EP2929272A1 - Échangeur de chaleur pour machine à combustion interne - Google Patents

Échangeur de chaleur pour machine à combustion interne

Info

Publication number
EP2929272A1
EP2929272A1 EP13792638.2A EP13792638A EP2929272A1 EP 2929272 A1 EP2929272 A1 EP 2929272A1 EP 13792638 A EP13792638 A EP 13792638A EP 2929272 A1 EP2929272 A1 EP 2929272A1
Authority
EP
European Patent Office
Prior art keywords
zones
coolant
flow
heat exchanger
channel
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Withdrawn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
EP13792638.2A
Other languages
German (de)
English (en)
Inventor
Hans-Jürgen Hüsges
Hans-Ulrich Kühnel
Peter Corbach
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 EP2929272A1 publication Critical patent/EP2929272A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • 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
    • F28D7/16—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 in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0462—Liquid cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • 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
    • 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
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded

Definitions

  • ribs to increase the heat exchange surface.
  • the ribs corresponding to the ribs extending indentations are formed on the partition wall between the Gaskanai and the coolant channel, by means of which the coolant flow is to be brought closer to the gas flow in order to achieve a better efficiency.
  • EP 0 815 971 A1 discloses a plate heat exchanger whose plate surfaces have nubs and partitions projecting into the coolant channels.
  • the nubs are intended to increase the heat exchange surface, while the partitions ensure an exact line of the coolant.
  • the zones where nubs are formed are larger than the smooth-surfaced zones. Since only a flow distribution takes place through the zones with a smooth surface, for which purpose small cross-sections are sufficient, while the increase in efficiency is achieved by the zones with nubs, particularly good results are achieved with such an embodiment.
  • the nubs protrude until immediately before a housing wall bounding the coolant channel on the opposite side of the partition wall. This means that the nubs end at a small distance from the opposite wall, so that a complete flow around the nubs is still achieved.
  • the entire surface is available for heat exchange and a particularly large proportion of the coolant flow actually comes into contact with the surface in these zones.
  • Particularly large surfaces with simultaneously low flow resistance are achieved when the knobs are formed in a spherical-sectional or pyramidal shape.
  • these structures are easy to fabricate and allow up to 45% increase in the available heat exchange area.
  • the heat exchanger has an inner housing in which the liquid to be cooled by the bare channel is arranged and an outer housing, which surrounds the coolant channel, wherein the rare walls of the inner housing serve as a partition.
  • a heat exchanger can be produced inexpensively, for example, in the die-casting method, in which the nub structures can be easily integrated into the molds. Furthermore, the assembly is particularly simple, thereby reducing assembly costs.
  • a coolant inlet and a coolant outlet are formed on the outer housing. Further assembly steps are omitted.
  • the zones with a smooth surface and the zones which have nubs are arranged relative to one another such that a uniform distribution of the coolant stream takes place on the dividing wall.
  • This can be determined, for example, by flow simulations for the special design of the heat exchanger.
  • zones with knobs form With uniform flow distribution particularly high cooling performance can be achieved.
  • a smooth surface zone which extends over the length of the dividing wall, which in the direction of the width follows a first zone of nubs extending along the length of the dividing wall. The coolant flow is distributed relatively evenly in the knob-free zone before the overflowing of the pinch zone, in which the flow resistance is greater, and flows from here in the direction of the coolant outlet.
  • the first zone with nubs is followed by a section which extends over the further width of the dividing wall and, in the longitudinal direction, larger zones in which the nubs are formed and narrow zones with a smooth surface alternate.
  • Figure 1 shows a view of a heat transfer device according to the invention obliquely from above in dreimdimensiona! He representation.
  • Figure 2 shows a top view of the heat transfer device according to the invention according to Figure 1 in a sectional view.
  • FIG. 3 shows a detail of a surface of a partition wall of a heat exchanger according to the invention in a three-dimensional representation.
  • Figure 4 shows a plan view of a partition wall of a heat exchanger according to the invention in a schematic representation.
  • the heat exchanger shown in the figures consists of an outer housing 2, in which a two-part inner housing 4 with an upper shell 6 and a lower shell 8, which are interconnected by friction stir welding, is arranged.
  • Both the upper shell 6 and the lower shell 8 of the inner housing 4 which are each made by die casting, for example, each have a partition 10 from which ribs 12 in cross section alternately from the upper shell 6 and the lower shell 8 in one of Cooling fluid flow channel 14 extend inside the inner housing 4.
  • This fluid may be the exhaust gas of an internal combustion engine.
  • the inner housing 4 is pushed into the outer housing 2 such that a coolant channel 16 through which a coolant can flow is formed between the inner housing 4 and the outer housing 2, which is separated by the partition wall 10 from the channel 14 through which the fluid to be cooled flows.
  • a coolant channel 16 through which a coolant can flow is formed between the inner housing 4 and the outer housing 2, which is separated by the partition wall 10 from the channel 14 through which the fluid to be cooled flows.
  • the inner housing 4 is tightly connected to the outer housing 2, so that the coolant channel 16 is formed as a closed coolant jacket.
  • the passage 14 through which the fluid to be cooled extends from an inlet 20 on the head side of the heat exchanger to an outlet 22 on the opposite side of the heat exchanger.
  • the channel 14 is divided by a middle wall 24 into two sub-channels 26, 28, wherein the first sub-channel 26 is connected to an exhaust manifold of a first cylinder group and the second Teiikanal 28 is connected to an exhaust manifold of a second cylinder group of the internal combustion engine. This separation prevents interference between the individual ejected exhaust pulses, which can increase the overall mass flow when using downstream check valves.
  • the middle wall 24 extends from the partition wall 10 of the lower shell 8 continuously into an opposite groove 30 which is formed in the partition wall 10 of the upper shell 6.
  • the ittel wall 24 is fixed by the partition wall 10 in the groove 30 by means of friction stir welding, so that an overflow of the central wall 24 is prevented and at the same time the stability of the inner housing 4 is significantly increased by halving the existing explosive surfaces.
  • the partition wall 10 of both the lower shell 8 and the upper shell 6 of the inner housing 4 has an outer wave-shaped surface 32.
  • the wave-shaped surface 32 is achieved by recesses 34 between ribbed feet 36 of the successive rows of ribs.
  • the recesses 34 only have an offset extending over this area, so that with the beginning of the following series of ribs, which is arranged in the same manner to the previous, the recesses 34 is again arranged in the spaces between the rib feet 36.
  • the outer housing 2 produced, for example, in the sand casting method has an inner wall 38, which is configured corresponding to the recesses 34 of the inner housing 4. This means, in that a projection 40 projects into each recess 34 between the rib feet 36, so that the distance of the surface 32 of the inner housing 4 from the inner wall 38 of the outer housing 2 is substantially the same everywhere. It follows that the flow cross-section is substantially the same everywhere, both in the flow direction and perpendicular to the flow direction.
  • the projections 40 are formed by groove-shaped depressions 42 on an outer wall 44 of the outer housing 2 for increasing the rigidity.
  • Each opposite, ie on the inner wall 38, is formed in a subsequent formation of such a recess 42 of the projection 40 by displacement of the material.
  • this form can also be imaged directly in the casting process, which also an increase in rigidity without increasing the material requirements is achieved.
  • adeffeneiniass 46 and a flange-shapeddemittefauslass 48 is additionally formed, as shown in Figure 1 can be seen.
  • protruding nubs 50 are formed on the surface of the partition wall 10 of the inner housing 4 in the coolant channel 16, as can be seen in Figure 2 hinted and shown in Figure 3 fragmentary.
  • the nubs 50 to be recognized in FIG. 3 have a part-spherical structure which is easy to produce by die-casting and increases the surface area available for heat exchange by about 45%.
  • the nubs 50 protrude until just before an opposite inner housing wall 52 of the outer housing. 2
  • FIG. 4 It can be seen in FIG. 4 how, as a result of the arrangement of the dimples 50, which are of pyramidal design here, a guidance of the coolant on the dividing wall 10 can be achieved without using additional webs.
  • a zone 54 with a smooth surface is first formed downstream of the coolant inlet 46. This extends over the entire length of the partition 10 and the inner housing 4. This is followed in the direction of the width of the partition 10 considered a zone 56, which is viewed over the entire length equipped with nubs 50. This means that this area offers a higher flow resistance and, correspondingly, due to the lower flow resistance, the coolant initially distributes over the length of the partition wall 10 in the zone 54 with a smooth surface.
  • a portion 58 joins in which longitudinally zones 56 alternate with dimples 50 and smooth surface zones 54, but the width of the zones 54 correspond to only about one fourth of the zones 56 with dimples 50 ,
  • This structure extends straight along the remaining width of the partition wall 10.
  • a current thread is formed, which generates a main flow direction along the width of the partition 10 due to the lower flow resistance.
  • These flow filaments in which there is a higher flow velocity than in the zones 56 with nubs 50, create a pressure gradient in the zones 56, which leads to a main flow i being generated in the direction of the width also in these regions.

Landscapes

  • 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)

Abstract

L'invention concerne un échangeur de chaleur destiné à des machines à combustion interne, comprenant un conduit (14) dans lequel peut circuler un fluide à refroidir, un conduit de réfrigérant (16), une paroi de séparation (10) qui sépare le conduit de réfrigérant (16) du conduit (14) dans lequel peut circuler un fluide à refroidir, des bossages (50) étant formées sur une surface de la paroi de séparation (10) dirigée vers le conduit à réfrigérant (16). Conformément à l'invention, pour accroître la puissance de refroidissement d'un tel échangeur de chaleur, des zones (56) qui présentent des bossages (50) ainsi que des zones (54) qui présentent une surface lisse sont formées dans le conduit de réfrigérant (16) sur la paroi de séparation (10). Les deux zones (54, 56) sont disposées l'une par rapport à l'autre de façon à créer des zones (54, 56) ayant des résistances à l'écoulement différentes. Cela permet de réaliser une division et un guidage du réfrigérant avec une surface d'échange de chaleur agrandie, ce qui entraîne une augmentation du rendement du radiateur.
EP13792638.2A 2012-12-07 2013-11-12 Échangeur de chaleur pour machine à combustion interne Withdrawn EP2929272A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111928.7A DE102012111928A1 (de) 2012-12-07 2012-12-07 Wärmetauscher für eine Verbrennungskraftmaschine
PCT/EP2013/073623 WO2014086558A1 (fr) 2012-12-07 2013-11-12 Échangeur de chaleur pour machine à combustion interne

Publications (1)

Publication Number Publication Date
EP2929272A1 true EP2929272A1 (fr) 2015-10-14

Family

ID=49619898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13792638.2A Withdrawn EP2929272A1 (fr) 2012-12-07 2013-11-12 Échangeur de chaleur pour machine à combustion interne

Country Status (4)

Country Link
US (1) US20150314667A1 (fr)
EP (1) EP2929272A1 (fr)
DE (1) DE102012111928A1 (fr)
WO (1) WO2014086558A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160195342A1 (en) * 2015-01-07 2016-07-07 Hamilton Sundstrand Corporation Heat exchanger with fin wave control
CN112682500B (zh) * 2020-12-31 2023-05-26 南宁市安和机械设备有限公司 一种采用错位打点油冷器管制成的油冷器

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111878A (en) * 1991-07-01 1992-05-12 General Motors Corporation U-flow heat exchanger tubing with improved fluid flow distribution
US5409056A (en) * 1992-05-11 1995-04-25 General Motors Corporation U-flow tubing for evaporators with bump arrangement for optimized forced convection heat exchange
JP3146442B2 (ja) * 1992-11-27 2001-03-19 株式会社ゼクセルヴァレオクライメートコントロール 熱交換器用チューブおよびその製造方法
US5632331A (en) * 1993-09-30 1997-05-27 Sanden Corporation Heat exchanger
DE69508320T2 (de) * 1994-07-25 1999-09-09 Sanden Corp Wärmetauscher
DE69715107T2 (de) 1996-06-26 2003-05-08 Showa Denko Kk Verfahren zur Herstellung von Flachröhren für Wärmetauscher
EP0982096B1 (fr) * 1998-08-25 2004-01-28 Calsonic Kansei Corporation Méthode et appareil pour la fabrication d'un corps échangeur de chaleur
US6318455B1 (en) * 1999-07-14 2001-11-20 Mitsubishi Heavy Industries, Ltd. Heat exchanger
SE524938C2 (sv) * 2003-02-03 2004-10-26 Ep Technology Ab Värmeväxlare och metod för att torka ett fuktigt medium
DE10359806A1 (de) * 2003-12-19 2005-07-14 Modine Manufacturing Co., Racine Wärmeübertrager mit flachen Rohren und flaches Wärmeübertragerrohr
US20060144051A1 (en) * 2005-01-06 2006-07-06 Mehendale Sunil S Evaporator designs for achieving high cooling performance at high superheats
DE102005010493A1 (de) * 2005-03-08 2006-09-14 Modine Manufacturing Co., Racine Wärmeübertrager mit flachen Rohren und flaches Wärmeübertragerrohr
DE102005045103B3 (de) * 2005-09-21 2006-12-28 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine
DE102005058204B4 (de) 2005-12-02 2008-07-24 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine
FR2900067B1 (fr) * 2006-04-20 2008-07-18 Commissariat Energie Atomique Systeme d'echangeur de chaleur comportant des zones de circulation fluidique revetues de facon selective par un catalyseur de reaction chimique
DE102007022517B4 (de) * 2007-05-14 2010-06-02 Continental Automotive Gmbh Wärmetauscher zur Kühlung einer elektronischen Baugruppe
JP2010048536A (ja) * 2008-08-25 2010-03-04 Denso Corp 熱交換器
AT508058B1 (de) * 2009-03-05 2011-01-15 Mahle Int Gmbh Plattenwärmetauscher
DE102009035723B3 (de) 2009-07-31 2011-02-03 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine
DE102009055931A1 (de) 2009-11-27 2011-06-01 Pierburg Gmbh Wärmeübertragungsvorrichtung sowie Wärmeübertragungsvorproduktanordnung und Verfahren zur Herstellung einer derartigen Wärmeübertragungsvorrichtung
DE102010048793B3 (de) * 2010-10-20 2011-11-17 Pierburg Gmbh Abgasführungsvorrichtung für eine Verbrennungskraftmaschine
DE102011050596B4 (de) * 2011-05-24 2013-06-06 Pierburg Gmbh Wärmeübertragungsvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014086558A1 *

Also Published As

Publication number Publication date
WO2014086558A1 (fr) 2014-06-12
DE102012111928A1 (de) 2014-06-12
US20150314667A1 (en) 2015-11-05

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