EP1678455B1 - Echangeur de chaleur a plaques empilees, en particulier refroidisseur d'huile pour vehicules automobiles - Google Patents

Echangeur de chaleur a plaques empilees, en particulier refroidisseur d'huile pour vehicules automobiles Download PDF

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Publication number
EP1678455B1
EP1678455B1 EP04765077.5A EP04765077A EP1678455B1 EP 1678455 B1 EP1678455 B1 EP 1678455B1 EP 04765077 A EP04765077 A EP 04765077A EP 1678455 B1 EP1678455 B1 EP 1678455B1
Authority
EP
European Patent Office
Prior art keywords
plate
stacked
heat exchanger
turbulence
metal
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.)
Not-in-force
Application number
EP04765077.5A
Other languages
German (de)
English (en)
Other versions
EP1678455A1 (fr
Inventor
Jens Richter
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr GmbH and Co KG
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
Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP1678455A1 publication Critical patent/EP1678455A1/fr
Application granted granted Critical
Publication of EP1678455B1 publication Critical patent/EP1678455B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • F28F3/027—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/916—Oil cooler

Definitions

  • the invention relates to a stacked plate heat exchanger, in particular an oil cooler for motor vehicles, according to the preamble of patent claim 1.
  • Stacked plate heat exchangers particularly oil / coolant coolers for internal combustion engines of motor vehicles, have been known by various references of the applicants, e.g. B. by the DE-A 43 14 808 , the DE-A 195 11 991 or the DE-A 197 50 748 ,
  • the Stapetschefbentownubertrager also called Plaften139übertrager, consist of a variety of trough-shaped stacking disks and optionally turbulence inserts, which are placed inside each other and stacked into a block.
  • the stacking disks usually have a rectangular shape - circular but are also known - with four through holes, two each for a flow medium, which are arranged in the corner regions of the stacking disks.
  • the stack disks form flow channels with the turbulence inserts, while the passage openings form manifolds or manifolds communicating with either the first or second flow media.
  • the partitioning of the two different flow channels, ie the different flow media, takes place in that two of the through openings are each arranged raised in an annular shape, which is soldered to the adjacent, in this area flat stacking disk.
  • the turbulence inserts increase the heat transfer capability, in particular that of oil; on the other hand, they serve as tie rods against the internal pressure which builds up during operation, which can amount to approximately 6 to 10 bar in the case of oil coolers.
  • a problem in the dimensioning of the stacked plate heat exchanger are each the outermost, so the upper and the lower flow channel, since they are to be regarded as the weakest link in terms of internal pressure load. While in the internal flow channels, a pressure equalization, this is not the case with the outer flow channels. In addition, in the area of the through-openings, the tension-anchoring effect of the turbulence sheets is impaired as a result of the blank of the turbulence sheets and the characteristics in the stack disks, so that the full internal pressure resistance is not given here.
  • Such reinforcing plates or increased wall thickness mean additional weight and increased production costs.
  • the DE 2 061 825 A discloses a plate heat exchanger from Plattenober- and divide with turbulence plates in between, in which the upper or lower part of the edge of a flow opening is formed as an annular shape for receiving intermediate rings.
  • a thin intermediate plate is arranged with the hole pattern of the turbulence plate, and both with the turbulence plate as well as with the cover plate, the stacking disc and / or the bottom plate is soldered.
  • an intermediate plate between the topmost turbulence plate and the cover plate is inserted, which has the blank and the hole pattern of the turbulence insert and is soldered to the latter and with the cover plate.
  • This achieves the advantage that a higher internal pressure resistance is achieved in the region of these openings, in particular in the region of the passage openings or of the distributor or collecting channels.
  • the top Turbulenzialechech soldered at its top with the intermediate plate and advantageously also the intermediate plate with the cover plate, whereby a Switzerlandanker Angel is produced, which has an increase in strength result.
  • a pressure equalization takes place on the intermediate plate in the calculatorsberelch the through hole.
  • Fig. 1 shows the structure of a stacked-plate oil cooler 1, which is composed of a plurality of stacking disks 2 and arranged between them turbulence plates 3 (turbulence inserts).
  • the stacked-plate oil cooler 1 is closed by a bottom plate 4 and a cover plate 5. Between the uppermost turbulence plate 3 and the cover plate 5, an intermediate plate 6 is inserted soft in connection with the description of Fig. 5 is explained in more detail. Connections for the oil and a liquid
  • Coolants are arranged in the bottom plate 4, but not visible or not shown - they correspond to the aforementioned prior art.
  • the cover plate 5, however, is closed; it has indentations 10, 12, as will be described later.
  • Fig. 2 shows one of the stacking disks 2, which is formed trough-shaped and has a substantially planar bottom 2a, a circumferential raised edge 2b, first through holes 7 and second through holes 8, which are respectively arranged in the corner regions of the approximately rectangularly shaped stacking disk 2. While the first through holes 7 are arranged in the plane of the bottom 2a, the second through holes 8 are raised relative to the bottom 2a and arranged in an annular shape 9.
  • the first passage openings 7 and the second passage openings 8 form, stacked on one another and soldered, distribution and collecting channels (7a, 8a, cf. Fig. 5 ) for the first flow medium, z.
  • Fig. 3 shows one of the turbulence inserts 3, which is inserted into the stacking disk 2 and therefore has the same outer blank and the same hole pattern with first through holes 7 and second through holes 8 'corresponding in diameter to the annular shapes 9 and thus are larger than the through holes 8 ,
  • the Turbulenzbiech 3 is known from the prior art and serves to improve the heat transfer, especially on the oil side and the increase of the internal pressure resistance by Glasankerwirkuhg.
  • Fig. 4 shows the Stapeiular 2 with inserted turbulence plate 3, wherein the annular shapes 9 are exposed with its upper side.
  • this stacking disk 2 with turbulence plate 3 inserted further stacking disks and turbulence sheets are alternately stacked on top of each other, whereby alternating flow channels are formed for the oil and the cooling agent, which are separated from one another by the soldering of the stacking disks.
  • Fig. 4 shows an upwardly covered flow channel for the medium oil, wherein the oil enters via one of the two through holes 7 in the Strömuhgskanal, this approximately diagonally traversed by the turbulence plate 3 and on the other, diametrically opposite passage opening 7 occurs again.
  • the oil flow channel is covered by a stacking disk, not shown, which is formed in the region of the first through-holes 7 annular shapes and in the region of the through holes 8 flat, so that a Verlöturig takes place in the region of the annular surface 9.
  • Fig. 5 shows a cross section through the uppermost portion of the stacked plate oil cooler according to Fig. 1 , wherein like reference numerals are used for like parts.
  • the section is laid transversely through the two front through-holes 8, 7, which, arranged one above the other, form a distributor channel 8a for the coolant and a distributor channel 7a for the oil.
  • the top stacking disk 2 is shown, which has the annular shape formed in the region of the through hole 8 9.
  • the passage opening 7 is arranged in the flat bottom area 2a, ie offset in height relative to the passage opening 8.
  • a turbulence plate 3 is placed on the floor area 2a, which section 9 in the area of the extent 'and in the region of the passage opening 7 the cutout 7 (the like. Fig. 3 ) having.
  • the intermediate plate 6 (see. Fig. 1 ), which has the same hole pattern as the stacking disk 2.
  • This intermediate plate 3 is formed relatively thin and has, for example, a wall thickness of 0.1 to 0.5 mm, including a double-sided Lotplatt réelle on.
  • the cover plate 5 is placed, which forms the conclusion of the stacked plate oil cooler 1 upwards, wherein the cover plate 5 is closed in this embodiment, ie, all first and second through holes 7, 8 (four total) closes.
  • Cover plate 5, intermediate plate 6, turbulence plate 3 and the topmost stacking disc 2 are soldered together at their contact points.
  • the cover plate 5 has in the region of the passage openings 8 dome-like, inwardly directed indentations 10, which protrude into the manifolds or collecting channels 8a.
  • the cover plate 5 has outward-pointing forms 11, which each have a dome-shaped, inwardly directed impression 12 in their central region.
  • the distribution or collection channel 7a has a diameter D1 and extends through the turbulence plate 3 and the intermediate plate 6.
  • annular gap 13 is formed, which has a participatdruchmesser D2, the larger as the diameter D1 of the distribution or collection channel 7a, about 10 mm larger.
  • the annular gap 13 communicates with the channel 7a, whereby a pressure equalization with the adjacent, not shown oil flow channel is made.
  • the intermediate plate 6 is therefore relieved in the region of the annular surface between the diameters D2 - D1.
  • the pressure forces arising from the internal pressure are introduced directly into the end plate 5 via the composite of soldered turbulence plate 3 and intermediate plate 6 outside the diameter range D2.
  • the turbulence plate 3 thus acts in conjunction with the intermediate plate 6 as a sandwich component with an increased compressive and bending strength.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Claims (7)

  1. Echangeur de chaleur à plaques empilées, en particulier refroidisseur d'huile pour véhicules automobiles, se composant alternativement de plaques empilées (2) en forme de cuvettes et de tôles génératrices de turbulences (3), empilées les unes sur les autres et les unes dans les autres, pour former un bloc, plaques empilées et tôles génératrices de turbulences qui présentent à chaque fois des premières et des deuxièmes ouvertures de passage (7, 8) servant à la formation de conduits distributeurs et collecteurs (7a, 8a) et qui sont brasées les unes aux autres pour la formation de premiers et de deuxièmes conduits d'écoulement, où les tôles génératrices de turbulences (3) forment des tirants d'ancrage entre les plaques empilées (2), et le bloc est fermé par une plaque de fond (4) et par une plaque de recouvrement (5), caractérisé en ce qu'une mince tôle intercalaire (6), ayant la configuration de perçage de la tôle génératrice de turbulences (3), est disposée entre au moins une tôle génératrice de turbulences (3) et une plaque empilée et / ou entre une tôle génératrice de turbulences et la plaque de recouvrement et / ou entre une tôle génératrice de turbulences et la plaque de fond (4) et brasée aussi bien avec la tôle génératrice de turbulences (3) ainsi qu'avec la plaque de recouvrement, la plaque empilée et / ou avec la plaque de fond.
  2. Echangeur de chaleur à plaques empilées selon la revendication 1, caractérisé en ce que la tôle intercalaire (6) est disposée entre la tôle génératrice de turbulences (3), placée tout en haut de la pile, et la plaque de recouvrement (5), et brasée aussi bien avec la tôle génératrice de turbulences (3) qu'avec la plaque de recouvrement (5).
  3. Echangeur de chaleur à plaques empilées selon la revendication 2, caractérisé en ce que les plaques empilées (2) présentent à chaque fois une surface (2a) pratiquement plane et des parties matricées en saillie (9) en forme d'anneau de cercle, et en ce que les premières ouvertures de passage (7) placées dans la surface pratiquement plane (2a) et les deuxièmes ouvertures de passage (8) formées dans les parties matricées en saillie (9), en forme d'anneau de cercle, sont disposées en relief et fermées vers l'extérieur, au moins partiellement, par la plaque de recouvrement (5), et en ce qu'une partie matricée en saillie (11) dirigée vers l'extérieur est disposée, dans la plaque de recouvrement (5), de façon concentrique par rapport aux premières ouvertures de passage (7), et un interstice annulaire (13) est laissé entre la partie matricée en saillie (11) et la mince tôle intercalaire (6).
  4. Echangeur de chaleur à plaques empilées selon la revendication 2 ou 3, caractérisé en ce que la plaque de recouvrement (5) est brasée, dans la zone des deuxièmes ouvertures de passage (8), avec la tôle intercalaire (6).
  5. Echangeur de chaleur à plaques empilées selon la revendication 2, 3 ou 4, caractérisé en ce que la tôle intercalaire (6) présente une épaisseur de paroi allant de 0,1 mm à 0,5 mm et est plaquée par brasage de préférence des deux côtés.
  6. Echangeur de chaleur à plaques empilées selon l'une quelconque des revendications 2 à 5, caractérisé en ce que les ouvertures de passage (7) présentent un diamètre intérieur D1 et la partie matricée en saillie (11) présente un diamètre intérieur D2, où D2 est à peu près de 10 mm plus grand que D1.
  7. Echangeur de chaleur à plaques empilées selon l'une quelconque des revendications 2 à 6, caractérisé en ce que la plaque de recouvrement (5) présente, dans la zone des ouvertures de passage (7, 8), des parties matricées en creux (10, 12), concentriques et en forme de calotte.
EP04765077.5A 2003-10-17 2004-09-10 Echangeur de chaleur a plaques empilees, en particulier refroidisseur d'huile pour vehicules automobiles Not-in-force EP1678455B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10349141A DE10349141A1 (de) 2003-10-17 2003-10-17 Stapelscheibenwärmeübertrager, insbesondere Ölkühler für Kraftfahrzeuge
PCT/EP2004/010152 WO2005038377A1 (fr) 2003-10-17 2004-09-10 Echangeur de chaleur a plaques empilees, en particulier refroidisseur d'huile pour vehicules automobiles

Publications (2)

Publication Number Publication Date
EP1678455A1 EP1678455A1 (fr) 2006-07-12
EP1678455B1 true EP1678455B1 (fr) 2016-11-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765077.5A Not-in-force EP1678455B1 (fr) 2003-10-17 2004-09-10 Echangeur de chaleur a plaques empilees, en particulier refroidisseur d'huile pour vehicules automobiles

Country Status (5)

Country Link
US (1) US7717164B2 (fr)
EP (1) EP1678455B1 (fr)
KR (1) KR101119543B1 (fr)
DE (1) DE10349141A1 (fr)
WO (1) WO2005038377A1 (fr)

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US20070023175A1 (en) 2007-02-01
KR20060113896A (ko) 2006-11-03
DE10349141A1 (de) 2005-05-12
US7717164B2 (en) 2010-05-18
KR101119543B1 (ko) 2012-02-22
EP1678455A1 (fr) 2006-07-12
WO2005038377A1 (fr) 2005-04-28

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