Abstract: A heat exchanger 1 includes at least a plurality of tubes 2 and an upper tank 4 communicating with an upper end portion of a tube group formed by the tubes 2 so as to distribute coolant along the up/down direction. The coolant flows in through an inflow port 9 located at the upper tank 4 in the heat exchanger 1. An open-top coolant intake guide passage 25 is disposed at the inflow port 9 and the coolant intake guide passage 25 is thus inserted at the upper tank 4. With this configuration, coolant flowing at a very low flow rate has improved distribution, and uniformity in the output air temperature is achieved, while ensuring that the structure does not create excessive resistance against the coolant flow at a high flow rate.

Abstract: The present invention relates to a heat exchanger, in which inlet and outlet side heat exchange parts are communicated with each other and have the same refrigerant flowing direction by communicating pairs of cups with each other which are located at a predetermined area of the center of the heat exchanger, thereby being easily reduced in size, providing uniform surface temperature distribution and improving heat exchange efficiency by reducing the preponderance and the pressure drop rate of refrigerant and inlet and outlet pipes being easily arranged forward.

Abstract: A bed of particulate material 6 is supported by an air distribution bottom 5. Under the distribution bottom 5 exist one or more compartments 7, which each being supplied with cooling air from a fan installation 8. The distribution bottom 5 is sectionalised in a number of smaller areas 9. Each smaller distribution area 9 is connected to the compartment 7 by ducts 10, 11 and 12. The one duct 10 does have a fixed orifice area. The ducts 11 and 12 do have floaters 13A/13B end stop 14A/14B and bottom support 15A/15B. It is hereby obtained that the total pressure loss across the air distribution bottom can be reduced, and so that the flow of the treatment air through the material bed is distributed in a desirable manner across the entire air distribution bottom regardless of the composition of the material bed and the distribution thereon, and optimal heat exchange efficiency is obtained.

Abstract: A stacking-type, multi-flow, heat exchanger includes a plurality of heat transfer tubes and fins stacked alternately, a tank formed at an end of the heat transfer tubes, and an end plate provided at an end of the tank. The heat exchanger has a projecting portion provided to a surface of an outermost tube plate, a raised portion with an opening formed through the projecting portion, and an engaging portion and a closing portion provided integrally to the end plate for engaging the raised portion and for closing an opening of the raised portion. A positional shift of the end plate at the time of temporary assembling may be prevented, and the brazing properties and the pressure resistance of the tank end portion may be increased.

Abstract: An evaporator 1 includes a refrigerant inlet header section 5 and a refrigerant outlet header section 6 which are arranged in the front-rear direction, a refrigerant circulation passage for establishing fluid communication between the header sections 5 and 6. First ends of the header sections 5 and 6 are closed with a first cap 19 and the second ends thereof are closed with a second cap 18. A refrigerant inlet 37 and a refrigerant outlet are formed in the first cap 19. A pipe joint member 21, having a refrigerant inflow port 45 communicating with the refrigerant inlet 37 and a refrigerant outflow port 46 communicating with the refrigerant outlet 38, is joined to the first cap 19. Mating concave portions 19a and 19b are formed on the first cap 19. Mating convex portions 21a and 21b which project toward the first cap 19 and which are to be fitted into the mating concave portions 19a and 19b, respectively, are formed on the pipe joint member 21.

Abstract: There is described a heat exchanger (1) comprised of at least one exchanger module (13), comprising a combustion chamber (10) for the generation of an exchange fluid, a slotted wall (11) for the passage of the exchange fluid and an expulsion chamber (12) for the exchange fluid provided with a discharge flue (33). Said exchanger module (13) is formed by a pair of basic elements (14), each of which contributes to form a part of said combustion chamber (10), a part of said slotted wall (11) and a part of said expulsion chamber (12). The basic elements (14) are reciprocally connected in facing position so as to form a single block. The present invention allows to facilitate the assembly operations for a heat exchanger, to obtain modular exchangers and to reduce the structural elements of the exchangers.

Abstract: A heat exchanger is provided with a header tank having therein a circulation portion in which fluid flows, and multiple tubes which are stacked in a longitudinal direction of the header tank. The circulation portion is communicated with interiors of the tubes, and partitioned into an inlet side passage and other passages. An inflow port member is arranged at a longitudinal-direction end of the inlet side passage, and provided with multiple openings for causing at least a mainstream flow and a substream flow of fluid introduced toward the tubes. The mainstream flow is substantially evenly flow-divided by the substream flow.

Abstract: A heat exchanger assembly includes a first and second manifold. Each of the manifolds includes a tubular wall and a pair of manifold ends spaced from each other defining a flow path. A plurality of flow tubes extend between the manifolds and are in fluid communication with the flow paths. An insert is slidably disposed in the flow path of the first manifold. The insert divides the flow path into a plurality of chambers. The chambers and the flow tubes cooperate to establish a plurality of flow passes. The flow passes are for directing a heat exchange fluid through the heat exchanger assembly. The chambers are useful for orienting and connecting plumbing connections at various locations along the manifolds.

Abstract: To provide an EGR cooler which has a small number of parts and achieves compact design with low cost. A plurality of flat tubes, each having a bottom to close an end thereof, is arranged in parallel. An opening of each of the flat tubes penetrates through a tube plate. Corrugated fins are placed in each of the flat tubes, thus forming a core. A casing encloses the outer circumferential surface of the core. The tube plate closes the opening of a tank body equipped with a partition. The edge of the partition is placed at an intermediate position in the width direction of the opening of the flat tube.

Abstract: A heat exchanger used as an evaporator includes a refrigerant inlet header section having a refrigerant inlet at a right end portion, and a plurality of heat exchange tubes connected to the refrigerant inlet header section. The interior of the refrigerant inlet header section is divided by a partition plate into an upper space into which refrigerant flows via the refrigerant inlet and a lower space into which the heat exchange tubes project. A communication opening is formed in the partition plate on the left side of a heat exchange tube at the left end so as to establish communication between the upper and lower spaces. A guide portion is formed at a left edge portion of the communication opening such that the guide portion projects from a lower surface of the partition member into the lower space so as to guide the refrigerant toward the right end side.

Abstract: A heat exchanger comprises outer fins; a plurality of tubes arranged alternately with the outer fins; and header tanks receiving open ends of the tubes for communication with the tubes. The header tanks each comprise a first member and a second member which are combined to each other. The first member has tube insertion slots into which the open ends of the tubes are inserted, the second member does not have the tube insertion slots. The first member is either a core material having no brazing material layers on outer and inner peripheral surfaces thereof, or a core material having a brazing material layer on an outer peripheral surface thereof but having no brazing material layer on an inner peripheral surface thereof. The second member is brazed to the outer or inner peripheral surface of the first member having no brazing material layer thereon.

Abstract: In a heat exchanger, a core has a first core portion including first tubes and a second core portion including second tubes. The first tubes defines first passages through which an internal fluid flows and the second tubes defines second passages through which the internal fluid passed through the first passages flows. A flow direction of the internal fluid passed through a first section of the first core portion and a flow direction of the refrigerant passed through a second section of the first core portion are changed with respect to a direction that the tubes are layered, before flowing in the second core portion. Thus, the internal fluid passed through the first section of the first core portion flows into a second section of the second core portion and the internal fluid passed through the second section of the first core portion flows into a first section of the second core portion.

Abstract: A device cooling system comprises a heat pipe disposed in a device, the heat pipe having a condenser portion and at least two divergent evaporator portions, the at least two evaporator portions coupled to at least one heat-generating component of the device.

Abstract: A heat transfer device includes a receptacle having a number of partitions disposed for forming a number of fluid flowing passages within the receptacle, an inlet and a path formed in one side and communicating with the inlet and the fluid flowing passages of the receptacle, and a distributor having a tubular member engaged into the inlet and the path of the receptacle and having a number of orifices formed along the tubular member and aligned with the fluid flowing passages of the receptacle for guiding the fluid to evenly flow through the fluid flowing passages of the receptacle respectively. The distributor may include a manifold attached to the tubular member for bypassing the fluid.

Abstract: An evaporator includes a plurality of heat exchange tubes extending vertically and arranged in rows spaced apart from each other in a front-rear direction. A drainage acceleration member extending vertically is disposed between the adjacent front and rear heat exchange tubes. A gap is present between each of the adjacent front and rear heat exchange tubes, and the drainage acceleration member disposed between the front and rear heat exchange tubes. The gaps serve as drain channels. The evaporator exhibits excellent drainage of condensed water.

Abstract: An core unit for a heat exchanger being bent about an axis perpendicular to the core unit's headers. Tubes establish fluid communication between the core unit's headers, and a bend relief spacer is disposed between first and second groups of tubes. During the bending process, the bend relief spacer facilitates the bend and ultimately maintains the performance of the core unit.

Abstract: The present invention relates to a plate for a heat exchanger, which has beads of refrigerant distributing sections formed asymmetrically and streamlined beads arranged in the same number on flow channels in the form of a zigzag so that refrigerant flowing inside a tank is distributed and introduced to tubes uniformly, thereby increasing a heat radiation amount and enhancing a heat exchange efficiency by forming uniform flow distribution and reducing a pressure drop of refrigerant, and miniaturizing the heat exchanger into a compact size.

Abstract: The invention relates to a heat exchanger and a rib (1), in particular a corrugated rib (1), especially for a flat tube heat exchanger, in particular a coolant or charge-air cooler for motor vehicles. The corrugated rib (1) is arranged between flat tubes (3) of the heat exchanger, is connected thereto in a material fit, comprises gills (6, 8), can be exposed to a flow of air and comprises moulded reinforement means.

Abstract: An evaporator includes a first heat exchanger and a second heat exchanger. The first heat exchanger includes a first path in which coolant flows downwardly, a second path in which the coolant from the first path flows upwardly, and a third path in which the coolant from the second path flows downwardly. The second heat exchanger includes at least two paths including a first path in which the coolant from the first heat exchanger flows upwardly. The number of tubes in the first path of the first heat exchanger is smaller than that in any one of the other paths of the exchangers. The number of tubes in the second path of the first heat exchanger is equal to or greater than that in the third path of the first heat exchanger. The number of tubes in the first path of the second heat exchanger is smaller than that in the third path of the first heat exchanger.

Abstract: Heat exchanger assemblies, and in particular, heat exchanger assemblies for automotive vehicle applications are disclosed. The heat exchangers have manifolds with retention tabs for brackets, caps and other components, such as attachment elements.

Abstract: A heat exchanger has at least three tubular conduits spaced apart for the flow of air between and around the conduits. The conduits communicate with inlet and outlet manifolds for the flow of a first liquid through the conduits. An intermediate conduit is located between at least two, but not all, of the spaced-apart tubular conduits, and the intermediate conduit has inlet and outlet openings for the flow of a second liquid through the intermediate conduit.

Abstract: The invention relates to a heat exchanger of a plate-type construction having first flow channels for a first medium, each formed by a pair of plates, and having corrugated ribs, around which a second medium flows, arranged between neighboring plate pairs. In order to provide an improved heat exchanger which allows a more compact construction of the plant when used in a heating or air conditioning unit of a motor vehicle, it is proposed that the corrugated ribs and at least one of the neighboring plate pairs form second flow channels for the second medium and the second flow channels have a curved course, so that the second medium undergoes a change of flow direction on flowing through the heat exchanger.

Abstract: A fuel cooler with lamellar inner structures for connecting to an air-conditioning system of a vehicle includes an outer housing having outer connections connected to an outer supply pipe and an outer discharge pipe for a first fluid with the outer connections being integrated into walls of the outer housing in a diagonally mismatched arrangement. An inner conduit cell, surrounded by the outer housing, has an inner supply pipe and an inner discharge pipe for a second fluid passing through the inner conduit cell, which includes lamellas oriented parallel to a direction of flow of the second fluid, with the first fluid coming into contact with an outer contact surface of the inner conduit cell prior to exiting the outer housing for creating a heat exchange between, and without a mixing of, the two fluids, which are fuel and a coolant.

Abstract: An air cooled oil cooler has an upper plate, a lower plate and a plurality of tubes and outer fins disposed therebetween. Each tube contains an inner offset fin, and the outer fins formed in a corrugated shape and each having one return louver on an intermediate portion between a top portion and a bottom portion of the outer fin. The outer fins is disposed between the tubes so that the tubes and the outer fins are arranged alternatively and stacked in a pile between the upper and lower plates. The tubes are formed to be flat tubes having a height-width ratio of the tube to be 4.8-7.4%.

Abstract: The present invention relates to a plate for a heat exchanger, which has beads of refrigerant distributing sections formed asymmetrically and streamlined beads arranged in the same number on flow channels in the form of a zigzag so that refrigerant flowing inside a tank is distributed and introduced to tubes uniformly, thereby increasing a heat radiation amount and enhancing a heat exchange efficiency by forming uniform flow distribution and reducing a pressure drop of refrigerant, and miniaturizing the heat exchanger into a compact size.

Abstract: A heat exchanger including a collecting tank having an outwardly extending flange around an edge, a tube plate having a connection edge, tubes having ends extending into openings in the tube plate, and an intermediate plate having an edge lying against the connection edge of the tube plate. The connection edges of the intermediate plate and the tube plate are both mechanically connected to the flange of the collecting tank. Pins in the corners of one of the tube plate and the intermediate plate secure the tube plate and intermediate plate together. The connection edge of the plates include protrusions bendable onto the edge flange of the collecting tank.

Abstract: The invention relates to a hydraulic circuit element (20) for heat exchange between a first fluid and a second fluid, which defines a path for the first fluid and comprises at least one tube (22) having two ends and at least one tip (24) at one of said ends of the tube (22), said tip having at least one communicating passage (28b) that defines the path of the first fluid. The invention also relates to a heat exchanger obtained by stacking circuit elements (20). Such a heat exchanger can be used in particular in motor vehicles.

Abstract: The invention relates to a heat exchanger, in particular a flat pipe evaporator (1) for a motor vehicle air conditioning system, comprising at least one collecting tank (2) made of sheet steel which is divided in the longitudinal direction into at least two chambers and the ends of the pipe, in particular, flat pipes, are introduced in the base thereof. Said collecting tank (2) comprises a tunnel-shaped part (5), an essentially flat part (4) which forms the base, and covers (6) which are arranged on the front side thereof. At least one cover (6) is embodied in a flat manner in at least the outer edge area thereof and is positioned in a positive fit in the collecting tank.

Abstract: The heat exchange module, intended for a motor vehicle with internal combustion engine fitted with a high temperature cooling system and a low temperature cooling system, comprises at least one row of heat exchange tubes (102) connected to at least one inlet manifold (58, 64, 66) and to at least one outlet manifold (60, 62, 68), these tubes forming a heat exchange surface. It comprises surface distribution means (110, 42, 44) that are used to divide the heat exchange surface into a high temperature heat exchange section and a low temperature heat exchange section. The module preferably comprises a high temperature fixed section (52), a low temperature fixed section (54) and an intermediate section that can be allocated wholly or partly to the sections (52 and 54).

Abstract: A heat exchanger, method of fabrication and cooled electronics system employing the heat exchanger are provided. The heat exchanger, which in one embodiment cools air provided to heat generating components of a computer system, is disposed at an angle with respect to a direction of airflow. The heat exchanger includes a plurality of primary fins oriented parallel, and at least one plurality of secondary fins extending from at least one of a leading edge and a trailing edge of the plurality of primary fins. Each secondary fin extends from a respective primary fin at an angle other than 0° to facilitate airflow through the heat exchanger. Additionally, the secondary fins are fixedly positioned relative to and integral with the primary fins, thereby providing an increased heat transfer surface area.

Abstract: A stacking-type, multi-flow, heat exchanger includes heat transfer tubes and fins, which are stacked alternately, an end plate disposed at an outermost position of the stacked heat transfer tubes and fins in a stacking direction, and inlet and outlet pipes connected to the end plate. The heat exchanger includes a pipe connection plate provided on the end plate, having a pipe insertion hole formed therethrough, into which at least one of the inlet and outlet pipes is inserted and which temporarily fixes an end portion of an inserted pipe in the pipe insertion hole. The pipe connection plate and the entire heat exchanger may be formed with a reduced size and weight, and the brazing quality between the plate and the pipe may be improved.

Abstract: An evaporator includes a plurality of flat heat exchange tubes extending in a vertical direction and arranged at intervals along a left-right direction with a width direction thereof coinciding with a front-rear direction. The heat exchange tube has a plurality of refrigerant channels arranged along the width direction. The evaporator satisfies a relation 0.558?A?1.235, where A is a value in pieces/mm obtained by dividing the number N of the refrigerant channels of the heat exchange tube by a width W of the heat exchange tube as measured in the front-rear direction. Also, the evaporator satisfies a relation 0.35?Dh?1.0, where Dh is an equivalent diameter in mm of the heat exchange tube. This evaporator can reduce the temperature difference between air discharged into a compartment when a compressor is turned ON and that when the compressor is turned OFF.

Abstract: A mounting bracket is shown for a heat exchanger core having spaced-apart tubes having peripheral flanges surrounding a manifold. The mounting bracket has a first clip grooved to receive a front edge portion of a selected flange, and a pair of second clips, each grooved to receive, respectively, the back edge portion of an other flange disposed above the selected flange, and a further flange disposed below the selected flange. The clips are joined together by a panel portion adapted for the mounting of the heat exchanger. The clips are tapered to distribute bending stresses therealong.

Abstract: A heat exchanger adopts a four-pass structure, including two rows of tubes, a first upper tank portion communicating with the upper end of one of the tube rows, a second upper tank portion communicating with the upper end of the other tube row, a first lower tank portion communicating with the lower end of the one tube row, a second lower tank portion communicating with the lower end of the other tube row, a communicating passage that communicates between first ends of the first and second upper tank portions a partition partitioning each of the first and second upper tank portions, inflow and outflow ports communicating with the other ends of the first and second upper tank portions. The inflow port opening is smaller and has a higher center than the outflow port opening.

Abstract: An evaporator of the present invention, comprising: a plurality of tubes; fins interposed between the tubes; a tank communicated with the tube; an inlet end-plate and an outlet end-plate which are positioned at both right and left sides of the laminated tubes ; and an inlet manifold and an outlet manifold which are communicated with tank and define the flowing path of coolant;wherein the outlet manifold and/or the end part, connected with the outlet manifold, of the outlet end-plate has the coolant movement preventing part which prevents the formation of the dead zone flowed a downstream side of the outlet manifold and then whirled therein. According to the present invention, when the coolant is discharged from the tank to the outlet pipe through the outlet manifold and end-plate, the coolant in the outlet manifold can be completely discharged without congestion in the outlet manifold.

Abstract: A gas cooler includes paired header tanks, and a plurality of parallel flat tubes disposed between the header tanks. Each header tank is configured such that an outside plate, an inside plate, and an intermediate plate are brazed together in layers. When the height of each flat tube is represented by T (mm), the distance between each of the opposite longitudinal end surfaces of each flat tube and an outer surface of the corresponding intermediate plate is represented by L (mm), and the width of each communication hole of the intermediate plate is represented by W (mm), relations L?0.7 T and 1.1 T?W?2.5 T are satisfied. This gas cooler can minimize an increase in pressure loss when supercritical refrigerant flows from the flat tubes into first refrigerant flow sections of the outside plate and flows from the first refrigerant flow sections into the flat tubes.

Abstract: A heat exchanger having tubes and at least one collecting tube is used, especially for air conditioning units of motor vehicles. The heat exchanger has pipes, at least one manifold that communicates with the pipes, and at least one connection flange. The connection flange is connected in a communicating manner to the manifold via a nozzle and can be connected to a conduit.

Abstract: A device is provided for heat transfer and in particular an evaporator for an air conditioning system of motor vehicles having at least one header tank including at least two header chambers which are substantially defined by a base device and a top device. The top device includes middle side walls which are arranged adjacent to one another at least over a portion. The distance between the two side walls increases with the height above the base device.

Abstract: A heat exchanger comprises: flat tubes laminated on each other, an external fluid flowing in a space formed between the flat tubes arranged adjacent to each other; and fins interposed between the flat tubes, the fins being formed into a protruding and recessing shape having a flat plate portion joined to an outer wall face of the tube when viewed in the flow direction of the external fluid and having a vertical plate portion crossing the flat plate portion, wherein heat is exchanged between the external fluid and the internal fluid flowing in the tubes, the flat plate portion including protruding portions arranged so the protruding portions is inclined in the flow direction of the external fluid, protrusions of the protruding portions being increased toward the downstream side of the external fluid, the vertical plate portion being formed so it meanders in the flow direction of the external fluid.

Abstract: A heat exchanger assembly including a plurality of pairs of plates disposed in series for fluid flow from a pass through one pair of plates to a pass through the next pair of plates. Each pair of plates includes a central rib to define a U-shaped passage having a fluid entering leg and a fluid exiting leg interconnected by an open bottom interconnecting the legs below the lower end of the engaging central ribs. A plurality of dimples project into the passage to interact with fluid flow through the passage and each of the dimples has a hemispherical shape and a divider rib is disposed in the passage to co-act with the hemispherical dimples to reduce whistling noise.

Abstract: A heat exchanger includes a plurality of flat tubes. The flat tubes have a pair of tube sheets facing each other and joined together. The tube sheets have a flat part, a recess part, and a cylindrical tank. The tube sheet is one of a first tube sheet and a second tube sheet. The first tube sheet has a first type of tank. The second tube sheet has the first type of tank and a second type of tank. Identifiers are provided at each end of the second tube sheet. The identifiers distinguishing the second tube sheet from the first tube sheet when viewed from externally of the stacked flat tubes. A mark provided at one of the identifiers of the second tube sheet.

Abstract: A fin tube assembly has a core tube of elongated transverse cross-section having rounded leading and trailing sides, opposite flat faces, and opposite open ends for flow through the tube. A plurality of fins project in opposite directions from finned areas of the opposite flat faces. The finned areas terminate short of the rounded sides of the core tube. A first internal rib extends across the interior of the core tube adjacent one rounded side and a second internal rib extends across the interior of the core tube adjacent the opposite rounded side to separate the interior of the core tube into a larger central channel between the ribs and separate side channels between each rib and the adjacent rounded side of the core tube.

Abstract: A heat exchanger, particularly a flat-tube heat exchanger for a motor vehicle, which includes two coolant boxes and a tube block with an inlet tube attached to one of the boxes and an outlet tube attached to another of the boxes, and wherein each tube extends at least in part along one longitudinal side of the associated box and has at least one radial opening which communicates with a side opening formed in the box.

Abstract: According to a method for producing head elements for heaters, a piece of sheet metal (1) is deep drawn and cut along the edge (9) of an open side (6) to obtain a hollow body (8) with larger and narrower sides (4,5,14,15). An aperture (12) is made on each opposite larger side (4,5) of the hollow body, and threaded rings (26) are then applied around the lateral through apertures (12). Notches (16) are made on the opposite large sides (4,5), along the edge (9) of the open side (6), and then three cores (18) are introduced through the edge (9), so that a flange (17) around the notches (16) can be made by pressing, so as to close the sheet metal (1) around the cores (18) widening the notches (16). After the cores (18) have been removed, the edge (9) is welded along the flange (17) of the widened notches (16), thus obtaining holes (21) separated from each other.

Abstract: An evaporator for an air conditioning apparatus has an upper and a lower tanks and multiple tubes vertically extending and respectively connected to the tanks at upper and lower ends. A fluid passage portion is formed in the lower tank. Multiple drainage recesses are formed in the lower tank at such portions, at which the recesses do not interfere with the fluid passage portion.

Abstract: An evaporator having front and rear heat exchange assemblies arranged at air inlet and outlet sides, respectively, and adjacent to each other. Each heat exchange assembly includes a pair of upper and lower headers, and multiple refrigerant channels each having upper and lower ends connected to the upper header and lower headers. The upper and lower headers are internally provided with vertical partitions for internally dividing the headers into portions arranged laterally to reverse the direction of upward or rearward flow of a refrigerant through the refrigerant channels of the rear heat exchange assembly every specified number of refrigerant channels, and thereby provide at least one group of upward refrigerant channels in each of left and right halves of the rear heat exchange assembly. The evaporator can be used in a motor vehicle air conditioner.

Abstract: An evaporator including an evaporator core having a refrigerant inlet and a refrigerant outlet in one side portion thereof, and a connecting member joined to the side portion of the core and having in its interior a refrigerant inlet channel and a refrigerant outlet channel. The connecting member includes first and second plates. The second plate has an inlet channel recessed portion and an outlet channel recessed portion provided, each in the bottom wall thereof, with an inlet pipe connecting opening and an outlet pipe connecting opening, respectively. The first plate has on the outer surface thereof a refrigerant flow smoothing projection projecting toward the inlet pipe connecting opening. Refrigerant flowing into the inlet channel flows along the projection surface, thereby changes its flow direction smoothly and is less likely to produce a turbulent flow. The evaporator is therefore adapted to prevent occurrence of noises due to refrigerant flow.

Abstract: An evaporator includes a downwind-side heat exchanging part and an upwind-side heat exchanging part. In the heat exchanging part, paths are formed by partitions. In the evaporator, the flowing direction of coolant flowing in the upwind-side path is opposite to the flowing direction of the coolant flowing in the downwind-side path opposing to the upwind-side path. The number of heat exchanging passages in the path where the coolant rises is smaller than the number of heat exchanging passages in the paths where the coolant downs. As a result, the evaporator enables an increasing of the quantity of coolant flowing in the paths. Thus, if superimposing the upwind-side heat exchanging part on the downwind-side heat exchanging part, then it is possible to reduce an area causing a rise in blowout temperature of the coolant due to its short supply.

Abstract: A heat exchanger according to the present invention has a plurality of tubes, header tanks and a support. Fluid flows through the plurality of tubes. The header tanks have a core plate and a tank body, and are disposed at longitudinal end portions of the plurality of tubes in such a manner to be communicated with internal spaces of the plurality of tubes. The core plate has approximately arc-shaped cross-section of which both side fringes are fixed onto the tank body and of which a middle portion fixes the longitudinal end portions of the plurality of tubes therein and bulges with respect to the both side fringes toward the plurality of tubes. The tank body and the core plate form an internal space of each of the header tanks. The support retains an interval between the both side fringes.

Abstract: A heat exchanger assembly that addresses the thermal cycling problem to increase the durability of the heat exchanger core by fabricating at least the tube next adjacent to each of the reinforcing members with a cross section adjacent each of the headers including a radius having a partial maximum tube strain energy density and fabricating each of the reinforcing members with a connection section adjacent each of the headers having a reinforcement with a partial maximum strain energy density greater than the partial maximum strain energy density of the adjacent tube.