EP0564761B1 - Heat exchanger, more particularly cooler, e.q. oil cooler - Google Patents

Heat exchanger, more particularly cooler, e.q. oil cooler Download PDF

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Publication number
EP0564761B1
EP0564761B1 EP93100595A EP93100595A EP0564761B1 EP 0564761 B1 EP0564761 B1 EP 0564761B1 EP 93100595 A EP93100595 A EP 93100595A EP 93100595 A EP93100595 A EP 93100595A EP 0564761 B1 EP0564761 B1 EP 0564761B1
Authority
EP
European Patent Office
Prior art keywords
collector
slot
heat exchanger
exchanger according
wall
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.)
Revoked
Application number
EP93100595A
Other languages
German (de)
French (fr)
Other versions
EP0564761A3 (en
EP0564761A2 (en
Inventor
Viktor Dipl.-Ing. Brost (Fh)
Manfred Schützle
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.)
Laengerer and Reich GmbH and Co
Original Assignee
Laengerer and Reich GmbH and Co
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
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Application filed by Laengerer and Reich GmbH and Co filed Critical Laengerer and Reich GmbH and Co
Publication of EP0564761A2 publication Critical patent/EP0564761A2/en
Publication of EP0564761A3 publication Critical patent/EP0564761A3/en
Application granted granted Critical
Publication of EP0564761B1 publication Critical patent/EP0564761B1/en
Anticipated expiration legal-status Critical
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/04Heat-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
    • F28D1/053Heat-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
    • F28D1/0535Heat-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
    • F28D1/05366Assemblies of conduits connected to common headers, e.g. core type radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/0202Header boxes having their inner space divided by partitions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/0243Header boxes having a circular cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/0246Arrangements for connecting header boxes with flow lines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/04Arrangements for sealing elements into header boxes or end plates
    • F28F9/16Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00Closure means, e.g. end caps on header boxes or plugs on conduits

Definitions

  • the invention relates to a heat exchanger, particularly a cooler, e.g. Oil cooler, of the type defined in the preamble of claim 1.
  • a heat exchanger particularly a cooler, e.g. Oil cooler, of the type defined in the preamble of claim 1.
  • Heat exchangers of this type are known (WO 84/01208), in which the collectors consist of cylinder tubes and the partitions are designed as circular caps adapted to the inside diameter of the tubes, which are pushed into the tubes in the axial direction and connected to them by soldering.
  • These closure elements which are attached with their outer circumferential surface to the inner surface of the tube wall by soldering, have a large axial width.
  • Such is at least with regard to the outer circumferential surface due to the soldering fixation necessary so that a firm load-bearing connection can be made by soldering, because the surface of the end closure elements are under the pressure of the medium prevailing in the heat exchanger and are particularly large at high medium pressure Forces loaded that stress the soldering of the end closure elements especially on shear.
  • the contact surfaces must be of the end closure elements are dimensioned as large as possible, which, if the diameter is predetermined by that of the header tubes and cannot be increased, must be realized by a correspondingly large dimension in the axial direction.
  • Such relatively wide end closure elements within the tubular collector mean that the latter are dimensioned correspondingly long and with correspondingly long end sections protrude on both sides beyond the area of the heat exchanger network. This not only requires more material but also leads to a larger space requirement for the heat exchanger. Manufacturing problems also arise; the end closure elements to be inserted into the tubes are difficult to position at the point, and this is reproducible, to which they are to be attached by soldering.
  • the invention is based on the object of designing a heat exchanger, in particular a cooler, for example an oil cooler, of the type mentioned in the preamble of claim 1, that the closure elements can be introduced quickly and easily at the same reproducible location and can be designed to save space.
  • a heat exchanger in particular a cooler, for example an oil cooler, of the type defined in the preamble of claim 1 by the features in the characterizing part of claim 1.
  • a heat exchanger in particular a cooler, for example an oil cooler
  • relatively thin cross-sectional walls can be used which - viewed in the longitudinal direction of the respective collector - require little space, so that in the area of the appropriately designed end closure element, the collectors can be kept shorter. This leads to material, cost and weight savings.
  • respective target positions for positioning and holding the partitions are specified.
  • the partitions are thus reproducibly positioned and fixed by the slots.
  • the slots form visible assembly points and also act as guides when inserting the partitions.
  • the partition walls themselves can be designed as thin slices, which are therefore simple and inexpensive.
  • the insertion of the partitions into the slots is also quick and easy and therefore inexpensive to do.
  • the slot width and the cross-sectional thickness of the partition can be dimensionally coordinated so that the partitions inserted into the slots are held in place after insertion, so that no additional securing means are needed to keep the partitions in place, for example when transporting the heat exchanger assembled from individual components in a soldering bath or a heat treatment furnace, in order to store all components in one soldering process to connect by soldering.
  • each partition is held in a form-fitting manner in the slot and forces acting on the partition are thus positively absorbed by the collector and a solder connection is relieved of these forces.
  • the end regions of the collectors do not necessarily have to be accurate in shape outside the end closure by means of the respective partition walls and also do not have to end cleanly on the end face. The end sections projecting beyond the outer surface of the partition therefore do not require any special processing or attention.
  • these end sections of the collectors projecting beyond the outer surface of the end partition walls are freely available for other designs and tasks.
  • these end sections can be used to hold or secure the heat exchanger at the mounting location. Any connecting means can also be attached to these end regions, for example in order to connect other components to the heat exchanger or to connect the latter to other components.
  • the protruding end sections can also be used to form reference surfaces which always ensure reproducible mounting of tubular collectors in the circumferential direction at the same place, which has advantages, for example, when assembling individual elements of the heat exchanger. This can be an advantage even in the production of the collectors.
  • the slots in the collectors required for the partitions to be used can be produced quickly and easily, for example simultaneously with the other slots in which the tubes of the heat exchanger network are received and fastened with their opposite ends.
  • the end sections of the collectors projecting beyond the outer surface of the end partitions can also be used, for example, for attaching side parts which each terminate the heat exchanger network at the side. Also for these end sections can be used advantageously for other purposes.
  • Partition plates which can be inserted into and secured in slots of the collector and which are introduced at a suitable point between collectors which are closed at the ends are known for dividing the interior of the collector and for forming a multi-flow heat exchanger (EP-A-360 362), but each collector on one End is closed by means of a conventional end stopper plug as a closure element and at the opposite end of the same collector, the supply for the medium or discharge of the medium takes place.
  • FIGS. 1 to 4 show a first exemplary embodiment of a heat exchanger 10, which is designed in particular as a cooler, for example an oil cooler, water cooler or the like, but instead can equally well be in the form of a heat exchanger, condenser or the like.
  • the heat exchanger 10 has two approximately tubular collectors 11 and 12 which are arranged at a transverse distance from one another and, for example, run approximately parallel to one another. At least one of the collectors 11 and 12 consists of a round, for example circularly cylindrical tube.
  • both collectors 11 and 12 each consist of a circular cylindrical tube 13 or 14 with a cylindrical one Collector wall 15 or 16.
  • the collectors 11, 12 instead consist of oval tubes, flat tubes or the like.
  • Pipes 17 run between the collectors 11 and 12, which e.g. are designed as flat tubes, only the right tube 17a and left tube 17b in FIG. 1, which also forms the lateral closure, has a cross-sectional dimension that differs from the other tubes 17, in particular, as can be seen, is dimensioned larger in cross-section.
  • the pipe 17a on the right in FIG. 1 can be used for the supply of a medium which is to be cooled in the design as a cooler and which is fed in the lower end region of the pipe 17a, as illustrated by the arrow 18 there.
  • the pipe 17b running on the left in Fig. 1 can e.g. serve as a bridging line, which in certain operating states e.g. is opened by means of a valve, not shown, and connects the two collectors 11 and 12 by bridging the tubes 17.
  • All tubes 17, 17a and 17b are connected at their opposite ends to an associated collector 11, 12, so that the interior of the tubes 17, 17a, 17b is connected to the interior 19 and 20 of each collector 11, 12 and a medium, which is introduced, for example, in the region of the arrow 18 into the tube 17a on the right in FIG. 1 and above it is fed to the collector 11 arranged at the top in FIG. 1, as shown, or in another embodiment, not shown, instead instead multi-flow, the interior 19 of this collector 11, the interior of the tubes 17 or in the case of bridging operation of the tube 17b and the interior 20 of the header 12 can flow through, as shown in Fig. 1 by arrows.
  • the right tube 17a used here for supplying the medium is passed through and out of the collector 12 in the lower end region, so that the supply according to arrow 18 can be carried out in a simple manner.
  • the interior 20 of the collector 12 is not connected to the interior of the tube 17a in this area.
  • the collectors 11 and 12 are closed as required in the area of one end or both ends by means of closure elements 21 and 22, respectively.
  • the upper collector 11 in FIG. 1 is closed in the area of both ends with a closure element 21, which has already been introduced in the area of the right end and has not yet been used for clarification in the area of the left end.
  • the lower collector 12 in FIG. 1 is likewise closed in the region of both ends by means of a closure element 22, the end on the right in FIG. 1 already being closed here, while the similar closure element 22 has not yet been introduced at the end on the left is shown. This provides a better overview.
  • each collector 11 or 12 in the region of both ends, as shown in FIG. 1, or in a modified form, for example only in the region of one end a respective closure element 21 or 22 is provided. If, for example, the medium is to be fed in at the top right-hand end of the collector 11 in FIG. 1 and approximately coaxially with the pipe, the closure element 21 is not required in this end region and instead the supply connection for the medium is there appropriate. Then the collector 11 is closed only at the left end in FIG. 1 by means of a closure element 21. The same procedure is followed with respect to the other collector 12 if, for example, the medium is to be discharged in the area of one end and approximately coaxially with the pipe run.
  • closure elements 21 and 22 in the first embodiment in FIG. 4 are all of the same design, which is why further details are explained below in particular with reference to FIGS. 3 and 4 and the closure element 22 there.
  • the respective closure element 21, 22 is formed from a partition 23, which is designed in particular as a disc.
  • the cross-sectional thickness of the partition 23, in particular the pane can roughly correspond to the cross-sectional thickness of the collector wall 15 or 16. In any case, the cross-section of the partition 23, in particular the pane, does not have to be larger than that of the collector wall 15 or 16, but the cross-section can, depending on the circumstances, be even smaller than that of the collector wall 15 or 16.
  • the respective partition 23, in particular a pane is fixed in the respective collector 11, 12 in particular by soldering, e.g. Soft soldering or brazing.
  • the respective partition 23, in particular the pane is in the respective collector 11 or 12 through a respectively assigned slot 25 in the collector 11 or slot 26 in the collector 12 in the collector 11 or 12 in the direction of the one on the left in FIG. 1 indicated arrows transversely to the longitudinal course of the collector 11, 12 inserted and fastened in this.
  • the respective partition 23, in particular the pane is thus introduced and is effective like a sword.
  • the respective slot 25 or 26 is located at a certain distance from the respective end of the collector 11 or 12, So that when the closure element 21 or 22 is inserted into the respective slot 25 or 26, in particular a disk-shaped partition 23, an end section 27 or 28 of the respective collector 11 or 12 protruding from there remains, which is connected to the interior 19 or 20 protrudes away from the outer surface of the partition 23, in particular the washer.
  • this protruding end section 27 or 28 can still be used in a variety of ways if this is desired.
  • the respective end section 27 or 28 is in any case free and accessible for any desired design. For example, as illustrated in FIGS. 1 to 4, it can be unlatched in order to meet special requirements.
  • the notch creates, for example, reference surfaces that make it possible to reproducibly align the round tubular collectors 11, 12 in the circumferential direction with respect to any stop parts in relation to their longitudinal axis, for example for assembly, for assembly, etc.
  • the notches can also be used for other purposes to be useful.
  • Other configurations of the end sections 27, 28 are also possible. These can also be used, for example, for connecting other parts, for fastening the heat exchanger 10 or for attaching further parts to the latter, it being possible to intervene in the interior of each end section 27, 28, which is open towards the end, for example axially with appropriate means, and also transversely thereto , for example through slots, bores or the like, which are provided in the end section 27 or 28.
  • each collector 11 or 12 due to the closure of the interior 19, 20 of each collector 11 or 12 by the respective partition 23, in particular a pane, a very small space, measured in the axial direction of each collector 11, 12, is required.
  • the length dimension of each collector 11, 12 therefore does not have to be chosen larger than in previously known designs in this form of end closure by means of the partition wall 23, in particular a washer, with the end sections 27, 28 being additionally added wins and the width of the heat exchanger network, measured from tube 17a to tube 17b, does not have to be reduced thereby.
  • the described manner of closing the interior 19, 20 of each collector 11 or 12 has the further advantage that the ends of the collector 11, 12, which are spaced from the respective slot 25 or 26, do not have to be cut off and machined exactly , since such is not necessary for the tight end closure by means of the respective partition 23 which is inserted into the slot 25 or 26.
  • This also simplifies production, which leads to a reduction in costs.
  • the space at which the respective partition 23, in particular a pane, which closes the interior 19 or 20 is to be placed is reproducibly predetermined by the slot 25 or 26.
  • the slot 25 or 26 thus forms a desired position for the partition 23 and at the same time a guide for the approximately sword-like insertion of each partition 23, along which the partition 23 is guided into the correct place in the collector 11 or 12.
  • the respective target position for the closure elements 21, 22 of each collector 11 and 12 is thus reproducibly defined by the slots 25, 26 and the respective partition 23, in particular the disc.
  • the partition 23, in particular the washer which has been introduced in each case does not have to be specially held and secured by means of aids or the like.
  • the respective slot 25, 26 passes through only a partial area of the collector wall 15 or 16 Embodiment for each partition 23 in the insertion direction of this only contain a slot 25 or 26 in the associated collector wall 15 or 16, unlike the third embodiment in Fig. 6, which will be discussed later.
  • the respective partition 23 is received with an edge region, which is illustrated in FIG. 4 with 29, in the respective slot 26 and is gripped on both sides. On its remaining edge region, which does not run in the respective slot 26, which is illustrated by 30 in FIG. 4, the partition wall 23 lies with its end peripheral surface 31 against the facing inner surface 32 of the collector wall 16.
  • the partition 23 e.g. is fixed by soldering in the collector 12, a firm and above all a tight connection can be achieved in the entire system area. Attachment by soldering can be carried out particularly easily, quickly and inexpensively when the parts to be soldered are solder-plated, which may also be the case for the respective partition walls 23, in particular disks.
  • Each partition 23 is at least substantially matched with regard to the shape of the contour of the edge region 29 received in the slot 25, 26 to the shape of the contour of the collector wall 16 there, in particular the outer surface thereof. With a precise adaptation, the outer circumferential surface of the edge region 29 of each partition 23 is then essentially flush with the outer surface of the collector wall 16. This is not essential.
  • the outer circumferential surface of the edge region 29, which is received in the slot 25, 26, can in one case or another extend deeper with respect to the outer surface of the collector wall 15, 16 or project beyond this outer surface.
  • Each partition 23, in particular a disc, is also adapted with respect to the contour of the other edge region 30 lying inside on the collector wall 16 to the contour of the inner surface 32 of the collector wall 15, 16 there, so that an almost tight connection is established there as far as possible by positive locking.
  • each collector 11, 12 in accordance with the first exemplary embodiment in FIGS. 1 to 4 is formed from a tube 13 or 14 with a circular cylindrical cross section
  • the design of the slots 25, 26 and the respective partition wall 23, in particular a disk is special in adaptation thereto simple.
  • the respective partition 23, in particular a disk is round, in particular circular.
  • the slot 25, 26 in the collector 11 or 12 is then at least substantially semicircular.
  • the respective partition 23 then has a larger semicircular part 33 which extends above the respective half diameter and a smaller semicircular part 34 which extends below it.
  • the partition 23 can be inserted through the slot 25, 26 into the respective collector 11 or 12 in such a way that the smaller part 34 rests with its outer peripheral surface 31 of the edge region 30 on the inner surface 32 of the collector wall 15, 16 and the larger part 33 is held with its edge region 29 in the slot 25, 26.
  • the slots 25, 26 in the collector 11 and 12 are each made on the same side in the collector wall 15 and 16, in which the other, the facing ends of the tubes 17, 17a, 17b receiving slots are included, so that all slots including the slots 25, 26 in a clamping of the collector 11, 12 and from the same side, for example in one operation, can be introduced. This simplifies production and leads to time and cost savings. If any slots, notches or the like are desired in the region of the end sections 27 and 28, these can also be introduced in the same operation, which leads to a further simplification.
  • the collectors 11, 12 e.g. can also be obtained in each case from continuous long tubes which are provided as long parts at the desired location with the slots for inserting the tubes 17, 17a and 17b and the slots 25, 26, e.g. in each case where a separation to obtain the individual pipe sections for the collectors 11, 12 is to be carried out, the slots 25, 26 are provided with corresponding slots and thus make predetermined markings for separating the collectors 11, 12 from the long parts.
  • These target markings can be left after being cut to length, since they are located in the region of the end sections 27, 28 and are not disruptive there. You can e.g. similar to the notches visible at the end in FIG. 1.
  • the illustrated collector 112 has the shape of a tube 114 which has an angular, for example square, and in this case, for example square tube cross section with four collector walls 135 to 138, of which the mutually opposite collector walls 135 and 137 run parallel to one another and likewise the collector walls 136 and 138.
  • the at least one slot 126 is located in the upper collector wall 138 in FIG. 5 through which the slot 126 passes.
  • the width of the slot 126 corresponds to the distance that the inner surfaces 132 of the slot-free, opposing collector walls 135, 137 have from one another.
  • the respectively assigned partition 123 is also quadrangular, in particular rectangular, and can be inserted in the direction of the arrow like a sword into the square tube 114 through the slot 126.
  • the width of the partition 123 corresponds to the width of the slot 126, ie the distance between the inner surfaces of the collector walls 135, 137 from one another.
  • the height of the partition 123 measured in the direction of insertion according to the arrow is greater than the inner distance dimension of the collector wall 136 from the collector wall 138, namely by the cross-sectional thickness of the collector wall 138 larger than this inner distance dimension, so that when the partition wall 123 is inserted, it is rectilinear with an upper one extending edge region 129 is received within the slot 126 and gripped on both sides, while the remaining edge region 130, which extends over the three other sides of the partition 123, with its narrow surface facing the interior 120 of the tube 114 on the respective inner surface 132 of the collector walls 135 to 137 is present.
  • the partition 123 When the partition 123 is fastened by soldering, it is soldered to the pipe 114 in the area of these narrow surfaces lying inside and in the area of the edge area 129, which is held in the slot 126 on both sides, so that a firm and also tight connection is produced.
  • the partition 23, 123 takes place in the collector 11, 12, 112 and the partition 23, 123 can absorb relatively large forces even without any other connection to the collector 11, 12 112 and can be passed on to the collector 11, 12, 112, which result in the medium under pressure from the pressure of the medium acting on the surface of the partition 23, 123. Because of this form-fitting hold of the partition 23, 123, the soldered connection does not necessarily have to absorb these forces. The risk of a possible leak, which could otherwise be caused by this soldering on the face due to high pressure loads, is therefore eliminated.
  • the collector 212 likewise consists of a tube 214 with a square cross section.
  • a slot 226 corresponding to FIG. 5 is contained in the collector wall 238.
  • the collector walls 235 and 237 run approximately parallel to one another and have the same distance as in FIG. 5.
  • the rectangular partition 223 is inserted into the collector 212 through the slot 226 and the second slot 246 in the direction of the arrow and thus transverse to the longitudinal course of the collector 212 and fastened therein.
  • the width of the partition 223 corresponds to the distance between the inner surfaces of the two collector walls 235 and 237 from one another.
  • the height of the partition 223 measured in the insertion direction according to the arrow deviates from the exemplary embodiment in FIG. 5 but corresponds to the outside dimension, measured between the outside of the collector wall 236 and the collector wall 238, so that when the partition wall 223 is inserted, it is received with one edge region 229 in the region of the slot 226 and with a similar, opposite edge region 247 in the second slot 246.
  • the partition 223 used is positively held at both edge regions 229 and 247, which run at a distance from one another, so that an even better hold of the partition 223 is achieved solely by positive locking in the collector 212 and the soldering connection used for fastening further on Partition 223 acting forces is relieved. Due to the two slots 226 and 246 running in alignment within a transverse plane, the insertion position of the partition wall 223 is also specified more precisely and the insertion of the partition wall 223 is made even easier, because not only the slot 226 penetrated first forms a guide when inserted, but also the second slot 246, which specifies the target position for the other edge area 247.
  • the fourth exemplary embodiment in FIG. 7 differs from that in FIG. 5 solely in that the width of the slot 326 corresponds to the outer spacing of the collector walls 335 and 337 from one another.
  • the slot 326 thus also extends on both sides over the cross-sectional area of the collector wall 335 and 337.
  • the partition wall 323 on the edge area 329 received in the slot 326 has protruding shoulders 350 on both sides, which should also be received in the slot 326.
  • a second slot may also be required in the collector wall 336, in which case the partition wall 323 is dimensioned higher by the cross-sectional thickness of the collector wall 336, so that in inserted state of the partition 323 in FIG. 7 the lower edge area can then engage in a form-fitting manner in this second slot.
  • the same also applies to the closure elements 21, 22 in the form of the partition walls 23.
  • Individual or all of the described elements of the heat exchanger can be solder-plated, as a result of which the production is particularly simplified.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A heat exchanger (10) more particularly a cooler, has two transversely spaced manifolds (13, 14) and flat tubes (17) which extend therebetween and whose opposite ends are connected to the manifolds (13, 14). Radiating elements (24) are located in interspaces between the flat tubes (17). The interior of the flat tubes (17) is connected to the interior (19, 20) of each manifold (13, 14). The manifolds (13, 14) are sealed by sealing elements (21, 22) as required in the region of at least one end. Each sealing element (21, 22) is formed from a tongue-like partition (23), in particular a plate, which is inserted into the manifold (13, 14) through a slot (25, 26) transverse to the longitudinal extent thereof, and fastened therein. This end seal is particularly simple. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Wärmeaustauscher, insbesondere Kühler, z.B. Ölkühler, der im Oberbegriff des Anspruchs 1 definierten Art.The invention relates to a heat exchanger, particularly a cooler, e.g. Oil cooler, of the type defined in the preamble of claim 1.

Es sind Wärmeaustauscher dieser Art bekannt (WO 84/01208), bei denen die Sammler aus Zylinderrohren bestehen und die Trennwände als dem Innendurchmesser der Rohre angepaßte kreisförmige Kappen gestaltet sind, die in Achsrichtung in die Rohre eingeschoben und mit diesen durch Löten verbunden werden. Diese Verschlußelemente, die mit ihrer äußeren Umfangsfläche an der Innenfläche der Rohrwandung durch Löten befestigt werden, haben eine große axiale Erstreckungsbreite. Eine solche ist zumindest hinsichtlich der äußeren Umfangsfläche aufgrund der Lötbefestigung auch notwendig, damit durch Löten eine feste tragende Verbindung hergestellt werden kann, denn die endseitigen Verschlußelemente stehen mit ihrer Fläche unter dem im Wärmeaustauscher herrschenden Druck des Mediums und sind insbesondere bei hohem Mediumdruck mit endsprechenden großen Kräften belastet, die die Lötbefestigung der endseitigen Verschlußelemente vor allem auf Scherung belasten. Für die Gewährleistung einer ausreichend großen Scherfestigkeit im Bereich der Lötverbindung müssen somit die Kontaktflächen der endseitigen Verschlußelemente möglichst groß bemessen werden, was dann, wenn der Durchmesser durch denjenigen der Sammlerrohre vorgegeben ist und nicht erhöht werden kann, durch entsprechend großes Maß in Axialrichtung verwirklicht werden muß. Derartige relativ breite endseitige Verschlußelemente innerhalb der rohrförmigen Sammler bedingen, daß letztere entsprechend lang dimensioniert sind und mit entsprechend langen Endabschnitten zu beiden Seiten über den Bereich des Wärmeaustauschernetzes überstehen. Dies bedingt nicht nur mehr Material sondern führt auch zu einem größeren Platzbedarf des Wärmeaustauschers. Probleme ergeben sich auch hinsichtlich der Herstellung; die in die Rohre einzuschiebenden endseitigen Verschlußelemente lassen sich nur schwer an der Stelle positionieren, und dies reproduzierbar, an der sie durch Löten befestigt werden sollen. Zumindest ist nicht gewährleistet, daß die axial eingeschobenen Verschlußelemente bei jedem Wärmeaustauscher jeweils an der gleichen Stelle der Sammlerrohre sitzen. Soll die Lötung in einem Lötbad oder in einem Wärmebehandlungsofen vorgenommen werden, so müssen im übrigen die in Achsrichtung der Sammlerrohre eingesetzten Verschlußelemente für den Transport des zusammengesteckten Bauteils und im Wärmebehandlungsofen in ihrer Position gesichert werden, um ein selbsttätiges Verrutschen zu verhindern. Auch dies bringt Schwierigkeiten mit sich. Die Herstellung erweist sich somit allein hinsichtlich der endseitigen Verschlußelemente als schwierig und kompliziert. Von Nachteil ist ferner, daß aufgrund des auf die Fläche der Verschlußelemente wirkenden Mediumdruckes im Betrieb des Wärmeaustauschers die endseitigen Verschlußelemente und über diese die Lötverbindung relativ großen Kräften ausgesetzt ist und somit die Gefahr eines Abscherens und Undichtwerdens besteht.Heat exchangers of this type are known (WO 84/01208), in which the collectors consist of cylinder tubes and the partitions are designed as circular caps adapted to the inside diameter of the tubes, which are pushed into the tubes in the axial direction and connected to them by soldering. These closure elements, which are attached with their outer circumferential surface to the inner surface of the tube wall by soldering, have a large axial width. Such is at least with regard to the outer circumferential surface due to the soldering fixation necessary so that a firm load-bearing connection can be made by soldering, because the surface of the end closure elements are under the pressure of the medium prevailing in the heat exchanger and are particularly large at high medium pressure Forces loaded that stress the soldering of the end closure elements especially on shear. To ensure a sufficiently high shear strength in the area of the soldered connection, the contact surfaces must be of the end closure elements are dimensioned as large as possible, which, if the diameter is predetermined by that of the header tubes and cannot be increased, must be realized by a correspondingly large dimension in the axial direction. Such relatively wide end closure elements within the tubular collector mean that the latter are dimensioned correspondingly long and with correspondingly long end sections protrude on both sides beyond the area of the heat exchanger network. This not only requires more material but also leads to a larger space requirement for the heat exchanger. Manufacturing problems also arise; the end closure elements to be inserted into the tubes are difficult to position at the point, and this is reproducible, to which they are to be attached by soldering. At least it is not guaranteed that the axially inserted closure elements sit in each heat exchanger in the same place on the header tubes. If the soldering is to be carried out in a solder bath or in a heat treatment furnace, the locking elements used in the axial direction of the header pipes for the transport of the assembled component and in the heat treatment furnace must be secured in their position in order to prevent them from slipping automatically. This also creates difficulties. The production proves to be difficult and complicated solely with regard to the end closure elements. A further disadvantage is that due to the medium pressure acting on the surface of the closure elements during operation of the heat exchanger, the end closure elements and, via them, the soldered connection are exposed to relatively large forces, and there is therefore a risk of shearing off and leaking.

Der Erfindung liegt die Aufgabe zugrunde, einen Wärmeaustauscher, insbesondere Kühler, z.B. Ölkühler, der im Oberbegriff des Anspruchs 1 genannten Gattung so auszubilden, daß die Verschlußelemente schnell und einfach an reproduzierbar gleicher Stelle eingebracht und platzsparend gestaltet werden können.The invention is based on the object of designing a heat exchanger, in particular a cooler, for example an oil cooler, of the type mentioned in the preamble of claim 1, that the closure elements can be introduced quickly and easily at the same reproducible location and can be designed to save space.

Die Aufgabe ist bei einem Wärmeaustauscher, insbesondere Kühler, z.B. Ölkühler, der im Oberbegriff des Anspruchs 1 definierten Gattung erfindungsgemäß durch die Merkmale im Kennzeichnungsteil des Anspruchs 1 gelöst. Durch die Ausbildung des jeweiligen Verschlußelements als Trennwand, die etwa schwertartig in den Sammler durch einen Schlitz quer zum Längsverlauf eingesetzt und darin befestigt ist, können relativ querschnittsdünne Trennwände verwendet werden, die - in Längsrichtung des jeweiligen Sammlers betrachtet - nur wenig Platz benötigen, so daß im Bereich des entsprechend gestalteten endseitigen Verschlußelementes die Sammler kürzer gehalten werden können. Dies führt zu einer Material-, Kosten- und Gewichtsersparnis. Durch die Schlitze im Sammler, in die die Trennwände einzusetzen sind, sind jeweilige Sollstellen für die Positionierung und Halterung der Trennwände vorgegeben. Die Trennwände sind somit reproduzierbar durch die Schlitze positioniert und fixiert. Die Schlitze bilden sichtbare Montagestellen und fungieren im übrigen auch noch als Führungen beim Einsetzen der Trennwände. Die Trennwände selbst lassen sich als querschnittsdünne Scheiben gestalten, die somit einfach und kostengünstig sind. Das Einsetzen der Trennwände in die Schlitze ist ebenfalls schnell und einfach und somit kostengünstig zu bewerkstelligen. Die Schlitzbreite und die Querschnittsdicke der Trennwand lassen sich maßlich so aufeinander abstimmen, daß die in die Schlitze eingesetzten Trennwände nach Einsetzen klemmend gehalten sind, so daß es schon deswegen keiner zusätzlichen Sicherungsmittel bedarf, um die eingesetzten Trennwände in Position zu halten, z.B. beim Transport des aus Einzelbestandteilen zusammengesteckten Wärmeaustauschers in ein Lötbad oder einen Wärmebehandlungsofen, um dort sämtliche Komponenten in einem Lötvorgang durch Löten zu verbinden. Die erfindungsgemäße Gestaltung ermöglicht im übrigen auch die Herstellung einer guten und zuverlässig dichten Lötbefestigung. Von Vorteil ist auch, daß jede Trennwand im Schlitz formschlüssig gehalten ist und somit auf die Trennwand wirkende Kräfte dadurch formschlüssig vom Sammler aufgenommen werden und eine Lötverbindung von diesen Kräften dadurch entlastet ist. Ein weiterer Vorteil liegt darin, daß die Endbereiche der Sammler außerhalb des endseitigen Abschlusses mittels der jeweiligen Trennwände nicht unbedingt formgenau sein müssen und auch nicht stirnseitig sauber abschließen müssen. Die über die Außenfläche der Trennwand überstehenden Endabschnitte bedürfen also keiner besonderen Bearbeitung oder Beachtung. Ein weiterer Vorteil liegt darin, daß diese über die Außenfläche der endseitig abschließenden Trennwände überstehenden Endabschnitte der Sammler noch für andere Gestaltungen und Aufgaben frei zur Verfügung stehen. Z.B. kann man diese Endabschnitte dafür heranziehen, den Wärmeaustauscher am Befestigungsort zu halten oder zu befestigen. Auch lassen sich an diesen Endbereichen irgendwelche Verbindungsmittel anbringen, z.B. um mit dem Wärmeaustauscher andere Bauteile zu verbinden oder letzteren an andere Bauteile anzuschließen. Die abstehenden Endabschnitte kann man auch zur Bildung von Bezugsflächen heranziehen, die eine reproduzierbare Halterung rohrförmiger Sammler in Umfangsrichtung immer an gleicher Stelle gewährleisten, was z.B. Vorteile beim Zusammensetzen einzelner Elemente des Wärmeaustauschers hat. Schon bei der Herstellung der Sammler kann dies von Vorteil sein. Die für die einzusetzenden Trennwände benötigten Schlitze in den Sammlern lassen sich schnell und ainfach herstellen, z.B. gleichzeitig mit den übrigen Schlitzen, in denen die Rohre des Wärmeaustauschernetzes mit ihren gegenüberliegenden Enden aufgenommen und befestigt werden. Die über die Außenfläche der endseitigen Trennwände überstehenden Endabschnitte der Sammler lassen sich z.B. auch zur Anbringung von Seitenteilen nutzen, die das Wärmeaustauschernetz jeweils seitlich abschließen. Auch für andere Zwecke lassen sich diese Endabschnitte vorteilhaft nutzen.The object is achieved in a heat exchanger, in particular a cooler, for example an oil cooler, of the type defined in the preamble of claim 1 by the features in the characterizing part of claim 1. Due to the design of the respective closure element as a partition, which is inserted into the collector through a slot transversely to the longitudinal profile and fastened in a sword-like manner, relatively thin cross-sectional walls can be used which - viewed in the longitudinal direction of the respective collector - require little space, so that in the area of the appropriately designed end closure element, the collectors can be kept shorter. This leads to material, cost and weight savings. Through the slots in the collector, into which the partitions are to be inserted, respective target positions for positioning and holding the partitions are specified. The partitions are thus reproducibly positioned and fixed by the slots. The slots form visible assembly points and also act as guides when inserting the partitions. The partition walls themselves can be designed as thin slices, which are therefore simple and inexpensive. The insertion of the partitions into the slots is also quick and easy and therefore inexpensive to do. The slot width and the cross-sectional thickness of the partition can be dimensionally coordinated so that the partitions inserted into the slots are held in place after insertion, so that no additional securing means are needed to keep the partitions in place, for example when transporting the heat exchanger assembled from individual components in a soldering bath or a heat treatment furnace, in order to store all components in one soldering process to connect by soldering. The design according to the invention also enables the production of a good and reliably tight soldering attachment. It is also advantageous that each partition is held in a form-fitting manner in the slot and forces acting on the partition are thus positively absorbed by the collector and a solder connection is relieved of these forces. A further advantage is that the end regions of the collectors do not necessarily have to be accurate in shape outside the end closure by means of the respective partition walls and also do not have to end cleanly on the end face. The end sections projecting beyond the outer surface of the partition therefore do not require any special processing or attention. A further advantage is that these end sections of the collectors projecting beyond the outer surface of the end partition walls are freely available for other designs and tasks. For example, these end sections can be used to hold or secure the heat exchanger at the mounting location. Any connecting means can also be attached to these end regions, for example in order to connect other components to the heat exchanger or to connect the latter to other components. The protruding end sections can also be used to form reference surfaces which always ensure reproducible mounting of tubular collectors in the circumferential direction at the same place, which has advantages, for example, when assembling individual elements of the heat exchanger. This can be an advantage even in the production of the collectors. The slots in the collectors required for the partitions to be used can be produced quickly and easily, for example simultaneously with the other slots in which the tubes of the heat exchanger network are received and fastened with their opposite ends. The end sections of the collectors projecting beyond the outer surface of the end partitions can also be used, for example, for attaching side parts which each terminate the heat exchanger network at the side. Also for these end sections can be used advantageously for other purposes.

In Schlitze des Sammlers einsetzbare und darin befestigbare Unterteilungsplatten, die an geeigneter Stelle zwischen endseitig abgeschlossenen Sammlern eingebracht sind, sind zum Unterteilen des Innenraumes der Sammler und zur Bildung eines mehrflutigen Wärmeaustauschers bekannt (EP-A-360 362), wobei aber jeder Sammler an einem Ende mittels eines herkömmlichen endseitigen Absperrstopfens als Verschlußelement verschlossen ist und am gegenüberliegenden Ende des gleichen Sammlers die Zuleitung für das Medium bzw. Ableitung des Mediums erfolgt.Partition plates which can be inserted into and secured in slots of the collector and which are introduced at a suitable point between collectors which are closed at the ends are known for dividing the interior of the collector and for forming a multi-flow heat exchanger (EP-A-360 362), but each collector on one End is closed by means of a conventional end stopper plug as a closure element and at the opposite end of the same collector, the supply for the medium or discharge of the medium takes place.

Weitere Erfindungsmerkmale und vorteilhafte Ausgestaltungen ergeben sich aus den Ansprüchen 2 bis 20.Further features of the invention and advantageous embodiments result from claims 2 to 20.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung.Further details and advantages of the invention emerge from the following description.

Die Erfindung ist nachfolgend anhand von in den Zeichnungen gezeigten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
eine schematische, teilweise geschnittene Seitenansicht eines Wärmeaustauschers,
Fig. 2
eine schematische perspektivische Ansicht des unteren Teils des Wärmeaustauschers in Fig. 1,
Fig. 3
eine schematische Seitenansicht des unteren Teils des Wärmeaustauschers in Fig. 1 und 2,
Fig. 4
einen schematischen Schnitt entlang der Linie IV - IV in Fig. 3,
Fig. 5, 6 und 7
jeweils einen schematischen Schnitt etwa entsprechend demjenigen in Fig. 4 eines zweiten bzw. dritten bzw. vierten Ausführungsbeispieles.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawings. Show it:
Fig. 1
2 shows a schematic, partially sectioned side view of a heat exchanger,
Fig. 2
1 shows a schematic perspective view of the lower part of the heat exchanger in FIG. 1,
Fig. 3
1 shows a schematic side view of the lower part of the heat exchanger in FIGS. 1 and 2,
Fig. 4
3 shows a schematic section along the line IV-IV in FIG. 3,
5, 6 and 7
each a schematic section approximately corresponding to that in Fig. 4 of a second, third or fourth embodiment.

In Fig. 1 bis 4 ist ein erstes Ausführungsbeispiel eines Wärmeaustauschers 10 gezeigt, der insbesondere als Kühler, z.B. Ölkühler, Wasserkühler od. dgl., gestaltet ist, statt dessen jedoch ebensogut als Heizwärmetauscher, Kondensator od. dgl. ausgebildet sein kann. Der Wärmeaustauscher 10 weist zwei etwa rohrförmige Sammler 11 und 12 auf, die in Querabstand voneinander angeordnet sind und z.B. etwa parallel zueinander verlaufen. Zumindest einer der Sammler 11 und 12 besteht aus einem runden, z.B. im Querschnitt kreiszylindrischen, Rohr. Beim gezeigten ersten Ausführungsbeispiel in Fig. 1 bis 4 bestehen beide Sammler 11 und 12 jeweils aus einem kreiszylindrischen Rohr 13 bzw. 14 mit zylindrischer Sammlerwandung 15 bzw. 16. Bei einem anderen, nicht gezeigten Ausführungsbeispiel bestehen die Sammler 11, 12 statt dessen aus Ovalrohren, Flachrohren od. dgl.1 to 4 show a first exemplary embodiment of a heat exchanger 10, which is designed in particular as a cooler, for example an oil cooler, water cooler or the like, but instead can equally well be in the form of a heat exchanger, condenser or the like. The heat exchanger 10 has two approximately tubular collectors 11 and 12 which are arranged at a transverse distance from one another and, for example, run approximately parallel to one another. At least one of the collectors 11 and 12 consists of a round, for example circularly cylindrical tube. In the first exemplary embodiment shown in FIGS. 1 to 4, both collectors 11 and 12 each consist of a circular cylindrical tube 13 or 14 with a cylindrical one Collector wall 15 or 16. In another embodiment, not shown, the collectors 11, 12 instead consist of oval tubes, flat tubes or the like.

Zwischen den Sammlern 11 und 12 verlaufen Rohre 17, die z.B. als Flachrohre ausgebildet sind, wobei lediglich das in Fig. 1 rechte Rohr 17a und linke Rohr 17b, das zugleich den seitlichen Abschluß bildet, ein von den übrigen Rohren 17 abweichendes Querschnittsmaß hat, insbesondere, wie ersichtlich ist, größer im Querschnitt bemessen ist. Dabei kann das in Fig. 1 rechte Rohr 17a für die Zuleitung eines Mediums dienen, das bei der Gestaltung als Kühler zu kühlen ist und im unteren Endbereich des Rohres 17a zugeführt wird, wie durch den dortigen Pfeil 18 veranschaulicht ist. Das in Fig. 1 links verlaufende Rohr 17b kann z.B. als Überbrückungsleitung dienen, die in bestimmten Betriebszuständen z.B. mittels eines nicht gezeigten Ventils geöffnet wird und unter Überbrückung der Rohre 17 eine Verbindung zwischen den beiden Sammlern 11 und 12 herstellt.Pipes 17 run between the collectors 11 and 12, which e.g. are designed as flat tubes, only the right tube 17a and left tube 17b in FIG. 1, which also forms the lateral closure, has a cross-sectional dimension that differs from the other tubes 17, in particular, as can be seen, is dimensioned larger in cross-section. The pipe 17a on the right in FIG. 1 can be used for the supply of a medium which is to be cooled in the design as a cooler and which is fed in the lower end region of the pipe 17a, as illustrated by the arrow 18 there. The pipe 17b running on the left in Fig. 1 can e.g. serve as a bridging line, which in certain operating states e.g. is opened by means of a valve, not shown, and connects the two collectors 11 and 12 by bridging the tubes 17.

Alle Rohre 17, 17a und 17b sind mit den einander gegenüberliegenden Enden mit jeweils einem zugeordneten Sammler 11, 12 verbunden, so daß das Innere der Rohre 17, 17a, 17b mit dem Inneren 19 bzw. 20 jedes Sammlers 11, 12 in Verbindung steht und ein Medium, das z.B. im Bereich des Pfeiles 18 in das in Fig. 1 rechte Rohr 17a eingeleitet und darüber dem in Fig. 1 oben angeordneten Sammler 11 zugeführt wird, einflutig, wie gezeigt, oder bei einem anderen, nicht gezeigten Ausführungsbeispiel statt dessen auch mehrflutig, das Innere 19 dieses Sammlers 11, das Innere der Rohre 17 bzw. im Falle des Überbrückungsbetriebes des Rohres 17b und das Innere 20 des Sammlers 12 durchströmen kann, wie in Fig. 1 durch Pfeile verdeutlicht ist. Das hier zur Zuführung des Mediums herangezogene rechte Rohr 17a ist im unteren Endbereich durch den Sammler 12 hindurch und aus diesem herausgeführt, so daß in einfacher Weise die Zuführung gemäß Pfeil 18 erfolgen kann.All tubes 17, 17a and 17b are connected at their opposite ends to an associated collector 11, 12, so that the interior of the tubes 17, 17a, 17b is connected to the interior 19 and 20 of each collector 11, 12 and a medium, which is introduced, for example, in the region of the arrow 18 into the tube 17a on the right in FIG. 1 and above it is fed to the collector 11 arranged at the top in FIG. 1, as shown, or in another embodiment, not shown, instead instead multi-flow, the interior 19 of this collector 11, the interior of the tubes 17 or in the case of bridging operation of the tube 17b and the interior 20 of the header 12 can flow through, as shown in Fig. 1 by arrows. The right tube 17a used here for supplying the medium is passed through and out of the collector 12 in the lower end region, so that the supply according to arrow 18 can be carried out in a simple manner.

Das Innere 20 des Sammlers 12 steht in diesem Bereich nicht mit dem Inneren des Rohres 17a in Verbindung.The interior 20 of the collector 12 is not connected to the interior of the tube 17a in this area.

Die Sammler 11 und 12 sind je nach Bedarf im Bereich des einen Endes oder beider Enden mittels Verschlußelementen 21 bzw. 22 verschlossen. Beim gezeigten Ausführungsbeispiel ist der in Fig. 1 obere Sammler 11 im Bereich beider Enden mit jeweils einem Verschlußelement 21 verschlossen, das im Bereich des rechten Endes bereits eingebracht und zur Verdeutlichung im Bereich des linken Endes noch nicht eingesetzt ist. In gleicher Weise ist der in Fig. 1 untere Sammler 12 ebenfalls im Bereich beider Enden mittels eines Verschlußelements 22 verschlossen, wobei auch hier das in Fig. 1 rechts befindliche Ende bereits verschlossen ist, während beim links befindlichen Ende das gleichartige Verschlußelement 22 noch nicht eingebracht gezeigt ist. Dies dient der besseren Übersicht. Tatsächlich werden alle Verschlußelemente 21, 22, die benötigt werden, in die Sammler 11, 12 eingesetzt und letztere mit den Rohren 17, 17a, 17b verbunden, wobei die gesamte Einheit dann z.B. in ein Lötbad eingetaucht oder in einen Lötofen eingebracht wird und dabei sämtliche Verbindungen zwischen den einzelnen Teilen gleichzeitig durch Löten hergestellt werden, was also auch für die Verbindung zwischen den Verschlußelementen 21, 22 und den zugeordneten Sammlern 11 bzw. 12 gilt.The collectors 11 and 12 are closed as required in the area of one end or both ends by means of closure elements 21 and 22, respectively. In the exemplary embodiment shown, the upper collector 11 in FIG. 1 is closed in the area of both ends with a closure element 21, which has already been introduced in the area of the right end and has not yet been used for clarification in the area of the left end. In the same way, the lower collector 12 in FIG. 1 is likewise closed in the region of both ends by means of a closure element 22, the end on the right in FIG. 1 already being closed here, while the similar closure element 22 has not yet been introduced at the end on the left is shown. This provides a better overview. In fact, all the closure elements 21, 22 that are required are inserted into the collectors 11, 12 and the latter are connected to the pipes 17, 17a, 17b, the entire unit then being e.g. is immersed in a solder bath or placed in a soldering oven and all connections between the individual parts are made simultaneously by soldering, which also applies to the connection between the closure elements 21, 22 and the associated collectors 11 and 12, respectively.

Es hängt von der besonderen Gestaltung und gewünschten Betriebsweise des Wärmeaustauschers 10 ab, ob bei jedem Sammler 11 bzw. 12 im Bereich beider Enden, wie in Fig. 1 gezeigt ist, oder in abgewandelter Form z.B. nur im Bereich eines Endes ein jeweiliges Verschlußelement 21 bzw. 22 vorgesehen wird. Soll z.B. die Zufuhr des Mediums am in Fig. 1 rechten oberen Ende des dortigen Sammlers 11 und dabei etwa koaxial zum Rohr erfolgen, so wird in diesem Endbereich das Verschlußelement 21 nicht benötigt und statt dessen dort der Zufuhranschluß für das Medium angebracht. Dann ist der Sammler 11 nur am in Fig. 1 linken Ende mittels eines Verschlußelementes 21 verschlossen. Analog wird hinsichtlich des anderen Sammlers 12 verfahren, wenn z.B. im Bereich eines Endes und dabei etwa koaxial zum Rohrverlauf die Ableitung des Mediums erfolgen soll.It depends on the particular design and the desired mode of operation of the heat exchanger 10, whether each collector 11 or 12 in the region of both ends, as shown in FIG. 1, or in a modified form, for example only in the region of one end, a respective closure element 21 or 22 is provided. If, for example, the medium is to be fed in at the top right-hand end of the collector 11 in FIG. 1 and approximately coaxially with the pipe, the closure element 21 is not required in this end region and instead the supply connection for the medium is there appropriate. Then the collector 11 is closed only at the left end in FIG. 1 by means of a closure element 21. The same procedure is followed with respect to the other collector 12 if, for example, the medium is to be discharged in the area of one end and approximately coaxially with the pipe run.

Die Verschlußelemente 21 und 22 beim ersten Ausführungsbeispiel in Fig. 4 sind alle gleichartig gestaltet, weswegen nachfolgend weitere Einzelheiten dazu insbesondere anhand Fig. 3 und 4 und dem dortigen Verschlußelement 22 erläutert sind.The closure elements 21 and 22 in the first embodiment in FIG. 4 are all of the same design, which is why further details are explained below in particular with reference to FIGS. 3 and 4 and the closure element 22 there.

Das jeweilige Verschlußelement 21, 22 ist aus einer Trennwand 23 gebildet, die insbesondere als Scheibe ausgebildet ist. Dabei kann die Querschnittsdicke der Trennwand 23, insbesondere Scheibe, etwa der Querschnittsdicke der Sammlerwandung 15 bzw. 16 entsprechen. Auf jeden Fall muß der Querschnitt der Trennwand 23, insbesondere Scheibe, nicht größer als derjenige der Sammlerwandung 15 bzw. 16 sein, sondern der Querschnitt kann je nach Gegebenheiten sogar noch kleiner als derjenige der Sammlerwandung 15 bzw. 16 gewählt sein. Die jeweilige Trennwand 23, insbesondere Scheibe, ist im jeweiligen Sammler 11, 12 insbesondere durch Löten befestigt, z.B. Weichlöten oder Hartlöten.The respective closure element 21, 22 is formed from a partition 23, which is designed in particular as a disc. The cross-sectional thickness of the partition 23, in particular the pane, can roughly correspond to the cross-sectional thickness of the collector wall 15 or 16. In any case, the cross-section of the partition 23, in particular the pane, does not have to be larger than that of the collector wall 15 or 16, but the cross-section can, depending on the circumstances, be even smaller than that of the collector wall 15 or 16. The respective partition 23, in particular a pane, is fixed in the respective collector 11, 12 in particular by soldering, e.g. Soft soldering or brazing.

Im einzelnen ist die jeweilige Trennwand 23, insbesondere Scheibe, in den jeweiligen Sammler 11 bzw. 12 durch einen jeweils zugeordneten Schlitz 25 im Sammler 11 bzw. Schlitz 26 im Sammler 12 in den Sammler 11 bzw. 12 in Richtung der in Fig. 1 links angedeuteten Pfeile quer zum Längsverlauf des Sammlers 11, 12 eingesetzt und in diesem befestigt. Die jeweilige Trennwand 23, insbesondere Scheibe, ist somit etwa schwertartig eingebracht und wirksam. Der jeweilige Schlitz 25 bzw. 26 befindet sich in einem gewissen Abstand vom jeweiligen Ende des Sammlers 11 bzw. 12, so daß bei in den jeweiligen Schlitz 25 bzw. 26 eingesetztem Verschlußelement 21 bzw. 22, insbesondere eingesetzter scheibenförmiger Trennwand 23, noch ein von dort abstehender Endabschnitt 27 bzw. 28 des jeweiligen Sammlers 11 bzw. 12 verbleibt, der über die dem Inneren 19 bzw. 20 abgewandte Außenfläche der Trennwand 23, insbesondere Scheibe, übersteht. In vorteilhafter Weise kann dieser überstehende Endabschnitt 27 bzw. 28 noch vielfältig genutzt werden, wenn dies gewünscht wird. Der jeweilige Endabschnitt 27 bzw. 28 ist auf jeden Fall für jede gewünschte Gestaltung frei und zugänglich. Er kann z.B., wie in Fig. 1 bis 4 veranschaulicht ist, ausgeklinkt werden, um damit besonderen Wünschen zu entsprechen. Durch die Ausklinkung sind z.B. Bezugsflächen geschaffen, die es ermöglichen, die runden rohrförmigen Sammler 11, 12 in Umfangsrichtung, bezogen auf ihre Längsachse, an irgendwelchen Anschlagteilen reproduzierbar auszurichtgen, z.B. für die Montage, für den Zusammenbau etc. Die Ausklinkungen können auch zu anderen Zwecken nützlich sein. Auch andere Gestaltungen der Endabschnitte 27, 28 sind möglich. Diese können z.B. auch zur Verbindung anderer Teile, zur Befestigung des Wärmeaustauschers 10 oder zur Anbringung weiterer Teile an letzterem herangezogen werden, wobei man sowohl in den zum Ende hin offenen Innenraum jedes Endabschnittes 27, 28 z.B. axial mit entsprechenden Mitteln eingreifen kann als auch quer dazu, z.B. durch Schlitze, Bohrungen od. dgl., die im Endabschnitt 27 bzw. 28 vorgesehen werden. Ersichtlich wird durch den Abschluß des Inneren 19, 20 jedes Sammlers 11 bzw. 12 durch die jeweilige Trennwand 23, insbesondere Scheibe, ein sehr geringer Platz, in Axialrichtung jedes Sammlers 11, 12 gemessen, benötigt. Das Längenmaß jedes Sammlers 11, 12 muß daher bei dieser Form des endseitigen Abschlusses mittels der Trennwand 23, insbesondere Scheibe, nicht größer als bei bisher bekannten Gestaltungen gewählt werden, wobei man zusätzlich dazu sogar noch die Endabschnitte 27, 28 gewinnt und die Breite des Wärmeaustauschernetzes, gemessen vom Rohr 17a bis zum Rohr 17b, dadurch nicht reduziert werden muß. Die beschriebene Art des Abschlusses des Inneren 19, 20 jedes Sammlers 11 bzw. 12 hat im übrigen den Vorteil, daß die Enden der Sammler 11, 12, die in Abstand vom jeweiligen Schlitz 25 bzw. 26 verlaufen, nicht exakt abgeschnitten und bearbeitet sein müssen, da derartiges für den dichten endseitigen Abschluß mittels der jeweiligen Trennwand 23, die in den Schlitz 25 bzw. 26 eingesetzt wird, nicht erforderlich ist. Auch dadurch wird die Herstellung vereinfacht, was zu einer Kostenreduzierung führt. Von Vorteil ist ferner, daß der Platz, an dem die jeweilige Trennwand 23, insbesondere Scheibe, plaziert werden soll, die das Innere 19 bzw. 20 abschließt, reproduzierbar durch den Schlitz 25 bzw. 26 vorgegeben ist. Der Schlitz 25 bzw. 26 bildet somit eine Sollposition für die Trennwand 23 und zugleich zum etwa schwertartigen Einsetzen jeder Trennwand 23 eine Führung, längs der die Trennwand 23 geführt an die richtige Stelle in den Sammler 11 bzw. 12 eingebracht wird. Die jeweilige Sollposition für die Verschlußelemente 21, 22 jedes Sammlers 11 bzw. 12 ist somit durch die Schlitze 25, 26 und die jeweilige Trennwand 23, insbesondere Scheibe, reproduzierbar festgelegt. Für die Befestigung, z.B. durch Löten, muß im übrigen die jeweils eingebrachte Trennwand 23, insbesondere Scheibe, nicht mittels Hilfsmitteln od. dgl. besonders gehalten und gesichert werden. Durch entsprechende maßliche Abstimmung der Schlitzbreite der Schlitze 25, 26 auf die Querschnittsdicke der jeweiligen Trennwand 23, insbesondere Scheibe, kann ein Klemmsitz für jede in einen Schlitz 25, 26 eingesteckte Trennwand 23, insbesondere Scheibe, erreicht werden.Specifically, the respective partition 23, in particular the pane, is in the respective collector 11 or 12 through a respectively assigned slot 25 in the collector 11 or slot 26 in the collector 12 in the collector 11 or 12 in the direction of the one on the left in FIG. 1 indicated arrows transversely to the longitudinal course of the collector 11, 12 inserted and fastened in this. The respective partition 23, in particular the pane, is thus introduced and is effective like a sword. The respective slot 25 or 26 is located at a certain distance from the respective end of the collector 11 or 12, So that when the closure element 21 or 22 is inserted into the respective slot 25 or 26, in particular a disk-shaped partition 23, an end section 27 or 28 of the respective collector 11 or 12 protruding from there remains, which is connected to the interior 19 or 20 protrudes away from the outer surface of the partition 23, in particular the washer. Advantageously, this protruding end section 27 or 28 can still be used in a variety of ways if this is desired. The respective end section 27 or 28 is in any case free and accessible for any desired design. For example, as illustrated in FIGS. 1 to 4, it can be unlatched in order to meet special requirements. The notch creates, for example, reference surfaces that make it possible to reproducibly align the round tubular collectors 11, 12 in the circumferential direction with respect to any stop parts in relation to their longitudinal axis, for example for assembly, for assembly, etc. The notches can also be used for other purposes to be useful. Other configurations of the end sections 27, 28 are also possible. These can also be used, for example, for connecting other parts, for fastening the heat exchanger 10 or for attaching further parts to the latter, it being possible to intervene in the interior of each end section 27, 28, which is open towards the end, for example axially with appropriate means, and also transversely thereto , for example through slots, bores or the like, which are provided in the end section 27 or 28. Obviously, due to the closure of the interior 19, 20 of each collector 11 or 12 by the respective partition 23, in particular a pane, a very small space, measured in the axial direction of each collector 11, 12, is required. The length dimension of each collector 11, 12 therefore does not have to be chosen larger than in previously known designs in this form of end closure by means of the partition wall 23, in particular a washer, with the end sections 27, 28 being additionally added wins and the width of the heat exchanger network, measured from tube 17a to tube 17b, does not have to be reduced thereby. The described manner of closing the interior 19, 20 of each collector 11 or 12 has the further advantage that the ends of the collector 11, 12, which are spaced from the respective slot 25 or 26, do not have to be cut off and machined exactly , since such is not necessary for the tight end closure by means of the respective partition 23 which is inserted into the slot 25 or 26. This also simplifies production, which leads to a reduction in costs. It is also advantageous that the space at which the respective partition 23, in particular a pane, which closes the interior 19 or 20 is to be placed, is reproducibly predetermined by the slot 25 or 26. The slot 25 or 26 thus forms a desired position for the partition 23 and at the same time a guide for the approximately sword-like insertion of each partition 23, along which the partition 23 is guided into the correct place in the collector 11 or 12. The respective target position for the closure elements 21, 22 of each collector 11 and 12 is thus reproducibly defined by the slots 25, 26 and the respective partition 23, in particular the disc. For the attachment, for example by soldering, the partition 23, in particular the washer, which has been introduced in each case does not have to be specially held and secured by means of aids or the like. By a corresponding dimensional adjustment of the slot width of the slots 25, 26 to the cross-sectional thickness of the respective partition 23, in particular a pane, a clamp fit can be achieved for each partition 23, in particular a pane, inserted into a slot 25, 26.

Wie aus Fig. 1 bis 4 ersichtlich ist, durchsetzt der jeweilige Schlitz 25, 26 lediglich einen Teilbereich der Sammlerwandung 15 bzw. 16. Dabei ist beim ersten Ausführungsbeispiel für jede Trennwand 23 in Einsteckrichtung dieser nur ein Schlitz 25 bzw. 26 in der zugeordneten Sammlerwandung 15 bzw. 16 enthalten, anders als beim dritten Ausführungsbeispiel in Fig. 6, worauf später noch eingegangen werden wird.As can be seen from FIGS. 1 to 4, the respective slot 25, 26 passes through only a partial area of the collector wall 15 or 16 Embodiment for each partition 23 in the insertion direction of this only contain a slot 25 or 26 in the associated collector wall 15 or 16, unlike the third embodiment in Fig. 6, which will be discussed later.

Die jeweilige Trennwand 23 ist mit einem Randbereich, der in Fig. 4 mit 29 veranschaulicht ist, im jeweiligen Schlitz 26 aufgenommen und beidseitig gefaßt. Auf ihrem übrigen, nicht im jeweiligen Schlitz 26 verlaufenden Randbereich, der in Fig. 4 mit 30 veranschaulicht ist, liegt die Trennwand 23 mit ihrer stirnseitigen Umfangsfläche 31 an der zugewandten Innenfläche 32 der Sammlerwandung 16 an. Dadurch, daß die Trennwand 23 z.B. durch Löten im Sammler 12 befestigt ist, ist im gesamten Anlagebereich eine feste und vor allem auch dichte Verbindung erzielbar. Besonders einfach, schnell und kostengünstig läßt sich dabei eine Befestigung durch Löten dann vollziehen, wenn die zu lötenden Teile lotplattiert sind, was bedarfsweise auch für die jeweiligen Trennwände 23, insbesondere Scheiben, der Fall sein kann.The respective partition 23 is received with an edge region, which is illustrated in FIG. 4 with 29, in the respective slot 26 and is gripped on both sides. On its remaining edge region, which does not run in the respective slot 26, which is illustrated by 30 in FIG. 4, the partition wall 23 lies with its end peripheral surface 31 against the facing inner surface 32 of the collector wall 16. In that the partition 23 e.g. is fixed by soldering in the collector 12, a firm and above all a tight connection can be achieved in the entire system area. Attachment by soldering can be carried out particularly easily, quickly and inexpensively when the parts to be soldered are solder-plated, which may also be the case for the respective partition walls 23, in particular disks.

Jede Trennwand 23 ist hinsichtlich des Konturenverlaufs des im Schlitz 25, 26 aufgenommenen Randbereichs 29 dem dortigen Konturenverlauf der Sammlerwandung 16, insbesondere der Außenfläche dieser, zumindest im wesentlichen angepaßt. Bei genauer Anpassung schließt die äußere Umfangsfläche des Randbereichs 29 jeder Trennwand 23 dann im wesentlichen bündig mit der Außenfläche der Sammlerwandung 16 ab. Zwingend ist dies nicht unbedingt. Die äußere Umfangsfläche des Randbereichs 29, der im Schlitz 25, 26 aufgenommen ist, kann im einen oder anderen Fall in bezug auf die Außenfläche der Sammlerwandung 15, 16 auch tiefer verlaufen oder über diese Außenfläche überstehen.Each partition 23 is at least substantially matched with regard to the shape of the contour of the edge region 29 received in the slot 25, 26 to the shape of the contour of the collector wall 16 there, in particular the outer surface thereof. With a precise adaptation, the outer circumferential surface of the edge region 29 of each partition 23 is then essentially flush with the outer surface of the collector wall 16. This is not essential. The outer circumferential surface of the edge region 29, which is received in the slot 25, 26, can in one case or another extend deeper with respect to the outer surface of the collector wall 15, 16 or project beyond this outer surface.

Jede Trennwand 23, insbesondere Scheibe, ist ferner hinsichtlich des Konturenverlaufs des an der Sammlerwandung 16 innenseitig anliegenden anderen Randbereichs 30 dem dortigen Konturenverlauf der Innenfläche 32 der Sammlerwandung 15, 16 angepaßt, so daß dort möglichst schon durch Formschluß eine annähernd dichte Verbindung hergestellt wird.Each partition 23, in particular a disc, is also adapted with respect to the contour of the other edge region 30 lying inside on the collector wall 16 to the contour of the inner surface 32 of the collector wall 15, 16 there, so that an almost tight connection is established there as far as possible by positive locking.

Ist jeder Sammler 11, 12 entsprechend dem ersten Ausführungsbeispiel in Fig. 1 bis 4 aus einem im Querschnitt kreiszylindrischen Rohr 13 bzw. 14 gebildet, so ist die Gestaltung der Schlitze 25, 26 und der jeweiligen Trennwand 23, insbesondere Scheibe, in Anpassung daran besonders einfach. In diesem Fall ist die jeweilige Trennwand 23, insbesondere Scheibe, rund, insbesondere kreisförmig,ausgebildet. Der Schlitz 25, 26 im Sammler 11 bzw. 12 ist dann zumindest im wesentlichen halbkreisförmig ausgebildet. In Anpassung daran weist dann die jeweilige Trennwand 23 einen sich oberhalb des jeweiligen Halbmessers erstreckenden größeren halbkreisförmigen Teil 33 und einen sich darunter erstreckenden kleineren halbkreisförmigen Teil 34 auf. Mit letzterem voran ist die Trennwand 23 durch den Schlitz 25, 26 hindurch in den jeweiligen Sammler 11 bzw. 12 so einsetzbar, daS der kleinere Teil 34 mit seiner äußeren Umfangsfläche 31 des Randbereichs 30 an der Innenfläche 32 der Sammlerwandung 15, 16 anliegt und der größere Teil 33 mit seinem Randbereich 29 im Schlitz 25, 26 gehalten ist.If each collector 11, 12 in accordance with the first exemplary embodiment in FIGS. 1 to 4 is formed from a tube 13 or 14 with a circular cylindrical cross section, the design of the slots 25, 26 and the respective partition wall 23, in particular a disk, is special in adaptation thereto simple. In this case, the respective partition 23, in particular a disk, is round, in particular circular. The slot 25, 26 in the collector 11 or 12 is then at least substantially semicircular. In adaptation to this, the respective partition 23 then has a larger semicircular part 33 which extends above the respective half diameter and a smaller semicircular part 34 which extends below it. With the latter, the partition 23 can be inserted through the slot 25, 26 into the respective collector 11 or 12 in such a way that the smaller part 34 rests with its outer peripheral surface 31 of the edge region 30 on the inner surface 32 of the collector wall 15, 16 and the larger part 33 is held with its edge region 29 in the slot 25, 26.

Wie sich insbesondere aus Fig. 1 ergibt, sind die Schlitze 25, 26 beim Sammler 11 bzw. 12 jeweils auf der gleichen Seite in die Sammlerwandung 15 bzw. 16 eingebracht, in der auch die übrigen, die zugewandten Enden der Rohre 17, 17a, 17b aufnehmenden Schlitze enthalten sind, so daß also sämtliche Schlitze einschl. der Schlitze 25, 26 in einer Einspannung des Sammlers 11, 12 und von jeweils der gleichen Seite her, z.B. in einem Arbeitsgang, eingebracht werden können. Dies vereinfacht die Fertigung und führt zu einer Zeit- und Kostenersparnis. Wenn im Bereich der Endabschnitte 27 und 28 irgendwelche Schlitze, Ausklinkungen oder dergleichen gewünscht werden, lassen sich auch diese ebenfalls beim gleichen Arbeitsgang mit einbringen, was zu einer weiteren Vereinfachung führt.As can be seen in particular from FIG. 1, the slots 25, 26 in the collector 11 and 12 are each made on the same side in the collector wall 15 and 16, in which the other, the facing ends of the tubes 17, 17a, 17b receiving slots are included, so that all slots including the slots 25, 26 in a clamping of the collector 11, 12 and from the same side, for example in one operation, can be introduced. This simplifies production and leads to time and cost savings. If any slots, notches or the like are desired in the region of the end sections 27 and 28, these can also be introduced in the same operation, which leads to a further simplification.

Es versteht sich, daß aufgrund der beschriebenen besonderen endseitigen Verschlußelemente 21, 22 die Sammler 11, 12 z.B. auch jeweils aus durchgehenden langen Rohren, die als Langteile an gewünschter Stelle mit den Schlitzen zum Einsetzen der Rohre 17, 17a und 17b und den Schlitzen 25, 26 versehen sind, gewonnen werden können, wobei man z.B. jeweils dort, wo eine Durchtrennung zur Gewinnung der einzelnen Rohrabschnitte für die Sammler 11, 12 vorgenommen werden soll, den Schlitzen 25, 26 entsprechende Schlitze vorsieht und damit Sollmarkierungen für das Abtrennen der Sammler 11, 12 von den Langteilen anbringt. Diese Sollmarkierungen können nach dem Ablängen belassen werden, da sie sich im Bereich der Endabschnitte 27, 28 befinden und dort nicht störend sind. Sie können sich z.B. ähnlich den in Fig. 1 endseitig sichtbaren Ausklinkungen darstellen.It goes without saying that, due to the particular end closure elements 21, 22 described, the collectors 11, 12 e.g. can also be obtained in each case from continuous long tubes which are provided as long parts at the desired location with the slots for inserting the tubes 17, 17a and 17b and the slots 25, 26, e.g. in each case where a separation to obtain the individual pipe sections for the collectors 11, 12 is to be carried out, the slots 25, 26 are provided with corresponding slots and thus make predetermined markings for separating the collectors 11, 12 from the long parts. These target markings can be left after being cut to length, since they are located in the region of the end sections 27, 28 and are not disruptive there. You can e.g. similar to the notches visible at the end in FIG. 1.

Auch wenn dies beim Wärmeaustauscher 10 in Fig. 1 bis 4 nicht gezeigt ist, versteht es sich gleichwohl, daß in Abstand vom jeweiligen Ende des Sammlers 11, 12 auch mehrere Trennwände 23, insbesondere Scheiben, z.B. gleicher Art, in den Sammler 11, 12 eingesetzt und darin befestigt werden können, und sei es z.B. nur dazu, im Bereich des Sammlers 11 oder 12 für den Einlaß des Mediums bzw. Auslaß des Mediums eine vom übrigen Inneren 19 bzw. 20 abgeteilte Kammer zu bilden.Even if this is not shown in the heat exchanger 10 in FIGS. 1 to 4, it is nevertheless understood that a plurality of partition walls 23, in particular disks, e.g. same type, can be used in the collector 11, 12 and fixed therein, be it e.g. only to form in the area of the collector 11 or 12 for the inlet of the medium or outlet of the medium a chamber separated from the rest of the interior 19 or 20.

Bei dem in Fig. 5 gezeigten zweiten Ausführungsbeispiel sind für die Teile, die dem ersten Ausführungsbeispiel entsprechen, um 100 größere Bezugszeichen verwendet, so daß dadurch auf die Beschreibung des ersten Ausführungsbeispieles Bezug genommen ist.In the second exemplary embodiment shown in FIG. 5, the parts which correspond to the first exemplary embodiment have been provided with reference numerals which are 100 larger, so that this leads to the description of the first exemplary embodiment Is referenced.

Beim zweiten Ausführungsbeispiel in Fig. 5 hat der dargestellte Sammler 112 die Form eines Rohres 114, das einen eckigen, z.B. viereckigen, und hierbei z.B. quadratischen Rohrquerschnitt aufweist mit vier Sammlerwandungen 135 bis 138, von denen die einander gegenüberliegenden Sammlerwandungen 135 und 137 zueinander parallel verlaufen und ebenfalls die Sammlerwandungen 136 und 138. Der zumindest eine Schlitz 126 befindet sich dabei in der in Fig. 5 oberen Sammlerwandung 138, die der Schlitz 126 durchsetzt. Die Breite des Schlitzes 126 entspricht dabei dem Abstand, den die Innenflächen 132 der schlitzfreien, einander gegenüberliegenden Sammlerwandungen 135 , 137 voneinander haben. Die jeweils zugeordnete Trennwand 123 ist hierbei ebenfalls viereckig, insbesondere rechteckig, und in Richtung des Pfeiles etwa schwertartig in das Viereckrohr 114 durch den Schlitz 126 hindurch einsteckbar. Die Breite der Trennwand 123 entspricht dabei der Breite des Schlitzes 126, d.h. dem Abstand der Innenflächen der Sammlerwandungen 135, 137 voneinander. Die in Einsetzrichtung gemäß Pfeil gemessene Höhe der Trennwand 123 ist jedoch größer als das innere Abstandsmaß der Sammlerwandung 136 von der Sammlerwandung 138, und zwar um die Querschnittsdicke der Sammlerwandung 138 größer als dieses innere Abstandsmaß, so daß bei eingesetzter Trennwand 123 diese mit einem oberen geradlinig verlaufenden Randbereich 129 innerhalb des Schlitzes 126 aufgenommen und beidseitig gefaßt wird, während der übrige Randbereich 130, der sich über die drei übrigen Seiten der Trennwand 123 erstreckt, mit seiner zum Inneren 120 des Rohres 114 weisenden Schmalfläche an der jeweiligen Innenfläche 132 der Sammlerwandungen 135 bis 137 anliegt. Bei der Befestigung der Trennwand 123 durch Löten wird diese im Bereich dieser innen anliegenden Schmalflächen und im Bereich des Randbereiches 129, der beidseitig im Schlitz 126 gefaßt ist, mittels Lot mit dem Rohr 114 verbunden, so daß eine feste und auch dichte Verbindung entsteht.In the second exemplary embodiment in FIG. 5, the illustrated collector 112 has the shape of a tube 114 which has an angular, for example square, and in this case, for example square tube cross section with four collector walls 135 to 138, of which the mutually opposite collector walls 135 and 137 run parallel to one another and likewise the collector walls 136 and 138. The at least one slot 126 is located in the upper collector wall 138 in FIG. 5 through which the slot 126 passes. The width of the slot 126 corresponds to the distance that the inner surfaces 132 of the slot-free, opposing collector walls 135, 137 have from one another. The respectively assigned partition 123 is also quadrangular, in particular rectangular, and can be inserted in the direction of the arrow like a sword into the square tube 114 through the slot 126. The width of the partition 123 corresponds to the width of the slot 126, ie the distance between the inner surfaces of the collector walls 135, 137 from one another. However, the height of the partition 123 measured in the direction of insertion according to the arrow is greater than the inner distance dimension of the collector wall 136 from the collector wall 138, namely by the cross-sectional thickness of the collector wall 138 larger than this inner distance dimension, so that when the partition wall 123 is inserted, it is rectilinear with an upper one extending edge region 129 is received within the slot 126 and gripped on both sides, while the remaining edge region 130, which extends over the three other sides of the partition 123, with its narrow surface facing the interior 120 of the tube 114 on the respective inner surface 132 of the collector walls 135 to 137 is present. When the partition 123 is fastened by soldering, it is soldered to the pipe 114 in the area of these narrow surfaces lying inside and in the area of the edge area 129, which is held in the slot 126 on both sides, so that a firm and also tight connection is produced.

Für das zweite Ausführugnsbeispiel in Fig. 5 gilt gleichermaßen wie für das erste Ausführungsbeispiel in Fig. 1 bis 4 im übrigen auch der Vorteil, daß aufgrund der formschlüssigen Halterung der Trennwand 23, 123 im zugeordneten Schlitz 25, 26 bzw. 126 bereits dadurch eine Festlegung der Trennwand 23, 123 im Sammler 11, 12, 112 erfolgt und von der Trennwand 23, 123 selbst ohne eine sonstige Verbindung mit dem Sammler 11, 12 112 schon relativ große Kräfte aufgenommen und in den Sammler 11, 12, 112 weitergeleitet werden können, die sich bei unter Druck stehendem Medium aus dem auf die Fläche der Trennwand 23, 123 wirkenden Druck des Mediums ergeben. Aufgrund dieses formschlüssigen Halts der Trennwand 23, 123 muß die Lötverbindung diese Kräfte nicht zwingend aufnehmen. Die Gefahr einer etwaigen Undichtigkeit, die aufgrund großer Druckbelastung sonst durch diese stirnseitige Einlötung gegeben sein könnte, entfällt somit.For the second exemplary embodiment in FIG. 5, the same applies as for the first exemplary embodiment in FIGS. 1 to 4, moreover, the advantage that, due to the form-fitting mounting of the partition wall 23, 123 in the associated slot 25, 26 or 126, this already defines it the partition 23, 123 takes place in the collector 11, 12, 112 and the partition 23, 123 can absorb relatively large forces even without any other connection to the collector 11, 12 112 and can be passed on to the collector 11, 12, 112, which result in the medium under pressure from the pressure of the medium acting on the surface of the partition 23, 123. Because of this form-fitting hold of the partition 23, 123, the soldered connection does not necessarily have to absorb these forces. The risk of a possible leak, which could otherwise be caused by this soldering on the face due to high pressure loads, is therefore eliminated.

Bei dem dritten Ausführungsbeispiel in Fig. 6 besteht der Sammler 212 ebenfalls aus einem Rohr 214 mit Viereckquerschnitt. In der Sammlerwandung 238 ist ein Schlitz 226 entsprechend Fig. 5 enthalten. Die Sammlerwandungen 235 und 237 verlaufen zueinander etwa parallel und haben den gleichen Abstand wie in Fig. 5. Zusätzlich zum Schlitz 226 ist jedoch auch noch in der anderen Sammlerwandung 236, die der Sammlerwandung 238 gegenüberliegt, ein weiterer Schlitz 246 enthalten, der genauso breit wie der Schlitz 226 bemessen ist. Die rechteckige Trennwand 223 ist in den Sammler 212 durch den Schlitz 226 und den zweiten Schlitz 246 in Richtung des Pfeiles und somit quer zum Längsverlauf des Sammlers 212 eingesetzt und darin befestigt. Die Breite der Trennwand 223 entspricht dabei dem Abstand der Innenflächen der beiden Sammlerwandungen 235 und 237 voneinander. Die in Einsteckrichtung gemäß Pfeil gemessene Höhe der Trennwand 223 entspricht abweichend vom Ausführungsbeispiel in Fig. 5 jedoch dem Außenmaß, gemessen zwischen der Außenseite der Sammlerwandung 236 und der Sammlerwandung 238, so daß bei eingesteckter Trennwand 223 diese mit dem einen Randbereich 229 im Bereich des Schlitzes 226 aufgenommen wird und mit einem gleichartigen, gegenüberliegenden Randbereich 247 im zweiten Schlitz 246 aufgenommen wird. Hierbei wird somit die eingesetzte Trennwand 223 formschlüssig an beiden Randbereichen 229 und 247 gehalten, die in Abstand voneinander verlaufen, so daß ein noch besserer Halt der Trennwand 223 allein durch Formschluß im Sammler 212 erreicht ist und die der Befestigung dienende Lötverbindung noch weiter von auf die Trennwand 223 wirkenden Kräften entlastet ist. Durch die beiden innerhalb einer Querebene in einer Flucht verlaufenden Schlitze 226 und 246 ist außerdem die Einsteckposition der Trennwand 223 noch genauer vorgegeben und das Einstecken der Trennwand 223 noch weiter erleichtert, weil nicht nur der zuerst durchsetzte Schlitz 226 beim Einsetzen eine Führung bildet, sondern auch der zweite Schlitz 246, der die Sollposition für den anderen Randbereich 247 vorgibt.In the third exemplary embodiment in FIG. 6, the collector 212 likewise consists of a tube 214 with a square cross section. A slot 226 corresponding to FIG. 5 is contained in the collector wall 238. The collector walls 235 and 237 run approximately parallel to one another and have the same distance as in FIG. 5. In addition to the slot 226, however, there is also another slot 246 in the other collector wall 236, which is opposite the collector wall 238, which is as wide as slot 226 is sized. The rectangular partition 223 is inserted into the collector 212 through the slot 226 and the second slot 246 in the direction of the arrow and thus transverse to the longitudinal course of the collector 212 and fastened therein. The width of the partition 223 corresponds to the distance between the inner surfaces of the two collector walls 235 and 237 from one another. The height of the partition 223 measured in the insertion direction according to the arrow, however, deviates from the exemplary embodiment in FIG. 5 but corresponds to the outside dimension, measured between the outside of the collector wall 236 and the collector wall 238, so that when the partition wall 223 is inserted, it is received with one edge region 229 in the region of the slot 226 and with a similar, opposite edge region 247 in the second slot 246. Here, the partition 223 used is positively held at both edge regions 229 and 247, which run at a distance from one another, so that an even better hold of the partition 223 is achieved solely by positive locking in the collector 212 and the soldering connection used for fastening further on Partition 223 acting forces is relieved. Due to the two slots 226 and 246 running in alignment within a transverse plane, the insertion position of the partition wall 223 is also specified more precisely and the insertion of the partition wall 223 is made even easier, because not only the slot 226 penetrated first forms a guide when inserted, but also the second slot 246, which specifies the target position for the other edge area 247.

Das vierte Ausführungsbeispiel in Fig. 7 unterscheidet sich von demjenigen in Fig. 5 allein dadurch, daß die Breite des Schlitzes 326 dem Außenabstand der Sammlerwandungen 335 und 337 voneinander entspricht. Der Schlitz 326 erstreckt sich also beidseitig auch noch über den Querschnittsbereich der Sammlerwandung 335 und 337. In Anpassung daran weist die Trennwand 323 an dem im Schlitz 326 aufgenommenen Randbereich 329 beidseitige abstehende Schultern 350 auf, die ebenfalls noch im Schlitz 326 aufgenommen werden.The fourth exemplary embodiment in FIG. 7 differs from that in FIG. 5 solely in that the width of the slot 326 corresponds to the outer spacing of the collector walls 335 and 337 from one another. The slot 326 thus also extends on both sides over the cross-sectional area of the collector wall 335 and 337. In adaptation to this, the partition wall 323 on the edge area 329 received in the slot 326 has protruding shoulders 350 on both sides, which should also be received in the slot 326.

Es versteht sich, daß auch beim Ausführungsbeispiel in Fig. 7 etwa analog demjenigen in Fig. 6 in der Sammlerwandung 336 bedarfsweise noch ein zweiter Schlitz enthalten sein kann, wobei dann die Trennwand 323 um die Querschnittsdicke der Sammlerwandung 336 höher bemessen ist, so daß im eingesetzten Zustand der Trennwand 323 deren in Fig. 7 unterer Randbereich dann in diesen zweiten Schlitz formschlüssig eingreifen kann.It is understood that in the exemplary embodiment in FIG. 7, approximately analogous to that in FIG. 6, a second slot may also be required in the collector wall 336, in which case the partition wall 323 is dimensioned higher by the cross-sectional thickness of the collector wall 336, so that in inserted state of the partition 323 in FIG. 7 the lower edge area can then engage in a form-fitting manner in this second slot.

Bei allen beschriebenen Ausführungsbeispielen können die Sammler 11, 12 und/oder die Rohre 17, 17a, 17b und auch in Zwischenräumen zwischen den Rohren 17 verlaufende, etwa zickzackförmige Abstrahlelemente 24, z.B. Lamellen, aus einem Material mit gutem Wärmeleitvermögen bestehen, z.B. aus Aluminium, Kupfer, Messing od.dgl.. Gleiches gilt auch für die Verschlußelemente 21, 22 in Form der Trennwände 23. Einzelne oder alle beschriebene Elemente des Wärmeaustauschers können lotplattiert sein, wodurch die Herstellung besonders vereinfacht wird.In all of the exemplary embodiments described, the collectors 11, 12 and / or the tubes 17, 17a, 17b and also approximately zigzag-shaped radiation elements 24, e.g. Slats made of a material with good thermal conductivity, e.g. made of aluminum, copper, brass or the like. The same also applies to the closure elements 21, 22 in the form of the partition walls 23. Individual or all of the described elements of the heat exchanger can be solder-plated, as a result of which the production is particularly simplified.

Claims (20)

  1. Heat exchanger, in particular cooler, for example oil cooler, with two transversely spaced substantially tubular collectors (11, 12) and tubes (17) which extend between the collectors (11, 12) and of which the mutually opposed ends are connected to a respective associated collector (11, 12) so that the interior of the tube communicates with the interior (19, 20) of each collector (11, 12) and a medium which is supplied to a collector can flow through the interior (19) of this collector (11), the interior of the tube and the interior (20) of the other collector in a single flow or multiple flow, the collectors (11, 12) being closed in the region of at least one of their end regions by means of closure elements (21, 22) characterised in that the respective closure element (21, 22) is formed from a partition wall (23; 123; 223; 323) which is inserted into the collector (11, 12, 112, 212, 312) through a slot (25, 26; 126; 226, 246; 326) transversely to the longitudinal course of the collector (11, 12; 112; 212; 312) and is fastened therein.
  2. Heat exchanger according to claim 1, characterised in that the slot (25, 26; 126; 226, 246; 326) passes through only a proportion of the collector wall (15, 16; 135 to 138; 235 to 238; 335 to 338).
  3. Heat exchanger according to claim 1 or 2, characterised in that, for each partition wall (23; 123; 223; 323) in the insertion direction thereof, there are contained one slot (25, 26; 126; 326) or several slots (226 and 246) in the collector wall (15, 16; 135 to 138; 235 to 238; 335 to 338).
  4. Heat exchanger according to one of claims 1 to 3, characterised in that the partition wall (23; 123; 223; 323) is received by a marginal region (29; 129; 229, 247; 329) in the respective slot (25, 26; 126; 226, 246; 326) and is held on both sides and rests, on the remainder of its marginal region (30; 130) not extending in the respective slot (25, 26; 126; 226, 246; 326) on the internal surface (32; 132) of the collector wall (15, 16; 135 to 138; 235 to 238; 335 to 338).
  5. Heat exchanger according to one of claims 1 to 4, characterised in that each partition wall (23; 123; 223; 323) at least substantially corresponds, with respect to the contour course of the marginal region (29; 129; 229, 247; 329) received in the slot (25, 26; 126; 226, 246; 326), to the contour course there of the collector wall (15, 16; 138; 238, 236; 338), in particular to the external surface thereof.
  6. Heat exchanger according to one of claims 1 to 5, characterised in that each partition wall (23; 123; 223; 323) corresponds, with respect to the contour course of the marginal region (30; 130) resting internally on the collector wall (15, 16; 135 to 137; 235, 237; 335 to 337), to the contour course there of the internal surface (32; 132) of the collector wall.
  7. Heat exchanger according to one of claims 1 to 6, characterised in that at least one collector (11, 12) consists of a tube (13, 14) which is round, for example circular in cross section, and the respective partition wall (23) is round, for example circular, in design in adaptation thereto.
  8. Heat exchanger according to one of claims 1 to 7, characterised in that the respective slot (25, 26) is substantially semicircular.
  9. Heat exchanger according to one of claims 1 to 8, characterised in that the respective partition wall (23) has a larger substantially semicircular part (33) and a smaller substantially semicircular part (34) and with the smaller part (34) leading is inserted through the slot (25, 26) into the collector (11, 12) in such a way that the smaller part (34) rests on the internal surface (32) of the collector wall (15, 16) and the larger part (33) is held in the slot (25, 26).
  10. Heat exchanger according to one of claims 1 to 9, characterised in that at least one collector (112; 212; 312) is formed from a polygonal tube (114; 214; 314) which is, for example, quadrilateral in cross section, in particular rectangular or square.
  11. Heat exchanger according to claim 10, characterised in that the slot (126; 226, 246; 326) of which there is at least one passes through the collector wall (138; 238, 236; 338) extending on one side.
  12. Heat exchanger according to claim 10 or 11, characterised in that the slot (226, 246) additionally passes through the collector wall (236) extending on the opposite side.
  13. Heat exchanger according to claim 11 or 12, characterised in that the width of the slot (126; 226, 246; 326) corresponds to the spacing between the internal surfaces of the slot-free mutually opposed collector walls (135, 137; 235, 237; 335, 337).
  14. Heat exchanger according to one of claims 10 to 13, characterised in that the respective partition wall (123; 223; 323) has a width corresponding to the spacing between the internal surfaces of the slot-free mutually opposed collector walls (135, 137; 235, 237; 335, 337).
  15. Heat exchanger according to one of claims 10 to 14, characterised in that the height of the partition wall (123; 223; 323) measured in the insertion direction of each slot (126; 226, 246; 326) to be passed through in the collector wall (138; 238, 236; 338) is greater in size than the internal dimension there of the collector (112; 212; 312) substantially by the cross sectional thickness of the collector wall (138; 238, 236; 338) containing the respective slot.
  16. Heat exchanger according to one of claims 10 to 15, characterised in that the width of the slot (326) corresponds to the external spacing between the collector walls (335, 337) and the partition wall (323) has shoulders (350) which project on each side and are also received in the slot (326) on the marginal region (329) received in the slot (326).
  17. Heat exchanger according to one of claims 1 to 16, characterised in that the respective partition wall (23; 123; 223; 323) is designed as a plate.
  18. Heat exchanger according to one of claims 1 to 17, characterised in that the cross-sectional thickness of the partition wall (23; 123; 223; 323), in particular of the plate, corresponds substantially to the cross-sectional thickness of the collector wall (15, 16; 135 to 138; 235 to 238; 335 to 338).
  19. Heat exchanger according to one of claims 1 to 18, characterised in that the partition wall (23; 123; 223; 323), in particular plate, is fastened in the respective collector (11, 12; 112; 212; 312) by soldering.
  20. Heat exchanger according to one of claims 1 to 19, characterised in that one or more partition walls (23; 12; 223; 323), in particular plates, are inserted into the collector (11, 12; 112; 212; 312) at a distance from the respective end of the collector and are fastened therein.
EP93100595A 1992-04-10 1993-01-16 Heat exchanger, more particularly cooler, e.q. oil cooler Revoked EP0564761B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4212070A DE4212070A1 (en) 1992-04-10 1992-04-10 Heat exchangers, especially coolers, e.g. B. oil cooler
DE4212070 1992-04-10

Publications (3)

Publication Number Publication Date
EP0564761A2 EP0564761A2 (en) 1993-10-13
EP0564761A3 EP0564761A3 (en) 1993-10-27
EP0564761B1 true EP0564761B1 (en) 1995-02-08

Family

ID=6456540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100595A Revoked EP0564761B1 (en) 1992-04-10 1993-01-16 Heat exchanger, more particularly cooler, e.q. oil cooler

Country Status (3)

Country Link
EP (1) EP0564761B1 (en)
AT (1) ATE118271T1 (en)
DE (2) DE4212070A1 (en)

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DE4441503C2 (en) * 1994-11-22 2000-01-05 Behr Gmbh & Co Heat exchangers, in particular for motor vehicles
US5806585A (en) * 1995-02-27 1998-09-15 Mitsubishi Denki Kabushiki Kaisha Heat exchanger, refrigeration system, air conditioner, and method and apparatus for fabricating heat exchanger
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DE19524607C2 (en) * 1995-07-06 1998-12-03 Behr Gmbh & Co Heat exchangers, especially oil-air coolers
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US6179049B1 (en) * 1998-05-18 2001-01-30 Lattimore & Tessmer, Inc. Heat exchanger with an integrated tank and head sheet
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US6067804A (en) * 1999-08-06 2000-05-30 American Standard Inc. Thermosiphonic oil cooler for refrigeration chiller
US6749007B2 (en) 2000-08-25 2004-06-15 Modine Manufacturing Company Compact cooling system with similar flow paths for multiple heat exchangers
DE10041794A1 (en) * 2000-09-16 2002-03-07 Modine Mfg Co Cooling assembly, with a number of chill units, has a connection near the end of the leading and/or final flat tube for the inflow/outflow channels, to give a more compact structure
ATE333082T1 (en) * 2000-08-25 2006-08-15 Modine Mfg Co RADIATOR ARRANGEMENT
DE10041795A1 (en) * 2000-08-25 2002-04-25 Modine Mfg Co cooler arrangement
DE102005048160A1 (en) * 2005-10-06 2007-04-12 Behr Gmbh & Co. Kg A method for manufacturing a refrigeration heat exchanger has one manifold extended at one end to accommodate the inlet and outlet tube endings
DE102015210231A1 (en) * 2015-06-03 2016-12-08 Bayerische Motoren Werke Aktiengesellschaft Heat exchanger for a cooling system, cooling system and assembly
CN214582619U (en) * 2020-12-30 2021-11-02 丹佛斯有限公司 Heat exchanger

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DE102010028867A1 (en) 2010-05-11 2011-11-17 Behr Gmbh & Co. Kg Heat exchanger i.e. heating element, for air-conditioner of motor car, has side piece arranged between upper and lower collecting boxes, and nozzle arranged in side piece and equipped adjacent to outlet pipe in area of upper collecting box

Also Published As

Publication number Publication date
ATE118271T1 (en) 1995-02-15
DE4212070A1 (en) 1993-10-14
DE59300077D1 (en) 1995-03-23
EP0564761A3 (en) 1993-10-27
EP0564761A2 (en) 1993-10-13

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