DE102005051709A1 - Exhaust gas cooler for motor vehicle, has extruded aluminum sheath combining media guide of hot medium in channel and cooling medium in other channel in sheath, where channel size is provided for cooling medium between outer and inner walls - Google Patents
Exhaust gas cooler for motor vehicle, has extruded aluminum sheath combining media guide of hot medium in channel and cooling medium in other channel in sheath, where channel size is provided for cooling medium between outer and inner walls Download PDFInfo
- Publication number
- DE102005051709A1 DE102005051709A1 DE200510051709 DE102005051709A DE102005051709A1 DE 102005051709 A1 DE102005051709 A1 DE 102005051709A1 DE 200510051709 DE200510051709 DE 200510051709 DE 102005051709 A DE102005051709 A DE 102005051709A DE 102005051709 A1 DE102005051709 A1 DE 102005051709A1
- Authority
- DE
- Germany
- Prior art keywords
- channel
- exhaust gas
- gas cooler
- cooling medium
- hot
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
- F28F7/02—Blocks traversed by passages for heat-exchange media
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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
- 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
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
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- 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
Abstract
Description
Die Erfindung betrifft einen Abgaskühler, bestehend aus nur wenigen Einzelteilen, insbesondere für den Betrieb mit einem Kfz-Verbrennungsmotor.The Invention relates to an exhaust gas cooler, consisting of only a few parts, especially for the operation with a car internal combustion engine.
Nach
dem Stand der Technik sind Abgaskühler für Kraftfahrzeuge, die mit Motorkühlwasser
heißes
Motorabgas kühlen
in vielfachen Ausführungsformen
bekannt. In
In
In
Dieser bekannte Stand der Technik nutzt nicht die erfindungsgemäßen Vorteile, die sich aus einer Zusammenfassung der bekannten Techniken ergeben können.This known prior art does not use the advantages according to the invention, which result from a summary of the known techniques can.
Der Erfindung liegt die Aufgabe zugrunde bekannte Vorteile von Wärmetauschern zu bündeln und die Herstellung zu vereinfachen und kostengünstig zu gestalten Der erfindungsgemäße Abgaskühler vereinigt die Medienführungen von kühlendem und heißem, abzukühlendem Medium, also zum Beispiel von Kühlwasser und von Abgas eines Kfz-Verbrennungsmotors innerhalb eines einzigen Metallprofiles, welches mit dem Strangpressverfahren aus Aluminium in einem Stück zusammenhängend und in beliebigen Längen bis zu mehreren Metern hergestellt wird. Die benötigte Länge des Metallprofiles für einen einzelnen Abgaskühler kann dann je nach erforderlicher Wärmetauscherfläche als Leistungsmerkmal entsprechend abgeschnitten werden.Of the The invention is based on the object known advantages of heat exchangers to bundle and to simplify the production and to make it cost-effective The exhaust gas cooler according to the invention combines the media guides of cooling and hot, abzukühlendem Medium, for example of cooling water and exhaust of a vehicle internal combustion engine within a single Metal profiles, which with the extrusion of aluminum in one piece coherently and in any lengths produced up to several meters. The required length of the metal profile for a single exhaust gas cooler can then depending on the required heat exchanger surface as Feature be cut off accordingly.
In einer dargestellten Ausführung des Metallprofiles ist dieses rechteckig, es sind jedoch alle Querschnitte von rund, vieleckig, achteckig, sechseckig, quadratisch möglich. In der dargestellten Ausführung ist die Abgasführung in mindestens zwei parallel verlaufende, übereinander, nebeneinander oder kombiniert liegende getrennte Kanäle für kühlendes Medium (Kühlwasser) und heißes Medium (Abgas) aufgeteilt. Diese mindestens zwei Kanäle können durch von den Kanalwandungen nach innen in den Kanalraum hinein ragende Rippenstränge ausgefüllt sein, je nach den Erfordernissen der Wärmeleitung. Diese Rippenstränge dienen der Wärmeaufnahme aus dem Abgas und zur Weiterleitung der Wärme über die Kanalwände an das Kühlwasser.In an illustrated embodiment of the metal profile, this is rectangular, but they are all cross sections from round, polygonal, octagonal, hexagonal, square possible. In the illustrated embodiment is the exhaust system in at least two parallel, one above the other, side by side or combined separate channels for cooling medium (cooling water) and hot Split medium (exhaust). These at least two channels can go through projecting from the channel walls inwards into the channel space rip cords be filled in, depending on the requirements of heat conduction. These rip cords serve the heat absorption the exhaust gas and to forward the heat through the channel walls to the Cooling water.
Die Außenwadung des abgasführenden Kanals wird in einer Ausführungform vollständig umhüllt durch eine weitere Wandung und durch den Abstand beider Wandungen bildet sich die Kanalführung des Kühlmediums hier z.B. dem Kühlwasser des Verbrennungsmotors. Der innere, abgasführende Kanal ist aus Gründen der mechanischen Festigkeit und Halterung durch mindestens einen entsprechend angeordneten, durchgehenden Steg gehalten und seine Position innerhalb der Kanalführung für das Kühlwasser wird damit festgelegt. Durch die Anordnung mehrerer durchgehenden Stege können dadurch für das Kühlmedium mehrfach längsgeteilte Kanalstränge entstehen.The Außenwadung the exhaust gas leading Channels will be in an execution form Completely enveloped by another wall and formed by the distance between the two walls the canal management of the cooling medium here e.g. the cooling water of the internal combustion engine. The inner, exhaust gas channel is for reasons of mechanical strength and support by at least one accordingly arranged, continuous web held and its position within the canal guidance for the cooling water is set with it. Due to the arrangement of several continuous Stages can thereby for that cooling medium split longitudinally channel strands arise.
Je nach benötigter Wärmetauscherfläche kann beim Design des Metallprofiles die Anzahl, Abstand, Materialdicke, Höhe der Rippen und der damit verfügbare Freiraum/Druckverlust der Abgasführung oder der Kühlwasserführung verschieden gestaltet werden.ever according to required Heat exchanger surface can in the design of the metal profile the number, distance, material thickness, height of Ribs and the available Free space / pressure loss of the exhaust system or the cooling water supply different be designed.
In einer weiteren Ausführung eines ersten Metallprofiles wird dessen Kanalinnenraum für das heiße Medium (Abgas) zur Leistungssteigerung mit einem weiteren, zweiten Metallprofil ausgefüllt, welches ebenfalls im Strangpressverfahren hergestellt wird. Dieses zweite Metallprofil wird mit seiner Mittelwand in entsprechend vorgesehene Nuten im ersten Metallprofil eingeschoben. Das zweite Metallprofil hat eine zweifache Aufgabe. Mit seiner Mittelwand trennt es den vorhandenen Abgaskanal des ersten Metallprofiles in zwei getrennte Kanäle für das heiße Medium. Dadurch wird eine Betriebsweise als sogenannter U-Wärmetauscher ermöglicht. Hierbei wird durch eine doppelbödige Ausgestaltung der Trennwand mit einem Hohlraum eine thermische Trennung der beiden Abgaskanäle erreicht, da das bereits abgekühlte Abgas am Abgasauslaß nicht durch den im U-Betrieb daneben befindlichen heißen Abgaseinlaß wieder aufgeheizt werden soll. Vorteilhafterweise werden bei der U-Betriebsweise auch die das Kühlmedium führenden Kanäle durch Stege entsprechend geteilt.In a further embodiment of a first metal profile whose channel interior for the hot medium (exhaust gas) is filled to increase performance with another, second metal profile, which is also produced by the extrusion process. This second metal profile is provided with its center wall in correspondingly provided grooves in the first Metal profile inserted. The second metal profile has a double task. With its middle wall it separates the existing exhaust duct of the first metal profile into two separate channels for the hot medium. This allows operation as a so-called U-type heat exchanger. Here, a doppelbödige embodiment of the partition with a cavity, a thermal separation of the two exhaust ducts is achieved because the already cooled exhaust gas at the exhaust outlet is not to be reheated by the next in the U-mode hot exhaust inlet. Advantageously, in the U-mode, the channels carrying the cooling medium are likewise divided by webs.
Die andere Aufgabe des zweiten Metallprofils ist es, durch senkrecht zu seiner Mittelwand angeordnete weitere Kühlmedienkanäle mit gerippter Oberfläche zur heißen Mediumsseite hin, für eine erhöhte Tauscherfläche und Tauscherleistung zu sorgen.The Another task of the second metal profile is by vertical to its middle wall arranged further cooling medium channels with ribbed surface for be called Medium side, for an increased exchanger surface and to ensure exchanger performance.
Dieses erste und zweite Metallprofil könnte theoretisch zu einem einzigen Metallprofil vereinigt werden, hier bestehen zur Zeit jedoch noch fertigungstechnische Grenzen bei der Profilherstellung im Strangpressverfahren hinsichtlich der filigranen Ausgestaltung der Innenkonturen.This first and second metal profile could theoretically united to a single metal profile, here exist for However, there are still manufacturing limitations in profile production in the Extrusion process with regard to the filigree design of Inner contours.
Durch längs verlaufende Verstärkungswulste an der Außenwandung des Kanals für das Kühlmedium werden Schraubenbohrungen ermöglicht, die der Befestigung von Zuführungs-/Abführungs- und Umkehrelementen dienen.By longitudinally extending Reinforcing beads on the outer wall of the channel for the cooling medium are screw holes allowed the attachment of supply / discharge and reversing elements.
Diese Zuführungs-/Abführungselemente komplettieren den Abgaskühler zu einer funktionsfähigen Einheit, indem sie die Metallprofile verschließen, als Anschluß für die Zuleitung und Ableitungen des heißen Mediums und des Kühlmediums dienen und die Medienführung in den dafür vorgesehenen Kanälen der Metallprofile sicherstellen. Das Umkehrelement sorgt beim Abgaskühler mit Einschubelement für eine Umkehr der Medienströme um 180 Grad zum U-Abgaskühlerbetrieb. Je nach weiteren Ausgestaltungen dieser Elemente lässt sich auch ein Gegenstrombetrieb des Abgaskühlers einrichten.These Complete supply / discharge elements the exhaust gas cooler to a functional Unit, by closing the metal profiles, as a connection for the supply line and derivatives of the hot Medium and the cooling medium serve and the media leadership in the for provided channels ensure the metal profiles. The reversing element helps with the exhaust gas cooler Insertion element for a reversal of the media streams 180 degrees to the U exhaust cooler operation. Depending on further embodiments of these elements can be also set up a countercurrent operation of the exhaust gas cooler.
Durch eine entsprechende Anordnung von Dichtungen in oder auf den Zuführungs-, Abführungs- und Umkehrelementen und zueinander passenden Dichtflächen auf dem Metallprofil wird die Trennung der Medienströme Abgas und Kühlwasser gesichert. Das Material. der Zu-, Ab- und Umkehrelemente kann dabei je nach thermischen Anforderungen aus Aluminiumguß aller Gussherstellungsverfahren oder im Umformverfahren bestehen oder aus Kunststoff.By a corresponding arrangement of seals in or on the feeder, loss transfer and reversing elements and mating sealing surfaces the metal profile is the separation of the media flows exhaust and cooling water secured. The material. The input, output and reversing elements can vary depending on Thermal requirements of aluminum casting of all casting manufacturing processes or in the forming process or of plastic.
Die
Zeichnung
Die
Zeichnung
In
In
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510051709 DE102005051709A1 (en) | 2005-10-28 | 2005-10-28 | Exhaust gas cooler for motor vehicle, has extruded aluminum sheath combining media guide of hot medium in channel and cooling medium in other channel in sheath, where channel size is provided for cooling medium between outer and inner walls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510051709 DE102005051709A1 (en) | 2005-10-28 | 2005-10-28 | Exhaust gas cooler for motor vehicle, has extruded aluminum sheath combining media guide of hot medium in channel and cooling medium in other channel in sheath, where channel size is provided for cooling medium between outer and inner walls |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005051709A1 true DE102005051709A1 (en) | 2007-05-03 |
Family
ID=37912725
Family Applications (1)
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DE200510051709 Ceased DE102005051709A1 (en) | 2005-10-28 | 2005-10-28 | Exhaust gas cooler for motor vehicle, has extruded aluminum sheath combining media guide of hot medium in channel and cooling medium in other channel in sheath, where channel size is provided for cooling medium between outer and inner walls |
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DE (1) | DE102005051709A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009021826A1 (en) * | 2007-08-13 | 2009-02-19 | Valeo Termico S.A. | Heat exchanger for gas and corresponding method of manufacture |
WO2009118233A1 (en) * | 2008-03-22 | 2009-10-01 | Mahle International Gmbh | Component for conducting exhaust gas |
WO2012136765A1 (en) | 2011-04-05 | 2012-10-11 | Mahle International Gmbh | Exhaust gas cooler |
DE102013109156A1 (en) * | 2013-08-23 | 2015-02-26 | Benteler Automobiltechnik Gmbh | Extruded automotive heat exchanger |
DE102013109153A1 (en) * | 2013-08-23 | 2015-02-26 | Benteler Automobiltechnik Gmbh | Extruded automotive heat exchanger |
DE102013020469A1 (en) * | 2013-12-06 | 2015-06-11 | Webasto SE | Heat exchanger and method for producing a heat exchanger |
US20160368174A1 (en) * | 2015-06-22 | 2016-12-22 | The Boeing Company | Method and apparatus for reducing post-cure extraction force of a tooling mandrel |
US20170356692A1 (en) * | 2016-06-08 | 2017-12-14 | Savannah River Nuclear Solutions, Llc | Finned Heat Exchanger |
-
2005
- 2005-10-28 DE DE200510051709 patent/DE102005051709A1/en not_active Ceased
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009021826A1 (en) * | 2007-08-13 | 2009-02-19 | Valeo Termico S.A. | Heat exchanger for gas and corresponding method of manufacture |
ES2335953A1 (en) * | 2007-08-13 | 2010-04-06 | Valeo Termico, S.A. | Heat exchanger for gas and corresponding method of manufacture |
WO2009118233A1 (en) * | 2008-03-22 | 2009-10-01 | Mahle International Gmbh | Component for conducting exhaust gas |
WO2012136765A1 (en) | 2011-04-05 | 2012-10-11 | Mahle International Gmbh | Exhaust gas cooler |
DE102011006793A1 (en) | 2011-04-05 | 2012-10-11 | Behr Gmbh & Co. Kg | exhaust gas cooler |
DE102013109156A1 (en) * | 2013-08-23 | 2015-02-26 | Benteler Automobiltechnik Gmbh | Extruded automotive heat exchanger |
DE102013109153A1 (en) * | 2013-08-23 | 2015-02-26 | Benteler Automobiltechnik Gmbh | Extruded automotive heat exchanger |
DE102013020469A1 (en) * | 2013-12-06 | 2015-06-11 | Webasto SE | Heat exchanger and method for producing a heat exchanger |
US10551087B2 (en) | 2013-12-06 | 2020-02-04 | Webasto SE | Heat exchanger with an internal conduit for conducting a fluid |
US20160368174A1 (en) * | 2015-06-22 | 2016-12-22 | The Boeing Company | Method and apparatus for reducing post-cure extraction force of a tooling mandrel |
US10807280B2 (en) * | 2015-06-22 | 2020-10-20 | The Boeing Company | Method of extracting a tooling mandrel from a composite laminate cavity |
US20170356692A1 (en) * | 2016-06-08 | 2017-12-14 | Savannah River Nuclear Solutions, Llc | Finned Heat Exchanger |
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Legal Events
Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |