EP2531798A2 - Dispositif de transfert thermique et agencement de recyclage des gaz d'échappement comprenant un tel dispositif de transfert thermique - Google Patents

Dispositif de transfert thermique et agencement de recyclage des gaz d'échappement comprenant un tel dispositif de transfert thermique

Info

Publication number
EP2531798A2
EP2531798A2 EP11700650A EP11700650A EP2531798A2 EP 2531798 A2 EP2531798 A2 EP 2531798A2 EP 11700650 A EP11700650 A EP 11700650A EP 11700650 A EP11700650 A EP 11700650A EP 2531798 A2 EP2531798 A2 EP 2531798A2
Authority
EP
European Patent Office
Prior art keywords
heat transfer
transfer device
channel
ribs
fluid
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Withdrawn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
EP11700650A
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 EP2531798A2 publication Critical patent/EP2531798A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • F02M26/40—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with timing means in the recirculation passage, e.g. cyclically operating valves or regenerators; with arrangements involving pressure pulsations
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • 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
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • 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
    • F02M26/42—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
    • 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
    • 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

Definitions

  • the present invention relates to a heat transfer device, which consists of at least two housing parts, wherein the housing parts are interconnected such that at least one of a fluid to be cooled flowed through channel and at least one of a kuhifiuid channel in heat exchanging contact with each other are arranged extend from at least one of the housing parts ribs in the channel to be cooled by the fluid to be cooled, and wherein the ribs are interrupted in the main flow direction of the fluid to be cooled. Furthermore, the present invention relates to an arrangement for exhaust gas recirculation with such a heat transfer device,
  • Heat transfer devices are used, for example, as coolers for cooling exhaust gases to be recirculated in the inlet of the internal combustion engine in order to ensure an improvement of the combustion process. It is known to produce heat transfer devices from a plurality of die cast chases, wherein ribs extend from the inner die cast shells into the channel through which the fluid to be cooled flows. With coolant flowing around heat transfer devices is always the shell, from which the ribs extend into the channel to be cooled by the fluid to be cooled, at the same time as a partition wall between the kuhifiuid channel and the flowed through by the fluid to be cooled channel. Such a heat transfer device is disclosed for example in DE 10 2007 019 206 B4.
  • the device disclosed herein has an inner shell from which ribs extend into a channel through which exhaust gas flows, for example.
  • the ribs have an elongated shape in the main flow direction of the exhaust gas, are offset in the flow direction to each other and formed interrupted.
  • an exchange of the fluid to be cooled transversely to the main flow direction can take place in the regions not equipped with ribs in the main flow direction.
  • exhaust pulsations are significantly attenuated.
  • a known from DE 197 36 500 A1 device allows parallel cooling of the respective Fiuidströme, which are returned by two separate rows of cylinders to the suction pipe.
  • the disclosed heat transfer device has a fluid line transverse to the cooling channels, with a first end of the fluid line connected to a first row of cylinders and a second end of the fluid line connected to a second row of cylinders.
  • the exhaust pipe has a partition wall which directs the fluid to be returned of the respective Zyiinder myselfn to the associated cooling channels.
  • the respective Fiuidströme be reunited after cooling, so that the Pu! Tions of the individual cylinder rows generated by the engine in the fluid flow are not maintained.
  • the object of the invention in contrast, is to provide a heat transfer device and an arrangement for exhaust gas recirculation with such a heat transfer device create, in a simple manner, the Incationen a fluid flow of different cylinder rows possible until the subsequent intake stroke, in which optionally a turbocharger is arranged, so that it is possible to return a larger amount of exhaust gas.
  • the flow-through of the fluid to be cooled channel of the heat transfer device according to the invention is divided perpendicular to the direction of extension of the ribs in a first channel and a second channel. Separation of the one channel into two channels will cause the purges in the fluid flow generated in the respective cylinder banks and at different times by the engine to be maintained, as due to the separate guidance the distance between the waves occurring in one channel increases which reduces the interference of two consecutive times, so that the amplitudes of the individual parts are preserved. Thus, the periods of increased pressure in the Abgas Wegmannrieitung lengthen.
  • a check valve is arranged in the arrangement for exhaust gas recirculation downstream of the first and the second channel.
  • the channel of the heat transfer device according to the invention is divided by means of a plate with passage openings corresponding to the ribs.
  • a cost effective solution of a heat transfer device having at least two separate channels, which maintains the fluid flow puddles, is provided.
  • the ribs formed by Gescouseteii in the direction of extension at its end facing away from GeHouseteii a cross-sectional area which is smaller than the housing part facing cross-sectional area.
  • the plate can be clamped in a simple manner by the conical shape of the ribs between the two housing parts.
  • the cross-sectional area of the ribs in the direction of extent changes continuously.
  • the cross-sectional area of the ribs in the direction of extent may also change abruptly.
  • the plate having the through holes corresponding to the ribs can be effectively and inexpensively fixed, thereby forming a heat transfer device having at least two passage channels.
  • the first channel of the heat transfer device to a first row of cylinders and the second channel of the heat transfer device to a second row of cylinders are connected. Downstream of
  • Heat transfer device the check valves and optionally a compressor of a Turboiaders are arranged. With this arrangement, the pulsations sustained by the heat transfer device result in improved charging of the compressor of a turbocharger.
  • Figure 1 shows a front view of the heat transfer device according to the invention in a sectional view.
  • Figure 2 shows a plan view of the heat transfer device according to the invention in a sectional view.
  • the heat transfer device 10 consists of a substantially cup-shaped integrally formed housing bottom part 11 and a matching Genzousedeckelteii 15. Both housing parts 11, 15 are connected to each other, for example by friction stir welding, that in its interior a through-flow of a fluid to be cooled main channel 16 is formed.
  • the main channel 16 has an inlet region 32 at a first end and an outlet region 34 at the second end, wherein the cross-sectional area of the inlet region 32 is slightly larger than the cross-sectional area of the outlet region 34.
  • the device may be U-shaped, so that the Inlet area 32 and the outlet 34 are arranged side by side.
  • Each of the housing parts 11, 15 has in the assembled state alternately from the housing bottom part 11 and from the housing cover part 15 into the interior of the main channel 16 extending ribs 20 which have a continuous change in the cross-sectional area in their extension direction.
  • the housing parts 11, 15 are surrounded by a jacket housing 36, so that between the housing parts 11, 15 and the manure housing 36 is formed by a cooling fluid can flow through a cooling channel 18 extending over the entire length of the device 10, ie from the inlet region 32 to Outlet area 34 of the device 10, extends.
  • Both channels 16, 18 are heat exchanging contact arranged to each other, wherein the heat exchanging contact via the ribs 20 and the partition walls 38, 39 of the two housing parts 11, 15 takes place.
  • the main channel 16, through which the fluid to be cooled flows, is divided by a plate 26 into a first channel 22 and a second channel 24 arranged parallel thereto, the plate 26 serving as a partition between the two channels 22, 24.
  • the plate 26 has corresponding openings 20 to the ribs 20, so that the plate 26 can be clamped in a simple manner by the conical shape of the ribs 20. The clamping is achieved in that the circumference of the through holes 28 equal to the circumference of the ribs 20.
  • the plate 26 is inserted over the ribs 20 of the housing part 11. As soon as the circumference of the passage openings 28 corresponds to the circumference of the ribs 20, the plate 26 rests on the ribs 20 in a defined position.
  • the housing part 11 with the plate 26 is then plugged together with the second housing part 15.
  • the cross section of the through holes 28 should correspond exactly to the position of the cross section of the ribs 20 of the housing part 15, in which the housing parts 11, 15 are in the position in which they can be welded together.
  • movement of the plate 26 along the ribs 20 in one direction is prevented by the ribs 20 of the housing bottom part 11 and in the opposite direction by the ribs 20 of the housing cover part.
  • the ribs 20 of the housing parts 11, 15 may alternatively also have a stepped change in the cross-sectional area in their direction of extent, so that the plate 26 is placed on the shoulders of the ribs 20 of both housing parts 11, 15 during assembly and thus fixed when the plate 26th between the two housing parts 11, 15 is arranged.
  • Other methods known to those skilled in the art for fixing the plate 26, such as a fixation by welding, are also conceivable.
  • the device 10 is a part of an arrangement of an exhaust gas recirculation system. The fuel to be cooled produced by the internal combustion engine is guided from the different cylinder rows through the inlet region 32 into the respective channel 22, 24 and cooled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente invention concerne un dispositif de transfert de chaleur (10) qui se compose d'au moins deux parties de boîtier (11, 15). Selon l'invention : les parties de boîtier (11, 15) sont reliées entre elles de sorte qu'au moins un canal (16) pouvant parcouru par du fluide à refroidir, et au moins un canal (18) pouvant être parcouru par un fluide de refroidissement, sont en contact de façon à permettre les échanges thermiques; des nervures (20) s'étendent à partir d'au moins l'une des parties de boîtier (11, 15) dans le canal (16) pouvant être parcouru par un fluide à refroidir, et les nervures (20) sont interrompues dans la direction d'écoulement principale du fluide à refroidir. Le canal (16) du dispositif de transfert de chaleur (10), pouvant être parcouru par le fluide à refroidir, est subdivisé en un premier canal (22) et un second canal (24) perpendiculairement à la direction d'extension des nervures (20). L'invention concerne également un agencement de recyclage des gaz d'échappement comprenant un tel dispositif de transfert de chaleur (10), une soupape de retenue se trouvant respectivement en aval - dans le sens d'écoulement - du premier et du second canal (22, 24).
EP11700650A 2010-02-05 2011-01-14 Dispositif de transfert thermique et agencement de recyclage des gaz d'échappement comprenant un tel dispositif de transfert thermique Withdrawn EP2531798A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010007124.2A DE102010007124B4 (de) 2010-02-05 2010-02-05 Wärmeübertragungsvorrichtung sowie Anordnung zur Abgasrückführung mit einer derartigen Wärmeübertragungsvorrichtung
PCT/EP2011/050457 WO2011095382A2 (fr) 2010-02-05 2011-01-14 Dispositif de transfert thermique et agencement de recyclage des gaz d'échappement comprenant un tel dispositif de transfert thermique

Publications (1)

Publication Number Publication Date
EP2531798A2 true EP2531798A2 (fr) 2012-12-12

Family

ID=44316519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11700650A Withdrawn EP2531798A2 (fr) 2010-02-05 2011-01-14 Dispositif de transfert thermique et agencement de recyclage des gaz d'échappement comprenant un tel dispositif de transfert thermique

Country Status (3)

Country Link
EP (1) EP2531798A2 (fr)
DE (1) DE102010007124B4 (fr)
WO (1) WO2011095382A2 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736500A1 (de) 1997-08-22 1998-12-24 Daimler Benz Ag Mehrzylindrige Brennkraftmaschine mit V-förmig angeordneten Zylinderreihen
DE10214467A1 (de) * 2002-03-30 2003-10-09 Modine Mfg Co Abgaswärmetauscher für Kraftfahrzeuge
DE10331187B4 (de) * 2003-07-10 2007-09-06 Man B & W Diesel A/S Hubkolbenbrennkraftmaschine
DE102004025185B4 (de) * 2004-05-21 2008-04-03 Pierburg Gmbh Luftansaugkanalsystem für Verbrennungskraftmaschinen
DE102005058204B4 (de) * 2005-12-02 2008-07-24 Pierburg Gmbh Kühlvorrichtung für eine Verbrennungskraftmaschine
FR2907886B1 (fr) * 2006-10-27 2015-03-13 Valeo Sys Controle Moteur Sas Echangeur thermique a canal central pour fluide caloporteur.
DE102007019206B4 (de) 2007-04-24 2009-11-26 Pierburg Gmbh Wärmeübertragungsvorrichtung
ES2335953B1 (es) * 2007-08-13 2010-10-25 Valeo Termico, S.A. Intercambiador de calor para gases, y su correspondiente procedimiento de fabricacion.
DE102008012930B3 (de) * 2008-03-06 2009-06-04 Pierburg Gmbh Verfahren zur Herstellung von Wärmeübertragungsvorrichtungen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011095382A2 *

Also Published As

Publication number Publication date
DE102010007124A1 (de) 2011-08-11
WO2011095382A2 (fr) 2011-08-11
WO2011095382A3 (fr) 2011-11-10
DE102010007124B4 (de) 2014-04-10

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