Abstract: An evaporator utilizes micro-channel tubes, and more particularly, has a structure of a heat exchanger using micro-channel tubes, which is applied to an evaporator of a household air conditioner. The evaporator, using micro-channel tubes, includes a first heat exchanging unit including a pair of upper and lower headers, and a plurality of the micro-channel tubes erected vertically between the headers so that condensed water flows downward, and a second heat exchanging unit, installed adjacent to the first heat exchanging unit, includes a pair of upper and lower headers, and a plurality of the micro-channel tubes erected vertically between the headers so that condensed water flows downward. A plurality of return pipes connect upper headers of neighboring heat exchanging units to transmit refrigerant between the neighboring heat exchanging units.

Abstract: The present invention relates to a heat exchanger for carbon dioxide, in which a tank having a number of domes is coupled with a header and a connection member having a connection flow channel is interposed between the header and the tank, thereby easily changing a refrigerant flow channel, reducing the volume of a header tank, and improving productivity, pressure resistance and durability.

Abstract: An evaporator including a heat exchange core of tube groups in plural parallel rows in a front-rear direction, each including plural heat exchange tubes in a left-right direction at a spacing, and a tank at the heat exchange core lower end and having headers in the front-rear direction. The heat exchange tubes are joined to the headers, while inserted through respective tube insertion holes in a top wall of the header. Adjacent headers connect to each other by a connector providing a drain gutter with front, rear opposite side faces extending respectively forwardly, rearwardly away from each other as the side faces extend upward. Each insertion hole has one end adjacent to the connector positioned in the drain gutter side face and each heat exchange tube has a side end adjacent to the connector positioned in the drain gutter. The connector has drain holes extending therethrough.

Abstract: A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle, and a flow sleeve in an enlarged-diameter discharge annulus at an upper end adjacent the tube sheet to prevent short-circuiting of the shell-side fluid into the shell-side fluid outlet. The tube bundle can include a plurality of ring baffles and lattice baffles. The longitudinal flow configuration can provide a lower shell-side pressure drop and lower cost compared to a conventional cross-flow reforming exchanger.

Abstract: A thermal buffer for an intermittent thermal load, e.g., a directed energy weapon (DEW) system, includes a phase change heat exchanger (PCHEX), an apparatus for circulating a first working fluid of the thermal load through first conduits of the PCHEX cell in a first direction such that heat is transferred between the first fluid and a phase change material (PCM) of the PCHEX in a second direction and causes a first phase change in the PCM, and an apparatus for circulating a second working fluid of, e.g., a heat pump through second conduits of the PCHEX in a third direction opposite to the first direction such that heat is transferred between the second fluid and the PCM in a fourth direction opposite to the second direction and results in a second phase change in the PCM opposite to the first phase change therein.

Abstract: A device which is used to replace heat, for a motor vehicle, includes at least one first collecting and/or distribution device for at least one fluidic medium. The collecting and/or distribution device is fluidically connected to a plurality of through-flow devices, through which the medium flows at least in parts. The collecting and/or distribution device includes at least one base device, a covering device and a separating device, which divides the collecting and/or distribution device into at least two partial areas. The base device includes at least one projection which protrudes in an inward manner from a predetermined plane of the base device in relation to the collecting and/or distribution device and at least one section of the separating device is in contact with at least one lateral side of the projection, and at least one section of the plane of the base device is in indirect contact.

Abstract: An evaporator 1 is configured such that two heat exchange tube groups 16, each composed of a plurality of heat exchange tubes 15, are provided between a pair of header tanks 2, 3, while being separated from each other in a front-rear direction. Each of the header tanks 2, 3 includes two header sections 5, 6, 11, 12. Each header tank 2, 3 includes a first member 21, 93 to which the heat exchange tubes 15 are connected, and a second member 22, 94 which is joined to the first member 21, 93 and covers the side of the first member 21, 93 opposite the heat exchange tubes 15. Partition portions 41, 42 for dividing the interiors of the header section 5, 6, 11, 12 into upper and lower spaces 5a, 5b, 6a, 6b are provided on the second member 22, 94 of the header tank 2, 3. Through holes 47, 51A, 101, 102 for establishing communication between the upper and lower spaces 5a, 5b, 6a, 6b of the header section 5, 6, 11, 12 are formed in the partition portions 41, 42.

Abstract: A heat exchanger assembly having an inlet header, an outlet header spaced apart from and substantially parallel the inlet header, and a plurality of refrigerant tubes each extending between and in hydraulic communication with the inlet header and outlet header. Contained within the outlet header is a refrigerant collector conduit adapted to provide a predetermined pressure drop (?P) and having a cross-section area Acollector. The refrigerant collector includes a plurality of orifices having a cumulative orifice area (nAorifice) that are substantially equally spaced along the refrigerant collector. The collector conduit is in fluid communication with the outlet header for transferring the vapor phase of a two refrigerant. The collector conduit cross sectional area (Acollector) and cumulative orifice area (nAorifice) is described by the following equation: ? ? ? p = m dot 2 ? ? [ 467.892 ? ( 1 A collector 2 - 1 n 2 ? A orifice 2 ) + 51.

Abstract: A circular refrigerant outlet is formed in an endmost flat, hollow member of a laminated heat exchanger. An outlet header is fixed to the endmost flat, hollow member, and an outlet pipe having a circular cross section is connected to an open end of the outlet header. The inside diameter of the refrigerant outlet is 90% to 110% that of the outlet pipe. The outlet header has a first portion having a refrigerant passage hole communicating with the refrigerant outlet. The first portion has a vertical, flat wall portion and two fragmentary, cylindrical wall portions continuous with respective upper and lower edges of the flat wall portion. The curvature radius of the inner surface of the fragmentary, cylindrical wall portion is 35% to 50% the inside height of the first portion. The equivalent inside diameter of the first portion is 90% to 110% the inside diameter of the outlet pipe.

Abstract: A heating heat exchanger in a coolant circuit for motor vehicles is provided whereby the air to be heated can be additionally heated by a refrigerant circuit, operable as heat pump or short circuit, for additional heating. A gas cooler/condenser for the additional heating operation and a functionally separated evaporator for the cooling plant operation of the refrigerant circuit are provided. The heat exchanger surfaces of the gas cooler/condenser for the additional heating operation are integrated into the heating heat exchanger and an additional heating operation the air to be heated is simultaneously heated by the heating heat exchanger and the gas cooler/condenser.

Abstract: The invention relates to a heat exchanger module (1) for a motor vehicle, comprising at least one heat exchanger (2), preferably a coolant cooler, and laterally arranged plastic module supports (11, 12) which retain the heat exchanger module (1) and support the same on the vehicle. According to the invention, the heat exchanger (2) is provided with two receptacles (4, 5) having two longitudinal faces, one lateral face, and two front faces (4a, 4b, 4c; 5a, 5b, 5c) while the module supports are embodied as slip-on boxes (11, 12) which have the shape of the receptacles (4, 5), embrace the longitudinal, lateral, and front faces (4a, 4b, 4c-, 5a, 5b, 5c) thereof in a positive manner, and are secured to the front faces (4c, 5c) by means of locking hooks and/or snap-in hooks.

Abstract: A heat exchanger (10) having at least one inlet tube (12) that ducts a heat exchange fluid (14). At least some of the inlet tubes (12) are characterized by a first cross-sectional profile (16). A core (18) is in fluid communication with the at least one inlet tube (12). The core (18) has one or more rows of core tubes that also duct the fluid. At least some of the core tubes (20) are characterized by a second cross-sectional profile (22). The first cross-sectional profile (16) is different from the second cross-sectional profile (22). A first endplate assembly (26) is positioned between the at least one inlet tube (12) and the core (18). The first endplate assembly (26) has a first section (28) that defines an inlet orifice (30) that is sized to sealingly engage the first cross-sectional profile (16). A second section (32) defines an outlet orifice (34) that is sized to sealingly engage the second cross-sectional profile (22).

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: Systems, methods, and devices are disclosed, including a heat exchanger having a manifold with a coolant inlet and a coolant outlet and a plurality of tubes with interiors fluidly connected to the manifold. In some embodiments, the plurality of tubes and the manifold are configured to fit within a bonnet of a compressor.

Abstract: An improved heat exchanger for an automotive vehicle, comprising at least one end tank; and at least two heat exchangers including a plurality of spaced apart metal tubes with fins between the spaced tubes. The heat exchangers are preferentially disposed so that their respective tubes and fins are generally co-planar with each other and are connected to the end tank. In preferred embodiments, the heat exchanger may include a radiator element.

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: The invention relates to a heat exchanger for a motor vehicle, comprising a first flow path (1) with a number of flow conduits (6) for conducting a fluid to be cooled, a deflection region (13), situated downstream of the first flow path (1) and a second flow path (2), situated downstream of the deflection region (13). According to the invention, the flow conduits (6) of the first flow path (1) continue in the deflection region (13) and the second flow path (2) as continuous separate flow conduits (6). The invention also relates to a flow conduit (41, 41?, 61, 61?, 71, 71?, 81, 81?, 91, 91?) for a heat exchanger (30, 40) for exchanging heat between a first fluid (31) and a second fluid (33), comprising: a conduit casing (63, 63?, 73?, 83, 83?, 93, 93?) with an interior (67) that is surrounded by an inner face (65) of the conduit casing; and a number of struts (69, 79, 79?, 89, 89?, 99) that are located in the interior (67) on the inner face (65) of the conduit casing.

Abstract: Optimized designs of heat exchangers, and, in particular, heat exchangers and assemblies comprising multi-exchangers or combo coolers comprising different heat exchanger parts or elements, and fins or separators of different types and/or characteristics on the different tube parts of the heat exchanger results, are disclosed. The two part heat exchanger is capable of being traversed by different fluids, and fins differ in characteristics, such as height and pitch, to increase overall heat exchanger efficiency.

Abstract: There is provided a heat exchanger including: a heat exchange section in which a plurality of flat tubes are arranged substantially in parallel in a minor axis direction at first intervals and in which fins are disposed between the flat tubes; and a header to which at least some flat tubes out of the plurality of flat tubes are connected, in a state where the at least some flat tubes are bent in the minor axis direction outside the heat exchange section and end parts of the at least some flat tubes are arranged substantially in parallel at second intervals that are narrower than in the heat exchange section, so that the minor axis direction and a central axis direction of the header are the same direction. With this heat exchanger, it is possible to distribute fluid to the individual flat tubes with more equal conditions so that the heat exchange efficiency can be increased.

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 including an inlet port, an outlet port, a header, a plurality of cooling tubes, and a thermal bypass valve integrated therein. The thermal bypass valve is located in the header and is configured to restrict the flow of fluid through the cooling tubes of the heat exchanger below a target fluid temperature. The thermal bypass valve includes a valve body that is movable between first and second operational modes to restrict and not restrict the flow of fluid.

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: Disclosed herein is a heat exchanger with tubes (1) and at least one end piece, which has a tube bottom that, in turn, has a bottom plate (8), a baffle plate (12) and a covering plate (16).

Abstract: A non-metallic intercooler assembly includes an intake header tank, outlet header tank, and a multitude of non-metallic charge tubes which communicate airflow from the intake header tank to the outlet header tank. Several combinations of plastics parts are described. Tanks of intercoolers can be made from plastics today but with complicated clamping and sealing. Each tank in this description can be laser welded in place. Various combinations of laser opaque and laser transparent materials are utilized to achieve an effective laser welding assembly process. Intake systems for automotive use are widely made of plastic materials today and this description shows how those types of materials can be employed in an intercooler. Each non-metallic tube can be supported by a plastic fin feature whose primary function is to support the structure to promote airflow conditions favorable to heat transfer.

Abstract: A parallel flow evaporator comprises a transitional plate. A left side plate and a right side plate are connected with two side edges of the transitional plate respectively. A first liquid inlet manifold is secured to an upper side edge of a forward side surface of said transitional plate, a first gas outlet manifold is secured to an upper side edge of a rearward side surface of said transitional plate, a second liquid inlet manifold is secured to a lower side edge of the forward side surface of said transitional plate, and a second gas outlet manifold is secured to a lower side edge of the rearward side surface of said transitional plate. A plurality of flat tubes, which are parallel with and distant from each other, are arranged between said first liquid inlet manifold and said second liquid inlet manifold. Said first liquid inlet manifold and said second liquid inlet manifold as well as said first gas outlet manifold and said second liquid inlet manifold communicate with said flat tubes.

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: An upper header tank of an evaporator is formed by three plates. The outside plate has an inflow-side refrigerant-passage outwardly bulging portion whose one end portion communicates with a refrigerant inlet. The inside plate has tube insertion holes. The intermediate plate has communication holes for establishing communication between the tube insertion holes of the inside plate and the outwardly bulging portion of the outside plate. The communication holes of the intermediate plate are connected by communication portions so as to form a resin passage communicating with the outwardly bulging portion. Of all the communication portions of the refrigerant passage, a plurality of upstream communication portions are smaller in width than the remaining communication portions. The relation 0.25?A/B?0.35 is satisfied, where A represents the number of the narrow communication portions, and B represents the total number of the communication holes which form the refrigerant passage.

Abstract: The invention relates to a heat exchanger, in particular for a stationary UT heating body (1) of a motor vehicle heater. According to the invention, said heat exchanger comprises a ventilation device which is embodied as a ventilation bore (22, 36) which is, in particular, embodied in the separating wall of the upper coolant tank (4) of the heating body and is located at a distance from the feed and return section (10).

Abstract: A heat exchanger used as an evaporator is configured such that two heat exchange tube groups, each composed of a plurality of heat exchange tubes, are provided between a pair of header tanks, while being separated from each other in a front-rear direction. Each of the header tanks includes two header sections. Each header tank includes a first member to which the heat exchange tubes are connected, a second member which is joined to the first member and covers the side of the first member opposite the heat exchange tubes, and a partition plate disposed between the first and second members and having partition portions which divide the interiors of the two header sections into respective upper and lower spaces. Through holes are formed in the partition portions so as to establish communication between the upper and lower spaces of the header sections.

Abstract: The invention relates to a heat exchanger, in particular for a motor vehicle, having tubes and if appropriate corrugated fins through which a first, hot medium can flow and which are arranged between collecting boxes, and having at least one side part (1) which is arranged laterally between two collecting boxes, a second medium which flows around the tubes and if appropriate corrugated fins being colder than the first, hot medium during operation, the side part (1) absorbing at least some of the tensile stresses which act at least on the outermost tube as a result of different thermal expansions of the tubes and if appropriate corrugated fins, and the side part (1) having slots (2) and/or openings (4) which change the spring constant of the side part (1) in relation to a side part without slots and/or openings such that, in the event of a different longitudinal expansion of the central tubes relative to the outermost tube which is arranged adjacent to the side part (1), the tensile stress which acts on the ou

Abstract: The invention relates to a cross-counterflow heat exchanger, such as a cross-counterflow radiator for a motor vehicle, having an improved inlet/outlet tank wherein the inlet and outlet chambers are laterally off-set allowing the inlet and outlet ports to be oriented in the same general direction toward the fluid source; more particularly, the inlet and outlet chambers are tapered thereby providing improved flow distribution and pressure drop for fluid flow; still more particularly, the return tank inlet and outlet chambers are contra-tapered allowing the inlet and outlet ports to be substantially aligned resulting in a laterally compact heat exchanger.

Abstract: An improved and simplified hydrocarbon processing system is provided which has a mixing section for mixing of hydrogen and hydrocarbon to form combined, two-phase streams, as well as an indirect heat exchange section having a plurality of double-pass shell-and-tube heat exchangers designed to simultaneously receive and heat respective combined streams while maintaining separation of the streams. The use of the specialized double-pass exchangers results in significantly reduced capital and maintenance costs.

Abstract: A cooler device comprising a cooling portion with at least one tubular element which has an internal flow duct for guiding a first medium between a first and a second tank. A second cooling medium in contact with an outside surface of the tubular element cools the first medium as it is led through the flow duct. A first tank receives the first medium before it is led into the cooling portion. The first tank has an outside surface provided with protruding material portions which produce an enlarged contact surface with the cooling second medium so that the first medium is subjected to a first step of cooling within the first tank.

Abstract: An evaporator operated with the carbon dioxide gas, comprises at least a unit core including a plurality of heat transmission tubes having a path with a refrigerant flowing therein, a first tank connected to an end opening of the heat transmission tubes and formed with a refrigerant supply path and a second tank connected to the other end opening of the heat transmission tubes and formed with a refrigerant discharge path. The width L1 of the unit core is given as 50 mm?L1?175 mm. The equivalent diameter d of the refrigerant supply path of the first tank and the refrigerant discharge path of the second tank is given as 4.7 mm?d?9.6 mm.

Abstract: A stamped manifold for a heat exchanger includes a central portion having a plurality of mating tubular members for connection to tubes of a heat exchanger. The manifold includes a plurality of folds disposed between the mating tubular members to form a pair of channels below a plane of the central portion and a central fold above the plane of the central portion. The manifold includes a first extension member extending from a side edge of the central portion and a second extension member extending from another side of the central portion and opposing the first extension member. The free ends of the first extension member and the second extension member are disposed in the pair of channels in contact with the central fold and secured in place to define a first fluid conduit and a second fluid conduit.

Abstract: An improved heat exchanger for an automotive vehicle is disclosed. The heat exchanger typically includes at least one end tank; and a plurality of spaced apart extruded metal tubes with fins between the spaced tubes. The heat exchanger may be single or multi-fluid. In preferred embodiments, the heat exchanger is arranged to have tubes or tube arrangements the improve heat transfer efficiency.

Abstract: A multiple-pass heat exchanger having opposing headers with beveled end walls, one header having nozzles on opposite sides of a separator wall for delivering heat exchange fluid at one temperature from one or more nozzles on one side of the separator wall, the heat exchanger having one set of fluid flow tubes for conveying the fluid in one direction to the other header and another set of fluid flow tubes for carrying the fluid in the opposite direction from the latter header for delivering to the header with a nozzle or nozzles for discharging the fluid from the latter header at a changed temperature. There is also disclosed a multiple systems combined heat exchanger having an opposing headers with beveled end walls, wherein at least two heat exchangers independent of each other share the respective headers which are divided from each other by separator walls.

Abstract: The invention relates to a device for exchanging heat, particularly for use in motor vehicle air-conditioning systems, comprising at least one coolant, at least one coolant inlet (3), and at least one coolant outlet (4), which lead into at least one head pipe (7, 8, 9), whereby the head pipe (7, 8, 9) is divided into at least one inlet section (41?) and into at least one outlet section (42?) by at least one separating element (49). The device for exchanging heat comprises at least one flow-through element (19), which has at least two flow paths situated at least partially parallel to one another, and at least one cross-distributor (10?, 10?, 11?, 11?, 12) via which the flow paths of the flow-through element (19) are fluid-connected so that the inlet section is fluid-connected to the outlet section of the head pipe (7, 8, 9).

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 heat exchanger is disclosed including a first tube, a second tube, a first inlet-connecting block, a first outlet-connecting block, a second inlet-connecting block, a second outlet-connecting block and a terminal connecting block. The first tube internally has a first flow passage through which first coolant flows. The second tube internally has a second flow passage through which second coolant flows. The first tube is connected to the first inlet-connecting block and the first outlet-connecting block. The second tube is classified into an inflow tube group and an outflow tube group. Tubes that belong to the inflow tube group are connected to the second inlet-connecting block and the terminal connecting block. Tubes that belong to the outflow tube group are connected to and the terminal connecting block and the second outlet-connecting block. The first and second tubes are disposed such that the first and second flow passages are substantially perpendicular to one another.

Abstract: An object of the present invention is to provide a specific relationship to be achieved by numerical values selected to sustain a desired level of coolant distributability as well as miniaturization and weight reduction for tanks in a heat exchanger adopting a structure in which the width of tubes therein is set smaller relative to the inner diameter of the tanks. In the heat exchanger according to the present invention, the inner diameter of the tanks is set small relative to the tube width, and with Dt representing an equivalent diameter at the passage section of the tanks and L representing the length of the longest path extending from an entrance to an open end of a tube, 15?L/Dt?42 is true.

Abstract: A combined radiator and charge air cooler package comprises a radiator for cooling engine coolant, and a charge air cooler for cooling charge air having upper and lower portions. The upper charge air cooler portion is disposed in overlapping relationship and adjacent to the upper end of the radiator, and the lower charge air cooler portion is disposed in overlapping relationship and adjacent to the lower end of the radiator, on the face side thereof. Ambient air may flow in series through the upper end of the radiator and the upper charge air cooler portion, and through the lower charge air cooler portion and the lower end of the radiator. The charge air cooler portions are operatively connected such that the charge air may flow between the lower manifold of the upper charge air cooler portion and the upper manifold of the lower charge air cooler portion.

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: An improved combustion air charger, such as a turbocharger or a supercharger, includes a housing (10) having a rotary shaft (18) journalled therein. At least one compressor wheel (20,22) is located on the shaft (18). The housing (10) includes an ambient inlet (30) as well as a compressed air outlet (32) and a heat exchanger (36) is located between at least one of the compressor wheels (20) and the outlet (32) and is arranged so that air flow through the heat exchanger (36) is generally in the radially inward direction.

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 countercurrent heat exchanger includes a pair of heat exchanger cores (1, 2) with multiple tubes (11, 21) and fins (12, 22) which are arranged alternatively and next to each other in its depth direction. One end sides of the tubes (11, 21) of the inflow-side heat exchanger core (1) and the outflow-side heat exchanger core (2) is connected with a U-turn intermediate tank (3), and the other end sides are connected with the inflow-side tank (4) and the outflow-side tank (5) which are separated from each other. The inflow-side tank (4), outflow-side tank (5) and intermediate tank (3) are attached to a vehicle body side so that the heat exchanger cores (1) and (2) can expand and contract with respect to the intermediate tank (3).

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, 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: 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.