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: 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 improved heat exchanger that reduces the thermal stress in components thereof especially tube plates or tube sheets so as to enable greater temperature differences across adjacent components while reducing the temperature gradient and thus extending the life of the heat exchanger is accomplished by attaching or bonding an insulating material of low thermal conductivity such as a sheet of PTFE, a metal jacketed layer of insulating cork or nonmetallic composite such as micarta sheeting to the metal component or tube sheet or tube plate.

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 header construction intended for use in a heat exchanger (36) employed in a relatively high pressure application includes an array of generally parallel tube runs (84) with fins (82) extending between adjacent ones of the tube runs. At least one relatively flat header plate (86) has a plurality of tube slots (88) for receiving ends (90) of the tubes (84) and a tank (94) is mounted to and sealed to the header plate (86). Peripheral flanges (112) are located about tube slots (86) in the headers and a header reinforcing plate (114) is bonded to the header plate (86) oppositely of the tank (94). Stiffening beads in the form of flanges (120) are located on the header reinforcing plate (114) between openings (118) therein through which the tubes (84) pass and extend away from the header plate (86).

Abstract: In tubular portion of a tank, slits are formed in each side face of chambers or across all side faces of the chambers. For partition plates that are to be inserted from the slits, groove portions in which the partition plates are fitted are formed by cutting portions to which the partition plates butt. The slits are formed in the chambers at positions relatively shifted from each other in a direction in which tubes are layered. This structure guarantees that, in the tank for a heat exchanger, bypass leakage of a heat exchange medium between sub-chambers is prevented from occurring when the partition plates are inserted in the tank from the slits provided on the tank side faces. Further, the tank can maintain required strength even if the slits are formed in it.

Abstract: The invention relates to a heat exchanger (10) with tubes (80) and a collector box (20). Said collector box (20) has a tube-plate (30) with tube openings (60) and with angled or rounded lateral regions (110,120).

Abstract: In an inlet heat exchange unit, wherein a refrigerant's dryness is low and its flow distribution is likely to cause deviation, a number of heat exchange passages in an ascending flow path at an upstream side is less than the number of heat exchange passages in descending flow paths. Accordingly, refrigerant flowing in the ascending flow path increases, and a region in which the refrigerant lacks is reduced, thereby decreasing temperature variations. In an outlet heat exchange unit, wherein the refrigerant's dryness is high and its flow distribution is unlikely to cause deviation, the number of heat exchange passages a most downstream path is greater than the number of heat exchange passages in the immediately preceding path, thereby suppressing an increase in flow resistance in the most downstream path and keeping flow resistance in the outlet heat exchange unit low.

Abstract: A multi-fluid heat exchanger having separate fluid flow paths for two fluid streams to be heated or cooled by a third fluid stream includes first and second elongated, parallel tubular headers (10, 12), having opposed ends (14), generally uniformly spaced elongated tube slots (16) in each of the headers (10, 12) with the tube slots (16) in one header (10) facing-and aligned with the tube slots (16) and the other header (12), a plurality of flattened tubes (20) extending between the headers (10, 12) and having ends (22) received in aligned ones of the tube slots (16), one tube slot (24) in each header being unoccupied by any of the flattened tubes (20), the one tube slots (24) being aligned with each other and located at a predetermined location between the ends (14) of the headers (10, 12) and between two groups (A, B) of the flattened tubes (20) so there are two groups of the flattened tubes (20) on each side of the one tube slot (24), a pair of baffles (30) in each header (10, 12) with one on each side of t

Abstract: A serpentine, multiple pass heat exchanger includes at least one flattened, multiple port tube in serpentine configuration with a plurality of general parallel runs defining at least three hydraulically separate flow paths fins. Fins extend between and are in thermal conducting relation with adjacent ones of the runs and an inlet manifold is located on one end of the tubes with an outlet manifold located on the other. A baffle is located in the outlet manifold and the inlet manifold includes a partition which extends both longitudinally and transversely within the inlet manifold to hydraulically separate one flow path from the inlet port while connecting other flow paths to each other to provide for multiple passes.

Abstract: The evaporator includes the upper side and lower header members 10 and 50 disposed at the upper and lower end of the core 1. One end of each tube 6 constituting the upstream-side tube group P1 is connected to the inlet-side tank 11, while the other end to the lower header member 50. One end of each tube 7 constituting the downstream-side tube group P2 is connected to the outlet-side tank 12, while the other end to the lower header member 50. The refrigerant flowed into the inlet-side tank 11 is introduced into the outlet-side tank 12 by passing through the upstream-side tube group P1, the lower header member 50 and the downstream-side tube group P2, so that the refrigerant evaporates by exchanging heat with ambient air A. Accordingly, it improves the heat exchange performance and decreases the thickness.

Abstract: A heat exchanger for exchange of heat between a first fluid and a second fluid comprises a stack of pockets (1) mutually aligned in a longitudinal direction and having two header boxes (16, 17) that are mutually juxtaposed in a lateral direction. The first fluid is injected into an upstream connecting channel (12) by a longitudinal nozzle (22) passing through a heat exchanger end face (5) remote from the upstream connecting channel, and at least one other connecting channel (14). This longitudinal nozzle has a cross section of oblong general shape, whose greatest dimension is parallel to the greatest dimension of the pockets. The heat exchanger may be produced particularly in the form of an evaporator for an air-conditioning device for the passenger compartment of a vehicle.

Abstract: A compound type heat exchanger has a core part including a plurality of heat exchanging tubes and fins juxtaposed and alternately stacked. Header pipes are connected to the heat exchanging tubes at both ends of the heat exchanging tubes. A pseudo heat exchanging passage member having a substantially L-shaped or Z-shaped section is arranged in place of a specified heat exchanging tube of the heat exchanging tubes and a fin or both fins adjoining the specified heat exchanging tube. At the boundary of the pseudo heat exchanging passage member, the core part is divided into two parts, defining an oil cooler unit and a condenser unit. Owing to the provision of the pseudo heat exchanging passage member in the core part, heat conduction from the oil cooler unit to the condenser unit can be suppressed.

Abstract: The invention has as an object providing a two-block heat exchanger that can improve the heat exchange capacity by distributing the refrigerant evenly in the refrigerant path. The invention is a two-block heat exchanger, and the refrigerant distribution part provides two separate refrigerant paths R1 and R2 through which the refrigerant flows and an opening provided at both of the respective ends of these refrigerant paths R1 and R1. Among the two refrigerant paths R1 and R2, the open end of the space Sout 1 (refrigerant circulation space) on the exit side formed by the one opening of the one refrigerant path R1 is connected to the open end of the space Sin 2 (refrigerant circulation space) on the entrance side formed by one opening of the other refrigerant path R2. After the refrigerant flows into the refrigerant path R1 of each refrigerant distribution part, and refrigerant flows through the refrigerant path R2 of each of the refrigerant distribution parts.

Abstract: A stack type heat exchanger includes a plurality of unit frames stacked on one another, each unit frame including a tube made by combining a pair of plates and forming a path for refrigerant and upper and lower tanks disposed at upper and lower ends of the tube, a radiation fin provided between the stacked tubes, an inlet pipe and an outlet pipe provided at one side of the unit frames through which refrigerant enters and is exhausted, a first burr formed in the lower tank to protrude in a direction opposite to a direction in which the refrigerant flows, and a second burr formed in the upper tank to protrude in the same direction as the direction in which the refrigerant flows.

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: A heat exchanger specifically intended to act as a water heater by heating water utilizing heat rejected from a gaseous refrigerant in a refrigeration system includes first and second, generally parallel, spaced tubular water headers (10,12) with a plurality of water tubes (14) extending in spaced relation between the water headers (10,12) and in fluid communication therewith. An inlet (16) is provided to one of the headers (10) and water outlets (20,28,30) are provided from at least one of the water headers (10,12). A plurality of gas tubes (32), at least one for each water tube (14), are helically wound about a corresponding one of the water tubes (14) and have opposed ends (34,36) connected to respective ones of first and second, generally parallel, spaced gas headers (40,42).

Abstract: A heat-exchanger assembly, which can be advantageously employed as an intercooler for an air-charging system for an internal combustion engines includes a plurality of generally wedge-shaped coolant tubes through which coolant is directed for effecting cooling of compressed air flowing about the tubes. In order to promote efficient operation, each of the wedge-shaped cooling tubes includes a plurality of coolant passages of substantially identical hydraulic diameter or cross-sectional area, thereby promoting uniform flow of coolant through each coolant tube. Each coolant tube includes outer walls which may be of a substantially uniform thickness, or which may increase in thickness across the width of the tube.

Abstract: The heat exchanger has a plurality of stacked individual boxes for defining locally an inlet chamber and an outlet chamber for fluid. The heat exchanger includes an insert that comprises an inlet and outlet opening for fluid extended into the chambers by a body arranged for fluid communication of the opening with the first or second chamber. The insert that comprises a common part the body of which is provided with at least two openings capable of communicating with the first and second chambers, and it comprises a separating member for isolating the fluid currents between the opening and the chamber with which the opening must not communicate, the separating member being selected between two different shapes each corresponding to the fluid communication of the opening with one of the chambers.

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 extruded metal tubes with fins between the spaced tubes. The heat exchangers are 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 bypass element.

Abstract: A rotary compressor machine, such as a combustion air charger, includes a rotatable shaft (18) having at least one compressor wheel (20,22) thereon and disposed within a housing (12,14). A donut-shaped heat exchanger (36) is located within the housing (12,14) between the compressor wheel (22) and an outlet (32) from the housing and has radially inner and outer peripheries (40,42). The outer periphery (40) defines an inlet for the heat exchanger (36) for gas discharged by the compressor wheel (20). The heat exchanger is provided with radially inner and outer flow paths defined by tubes (92) and includes a combined manifold and tank (44) which is secured and sealed to a header plate (88) receiving the tubes (92). The combined manifold and tank (44) includes first, second and third axially spaced walls (96,98,100) with each having a central opening (110,112,114).

Abstract: A layered heat exchanger, for example for use for motor vehicle coolers. To provide a turn portion in the heat exchanger for changing flow direction of a fluid flowing zigzag through a fluid circuit, a metal plate is provided at the upper or lower ends of a partition ridge with a fluid flow direction changing passage forming caved portion having a bottom wall of circular-arc cross section. Front and rear upper or lower tank portions are held in communication with each other through a fluid flow direction changing passage of approximately circular cross section and formed by the caved portions opposed to each other. The turn portion is diminished in stress concentrated thereon due to fluid internal pressure and given an increased resistance to pressure to effectively prevent tank side walls from breaking, consequently making it possible to decrease the metal plates thicknesses, to achieve a cost reduction by the decreased thickness and to assure an improved heat exchange efficiency.

Abstract: A hot air sealing arrangement for sealing between an inner surface of an exhaust duct conveying hot combustion products and an outer surface of a heat exchanger disposed within the exhaust duct includes an inner receiver attachable to the outer surface of the heat exchanger, an outer receiver attachable to the inner surface of the exhaust duct, and a seal having an outer bead engageable with the outer receiver for rotary movement therein and an inner bead engageable with the inner receiver for sliding movement therein. The seal further includes a connecting sheet between the outer bead and the inner bead.

Abstract: A fluidized-bed reactor for the oxychlorination of ethylene, oxygen and HCL, comprises a heat exchanger, having tube packets in the fluidized-bed for releasing the heat evolved from exothermic reaction to a heat-transfer medium in the tube packets, in particular to water/steam. The tube packets come into contact with water via a ring pipe and the steam being removed via a ring pipe to provide an economical solution with which expensive drilled passages are avoided, the calculation for ring pipes is facilitated and a large number of wall passages is dispensed with. This is achieved by the ring pipe being mounted as a collector or chamber directly on the reactor wall.

Abstract: A vehicle radiator including inlet and outlet headers, a soldered core having a plurality of coolant flat tubes joining the inlet header and the outlet header with cooling fins on opposite sides of the coolant flat tubes, and a multifunction flat tube on at least one side of the core. The multifunction flat tube has a greater section modulus than the coolant flat tubes, and is soldered to adjacent cooling fins and the inlet and outlet headers whereby the multifunction flat tube carries coolant from the inlet header to the outlet header. The multifunction flat tubes each also have an inner flow resistance which is substantially smaller than the inner flow resistance of individual coolant flat tubes whereby more coolant flows through each multifunction flat tube than flows through an individual coolant flat tube per unit time.

Abstract: A method and apparatus for protecting personnel required to work inside of a heat exchanger unit when the cooling air fan has been taken out service for maintenance or repair of the fan or other mechanical equipment, while hot fluid continues to flow through the heat exchanger tubes, and adjacent heat exchanger units continue to operate. An inflatable heat shield is inserted into the out of service heat exchanger unit, and inflated therein to block the convective heat generated by the hot fluid and the adjacent operating units from reaching the personnel working inside the heat exchanger unit.

Abstract: An evaporator includes a plurality of laminated tubes, each of which is provided therein with a refrigerant passage, an inlet header chamber which is in communication with one end of the refrigerant passage, and an outlet header chamber which is in communication with the other end of the refrigerant passage. The inlet header chamber is located above the refrigerant passage. The inlet header chamber is partitioned by a partition wall into an inner header chamber and an outer header chamber which is disposed around the inner header chamber and which is in communication with the refrigerant passage. The inner header chambers of the adjacent tubes are in communication with each other. An assembly of the inner header chambers forms a header inlet tank chamber. The partition wall is provided with refrigerant holes located above a lowermost point a of the inner header chamber and at different levels.

Abstract: A heat exchanger includes a plurality of tubes, a pair of header pipes, partition walls, an inlet connector block and an outlet connector block. The plurality of tubes have one ends connected to one header pipe and other ends connected to the other header pipe. The header pipe internally has a pipe-inside flow-through bore. The partition wall is internally formed in each header pipe to divide the pipe-inside flow-through bore into two regions. Each header pipe has a block connector bore opening at an outer side wall opposing to an area to which the tubes are connected and opening to the pipe-inside flow-though bore by cutting out a portion of the partition wall. The inlet connector block is connected to the block connector bore of one header pipe to admit coolant to flow in. The outlet connector block is connected to the block connector bore of the other header pipe to permit coolant to flow out.

Abstract: A heat exchanger includes aligned tubes and upper and lower header tank units, each of which includes two fluid conduits communicated with the tubes. Each header tank unit further includes an intermediate plate, which defines a plurality of communication holes therethrough. Each communication hole communicates between a corresponding one of the tubes and a corresponding one of chambers defined by the fluid conduits of the header tank unit such that each tube is spaced apart from the corresponding one of the chambers.

Abstract: A widthwise one half portion of a core section 5a is constituted by a first section 20 formed by stacking a plurality of first elements having first and second linear channels 34 and 35 inside them and fins, and a widthwise other half portion thereof is similarly constituted by a second section 21 formed by stacking a plurality of second elements respectively having U-shaped channels 46 inside them and fins. The number of times the refrigerant fed into a thicknesswise one half portion on an inlet tank 47 side of the first section 20 is turned back in an opposite direction concerning a longitudinal direction of the first linear channels 34 inside this thicknesswise one half portion is made more numerous than the number of times the refrigerant fed into a thicknesswise other half portion on an outlet tank 52 side of the first section 20 is turned back in the opposite direction concerning the longitudinal direction of the second linear channels 35 inside this thicknesswise other half portion.

Abstract: An evaporator for conducting a heat exchanger between a refrigerant and ambient air including a plurality of refrigerant tubes, at least two header tanks in fluid communication with the plurality of refrigerant tubes and at least one of the heater tanks having a plurality of serrations through which refrigerant flows into each of the plurality of refrigerant tubes and a plurality of fins dispersed between each of the plurality of refrigerant 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: A heat exchanger for mounting in a supercharger is provided. The heat exchanger includes a body having a first end and a second end. A water bonnet is connectable with the first end of the body and includes an inlet, an outlet, an inner annulus, and an outer annulus. The inlet may be associated with one of the inner and outer annuluses and the outlet is associated with the other of the inner and outer annuluses.

Abstract: Disclosed herein is a heat exchanger in which a header in the heat exchanger is made of a material of plastic so that a regulator plate to define a passage of pipe can be formed freely. Also, not only a passage between pipes but also a passage between fine tubes in the same pipe can be formed. Accordingly, formation of a passage to accomplish maximal heat exchange efficiency is possible.

Abstract: A heat exchanger for exchange of heat between a first fluid and a second fluid comprises a stack of pockets (1) mutually aligned in a longitudinal direction and having two header boxes (16, 17) that are mutually juxtaposed in a lateral direction. The first fluid is injected into an upstream connecting channel (12) by a longitudinal nozzle (22) passing through a heat exchanger end face (5) remote from the upstream connecting channel, and at least one other connecting channel (14). This longitudinal nozzle has a cross section of oblong general shape, whose greatest dimension is parallel to the greatest dimension of the pockets. The heat exchanger may be produced particularly in the form of an evaporator for an air-conditioning device for the passenger compartment of a vehicle.

Abstract: A manifold for a heat exchanger comprising a tank, a plurality of tubes arranged to receive fluid therein, a plurality of fins for interspacing the tubes, the fins extending along the length of the tubes to thereby define a core section, wherein the header section is formed with multi-point brazing interfaces for securing said header and said core section during a brazing process. One embodiment provides at least one doubled wall area in close proximity to the tube slot areas to form a structure of increased strength, permitting the material to be reduced in relative thickness. The manifold may be formed from flat sheet stock by extended side walls of the header portion joined by a separate cap to close a top portion of the manifold assembly for the purpose of collecting fluid to and from the tubes and said at least one inlet and outlet.

Abstract: An overmolding insert includes a base having at least one opening in a first surface, the opening communicating with a second surface opposite the first surface, at least one hollow projection extending from the first surface, the hollow projection having a first opening communicating with the opening of the first surface and a second opening located at a terminal portion of the hollow projection, the insert further having two opposed side walls, each side wall being joined to the first surface, two opposed end walls being joined to an opposite end of the first surface and extending from one side wall to the other side wall. The side walls, the end walls, and the first surface define a partially closed space, with the terminal portion of the hollow projection extending beyond the partially closed space.

Abstract: The invention relates to a heat exchanger having a manifold plate structure. The heat exchanger comprises a first and a second manifold plate. The first and second manifold plates allow a refrigerant communication between an outside of the heat exchanger and another plate. The manifold plates together form a closed flat tube and each of the manifold plates has a pair of cup portions. The first manifold plate has a first slot and the second manifold plate has a second slot. The edge of the first slot has a projected burr portion. The first slot is configured for insertion into a slot of a first adjacent plate that is configured to be connected to the first manifold plate. The length and width of the first slot are less than the length and width of the second slot.

Abstract: A heat exchanger assembly for a vehicle comprising at least one manifold having walls defining a chamber for retaining fluid. A mounting device is secured to the wall of the manifold. The mounting device includes a seat portion adapted to receive a fluid transmission line. The mounting device further includes an opening extending from the seat portion and aligned with an aperture in the manifold for providing a fluid passageway between the manifold and the fluid transmission line. In addition, the mounting device includes at least one indentation formed therein for capturing contaminates and preventing an intrusion of the contaminates into the seat portion.

Abstract: This invention relates to a laminated heat exchanger, more particularly, which is constructed to close some of distribution channels in refrigerant distributing sections of tubes to uniformly distribute refrigerant into the tubes thereby improving refrigerant flow distribution. The laminated heat exchanger comprises a number of laminated tubes, a refrigerant inlet pipe, a refrigerant outlet pipe, a number of heat radiator fins and at least one of the tubes includes a pair of tanks, a refrigerant flow section for connecting the tanks via a partitioning bead formed between the tanks, refrigerant distribution sections provided at inlet and outlet sides of the refrigerant flow section and each having a plurality of distribution channels partitioned by at least one bead, and channel-restricting means provided in each of the refrigerant distribution sections, for restricting two outermost ones of the distribution channels.

Abstract: A heat exchanger including an array of tubes (10) mounted between two fluid boxes (28, 46) via respective manifolds (16) and designed to have a fluid run through. The tubes (10) include at least two channels separated by at least one longitudinal partition (78) and are arranged in a single row, parallel to the two large surfaces of the exchanger, such that the fluid circulation occurs in at least two layers parallel to the large surfaces of the exchanger and each formed by part of the tube channels. At least one of the fluid boxes (28, 46) includes an internal longitudinal partition (48, 68) dividing the fluid box into at least two longitudinal sections communicating with the two layers respectively. The invention is in particular applicable to air conditioning evaporators.

Abstract: At the refrigerant inlet/outlet side surface portion of laminated flat tubes, there is provided a first side refrigerant passage, and in the upper portion of the other side surface portion, there is provided a second side refrigerant passage, and in the lower portion thereof a third side refrigerant passage. A first partition portion is provided in first lower tank portions of the laminated flat tubes, and a second partition portion is provided in second upper tank portions. The first partition portion and the second partition portion respectively divide the laminated first lower tank portions and the second upper tank portions such that the ratio of the number of flat tubes on the refrigerant inlet/outlet side surface portion side, n4, to the number of flat tubes on the opposite side surface portion side, n3, is approximately 2:1.

Abstract: A heat exchanger tubing has one or more channels formed therein for fluid flow, with channel walls between the channels having openings extending between two opposing surfaces of the tubing. The channel walls are angled with respect to the opposing surfaces to increase the surface area of the openings. The tubing is tilted with respect to the headers in a heat exchanger assembly so that the openings in the tubing align with the direction of airflow passing over the heat exchanger. A heat exchanger assembly employing the tubing is effective without conventional fin stock, thus reducing the cost and manufacturing time when making the heat exchanger assemblies but without sacrificing heat exchange capability.

Abstract: An apparatus is disclosed for supporting and sealing a heat exchanger unit. Specifically, a unitary header and tank unit is disclosed comprising a condenser header and tank unit arranged in parallel relation to a radiator header and tank unit. The unitary header and tank unit is formed from a single piece of stamped material. The single piece of material is stamped to include a perpendicular extrusion and two base portions, each base portion being perforated. The partial separation of the perpendicular extrusion into two flange portions allows the base portions to be folded over onto the flange portions thereby forming two header and tank units with a single internal partition. Additionally, a fin unit is disclosed that is capable of traversing the heat exchange fins of multiple heat exchangers.

Abstract: A header construction intended for use in a heat exchanger (36) employed in a relatively high pressure application includes an array of generally parallel tube runs (84) with fins (82) extending between adjacent ones of the tube runs. At least one relatively flat header plate (86) has a plurality of tube slots (88) for receiving ends (90) of the tubes (84) and a tank (94) is mounted to and sealed to the header plate (86). Peripheral flanges (112) are located about tube slots (86) in the headers and a header reinforcing plate (114) is bonded to the header plate (86) oppositely of the tank (94). Stiffening beads in the form of flanges (120) are located on the header reinforcing plate (114) between openings (118) therein through which the tubes (84) pass and extend away from the header plate (86).

Abstract: A heat exchanger which is particularly useful as an evaporator has a first plurality of stacked plate pairs with cooling fins therebetween. A second plurality of stacked plate pairs is located adjacent to the first. Each plurality of plate pairs has enlarged plate end portions which together define flow manifolds. The first plate pairs have a first inlet manifold and a first outlet manifold. The second plate pairs have a second inlet manifold and second outlet manifold. The first outlet manifold is joined to communicate with the second outlet manifold. The second inlet manifold is joined to communicate with the first inlet manifold, but a barrier is located between the first and second inlet manifolds. The barrier has an orifice to permit a portion only of the flow in the first inlet manifold to pass into the second inlet manifold to produce a more uniform flow distribution inside the heat exchanger.

Abstract: A stack type heat exchanger includes a plurality of unit frames stacked on one another, each unit frame including a tube made by combining a pair of plates and forming a path for refrigerant and upper and lower tanks disposed at upper and lower ends of the tube, a radiation fin provided between the stacked tubes, an inlet pipe and an outlet pipe provided at one side of the unit frames through which refrigerant enters and is exhausted, a first burr formed in the lower tank to protrude in a direction opposite to a direction in which the refrigerant flows, and a second burr formed in the upper tank to protrude in the same direction as the direction in which the refrigerant flows.

Abstract: An evaporator for conducting a heat exchanger between a refrigerant and ambient air including a plurality of refrigerant tubes, at least two header tanks in fluid communication with the plurality of refrigerant tubes and at least one of the heater tanks having a plurality of serrations through which refrigerant flows into each of the plurality of refrigerant tubes and a plurality of fins dispersed between each of the plurality of refrigerant tubes.

Abstract: The invention recites a heat exchanger for the exchange of heat between an internal fluid and an external fluid comprising at least two heat exchange cells. Each heat exchange cell includes a first plate having an outer surface, raised peripheral edges, an inlet aperture, an outlet aperture, and a heat exchange area extending between the inlet aperture and the outlet aperture. Each cell further includes a second plate including raised peripheral edges, an inlet aperture, an outlet aperture, and a heat exchange area extending between the inlet aperture and the outlet aperture. The inlet aperture of the first plate is aligned with the inlet aperture of the second plate to define a cell inlet and the outlet aperture of the first plate is aligned with the outlet aperture of the second plate to define a cell outlet.

Abstract: A flat tube block heat exchanger with a plurality of flat tubes with deformed ends. The deformed ends have broad sides that have been deformed to expose the inner surface of the flat tubes. The exposed inner surfaces of the flat tubes are bonded to the exposed inner surface of an adjacent flat tube. The bonded inner surfaces of the adjacent flat tubes form a fluid barrier with tanks located at opposite ends of the flat tubes.