EP2098813A2 - Procédé de fabrication de dispositifs de transmission de chaleur - Google Patents

Procédé de fabrication de dispositifs de transmission de chaleur Download PDF

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Publication number
EP2098813A2
EP2098813A2 EP09150894A EP09150894A EP2098813A2 EP 2098813 A2 EP2098813 A2 EP 2098813A2 EP 09150894 A EP09150894 A EP 09150894A EP 09150894 A EP09150894 A EP 09150894A EP 2098813 A2 EP2098813 A2 EP 2098813A2
Authority
EP
European Patent Office
Prior art keywords
housing
heat transfer
parts
inner housing
transfer devices
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.)
Withdrawn
Application number
EP09150894A
Other languages
German (de)
English (en)
Other versions
EP2098813A3 (fr
Inventor
Andreas Trawinski
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP2098813A2 publication Critical patent/EP2098813A2/fr
Publication of EP2098813A3 publication Critical patent/EP2098813A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • 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
    • 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
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F28F2255/143—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded injection molded

Definitions

  • the invention relates to a method for producing heat transfer devices with U-shaped flow-through inner housing, which are each composed of an upper part and a lower part and with outer housings which are arranged around the inner housing, that between the inner housings and the outer housings each a coolant channel is formed , wherein at least one of the inner housing or outer housing is produced by die-casting.
  • Heat transfer devices are well known using different manufacturing methods. Especially in the field of automotive and engine technology, heat transfer devices are becoming increasingly important. They are used both for cooling recirculated exhaust gas and for charge air cooling or oil cooling. By using such heat transfer devices, for example, the temperature of the gas guided to the cylinder can be reduced and thus the filling of the cylinders and the efficiency of the internal combustion engines can be improved.
  • heat transfer devices Among other methods of making heat transfer devices, it is known to mold die-cast shells having fins formed thereon into heat transfer devices.
  • the use of die-cast aluminum to produce such heat transfer devices has the advantages of high cooling efficiencies while cost-effectively manufacturing.
  • a heat transfer device having a U-shaped flow-through housing, so that input and Outlet of the gas to be cooled at the head side of the heat transfer device are arranged side by side.
  • This heat transfer device is constructed of an inner housing and an outer housing, which are pushed into each other. Both the outer housing and the inner housing consist of a top and a lower part, which are joined together by welding prior to assembly of the inner housing with the outer housing.
  • the inner housing disclosed here has at its upper part and at its lower part in each of the projecting through the gas to be cooled channel ribs, which extend in cross section of the inner housing alternately from the upper parts or from the lower part into the channel.
  • the upper part is designed lid-shaped, while the lower part has a pot shape.
  • Such an embodiment thus has the disadvantages that additional slides must be used in a second processing level, resulting in additional costs.
  • the rib spacing in the region of the inlet and outlet must be chosen to be relatively large, since for reasons of strength, the distance between the ribs of a part must not be chosen too small. While ribs of the top and bottom alternately point into the channel after assembly in the region of the lid to keep the fin spacing small, such an embodiment includes ribs extending into the channel from above in the region of the inlet or outlet such a production is not possible.
  • the efficiency of the heat transfer device should also be improved.
  • a first housing part in which two lower parts of the inner housing or the outer housing are formed, is manufactured in a die-casting process, wherein the two lower parts are arranged at their top sides, on which the inlets and outlets of the inner housings, are connected together in a common cross-section and in a later method step, the first housing part is separated along the common cross-section.
  • a second housing part in which two upper parts of the inner housing or the outer housing are formed, produced in a die-casting process, wherein the two upper parts at their top sides, where the entries and exits of the inner housing are arranged, in a common cross-section with each other are connected, then the first and the second housing part placed on each other and the two housing parts are interconnected, whereby two inner housing or outer housing are formed, which are arranged at their respective head sides, where the inlets and outlets of the inner housing in the common cross section and then the first is separated with the second housing part along the common cross-section of the inner housing or the outer housing.
  • the separation of the housing parts takes place mechanically, in particular by sawing. Such a separation is easy to carry out without great expense.
  • connection of the two housing parts by welding, in particular friction stir welding, which is particularly suitable when connecting two parts in die-cast aluminum and leads to leakage-free components.
  • the pressure casting molds of the two housing parts of the inner housing are formed such that extend from the upper parts and the lower parts in cross section of the inner housing in all rows of ribs alternately ribs in the limited by the inner housing channels.
  • the upper part of the inner housing is designed so that the ribs of the upper part protrude into the intermediate space between the ribs of the lower part.
  • the two lower parts 2, 3 lie with their respective head side 6, are formed at the entrances 7 and 8 outlets of the two lower parts 2, 3, against each other.
  • This head side 6 is thus open after a separation of the two lower parts 2, 3.
  • gas can flow through the channel 20 as far as a deflection 21 and from there flow back to the outlet 8.
  • a central wall 9 separates the inflowing gas flow from the outflowing gas flow, so that the incoming gas is forced to flow through this lower part 2, 3 in a U-shaped manner.
  • the head sides 6 of the two lower parts 2, 3 thus have a common cross-section 10, in which the inlets 7 and 8 outlets are arranged and on which the two lower parts 2, 3 can be separated from each other.
  • a separation is preferably carried out mechanically, for example by sawing or the like.
  • FIG. 2 shows in addition to the first housing part 1, a second housing part 11, in which two to the lower parts 2, 3 from FIG. 1 matching tops 12, 13 are formed.
  • a second housing part 11 in which two to the lower parts 2, 3 from FIG. 1 matching tops 12, 13 are formed.
  • the upper parts only the slides in the indicated arrow directions 4, 5 can be removed from the die-cast part during the die-casting process. Lateral slides are not needed.
  • FIG. 3 It can be seen that in the second housing part 11, in the two upper parts 12, 13, in each case a groove 14 is formed, into which later the middle walls 9 of the lower parts 2, 3 extend, so that a closed over the entire height middle wall to U shaped forced flow of the heat transfer device can be achieved.
  • each first rib 17 protrudes from the lower part 2, 3 into the channel 20 and every second rib 22 protrudes from the upper part 12, 13 into the channel 20.
  • a production by die casting are the resulting small distances between the ribs 17, 22 in one of the two parts not possible because a Schieberentformung at such small distances to the rupture of the ribs 17, 22 would result.
  • the method used here for producing such heat transfer devices now has the steps of initially producing the first housing part 1 with the two lower parts 2, 3 formed therein by die casting and subsequently or simultaneously a correspondingly fitting second housing part 11 with the upper parts 12, 13 , is produced by die-casting, in each case only two slides are used, which are removed in the opposite direction from the workpiece.
  • the two housing parts 1, 11 are then placed on each other and joined together by welding, in particular by friction stir welding, whereby two inner housing 18, 19 are formed. It is clear that the resulting weld over both lower parts 2, 3 and tops 12, 13 can be performed in a single pass completely circumferential. A placement or discontinuation of a corresponding tool is no longer necessary here. Also, no weld ends on the head sides 6, as would be the case with such a construction, when the lower and upper shells 2, 3; 12, 13 would be poured individually. Such weld ends are to be avoided since no straight closed head side 6 would be reached. Also, component resistance problems would occur when performing a friction stir weld. In the embodiment shown, this strength is achieved by the directly adjacent second inner or outer housing 18, 19, so that two inner housing 18, 19 can be made with a weld.
  • an unillustrated outer housing can be produced, which is also designed in two parts, that consists of a lower part and a shell. These could also be welded together in the same way and then separated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
EP09150894A 2008-03-06 2009-01-20 Procédé de fabrication de dispositifs de transmission de chaleur Withdrawn EP2098813A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008012930A DE102008012930B3 (de) 2008-03-06 2008-03-06 Verfahren zur Herstellung von Wärmeübertragungsvorrichtungen

Publications (2)

Publication Number Publication Date
EP2098813A2 true EP2098813A2 (fr) 2009-09-09
EP2098813A3 EP2098813A3 (fr) 2011-10-19

Family

ID=40586165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09150894A Withdrawn EP2098813A3 (fr) 2008-03-06 2009-01-20 Procédé de fabrication de dispositifs de transmission de chaleur

Country Status (2)

Country Link
EP (1) EP2098813A3 (fr)
DE (1) DE102008012930B3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023682A1 (de) * 2010-06-14 2011-12-15 Pierburg Gmbh Wärmetauschervorrichtung und ein Verfahren zur Herstellung einer Wärmetauschervorrichtung
JP2014516151A (ja) * 2011-05-24 2014-07-07 ピールブルク ゲゼルシャフト ミット ベシュレンクテル ハフツング 熱伝達装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008049253B4 (de) * 2008-09-26 2012-12-20 Pierburg Gmbh Kfz-Abgaskühler
DE102009039833A1 (de) * 2009-09-03 2011-03-10 Pierburg Gmbh Wärmeübertragungsvorrichtung sowie Verfahren zur Herstellung einer derartigen Wärmeübertragungsvorrichtung
DE102009052281A1 (de) * 2009-11-09 2011-05-19 Pierburg Gmbh Wärmeübertragungsvorrichtung und Verfahren zur Herstellung einer derartigen Wärmeübertragungsvorrichtung
DE102009055931A1 (de) * 2009-11-27 2011-06-01 Pierburg Gmbh Wärmeübertragungsvorrichtung sowie Wärmeübertragungsvorproduktanordnung und Verfahren zur Herstellung einer derartigen Wärmeübertragungsvorrichtung
DE102010007124B4 (de) * 2010-02-05 2014-04-10 Pierburg Gmbh Wärmeübertragungsvorrichtung sowie Anordnung zur Abgasrückführung mit einer derartigen Wärmeübertragungsvorrichtung
DE102011002053A1 (de) 2011-04-14 2012-10-18 Pierburg Gmbh Wärmetauscher für eine Verbrennungskraftmaschine sowie Verfahren zur Herstellung eines derartigen Wärmetauschers
DE102011053421A1 (de) * 2011-09-09 2013-03-14 Pierburg Gmbh Vorprodukt eines Gehäuseteils, Innengehäuse, Wärmeübertragungsvorrichtung und Verfahren zur Herstellung eines derartigen Innengehäuses und einer derartigen Wärmeübertragungsvorrichtung
DE102016201395A1 (de) * 2016-01-29 2017-08-03 Mahle International Gmbh Verfahren zur Herstellung einer Wärmetauschereinrichtung
DE102016221237A1 (de) * 2016-10-27 2018-05-03 Mahle International Gmbh Verdrängerpumpe zum Fördern eines Fluids
DE102018119034A1 (de) * 2018-08-06 2020-02-06 Webasto SE Wärmeübertrager

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058204A1 (de) 2005-12-02 2007-06-14 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3950202A (en) * 1973-06-11 1976-04-13 Hodges William E Method of making a composite natural stone veneer product
DE10103543A1 (de) * 2001-01-26 2002-08-14 Festo Ag & Co Schraube, Verfahren zur Schraubenherstellung und aus mehreren Schrauben bestehender Schraubenstrang
US7691315B2 (en) * 2005-07-18 2010-04-06 T.F.H. Publications, Inc. Injection mold having cavities in series

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058204A1 (de) 2005-12-02 2007-06-14 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023682A1 (de) * 2010-06-14 2011-12-15 Pierburg Gmbh Wärmetauschervorrichtung und ein Verfahren zur Herstellung einer Wärmetauschervorrichtung
EP2405222A3 (fr) * 2010-06-14 2014-08-06 Pierburg GmbH Dispositif d'échange de chaleur et procédé de fabrication d'un dispositif d'échange de chaleur
JP2014516151A (ja) * 2011-05-24 2014-07-07 ピールブルク ゲゼルシャフト ミット ベシュレンクテル ハフツング 熱伝達装置

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Publication number Publication date
EP2098813A3 (fr) 2011-10-19
DE102008012930B3 (de) 2009-06-04

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