EP1678455A1 - 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

Info

Publication number
EP1678455A1
EP1678455A1 EP04765077A EP04765077A EP1678455A1 EP 1678455 A1 EP1678455 A1 EP 1678455A1 EP 04765077 A EP04765077 A EP 04765077A EP 04765077 A EP04765077 A EP 04765077A EP 1678455 A1 EP1678455 A1 EP 1678455A1
Authority
EP
European Patent Office
Prior art keywords
plate
stacked
turbulence
openings
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04765077A
Other languages
German (de)
English (en)
Other versions
EP1678455B1 (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
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 Behr GmbH and Co KG filed Critical 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
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 disk heat exchanger, in particular an oil cooler for motor vehicles, in particular according to the preamble of patent claim 1.
  • Stacked disk heat exchangers in particular oil / coolant coolers for internal combustion engines of motor vehicles, have been disclosed by various publications by the applicant, e.g. B. by DE-A 43 14 808, the
  • the stacked disk heat exchangers also called plate heat exchangers, consist of a multiplicity of trough-shaped stacked disks and optionally turbulence inserts which are placed one inside the other and stacked to form a block.
  • the stacking disks usually have a rectangular shape - but circular ones are also known - with four through openings, two each for a flow medium, which are arranged in the corner regions of the stacking disks.
  • the stacked disks form flow channels with the turbulence inserts, while the through openings form distribution or collection channels which are connected either to the first or to the second flow medium.
  • the two different flow channels that is to say the different flow media, are partitioned off in that two of the through-openings are each raised in an annular shape which is soldered to the adjacent stacking disk which is flat in this area.
  • the turbulence On the one hand, layers increase the heat transfer capacity, in particular that of oil, on the other hand they serve as tie rods against the internal pressure that builds up during operation, which can be approx. 6 to 10 bar in oil coolers.
  • disk heat exchangers for cooling exhaust gas or charge air e.g. B. by the above-mentioned DE-A 195 11 991.
  • the outermost, ie the upper and the lower, flow channels each pose a problem in the dimensioning of the stacked disk heat exchangers, since they can be regarded as the weakest link with regard to the internal pressure load. While there is pressure equalization in the inner flow channels, this is not the case in the outer flow channels.
  • the tension anchor effect of the turbulence plates is impaired in the area of the passage openings due to the cut of the turbulence plates and the characteristics of the stacking disks, so that the full internal pressure resistance is not provided here.
  • the upper and lower end plates have therefore been provided with a greater wall thickness or - as described in DE-A 197 11 258 - with a reinforcing plate between the lowest stacking disc and a base plate. Such reinforcing plates or increased wall thickness mean additional weight and increased manufacturing costs.
  • a thin intermediate plate is inserted between the uppermost turbulence insert and the cover plate, which has the cut and the hole pattern of the turbulence insert and is soldered to the latter and to the cover plate.
  • This has the advantage that, particularly in the area of the passage openings or the distributor or seed channels, a higher internal pressure resistance is achieved in the area of these openings.
  • the uppermost turbulence insert is soldered on its upper side to the intermediate plate and advantageously also the intermediate plate to the cover plate, with which an additional anchor effect is produced, which results in an increase in strength.
  • the cover plate in the area of the through openings in a concentric arrangement has an outward-pointing configuration such that a cavity in the form of an annular gap is formed between the intermediate plate and the cover plate.
  • a cavity in the form of an annular gap is formed between the intermediate plate and the cover plate.
  • FIG. 1 shows the structure of a stacked disc oil cooler, partly in an exploded view
  • FIG. 2 shows a stacked disc of the stacked disc oil cooler according to FIG. 1
  • FIG. 3 shows a turbulence plate
  • FIG. 4 shows the turbulence plate according to FIG. 3, inserted into the stacking disc according to FIG. 2 and
  • Fig. 5 shows a cross section through the uppermost part of the stacked disc oil cooler with intermediate plate.
  • a stacked disc oil cooler 1 shows the structure of a stacked disc oil cooler 1, which is composed of a plurality of stacked discs 2 and turbulence plates 3 (turbulence inserts) arranged between them.
  • the stacked disc oil cooler 1 is closed off by a base plate 4 and a cover plate 5.
  • An intermediate plate 6 is inserted between the uppermost turbulence plate 3 and the cover plate 5, which is explained in more detail in connection with the description of FIG. 5.
  • Connections for the oil and a liquid Coolants are arranged in the base plate 4, but are not visible or not shown - they correspond to the prior art mentioned at the beginning.
  • the cover slat 5, however, is closed; as will be described later, it has impressions 10, 12.
  • first through openings 7 and second through openings 8 which are each arranged in the corner regions of the approximately rectangular stacking disk 2. While the first through openings 7 are arranged in the plane of the bottom 2a, the second through openings 8 are raised relative to the bottom 2a and are arranged in an annular shape 9.
  • Fig. 3 shows one of the turbulence inserts 3, which is inserted into the stacking disc 2 and therefore has the same outer cut and the same hole pattern with first through openings 7 and second through openings 8 ', the diameter of which corresponds to the annular features 9 and thus larger than that Through openings 8 are.
  • the turbulence plate 3 is known from the prior art and serves to improve the heat transfer, in particular on the oil side, and to increase the internal pressure resistance by means of a tie rod effect.
  • Fig. 4 shows the stacking disc 2 with inserted turbulence plate 3, the annular features 9 being exposed with their upper side.
  • this stacking disc 2 with inserted turbulence plate 3 further stacking discs and turbulence plates are alternately stacked on top of one another, as a result of which flow channels for the oil and the coolant are alternately formed, which are separated from one another by the soldering of the stacking discs.
  • 4 shows a flow channel for the medium oil, which is covered at the top, the oil entering the flow channel via one of the two passage openings 7, crossing it approximately diagonally through the turbulence plate 3 and exiting again via the other diametrically opposite passage opening 7.
  • the oil flow channel is covered by a stacking disk, not shown, which is circular in the area of the first through openings 7 and flat in the area of the through openings 8, so that soldering takes place in the area of the annular surface 9.
  • FIG. 5 shows a cross section through the uppermost region of the stacked disc oil cooler according to FIG. 1, the same reference numerals being used for the same parts.
  • the cut is made transversely through the two front through openings 8, 7, which, arranged one above the other, form a distributor or collector channel 8a for the coolant and a distributor or collector channel 7a for the oil.
  • the uppermost stacking disk 2 is shown completely, which has the circular-shaped design 9 in the area of the passage opening 8.
  • the through opening 7 is arranged in the flat bottom region 2a, that is to say offset in height from the through opening 8.
  • a turbulence plate 3 is placed on the bottom region 2a, which has the cutout 8 in the region of the expression 9 'and in the area of the passage opening 7 has the cutout 7 (see FIG. 3).
  • the intermediate plate 6 (see FIG. 1) is arranged above the turbulence plate 3 and has the same hole pattern as the stacking plate 2.
  • This intermediate plate 3 is made relatively thin and has, for example, a wall thickness of 0.1 to 0.5 mm including solder plating on both sides.
  • the cover plate 5 is placed on the intermediate plate 6 and forms the end of the stacked disc oil cooler 1, the cover plate 5 being closed in this exemplary embodiment, ie closing all the first and second through openings 7, 8 (a total of four).
  • Cover plate 5, intermediate plate 6, turbulence plate 3 and the top stacking disc 2 are soldered together at their contact points.
  • the cover plate 5 has 8 in the area of the passage openings Lotte-like, inwardly directed embossments 10, which protrude into the distributor or collecting channels 8a.
  • the cover plate 5 has outward-directed features 11, each of which has a dome-shaped, inward-facing shape 12 in its central area.
  • the distributor or collecting duct 7a has a diameter D1 and extends through the turbulence plate 3 and the intermediate plate 6.
  • annular gap 13 is formed, which has an outer diameter D2 that is larger than the diameter D1 of the distributor or collecting channel 7a is approximately 10 mm larger.
  • the annular gap 13 communicates with the channel 7a, as a result of which pressure compensation is established with the adjacent oil flow channel, not shown.
  • the intermediate plate 6 is therefore relieved in the area 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 connection with the intermediate plate 6 like a sandwich component with increased pressure and bending strength.

Landscapes

  • 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)

Abstract

L'invention concerne un échangeur de chaleur à plaques empilées (1), en particulier un refroidisseur d'huile pour véhicules automobiles, lequel échangeur est composé de plaques en cuvette, empilées alternativement l'une sur l'autre et l'une dans l'autre en un bloc, et de tôles à turbulence (3), présentant respectivement des première et seconde ouvertures de passage (7, 8) pour la formation de canaux distributeurs et collecteurs et soudées les unes aux autres pour former des premier et second canaux d'écoulement, lesdites tôles à turbulence (3) formant des entretoises entre les plaques empilées et le bloc étant fermé par une plaque de base (4) et une plaque de recouvrement (5).
EP04765077.5A 2003-10-17 2004-09-10 Echangeur de chaleur a plaques empilees, en particulier refroidisseur d'huile pour vehicules automobiles Expired - Lifetime 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 true EP1678455A1 (fr) 2006-07-12
EP1678455B1 EP1678455B1 (fr) 2016-11-09

Family

ID=34428513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765077.5A Expired - Lifetime 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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Also Published As

Publication number Publication date
US20070023175A1 (en) 2007-02-01
US7717164B2 (en) 2010-05-18
KR101119543B1 (ko) 2012-02-22
KR20060113896A (ko) 2006-11-03
WO2005038377A1 (fr) 2005-04-28
EP1678455B1 (fr) 2016-11-09
DE10349141A1 (de) 2005-05-12

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