EP0656517A1 - Echangeur de chaleur eau-air en aluminium pour véhicules automobiles - Google Patents

Echangeur de chaleur eau-air en aluminium pour véhicules automobiles Download PDF

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Publication number
EP0656517A1
EP0656517A1 EP94118047A EP94118047A EP0656517A1 EP 0656517 A1 EP0656517 A1 EP 0656517A1 EP 94118047 A EP94118047 A EP 94118047A EP 94118047 A EP94118047 A EP 94118047A EP 0656517 A1 EP0656517 A1 EP 0656517A1
Authority
EP
European Patent Office
Prior art keywords
flat tubes
partition
water tank
tube sheet
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94118047A
Other languages
German (de)
English (en)
Other versions
EP0656517B1 (fr
Inventor
Roland Dipl.-Ing. Haussmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Klimatechnik GmbH and Co KG
Original Assignee
Thermal-Werke Warme- Kalte- Klimatechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE9318525U external-priority patent/DE9318525U1/de
Application filed by Thermal-Werke Warme- Kalte- Klimatechnik GmbH filed Critical Thermal-Werke Warme- Kalte- Klimatechnik GmbH
Priority to EP19940118047 priority Critical patent/EP0656517B1/fr
Publication of EP0656517A1 publication Critical patent/EP0656517A1/fr
Application granted granted Critical
Publication of EP0656517B1 publication Critical patent/EP0656517B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
    • F28F9/0217—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions the partitions being separate elements attached to header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/182—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding the heat-exchange conduits having ends with a particular shape, e.g. deformed; the heat-exchange conduits or end plates having supplementary joining means, e.g. abutments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0096—Radiators for space heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F2001/027—Tubular elements of cross-section which is non-circular with dimples

Definitions

  • the invention relates to a water / air heat exchanger made of aluminum or an aluminum alloy for motor vehicles, in particular to a heating heat exchanger or engine cooler, according to the identical preambles of claim 1 and claim 2.
  • the features of the first two paragraphs of the preamble are from DE-C2-34 40 489 in a radiator of a motor vehicle in a double flow arrangement known per se.
  • the features of the last third paragraph are also contained in the not previously published older European patent application with the applicant's file number 94 110 227.9.
  • the engine cooler has a cover made of plastic, which is tightly connected to an otherwise metallic radiator block via an elastic molded seal.
  • the tube plate of the water tank has collars facing outwards.
  • the flat tubes inserted into the slots in the tube sheet end flush with the flat surface of the tube sheet, which faces the interior of the water tank.
  • the partition in the water tank is also sealed against the partition walls separating the two floods in the flat tubes via the elastic molded seal.
  • Collars on the tube sheet pointing into the interior of a water box are also known per se from EP-A1-0 326 813, with a similar arrangement of the collars on the tube sheet of a heat exchanger.
  • A-23 20 866 also shows the possibility, as known per se, of turning the free end of a slot in the slits of a tube sheet of a water box over a collar pointing into its interior by more than 90 °.
  • the alloys AlMn1 or AlMgSi or Al99.5 are particularly suitable as aluminum alloys for such heat exchangers, the former two alloys preferably being used for pipes, water boxes and plates and the latter alloy preferably being used for zigzag fins.
  • Pipes and water boxes are appropriately pre-coated on both sides with hard solder AlSi7.
  • This solder coating is applied with flux, e.g. sprayed a sodium fluoride and potassium aluminum fluoride.
  • the soldering to the end product, which is protected according to the invention, is then carried out in a soldering furnace under protective gas without the addition of further solder to the precoating.
  • Water / air heat exchangers such as engine coolers or in particular heating heat exchangers, to which the invention is based in particular, are also heat exchangers which, in contrast to evaporators or condensers, are arranged in a cooling circuit within a motor vehicle.
  • a cooling circuit uses water or water with an anti-freeze additive such as glycol as the internal heat exchange medium.
  • the ambient air serves as the external heat exchange medium.
  • Such water / air heat exchangers for motor vehicles are thus operated at a relatively low internal pressure, specifically at an operating pressure of approximately 1.5 to at most 2 bar and an inlet pressure of in particular 4 bar.
  • evaporators and condensers of air conditioning systems in motor vehicles have a non-water-based coolant, for example the fluorochlorohydrocarbons now now considered to be environmentally harmful or now fluorocarbons, and must be designed for high internal operating pressures, such as typically operating pressures of about 25 bar and burst pressures of over 100 bar (e.g. 105 bar).
  • the design criteria of heat exchangers according to the invention and of evaporators and condensers in motor vehicles are therefore fundamentally different from the outset because of the different strength requirements.
  • water / air heat exchangers for motor vehicles are large-scale products, although a large motor vehicle manufacturer can already produce quantities of around half a million to well over one million per year in a single type of car. Large-scale products of this type therefore have the character of mass-produced items, in which small cost savings are of great importance in the context of the cost optimization that is always demanded from the motor vehicle manufacturers, especially since, within the scope of such optimization work, no compromises should be made with regard to the optimal functionality at the same time.
  • the water / air heat exchangers to which the invention relates are operated in cross-countercurrent. At least double-flow heat exchangers are required for such operation in cross-counterflow.
  • the heat exchanger according to DE-U1-88 16 980.4 should also be mentioned as a further two-flow known water / air heat exchanger made of light metal, in which, however, the Has manufactured flat tubes as extruded profiles. This requires a difficult and costly post-processing in order to partially remove the partition wall obtained in the manufacture in the area of communication between adjacent opposing floods.
  • the invention is based on the general task of optimizing a heat exchanger of the type described in the preambles of claims 1 and 2, both in terms of cost and function, with minimal use of material.
  • This also includes the special objective of being able to fully recycle the heat exchanger, including the lid of the water tank, as is now becoming increasingly mandatory in the automotive industry.
  • the invention is concerned with the task of further improving the tightness of a soldered connection between different areas of the heat exchanger, special attention being paid to the tightness between the inlet-side and outlet-side sections of the water tank and in its connection area to the flat tubes.
  • the tube plate of the water box is made as thin-walled as possible.
  • stresses build up in the tube sheet, which, when it is manufactured from light metal, in particular from aluminum and the alloys AlMn1 or AlMgSi or Al99.5, loses tension again during the soldering process, but becomes wavy in the process. This makes it difficult to solder the partition in the water tank tightly to the tube sheet, with tight communication with the openings of the individual flat tubes.
  • a corresponding, the tolerance compensation promoting connection of the partition in the water tank with its cover shows claim 7 in the event that the partition and cover consist of separate components.
  • An integral design of the cover and partition is generally also possible within the scope of the invention.
  • Claim 4 takes into account the fact that an optimal soldering of the partition with the collar takes place with direct soldering of these elements and not with the interposition of wall elements of the free ends of the flat tubes.
  • the slot-like design of the respective cutout in the flat tube is dimensioned accordingly, so that both the cutouts in the flat tube and the cutouts on the collar are dimensioned such that they can just encompass the partition of the water tank.
  • the reason of the recesses in the collar and the free end face of the respective partition in the flat tube no longer need to be adapted to each other at the level, so that in particular tolerances that result from warping of the tube sheet can be compensated for.
  • the slot-like cut-out on the respective flat tube prevents, due to its dimensioning, that the tightness in the collar area is not rendered ineffective by leaks in the area of the common plane of the partition of the water tank on the one hand and the plane through the partitions of the flat tubes on the other.
  • claim 6 provides such a wide design of the end-face soldering surfaces on the respective collar that without soldering a slot-like cut-out on the flat tube, the soldering of the partition of the water box on the one hand to the non-recessed partition walls of the flat tubes and on the other hand to the collar in the same Level level can be done on the front. This is usually sufficient, significantly simplifies the manufacturing effort and avoids having to deal with tolerance compensation of different levels of soldering levels in this area. It remains to be seen in what way the end wall sections of the free ends of the flat tubes, which protrude from the outside of the collars on the inside, are continued in the area outside the partition of the water tank if there is a cutout in the sense of claim 4 there. This is both a straight line Continuation and tipping of the free collar edge possible.
  • Claim 11 relates to a measure which, in the lightweight construction with low wall thickness of all parts used here, prevents the cover from collapsing during the soldering process, in particular on the two longitudinal sides in the transverse direction, and thereby also questioning the positioning of the partition, in particular, but not exclusively, especially in the design simplifying the design according to claim 7.
  • the invention is also concerned with the problem of optimal soldering conditions in the connection area of the ends of the flat tubes to the tube sheet.
  • a wedge-shaped soldering gap is to be reliably held on the outside of the tube sheet between this and the lateral surface of the flat tube.
  • a linear contact surface between the tube sheet and the tube is required, which does not break down during the soldering under thermal influences. Difficulties arise in particular in the case of thin wall thicknesses of modern flat tubes, with wall thicknesses of less than 0.5 mm, preferably of 0.35 mm but more than 0.2 mm, being particularly considered within the scope of the invention. Then even thin, thin-walled flat tube ends can still deform locally at the soldering temperatures in the soldering furnace (air temperature approx. 580 to 610 ° C for aluminum hard solder).
  • the known tulip-up of the free ends of the flat tubes protruding into the water tank is adopted and further developed such that a holding constraining force is additionally applied to the critical longitudinal sides of the free ends of the tulip-mounted flat tubes which holds the flattened flat sides of the flat tubes against falling.
  • a holding constraining force is additionally applied to the critical longitudinal sides of the free ends of the tulip-mounted flat tubes which holds the flattened flat sides of the flat tubes against falling.
  • at least the flat sides of the free ends of the flat tubes are reshaped so that they at least partially engage behind the collar of the tube base and are thus secured against inward movement in the direction of the free cross section of the respective flat tube.
  • Claim 12 provides instead, on two sides of the water tank, and in particular on its long sides, to be able to dispense with an additional groove formation and thus the corresponding shaping effort and, alternatively, to place a clamp connection between components already present from the start, namely the collar and the Side wall of the tube sheet. Even in this way, falling in of the lid of the water box during the soldering process can be counteracted become.
  • both the flat tubes open there are sealed at the free ends of the flat tubes which face away from the water tank and where the flow direction is reversed in the flat tubes as well as their final position fixing by means of an end plate using cast resin or solder.
  • the end plate each has a receiving groove for the respective free open end of a flat tube.
  • a continuous end plate is dispensed with, thereby already avoiding an expansion interaction between individual receiving grooves for the various flat tubes. It is sufficient to cut open dividing lines in a blank of an end plate made of aluminum or an aluminum alloy and to deform the strips formed only in this way by means of embossing dies into groove-like pockets. The sheet metal material pulls away to the side next to the original dividing lines and forms the side walls of the groove-shaped pockets. These suffer practically no strain deformation in their respective longitudinal directions.
  • Claims 16 to 18 relate to preferred production methods of the heat exchanger according to the invention, wherein Claims 16 and 17 on the one hand and Claim 18 on the other hand make the opposite choice between fixed and moving parts with the same relative movement of parts to be assembled.
  • Claims 16 and 17 on the one hand and Claim 18 on the other hand make the opposite choice between fixed and moving parts with the same relative movement of parts to be assembled.
  • the partition and according to claim 18 the community of flat tubes is moved in order to obtain the best possible mechanical connection condition between the partition of the water box on the one hand and the partition walls of the flat tubes on the other.
  • the more or less pronounced elasticity of previously created tulips on the free ends of the flat tubes engaging in the collars on the tube sheet is used to initially push in too far inserted flat tubes after pushing back into their installation position due to the permanent pre-tensioning of the tulips deformed when pushed back to fix the soldering process.
  • the partitions of the water tank and flat tubes which are joined at the end even after the soldering has been carried out. With this procedure, the partition of the water tank is only put on afterwards.
  • the partition of the water tank is initially mounted in the slots or grooves of the tube sheet, preferably with positive compression in the slots or grooves of the tube sheet. Then the individual flat tubes are pressed against the partition into their receiving slots in the tube plate with a given thrust, whereby a mutual compression between the partition of the water box on the one hand and the partition walls of the flat tubes on the other hand still occurs before the soldering, which remains after the soldering.
  • This pressing can be held by the previously described subsequent tipping of the free tube ends of the flat tubes around the collar until they are fixed by the soldering.
  • the press-in force of the flat tubes can take place, for example, via an actuating bar which is connected to each individual flat tube interacts via a strong compression spring.
  • pneumatic or hydraulic punches can be used, which preferably act individually on each flat tube to compensate for tolerances of the flat tube length.
  • the double-flow heat exchanger according to FIG. 1 has a series of parallel, in turn double-flow, flat tubes 2, the parallel flat sides of which lie opposite one another and nest zigzag fins 4 between them, which are also arranged on the outer flat sides of the outer flat tubes.
  • the zigzag fins 4 and the flat tubes 2 are soldered together to form a block in the finished heat exchanger by means of aluminum brazing solder, not shown.
  • a water box 6 is connected in a communicating manner with the flat tubes.
  • the water box consists of a tube sheet 8 and a cover 10, which in turn are soldered to one another by aluminum hard solder.
  • the zigzag fins and the other components described below consist of aluminum or an aluminum alloy, so that the entire heat exchanger consists essentially of aluminum.
  • the tube sheet in the exemplary embodiment, only one water tank 6 is provided.
  • the tube sheet as shown in FIG. 7, has parallel slots 12, which are each provided with collars 14 pointing into the water tank 6.
  • the tube sheet consists of an aluminum sheet with a thickness of, for example, 1.2 mm. This sheet is cut at the locations of the slots. The edges of the cuts are then bent up to the collar 14, as shown in Fig. 9.
  • the ends of the double-flow flat tubes 2 are inserted into their respective slots 12 to such an extent that free ends 16 of the flat tubes protrude beyond the collar 14.
  • the free ends 16 are sculpted.
  • the tulips 18 are so far around on the two longitudinal sides of the respective slot 12 around the respective collar 14 that the respective collar is encompassed by more than 90 ° to such an extent that an undercut effect is achieved and a defined, extended soldering gap is formed between the bent-back tulip 18 and the collar 14.
  • the free end 16 is folded around the collar 14 of the tube sheet 8 only in the region of the long sides of the flat tube 2 by more than 90 °.
  • the remaining areas of the flat tube end 16 lie linearly on the collar 14 of the tube sheet.
  • the tube sheet 8 is box-shaped with a circumferential side wall 24.
  • the lid 10 of the water box 6 is inserted and soldered to the aluminum braze in a manner not shown.
  • the lid 10 carries a partition 30 which divides the water tank 6 into two sections. One communicates with the inlet 32 and the other with the outlet 34 of the water as an internal heat exchange fluid.
  • the flat tubes 2 are in the middle provided with a partition 36, which is arranged in the same plane as the partition 30 in the water tank.
  • the partition walls 36 divide the respective flat tube 2 into two parallel channels 38, in which the inner heat exchanger fluid flows in countercurrent in accordance with the direction of flow indicated by arrows at the connections 32 and 34.
  • This connection in counterflow is a double-flow flat tube 2.
  • the flow is diverted at the ends of the flat tubes facing away from the water tank 6 in that the two channels and thus the adjacent floods communicate there without throttling.
  • the partition wall 36 is omitted in this connection region 40 over such a length that the cross section of one channel 38 is transferred unthrottled to that of the other channel 38.
  • the other ends of the flat tubes 2 facing away from the water tank 6 engage openly in grooves 42 of an end plate 44 parallel to the tube plate 8, where they also are soldered by aluminum braze.
  • the end plate 44 therefore forms the flow closure of these ends of the flat tubes 2.
  • the end plate 44 holds the flat tubes in the same manner as the slots 12 on the tube plate 8, in the prescribed, generally equidistant, division.
  • the end plate 44 can also serve to mount the entire heat exchanger on a supporting part of the motor vehicle.
  • a side plate 46 which in turn runs parallel to the flat tubes 2, adjoins the outer zigzag fins 4.
  • Each of these two side plates 46 has pawls 48 and 50 which engage in the water tank 6 and in the end plate 44.
  • the extensions 48 and 50 can be tab-like extensions as shown in FIG. 1.
  • An arrow 56 in FIG. 1 shows the direction of flow of the air, to which the water in the two channels 38 inside the flat tubes 2 is double-flow and thus in countercurrent flow.
  • the groove 72 which is arranged between the slots 12 in the tube sheet 8 and into which the partition 30 engages with tolerance acceptance, can be seen.
  • the partition 30 extends in a recess 74 of the collar 14. It is not absolutely necessary that the partition rests on the base 76 of the recess 74 in the collar 14, but it is a slight one for reasons of tolerance Distance allowed. In any case, however, the partition 30 must rest on the base 70 in the slot-like cutout 68 of the tube 2.
  • the tube end 16 is first positioned in the collar 14 by the tulip 18 such that the base 70 of the slot-like cutout 68 in the tube end 14 is arranged higher than the base 76 of the recess 74 in the collar 14.
  • the base 70 of each flat tube end 16 is pressed through the partition wall 30, the elastic counterforce being caused by the overturning 18 of the free surface which has occurred by more than 90 ° Pipe end 16 is built. This becomes particularly clear from FIG. 9.
  • the partition 30 of the water box 10 already engages with tongues 102 between the collars 14 in grooves 72 in the tube sheet 8, as can be seen particularly clearly on the basis of FIGS. 8 and 9.
  • the tongues 102 can also be seen in FIGS. 1 and 2 and the grooves 72 in FIG. 4.
  • slots 100 in the tube sheet 8 can replace the grooves 72, as can be seen particularly clearly in FIG. 4a.
  • the depth of engagement of the tongues 102 is not restricted. Rather, if necessary, these can even extend fully through the tube sheet 8 into an area outside the water tank 6, where they are shielded from the outside by the zigzag fins 4.
  • a conical inlet of the tongues 102 can be seen from both FIG. 2 and FIG. 5, where the side flanks of the tongues 102 each have a bevel 103.
  • the tongues 102 themselves are also expediently tapered in their transverse direction, in that they taper towards the main body of the partition wall 30.
  • a very small inlet angle of at most one or two degrees is required in the actual pressing area of the tongues 102, if at all, since the respective tongue in the pressing area is inserted into the groove 72 or can press the slot 100.
  • a more conical tapering area at the free ends of the tongues 102, which serves in particular as an insertion aid, is shown.
  • a corresponding groove 82a according to FIG. 5 can only be used on the end faces to join the tube plate 8 and cover 10 of the water tank 6 maintain the water box 6 and instead, completely dispense with such a groove on the longitudinal sides thereof and provide for the side wall of the cover 10 to be clamped between the side wall 24 of the tube sheet and the collar 14 arranged close to the circumference in the tube sheet 8, as shown in FIG. 6a. 6a, the pot-shaped side wall 24 of the tube sheet is provided with retaining tabs 108, which are initially arranged parallel to the side wall of the cover 10 and then for mounting with their free ends according to FIG. 6a be bent over a shoulder 110 of the side wall of the cover 10.
  • the partition 30 is also inserted into a slot 100 in the tube sheet 8, just as in Fig. 5, here so far that the partition clearly through this slot out of the water tank 6 towards the outside Package of the flat tubes 2 together with their zigzag fins 4 protrudes, the protruding end being covered from outside by the zigzag fins 4.
  • FIG. 4a shows that, in contrast to the embodiment described with reference to Fig. 4, in which 8 slot-like recesses 74 are provided in the collar 14 of the tube sheet, simplification of the design can be done entirely without such recesses, so that then slot-shaped cutouts 68 in the flat tube 2 according to FIG. 4 can be omitted.
  • FIG. 4a provides for blunt application and welding of the end faces of the partition wall 30 of the water tank on the one hand and the partition walls 36 of the flat tubes 2 on the other hand. Accordingly, in FIG. 4 a, the contact surfaces 104 of the collars 14 on the partition 30 are located at the same level as not only the adjacent connecting surfaces of the collars 14, but even their entire end surface.
  • the tulips 18 are arranged so far away between the connecting surfaces of the collar 14 with the partition 30 of the water tank that the cutout 106 remaining here at the respective free end of the flat tube it is wide that it can hardly be called a slot-like and the width of the cutout 106 no longer corresponds to the thickness of the partition 30 as in the case of the slot-like cutouts 68 in the flat tube 2.
  • an end plate 44 which, like the other heat exchanger, consists of aluminum or an aluminum alloy and is also made of sheet metal from this material.
  • the end plate according to FIGS. 10 and 11 is no longer connected in a flat manner.
  • the individual U-shaped pockets 112, into which the open end of a flat tube 2 engages on the side facing away from the water tank 6 for sealing and mounting purposes, are rather only kept parallel at a distance from one another via connecting webs 114. From Fig. 10 it can be seen that the connecting webs 114 are supplemented at their ends to form a peripheral frame.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP19940118047 1993-12-03 1994-11-15 Echangeur de chaleur eau-air en aluminium pour véhicules automobiles Expired - Lifetime EP0656517B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19940118047 EP0656517B1 (fr) 1993-12-03 1994-11-15 Echangeur de chaleur eau-air en aluminium pour véhicules automobiles

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9318525U 1993-12-03
DE9318525U DE9318525U1 (de) 1993-12-03 1993-12-03 Wasser/Luft-Wärmetauscher aus Aluminium für Kraftfahrzeuge
EP19940118047 EP0656517B1 (fr) 1993-12-03 1994-11-15 Echangeur de chaleur eau-air en aluminium pour véhicules automobiles

Publications (2)

Publication Number Publication Date
EP0656517A1 true EP0656517A1 (fr) 1995-06-07
EP0656517B1 EP0656517B1 (fr) 1999-02-10

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998050749A1 (fr) 1997-05-07 1998-11-12 Valeo Klimatechnik Gmbh & Co. Kg Echangeur de chaleur a tubes aplatis retenus sur des collets d'un fond a tubes pour vehicules a moteur
DE19752139A1 (de) * 1997-11-25 1999-05-27 Behr Gmbh & Co Wärmeübertrager für ein Kraftfahrzeug
DE19819247A1 (de) * 1998-04-29 1999-11-11 Valeo Klimatech Gmbh & Co Kg Wärmetauscher für Kraftfahrzeuge, insbesondere Wasser/Luft-Wärmetauscher oder Verdampfer
EP0958953A1 (fr) * 1998-05-20 1999-11-24 MAGNETI MARELLI CLIMATIZZAZIONE S.p.A. Condenseur pour véhicules avec un distributeur avec boíte à fluide et plaque de fond
DE10243416A1 (de) * 2002-09-18 2004-04-01 Behr Gmbh & Co. Wärmeübertrager, insbesondere Verdampfer
DE10255487A1 (de) * 2002-11-27 2004-06-09 Behr Gmbh & Co. Kg Wärmeübertrager
DE10259026A1 (de) * 2002-12-16 2004-06-24 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Kühlmittelkühler
WO2005085738A1 (fr) * 2004-03-05 2005-09-15 Behr Gmbh & Co. Kg Dispositif d'echange de chaleur et procede de fabrication
WO2005119155A1 (fr) * 2004-06-04 2005-12-15 Behr Gmbh & Co. Kg Echangeur de chaleur
EP1298401A3 (fr) * 2001-09-29 2005-12-28 Halla Climate Control Corporation Echangeur de chaleur
EP1731864A1 (fr) * 2005-06-11 2006-12-13 Modine Manufacturing Company Echangeur de chaleur métallique et procédé de fabrication de celui-ci
WO2006133748A1 (fr) * 2005-06-11 2006-12-21 Modine Manufacturing Company Echangeur thermique integralement metallique et procede de fabrication associe
CN101975519A (zh) * 2010-10-30 2011-02-16 芜湖博耐尔汽车电气系统有限公司 一种汽车空调用平行流式加热器芯体
DE102009037305A1 (de) * 2009-08-14 2011-03-03 Behr Gmbh & Co. Kg Wärmeübertrager
CN102003912A (zh) * 2010-12-02 2011-04-06 深圳市金洲精工科技股份有限公司 集流管、使用此集流管的平行流蒸发器及加工方法
DE102009055931A1 (de) * 2009-11-27 2011-06-01 Pierburg Gmbh Wärmeübertragungsvorrichtung sowie Wärmeübertragungsvorproduktanordnung und Verfahren zur Herstellung einer derartigen Wärmeübertragungsvorrichtung
DE102009057175A1 (de) * 2009-12-05 2011-06-09 Volkswagen Ag Wärmetauscher
DE102010053478A1 (de) 2010-12-04 2012-06-06 Modine Manufacturing Co. Wärmeübertrager und Herstellungsverfahren
EP2026028A3 (fr) * 2001-12-21 2012-06-20 Behr GmbH & Co. KG Échangeur de chaleur, en particulier pour véhicule automobile
EP1462754A3 (fr) * 2003-03-27 2013-02-27 Calsonic Kansei Corporation Faisceau d'échangeur de chaleur
US8844504B2 (en) 2010-03-18 2014-09-30 Modine Manufacturing Company Heat exchanger and method of manufacturing the same
US9089890B2 (en) * 2004-12-03 2015-07-28 MAHLE Behr GmbH & Co. KG Method for the production of a heat exchanger
DE102015202765A1 (de) * 2015-02-16 2016-08-18 Mahle International Gmbh Wärmeübertrager
DE102016218088A1 (de) 2016-09-21 2018-03-22 Mahle International Gmbh Wärmeübertrager
CN108735516A (zh) * 2018-04-17 2018-11-02 上海展枭新能源科技有限公司 一种锂离子电容水冷循环系统及其控制方法
WO2019015952A1 (fr) * 2017-07-20 2019-01-24 Valeo Systemes Thermiques Échangeur de chaleur pour refroidisseur d'air de suralimentation
US20210207535A1 (en) * 2020-01-03 2021-07-08 Raytheon Technologies Corporation Aircraft Heat Exchanger Panel Array Interconnection
US11885573B2 (en) 2020-02-07 2024-01-30 Rtx Corporation Aircraft heat exchanger panel attachment
US11898809B2 (en) 2020-01-19 2024-02-13 Rtx Corporation Aircraft heat exchanger finned plate manufacture
US11920517B2 (en) 2020-01-03 2024-03-05 Rtx Corporation Aircraft bypass duct heat exchanger
US11982232B2 (en) 2020-01-20 2024-05-14 Rtx Corporation Aircraft heat exchangers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9309839B2 (en) 2010-03-18 2016-04-12 Modine Manufacturing Company Heat exchanger and method of manufacturing the same
DE102012109493B4 (de) * 2012-10-05 2016-11-17 Freimut Joachim Marold Verfahren zur Herstellung einer Wärmetauschereinrichtung
DE102012109541A1 (de) * 2012-10-08 2014-04-10 Kempchen Dichtungstechnik Gmbh Trennblechdichtung für einen Wärmetauscher

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DE3440489A1 (de) * 1984-11-06 1986-05-07 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Kuehler, insbesondere fuer die kuehlanlage eines verbrennungsmotors eines kraftfahrzeuges
EP0270433A1 (fr) * 1986-11-20 1988-06-08 Valeo Chausson Thermique Echangeur de chaleur à boîte à fluide munie de cloison
US5190101A (en) * 1991-12-16 1993-03-02 Ford Motor Company Heat exchanger manifold

Patent Citations (3)

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DE3440489A1 (de) * 1984-11-06 1986-05-07 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Kuehler, insbesondere fuer die kuehlanlage eines verbrennungsmotors eines kraftfahrzeuges
EP0270433A1 (fr) * 1986-11-20 1988-06-08 Valeo Chausson Thermique Echangeur de chaleur à boîte à fluide munie de cloison
US5190101A (en) * 1991-12-16 1993-03-02 Ford Motor Company Heat exchanger manifold

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19719259B4 (de) * 1997-05-07 2005-08-18 Valeo Klimatechnik Gmbh & Co. Kg Flachrohrwärmetauscher für Kraftfahrzeuge mit an Krägen eines Rohrbodens gehaltenen Flachrohren
DE19719259A1 (de) * 1997-05-07 1998-11-12 Valeo Klimatech Gmbh & Co Kg Flachrohrwärmetauscher für Kraftfahrzeuge mit an Krägen eines Rohrbodens gehaltenen Flachrohren
US6142217A (en) * 1997-05-07 2000-11-07 Valeo Klimatechnik Gmbh & Co., Kg Motor vehicle flat tube heat exchanger with flat tubes retained on collars of a tube bottom
WO1998050749A1 (fr) 1997-05-07 1998-11-12 Valeo Klimatechnik Gmbh & Co. Kg Echangeur de chaleur a tubes aplatis retenus sur des collets d'un fond a tubes pour vehicules a moteur
DE19752139A1 (de) * 1997-11-25 1999-05-27 Behr Gmbh & Co Wärmeübertrager für ein Kraftfahrzeug
FR2771483A1 (fr) * 1997-11-25 1999-05-28 Behr Gmbh & Co Echangeur de chaleur pour vehicules automobiles
US6202741B1 (en) 1997-11-25 2001-03-20 Behr Gmbh & Co. Heat transfer device for a motor vehicle and method of making same
DE19752139B4 (de) * 1997-11-25 2004-06-03 Behr Gmbh & Co. Wärmeübertrager für ein Kraftfahrzeug
DE19819247A1 (de) * 1998-04-29 1999-11-11 Valeo Klimatech Gmbh & Co Kg Wärmetauscher für Kraftfahrzeuge, insbesondere Wasser/Luft-Wärmetauscher oder Verdampfer
EP0958953A1 (fr) * 1998-05-20 1999-11-24 MAGNETI MARELLI CLIMATIZZAZIONE S.p.A. Condenseur pour véhicules avec un distributeur avec boíte à fluide et plaque de fond
EP1298401A3 (fr) * 2001-09-29 2005-12-28 Halla Climate Control Corporation Echangeur de chaleur
EP2026028A3 (fr) * 2001-12-21 2012-06-20 Behr GmbH & Co. KG Échangeur de chaleur, en particulier pour véhicule automobile
US8590607B2 (en) 2001-12-21 2013-11-26 Behr Gmbh & Co. Kg Heat exchanger for a motor vehicle
DE10243416A1 (de) * 2002-09-18 2004-04-01 Behr Gmbh & Co. Wärmeübertrager, insbesondere Verdampfer
DE10255487A1 (de) * 2002-11-27 2004-06-09 Behr Gmbh & Co. Kg Wärmeübertrager
DE10259026A1 (de) * 2002-12-16 2004-06-24 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Kühlmittelkühler
EP1462754A3 (fr) * 2003-03-27 2013-02-27 Calsonic Kansei Corporation Faisceau d'échangeur de chaleur
WO2005085738A1 (fr) * 2004-03-05 2005-09-15 Behr Gmbh & Co. Kg Dispositif d'echange de chaleur et procede de fabrication
US7600560B2 (en) 2004-03-05 2009-10-13 Behr Gmbh & Co. Kg Device for replacing heat and method for the production thereof
WO2005119155A1 (fr) * 2004-06-04 2005-12-15 Behr Gmbh & Co. Kg Echangeur de chaleur
JP2008501923A (ja) * 2004-06-04 2008-01-24 ベール ゲーエムベーハー ウント コー カーゲー 熱交換器
US9089890B2 (en) * 2004-12-03 2015-07-28 MAHLE Behr GmbH & Co. KG Method for the production of a heat exchanger
WO2006133748A1 (fr) * 2005-06-11 2006-12-21 Modine Manufacturing Company Echangeur thermique integralement metallique et procede de fabrication associe
EP1731864A1 (fr) * 2005-06-11 2006-12-13 Modine Manufacturing Company Echangeur de chaleur métallique et procédé de fabrication de celui-ci
DE102009037305A1 (de) * 2009-08-14 2011-03-03 Behr Gmbh & Co. Kg Wärmeübertrager
DE102009055931A1 (de) * 2009-11-27 2011-06-01 Pierburg Gmbh Wärmeübertragungsvorrichtung sowie Wärmeübertragungsvorproduktanordnung und Verfahren zur Herstellung einer derartigen Wärmeübertragungsvorrichtung
DE102009057175A1 (de) * 2009-12-05 2011-06-09 Volkswagen Ag Wärmetauscher
US8844504B2 (en) 2010-03-18 2014-09-30 Modine Manufacturing Company Heat exchanger and method of manufacturing the same
CN101975519A (zh) * 2010-10-30 2011-02-16 芜湖博耐尔汽车电气系统有限公司 一种汽车空调用平行流式加热器芯体
CN102003912A (zh) * 2010-12-02 2011-04-06 深圳市金洲精工科技股份有限公司 集流管、使用此集流管的平行流蒸发器及加工方法
DE102010053478B4 (de) 2010-12-04 2018-05-30 Modine Manufacturing Co. Wärmeübertrager und Herstellungsverfahren für Wärmeübertrager
DE102010053478A1 (de) 2010-12-04 2012-06-06 Modine Manufacturing Co. Wärmeübertrager und Herstellungsverfahren
DE102015202765A1 (de) * 2015-02-16 2016-08-18 Mahle International Gmbh Wärmeübertrager
DE102016218088A1 (de) 2016-09-21 2018-03-22 Mahle International Gmbh Wärmeübertrager
WO2019015952A1 (fr) * 2017-07-20 2019-01-24 Valeo Systemes Thermiques Échangeur de chaleur pour refroidisseur d'air de suralimentation
FR3069312A1 (fr) * 2017-07-20 2019-01-25 Valeo Systemes Thermiques Echangeur de chaleur pour refroidisseur d'air de suralimentation
CN108735516A (zh) * 2018-04-17 2018-11-02 上海展枭新能源科技有限公司 一种锂离子电容水冷循环系统及其控制方法
US20210207535A1 (en) * 2020-01-03 2021-07-08 Raytheon Technologies Corporation Aircraft Heat Exchanger Panel Array Interconnection
US11920517B2 (en) 2020-01-03 2024-03-05 Rtx Corporation Aircraft bypass duct heat exchanger
US11898809B2 (en) 2020-01-19 2024-02-13 Rtx Corporation Aircraft heat exchanger finned plate manufacture
US11982232B2 (en) 2020-01-20 2024-05-14 Rtx Corporation Aircraft heat exchangers
US11885573B2 (en) 2020-02-07 2024-01-30 Rtx Corporation Aircraft heat exchanger panel attachment

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