a plurality of tightly spaced metal tubes (2) axially extending between the tube plates (2) with the ends of the tubes being received in correspondingly tightly spaced holes the tube plates (6) or with the lumen of the tubes being aligned with said correspondingly tightly spaced holes in the tube plates. The metal tubes (2) are sealingly secured to the metal tube plates (6) by a welding joint (20) on the inwardly facing side of the tube plates (6).

Abstract: A heat exchanger includes: tubes stacked in a stacking direction, through which fluid flows; and a tank having a core plate to which each of the tubes is connected. The tank has a first space and a second space separated from each other and arranged in the stacking direction to store fluid. The core plate has insertion holes arranged in the stacking direction, through which the tubes are respectively inserted. The core plate has a boundary portion opposing a boundary between the first space and the second space. The core plate has a rigid portion that overlaps at least one of the insertion holes at a position adjacent to the boundary portion so as to increase a rigidity of the core plate.

Abstract: The present invention discloses an openable and closeable condensing apparatus, which is particularly applied in a two-phase liquid immersion cooling system. When servers start to operate, a large amount of heat will be dissipated from servers. The coolant is vaporized into a rising coolant vapor by absorbing heat dissipated from servers. Upon contact with a condenser, the coolant vapor is condensed back into a cooling liquid that is returned to the coolant-containing tank. By the heat exchange cycle in which heat dissipated from serves is absorbed by the coolant, servers can be maintained at a normal working temperature. However, in the process of condensation, the rising coolant vapor tends to scatter in all directions resulting in a failure to condense all of the coolant vapor. Therefore, the uncondensed coolant vapor will cause the pressure in the system to gradually rise, which eventually leads to an ineffective cooling of servers.

Abstract: A water cooling device includes a first collector, a second collector and a plurality of tubes. The first collector includes a receiving chamber and a plurality of distribution chamber. The receiving chamber has an inlet for receiving a working fluid. Each of the distribution chambers includes a first wall portion and a second wall portion opposite to the first wall portion. The first wall portion has an opening communicating with the receiving chamber. The second wall portion has an outlet. Each of the tubes is connected to the outlet of one of the distribution chambers on one end, and is connected to the second collector on another end.

Abstract: An investment casting process for manufacturing a cast component is provided. The investment casting process includes forming a core, casting the cast component about the core such that a core positioning feature provides a location of an anticipated pilot hole in the cast component, removing the core from the cast component once the casting is completed, locating, forming and sizing a pilot hole to form a resized pilot hole that can receive a sealing plug and installing the sealing plug into the resized pilot hole.

Abstract: The invention relates to a header tank (5) for a mechanically assembled heat exchanger, notably for a motor vehicle, said exchanger (1) comprising a mechanically assembled heat-exchange core bundle (3) and comprising at least one row of tubes (31) with two end tubes (31) one at each end of said at least one row, the tubes (31) respectively comprising an end (311) intended to open into an interior volume of the header tank (5). According to the invention, the header tank (5) comprises at least one end stop (55) configured to be positioned facing an internal surface of the end (311) of an associated end tube (31) and to collaborate with said internal surface in such a way as to prevent said tube (31) from moving in the direction of the interior volume of the header tank (5).

Abstract: A heat exchanger is connected to a first pipe through which a refrigerant flows. The heat exchanger includes: heat transfer tubes; and a header connected to the heat transfer tubes. The header includes: a first plate-shaped portion connected to the first pipe; a second plate-shaped portion connected to the heat transfer tubes; a third plate-shaped portion disposed between the first plate-shaped portion and the second plate-shaped portion; and a fourth plate-shaped portion that is disposed between the third plate-shaped portion and the second plate-shaped portion and that has communication openings for the heat transfer tubes. The first plate-shaped portion, the third plate-shaped portion, the fourth plate-shaped portion, and the second plate-shaped portion are stacked and overlap in a stacking direction. The third plate-shaped portion has a refrigerant flow path formation opening including: a first region through which the refrigerant flows in a first direction perpendicular to the stacking direction.

Abstract: A heat exchanger comprising a primary side; a secondary side; at least one primary structure on the primary side defining at least one primary space on the primary side; and at least one secondary structure on the secondary side defining at least one secondary space on the secondary side; wherein one or more of the at least one primary structure and one or more of the at least one secondary structure delimit a coolant volume separated from the at least one primary space and separated from the at least one secondary space; wherein one or more of the at least one primary structure and/or one or more of the at least one secondary structure comprises a three dimensional lattice body.

Abstract: A heat exchange device includes a core and a housing. The core includes a first collecting part and a second collecting part, and a flat tube part is provided between the two. The flat tube part includes a first flat tube group and a second flat tube group. The first collecting part includes first and second collecting portions, and a separator is formed between the two. Each flat tube of the first flat tube group is communicated with the collecting cavity of the first collecting portion. The collecting cavity of the first collecting portion is communicated with the collecting cavity of the second collecting portion through the first flat tube group, the collecting cavity of the second collecting part, and the second flat tube group.

Abstract: A header (10) for a heat exchanger, in particular for a charge air cooler, comprising an opening plane (12) with plurality of openings (14) for attachment of tubes, a collar (13) encircling the perimeter of the opening plane (12) and protruding at least partially above the opening plane (12), wherein the header (10) further comprises guiding protrusions (11a, 11b) located along inner perimeter of the collar (13) adjacent to said openings (14) and configured to guide the tubes into the openings (14) upon insertion, wherein the openings (14) have substantially rectangular shape with longer sides (14a) and shorter sides (14b) and are arranged in series along their longer sides (14a), wherein a first group of guiding protrusions (11a) is located adjacent the longer sides (14a) of the openings (14), while a second group of guiding protrusions (11b) is located adjacent the shorter sides (14b) of the openings (14).

Abstract: A header box includes a first bottom plate and an unperforated cover plate. The first bottom plate includes a first surface and a second surface opposite to the first surface. The first bottom plate is of a one-piece configuration. The first surface is recessed inwardly to form a straight first hole extending along a length direction. The second surface is recessed inwardly to form at least two straight second holes extending along a width direction perpendicular to the length direction. The first hole is communicated with the at least two second holes. The cover plate is connected to the first surface to block an opening of the first hole on the first surface. A heat exchanger having the header box is also disclosed.

Abstract: In one instance, a multistage microchannel condenser is provided for use as an aspect of a heating, ventilating, and air conditioning (HVAC) system. The multistage microchannel condenser includes at least two pluralities of flat tubes having microchannels, each associated with a different refrigeration circuit, that are interspersed so that when only one refrigeration circuit is operational, the multistage microchannel condenser still does not have any substantial thermal dead spots. Manifolds are used on each end of the multistage microchannel condenser to fluidly couple members of the at least two pluralities of flat tubes such that the refrigerant in each refrigeration circuit remains separated while still using a majority of the area of the face of the multistage microchannel condenser. Other aspects are presented.

Abstract: A hybrid motor vehicle, having an internal combustion engine, an electric motor, an interior climate-control device, a catalytic converter assigned to the internal combustion engine with a catalytic heating device which is operable from a medium-voltage network at a first voltage, particularly 48 V, a high-voltage network to which the electric motor is connected, at a second voltage that is higher than the first voltage, a voltage converter for converting the second voltage into the first voltage, a heat exchange device for heating a temperature-control medium, which is circulating in a temperature-control circuit, of the interior climate-control device by waste heat from the internal combustion engine, and a control device for operating the catalytic heating device as a function of the operation of the internal combustion engine.

Abstract: A sealing method for sealing an opening of a metallic molded body with a resin molded body, the metallic molded body having a cavity therein and an opening connected to the cavity, includes a step of irradiating laser light onto a joining surface on a periphery of the opening of the metallic molded body in an energy density of 1 MW/cm2 or more and at an irradiation rate of 2000 mm/sec or more to roughen the surface, and a step of placing, in a mold, a portion including the joining surface of the metallic molded body roughened in the preceding step and sealing the opening with a resin molded body formed by injection molding or compression molding of a resin.

Abstract: Embodiments relate to including information in a data packet transmitted by a transmitting integrated circuit (e.g., SOC) to account for a time delay associated with an unsuccessful arbitration attempt to send the data packet over a multi-drop bus. The unsuccessful arbitration attempt by the integrated circuit may delay the transmission of the data packet until the multi-drop bus becomes available for the integrated circuit to send the data packet. The data packet includes a data field to include time delay information caused by the unsuccessful arbitration attempt. A receiving integrated circuit may determine the time that the data packet would have been sent out from the transmitting integrated circuit absent the unsuccessful arbitration attempt based on the delay information. Embodiments also relate to a synchronization generator circuit in an integrated circuit that generates timing signals indicating times at which periodic events occur at another integrated circuit.

Abstract: An HVAC system is provided. Embodiments of the present disclosure generally relate to heat exchangers having tubing with a reduced diameter compared to traditional systems. In one embodiment, a ducted HVAC system comprises an outdoor heat exchanger with tubing that has an outer diameter of eight millimeters (8 mm) or less and an indoor heat exchanger with tubing that has an outer diameter of nine millimeters (9 mm) or less. Additional systems, devices, and methods are also disclosed.

Abstract: A heat exchanger includes: a gas-refrigerant pipe; a header connected to the gas-refrigerant pipe; and heat transfer tubes connected to the header. The header includes: a first plate member; and a second plate member that is stacked on the first plate member in a plate-thickness direction. The first plate member includes a first opening that constitutes an internal space of the header. The second plate member includes a second opening that, together with the first opening, constitutes the internal space of the header. The internal space of the header communicates with the heat transfer tubes. A first direction is perpendicular to both the plate-thickness direction and a direction in which the heat transfer tubes are arranged. A width of a part of the first opening in the first direction is different from a width of the second opening in the first direction.

Abstract: A microtube heat exchanger is disclosed, including two end plates with an array of holes or openings and an array of microtubes disposed in the array of openings between the two end plates. The heat exchanger can be used in environmental control systems, including systems for aerospace applications.

Abstract: The present disclosure provides a heat exchanger flat tube and a heat exchanger with the heat exchanger flat tube, the heat exchanger flat tube includes two plates opposite to each other, a fluid passage is formed between the two plates, a turbulence structure is provided in the fluid passage and has a gradually expanding portion and a gradually narrowing portion, both an extension direction of the gradually expanding portion and an extension direction of the gradually narrowing portion are consistent with a flow direction of a fluid, and the gradually narrowing portion is located downstream of the gradually expanding portion along the flow direction of the fluid.

Abstract: A tube for use in a heat exchanger includes an upper portion, a base portion spaced from the upper portion, and a partitioning wall depending from the upper portion. The partitioning wall is bent away and spaced from the base portion in a first section of the tube to form a single flow channel within the tube along the first section. The partitioning wall contacts the base portion in a second section of the tube to form a partition separating a first flow channel from a second flow channel along the second section. The first section of the tube is configured for reception into an opening of a header tank of the heat exchanger.

Abstract: A system for generating and applying a secure token in a resource distribution network is provided. For example, a headend system generates a time-based token based on a time duration specified for a meter. The time-based token indicates the time duration for the meter. The time-based token is further generated based on an identifier of the meter. The headend system transmits the time-based token to the meter via at least a mesh network. After receiving the time-based token, the meter validates the time-based token to determine that the time-based token is generated for the meter based on information related to the identifier of the meter. If the meter determines that the time-based token is valid, the meter connects premises associated with the meter to a resource distribution network for at least the time duration specified in the time-based token.

Abstract: An outdoor heat exchanger includes: a main heat exchange area; a sub heat exchange area; and a connecting pipe and a connecting pipe interconnecting the main heat exchange area and the sub heat exchange area. The main heat exchange area has a main heat exchange channel and a main heat exchange channel. The sub heat exchange area has a sub heat exchange channel, a sub heat exchange channel, and a sub heat exchange channel. The connecting pipe connects the sub heat exchange channel and the sub heat exchange channel to the main heat exchange channel while the sub heat exchange channels are joined together. The connecting pipe interconnects the sub heat exchange channel and the main heat exchange channel.

Abstract: An exhaust gas recirculation heat exchanger assembly that includes a tube, a fin structure, and a clip. The tube has first and second walls extending between a first lateral end and a second lateral end. The fin structure is received in the tube to form a cooling tube assembly. The cooling tube assembly defines a first channel between the first lateral end and a first fin of the fin structure, a second channel between the second lateral end and a second fin of the fin structure disposed opposite the first fin, and a plurality of intermediate channels extending between the first and second channels. The clip is coupled to the cooling tube assembly. The clip has at least one flow impeding portion being configured to impede a fluid flow through at least one of the first channel, the second channel, and one or more of the intermediate channels.

Abstract: An additively-manufactured heat exchanger header defines a build plane and a vertical axis defining a build direction that is orthogonal to the build plane. The additively-manufactured heat exchanger header includes a header body that at least partially contains a working fluid, and an upper support structure on the header body. The upper support structure defines an interior edge and includes a branchwork of gussets rising upward and outward from a root point located in the middle region on the header body. The header body defines a middle region, an upper region, and a top extension. The branchwork of gussets forms a number of top vanes, each supporting the top extension. The upper region is oriented over the middle region relative to the vertical axis, and the top extension partially defines the fluid boundary and is oriented over the upper region.

Abstract: Embodiments of the present disclosure include an air handling module. The air handling module may comprise an exchanger within a housing, a first manifold positioned on a first side of the housing and including a first pair of ports on a first end and a second pair of ports on a second end, and a second manifold positioned on a second side of the housing and including a first pair of ports on a first end and a second pair of ports on a second end. The first pairs of ports may be in fluid communication to transfer air through the exchanger and between the first and second manifolds, and the second pairs of ports may be in fluid communication to transfer air through the exchanger and between the first and second manifolds.

Abstract: Each of tanks of a heat exchanger includes a tube joint portion and a tank body portion which define an internal space of the tank. The tube joint portions of the tanks constitute a single core plate. The tank body portions each have a claw protruding toward a core portion. The core plate is provided with a hole that fits with the claw. In a state in which the claw is fitted into the hole, the tank body portions are fixed to the core plate.

Abstract: Disclosed is a heat exchanger to reduce height and manufacturing cost. A heat exchanger includes a first heat exchanger provided in the form of a plate; and a second heat exchanger provided in the form of a plate and arranged to be inclined to the first heat exchanger, wherein a corner of at least one of an end of the first heat exchanger and an end of the second heat exchanger is positioned to face a plane of the other of the end of the first heat exchanger and the end of the second heat exchanger.

Abstract: A collector tube for a heat exchanger having at least one flat tube, may include a base and a cover arranged opposite the base. The base and the cover may define a longitudinal duct. The base may include at least one passage having an opening configured to accommodate the at least one flat tube of the heat exchanger. The opening may have at least one wide edge and at least one narrow edge. The longitudinal duct may have, in a cross section, a diameter that is smaller than the at least one wide edge of the opening. The at least one passage may include a collar extending away from the longitudinal duct.

Abstract: The invention relates to a heat exchanger collector box (3) including: a collector plate (11) having holes respectively lined by collars (19) for passage of ends of heat exchange tubes (7), a sealing means (13), and a cover closing the collector box (3). According to the invention, the sealing means (13) includes at least one support face (29) and is arranged on the collector plate (11) such that: the support face (29) is arranged abutting and under tension against one of the collars (19) when the sealing means (13) is assembled with the collector plate (11), and in the compressed state, the sealing means (13) is kept away from the ends of the heat exchange tubes (7) by interposing collars (19) between the sealing means (13) and the ends of said tubes (7).

Abstract: A machine system includes a compressor, and a cooler having an inlet tank to receive compressed air from the compressor, and a header assembly attached to the inlet tank and including a plurality of cooling tubes supported in the header and each having an external heat exchange surface exposed to a flow of cooling air. The cooler further includes a plurality of graphite pack seals each extending peripherally around one of the cooling tubes, and a clamping assembly clamping the pack seals against the header to squeeze the pack seals into sealing contact with the cooling tubes and the header.

Abstract: The heat exchanger has tubes and a header tank that is located at an end of the tubes in a longitudinal direction and communicates with the tubes. The header tank has a core plate that connects to the tubes and a tank body that is fixed to the core plate. The core plate has a tube connection surface, a sealing surface, and an inclined surface that connects the tube connection surface and the sealing surface with each other. A distance between the tube connection surface and an end surface of the tubes in the longitudinal direction is different from a distance between the sealing surface and the end surface in the longitudinal direction by disposing the inclined surface to incline with respect to the longitudinal direction. The tubes connect to the tube connection surface and the inclined surface in a condition of being inserted to the tube connection surface and the inclined surface.

Abstract: A tube stiffener for insertion into a plurality of radiator tubes includes a plurality of inserts and first and second connection strips. Each insert is configured to extend into at least one of the plurality of radiator tubes to strengthen the plurality of radiator tubes. The plurality of inserts include a first end and a second end and a tab projecting from each of the first end and the second end. The first connection strip is fixed to the tab on the first end and the second connection strip is fixed to the tab on the second end. Each of the connection strips connects the plurality of inserts to each other.

Abstract: A first connection portion is located on one side of a predetermined flow path member in a plane direction. The predetermined flow path member and another flow path member are bonded by brazing at the first connection portion. A second connection portion is located on the other side of the predetermined flow path member. The predetermined flow path member and another flow path member are bonded by brazing at the second connection portion. A brazing material layer extends over the predetermined flow path member, the first connection portion, and the second connection portion. A hilling portion is a portion of the predetermined flow path member. The hilling portion is curved to protrude toward a side on which the brazing material layer is provided. The hilling portion extends along a direction in which the first connection portion or the second connection portion extends.

Abstract: A heating, ventilation, and/or air conditioning (HVAC) packaged unit includes a first refrigerant circuit component configured to change a temperature or a pressure of a refrigerant flowing through the first refrigerant circuit component and a second refrigerant circuit component configured to change a temperature or a pressure of the refrigerant flowing through the second refrigerant circuit component. The first and the second refrigerant circuit components are within a common refrigerant circuit that is disposed within a common support structure. The HVAC packaged unit also includes an interconnection conduit having a length formed from aluminum, a first end segment coupled to a first end of the length, and a second end segment coupled to a second end of the length. The first end segment and the second end segment are each formed from copper, and the interconnection conduit extends between the first refrigerant circuit component and the second refrigerant circuit component.

Abstract: A collector plate for a motor vehicle heat exchanger may include a first receiving zone for tubes of a first tube bundle of a heat exchanger. The collector plate may include a second receiving zone for tubes of a second tube bundle of a heat exchanger and a groove extending between the first and second receiving zones. The collector plate may be thinner in a region of the groove. Further, the collector plate may have a channel reducing the thickness of the collector plate from a first face of the collector plate and opposing a second face of the collector plate including the groove.

Abstract: A heat exchanger includes tubes and a header tank. The header tank includes a core plate and a tank body. The core plate includes a tube connection surface and a receiving portion that houses an end portion of the tank body. The receiving portion includes a bottom wall and an inner wall that connects the bottom wall to the tube connection surface. The tube connection surface and the inner wall are connected to a rib. The rib is located between adjacent two tubes and inclined with respect to a longitudinal direction of the tubes. The rib includes one end connected to the tube connection surface and an other end connected to the inner wall. The tubes includes lateral ends in the width direction, and a clearance, which has a specified dimension, is defined between the inner wall and the lateral ends in the width direction.

Abstract: A heat exchanger includes a plurality of first and second fluid passages. The first fluid passages are defined by a pair of opposing first fluid passage walls and a plurality of first fluid diverters disposed between the first fluid passages walls. The second fluid passages are defined by a pair of opposing second fluid passage walls and a plurality of second fluid diverters disposed between the second fluid passage walls. The second fluid diverters include a body portion and a leading edge portion. The first fluid passage walls form a first fluid leading edge that extends upstream of the leading edge portion of the second fluid diverters. The second fluid passages extend in a direction perpendicular to the direction of the first fluid passages.

Abstract: A foil stock comprising at least one AlFeSi-based layer. The foil stock according to the invention comprises an AlMg-based core layer and an AlFeSi-based cladding layer of not more than 0.05% by weight, in particular of not more than 0.03% by weight magnesium (Mg), thereby ensuring high strength and good deformation and coating properties of a carrier foil produced from said foil stock.

Abstract: A falling film evaporator (12) includes an evaporator vessel (26), a plurality of evaporator tubes (38) disposed in the in evaporator vessel (26) through which a volume of thermal energy transfer medium is flowed and a suction port (42) extending through the evaporator vessel (26) to remove vapor refrigerant from the evaporator vessel (26). A refrigerant distribution system (34) is located in the evaporator vessel (26) to distribute a flow of liquid refrigerant over the plurality of evaporator tubes (38). The refrigerant distribution system (34) is configured such that the refrigerant distribution system (34) has a first height at the suction port (42) and a second height greater than the first height at a longitudinal location (28) other than at the suction port (42).

Abstract: A heat exchanger assembly includes a plate including a plate portion having a leading edge, a trailing edge, an inlet side and an outlet side. The leading edge of the plate portion includes a terminal tip and a varying radius that decreases in a direction toward the terminal tip. An inlet manifold is on the inlet side. An outlet manifold is on the outlet side. A cast plate for a plate fin heat exchanger is also disclosed.

Abstract: A tube for use in a heat exchanger comprises a first portion spaced apart from a second portion. At least one reinforcing structure having a non-circular cross-sectional shape extends between the first portion and the second portion to divide a flow of a fluid through the tube into a first flow channel to one side of the at least one reinforcing structure and a second flow channel to a second side of the at least one reinforcing structure. A fluid communication channel provides fluid communication between the first flow channel and the second flow channel. The fluid communication channel is at least one of a) formed through the at least one reinforcing structure and b) formed between two adjacent ones of the reinforcing structures.

Abstract: A heat exchanger having a core. A header is on a side of the core, and a tank is brazed to the header. A connector is brazed to an outer surface of the tank. A welding aperture is defined by the tank beneath the connector. A weld at the welding aperture secures the connector to the tank prior to brazing of the connector and the tank together.

Abstract: A method of assembling a heat exchanger includes the steps of fluidly connecting a plurality of first heat exchanger tubes to a first connecting tube portion at an assembly location to form a first subassembly, fluidly connecting a plurality of second heat exchanger tubes to a second connecting tube portion at the assembly location to form a second subassembly, transporting the first subassembly and the second subassembly from the assembly location to an installation location, and connecting the first subassembly to the second subassembly at a single connection point between the first connecting tube portion and the second tube connecting portion.

Abstract: A UE (100) receives a handover command from a source cell to perform a handover to a target cell in response to the handover command. The handover command includes a notification indicating omitting a random access procedure during the handover. The UE (100) omits, in response to the notification, the random access procedure during the handover.

Abstract: A heat exchange device may be based on a pulsating heat pipe and a cooling arrangement. The heat exchange device may include a plurality of pipes to provide fluid paths between a first fluid distribution element and a second fluid distribution element. Each pipe of the plurality of pipes may include a group of channels. Each of the first and second fluid distribution elements may include a plate of a first type. Each plate of the first type may include openings for providing alignment functionality for the plurality of pipes. The first fluid distribution element may include a plate of a second type that may include openings for providing fluid paths between the pipes. The plate of the second type may be positioned on a side of the plate of the first type of plates of the first fluid distribution element that is opposite to the second fluid distribution element.

Abstract: A heat exchanging apparatus includes one inflow channel having an inflow port via which a liquid refrigerant flows in, one outflow channel having an outflow port via which the liquid refrigerant flowing through the outflow channel flows out, and a plurality of channels arranged in a flow direction of the liquid refrigerant flowing through the inflow channel, the plurality of channels connecting the inflow channel the outflow channel and causing the liquid refrigerant flowing from the inflow channel to flow into the outflow channel. The plurality channels are connected to the inflow channel over a portion from the inflow port to a terminal end of the inflow channel. The inflow channel includes a buffer section disposed between the inflow port and the terminal end, the buffer section configured no reduce a flow rate of the liquid refrigerant flowing through the inflow channel.

Abstract: A heat exchanger includes a main heat exchange unit including a plurality of first heat transfer pipes arranged side by side, a sub-heat exchange unit including a plurality of second heat transfer pipes arranged side by side, and a relay unit including a plurality of relay passages connecting the plurality of first heat transfer pipes and the plurality of second heat transfer pipes. Each of the plurality of relay passages has one inlet connected to a corresponding one of the plurality of second heat transfer pipes, and a plurality of outlets each connected to a corresponding one of the plurality of first heat transfer pipes. Each of the plurality of relay passages distributes refrigerant flowing from the one inlet, without merging streams of the refrigerant together, and causes the refrigerant to flow out of the plurality of outlets.