DE102009020873A1 - Cooling device for exhaust gas recirculation cooler of a truck, comprises cooling unit, through which cooling medium flows and which has guiding element, by which exhaust gas of combustion engine is coolable in housing - Google Patents
Cooling device for exhaust gas recirculation cooler of a truck, comprises cooling unit, through which cooling medium flows and which has guiding element, by which exhaust gas of combustion engine is coolable in housing Download PDFInfo
- Publication number
- DE102009020873A1 DE102009020873A1 DE102009020873A DE102009020873A DE102009020873A1 DE 102009020873 A1 DE102009020873 A1 DE 102009020873A1 DE 102009020873 A DE102009020873 A DE 102009020873A DE 102009020873 A DE102009020873 A DE 102009020873A DE 102009020873 A1 DE102009020873 A1 DE 102009020873A1
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- Germany
- Prior art keywords
- housing
- cooling device
- exhaust gas
- coating
- cooling
- 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- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 49
- 239000002826 coolant Substances 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 56
- 238000000576 coating method Methods 0.000 claims abstract description 56
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 4
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 11
- 238000007751 thermal spraying Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 13
- 238000005299 abrasion Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/131—Wire arc spraying
-
- 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
- F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
-
- 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
- F02M26/50—Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities
-
- 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
- F28F21/089—Coatings, claddings or bonding layers made from metals or metal alloys
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Kühlvorrichtung für ein Kraftfahrzeug, insbesondere für einen Abgasrückführungskühler eines Lastkraftwagens der im Oberbegriff des Patentanspruchs 1 angegebenen Art. Die Erfindung betrifft des Weiteren ein Verfahren zum Herstellen einer Kühlvorrichtung für ein Kraftfahrzeug, insbesondere für einen Rückführungskühler eines Lastkraftwagens, der im Oberbegriff des Patentanspruchs 6 angegebenen Art. Außerdem betrifft die Erfindung eine Anlage zum Beschichten wenigstens eines Bereichs einer Innenoberfläche eines Gehäuses einer Kühlvorrichtung für ein Kraftfahrzeug der im Oberbegriff des Patentanspruchs 12 angegebenen Art.The The invention relates to a cooling device for a Motor vehicle, in particular for an exhaust gas recirculation cooler of a Truck specified in the preamble of claim 1. Art. The invention further relates to a method for manufacturing a cooling device for a Motor vehicle, in particular for a recirculation cooler of a Truck, specified in the preamble of claim 6 Art. Besides The invention relates to a system for coating at least one Area of an interior surface a housing a cooling device for a Motor vehicle specified in the preamble of claim 12 Art.
Es ist grundsätzlich gewünscht, Teile wie etwa ein kühlmittelführendes Gehäuse aus einem Material auszubilden, das preiswert und leichtbauend ist. In diesem Zusammenhang ist es bekannt, Gehäuse von Abgaswärmetauschern beispielsweise aus einem Aluminiumguss mit Siliziumanteilen herzustellen. Zur Kühlung eines Gases werden in einem solchen Gehäuse häufig Rohre geführt, mittels welchen das zu kühlende Gas durch eine Kühlflüssigkeit leitbar ist. Ein Nachteil ist nun, dass solche Rohre durch beispielsweise während einer Fortbewegung des Kraftfahrzeugs auftretende Vibrationen an dem Gehäuse durchscheuern können, wodurch im extremen Fall kleine Löcher entstehen. Durch solche Löcher kann dann Kühlflüssigkeit in die Abgasführung eintreten, so dass der Motor geschädigt wird. Außerdem führt der Abrieb von Gehäusematerial zum Aufbrauchen von Korrosionsinhibitoren, welche üblicherweise dem Kühlmittel zugesetzt sind.It is basically desired Parts such as a coolant casing Made of a material that is inexpensive and lightweight. In this context, it is known housing of exhaust gas heat exchangers For example, to produce from an aluminum casting with silicon fractions. For cooling of a gas pipes are often performed in such a housing by means of which the one to be cooled Gas through a coolant is conductive. A disadvantage is now that such pipes by, for example while a locomotion of the motor vehicle occurring vibrations the housing can chafe through, which causes small holes in the extreme case. By such Holes can then coolant in the exhaust system occur, so that the engine is damaged. In addition, the leads Abrasion of housing material for using up corrosion inhibitors, which are usually the coolant are added.
Es ist somit Aufgabe der vorliegenden Erfindung, eine Kühlvorrichtung für ein Kraftfahrzeug der eingangs genannten Art zur Verfügung zu stellen, welche weniger anfällig für Abnutzungserscheinungen ist und durch welche Schädigungen des Motors besser vermeidbar sind.It is therefore an object of the present invention, a cooling device for a Motor vehicle of the type mentioned above available put, which less vulnerable for signs of wear is and by what damage of the engine are better avoidable.
Diese Aufgabe wird erfindungsgemäß durch eine Kühlvorrichtung für ein Kraftfahrzeug mit den Merkmalen des Patentanspruchs 1 gelöst. Die Aufgabe wird außerdem durch ein Verfahren zum Herstellen einer Kühlvorrichtung für ein Kraftfahrzeug mit den Merkmalen des Patentanspruchs 6 gelöst. Des Weiteren wird die Aufgabe mittels einer Anlage zum Beschichten wenigstens eines Bereichs einer Innenoberfläche eines Gehäuses einer Kühlvorrichtung für ein Kraftfahrzeug mit den Merkmalen des Patentanspruchs 12 gelöst.These The object is achieved by a cooler for a Motor vehicle solved with the features of claim 1. The Task will as well by a method for manufacturing a cooling device for a motor vehicle solved with the features of claim 6. Furthermore, the task by means of a system for coating at least one region of a inner surface a housing a cooling device for a Motor vehicle solved with the features of claim 12.
Vorteilhafte Ausgestaltungen mit zweckmäßigen und nicht-trivialen Weiterbildungen der Erfindung sind in den übrigen Patentansprüchen angegeben.advantageous Embodiments with appropriate and Non-trivial developments of the invention are specified in the remaining claims.
Um eine Kühlvorrichtung für ein Kraftfahrzeug gemäß dem Oberbegriff des Patentanspruchs 1 bereitzustellen, mittels welcher Abnutzungserscheinungen reduziert sind und durch welche Schädigungen des Motors besser vermeidbar sind, weist das Gehäuse zumindest bereichsweise an einer einem Leitelement zugewandten Oberfläche eine Beschichtung auf. Hierdurch ist der Materialverschleiß durch Scheuern des Leitelements an dem Gehäuse reduziert.Around a cooling device for a Motor vehicle according to the preamble of claim 1, by means of which wear phenomena are reduced and better by what damage the engine are avoidable, the housing has at least partially on a surface facing a guide element a Coating on. As a result, the material wear by scrubbing the guide element on the housing reduced.
Wenn die Beschichtung aus einer metallischen Legierung gebildet ist, ist eine Materialabnutzung durch Scheuern des Leitelements an der Beschichtung in sehr guter Weise minimiert.If the coating is formed of a metallic alloy, is a material wear by rubbing the guide element on the Minimized coating in a very good way.
In weiterer Ausgestaltung ist das Leitelement als Kühlrohr der Kühleinrichtung ausgebildet.In Another embodiment, the guide element as a cooling tube of the cooling device educated.
Es ist von Vorteil, dass das Gehäuse im Wesentlichen aus einer Aluminiumlegierung gebildet ist. Hierdurch können die Vorteile von Aluminium als wesentlichem Werkstoff für das Gehäuse, nämlich die Gewichtsreduktion und die hohe Wärmeleitfähigkeit, genutzt werden, ohne dass es zu einer Abnutzung des Leitelements durch abrasiven Verschleiß am Gehäuse aus Aluminiumlegierung kommt, da das Leitelement nur Kontakt zur Beschichtung hat.It is an advantage that the housing is formed essentially of an aluminum alloy. hereby can the advantages of aluminum as an essential material for the housing, namely the weight reduction and the high thermal conductivity, used be, without causing wear of the guide element by abrasive Wear on casing made of aluminum alloy comes because the guide element only to contact Has coating.
Vorteilhafterweise ist das Leitelement im Wesentlichen aus einer Stahllegierung gebildet. Hierdurch haben Beschichtung und Leitelement gleiche Materialhärten, so dass die Abnutzung beim Aneinanderscheuern reduziert ist.advantageously, the guide element is essentially formed from a steel alloy. As a result, the coating and the guide element have the same hardness, so that the wear when chafing is reduced.
Die Erfindung stellt des Weiteren ein Verfahren zum Herstellen einer Kühlvorrichtung für ein Kraftfahrzeug, insbesondere für einen Abgasrückführungskühler eines Lastkraftwagens, der im Oberbegriff des Patentanspruchs 6 angegebenen Art bereit, bei das Gehäuse zumindest bereichsweise an einer dem Leitelement zugewandten Oberfläche mit einer Beschichtung versehen wird.The The invention further provides a method for manufacturing a cooler for a motor vehicle, especially for an exhaust gas recirculation cooler of a Truck, specified in the preamble of claim 6 Kind of ready with the case at least partially on a surface facing the guide element with a coating is provided.
Hierdurch wird Materialabnutzung beim Scheuern des Leitelements an dem Gehäuse bei einer Fortbewegung des Kraftfahrzeugs verringert.hereby Material wear when scouring the baffle on the housing at a movement of the motor vehicle reduced.
Vorteilhafterweise wird die Oberfläche mit einer metallischen Legierung beschichtet, sodass die Abnutzung des Materials in sehr guter Weise reduziert ist.advantageously, becomes the surface coated with a metallic alloy, so that the wear the material is reduced in a very good way.
Wenn die zu beschichtende Oberfläche des Gehäuses vor der Beschichtung unter hohem Druck mit einem Stoff/Fluid beaufschlagt wird, ist die Beschichtung in sehr guter Weise und mit großer Haftfestigkeit aufbringbar.If the surface to be coated of the housing before the coating under high pressure with a substance / fluid acted upon is, the coating is in a very good manner and with great adhesion be applied.
In weiterer Ausgestaltung wird die zu beschichtende Oberfläche des Gehäuses dabei vor der Beschichtung unter hohem Druck mit H2O beaufschlagt/aktiviert.In a further embodiment, the to be coating surface of the housing thereby applied before the coating under high pressure with H 2 O / activated.
Es ist von Vorteil, dass die Beschichtung mittels eines thermischen Spritzverfahrens aufgebracht wird. Hierdurch ist die Beschichtung sehr kostengünstig und lückenlos aufbringbar. Vorteilhafterweise wird die Beschichtung dabei mittels eines Lichtbogendrahtspritzverfahrens aufgebracht.It is advantageous that the coating by means of a thermal Spraying is applied. This is the coating very inexpensive and completely be applied. Advantageously, the coating is thereby by means of an arc wire spraying applied.
Die Erfindung stellt des Weiteren eine Anlage zum Beschichten wenigstens eines Bereichs einer Innenoberfläche eines Gehäuses einer Kühlvorrichtung für ein Kraftfahrzeug der im Oberbegriff des Patentanspruchs 12 angegebenen Art bereit, die wenigstens einen Beschichtungskopf umfasst, welcher zum Beschichten des Bereichs der Innenoberfläche des Gehäuses durch eine verschließbare Öffnung des Gehäuses in einen Innenbereich des Gehäuses einbringbar ist. Hierdurch ist ein schnelles und kostengünstiges Beschichten der Innenoberfläche des Gehäuses der Kühlvorrichtung möglich, welches das Abnutzen von Material beim Scheuern des Leitelements gegen das Gehäuse reduziert.The The invention further provides an apparatus for coating at least a region of an inner surface a housing a cooling device for a Motor vehicle specified in the preamble of claim 12 Art ready, which comprises at least one coating head, which for Coating of the area of the inner surface of the housing by a closable opening of the housing be introduced into an inner region of the housing is. This is a fast and cost-effective coating of the inner surface of the housing cooler possible, which is the wear of material when scouring the guide element against the case reduced.
In weiterer Ausgestaltung umfasst die Anlage wenigstens einen Hochdruckstrahlkopf, welcher zum Bestrahlen des zu beschichtenden Bereichs der Innenoberfläche des Gehäuses durch die verschließbare Öffnung des Gehäuses in den Innenbereich des Gehäuses einbringbar ist. Hierdurch wird eine gute Beschichtung gewährleistet, da die Oberfläche des Innenbereichs des Gehäuses nun einfach aufraubar und somit die Haftung der Beschichtung vergrößerbar ist.In In another embodiment, the system comprises at least one high-pressure jet head, which for irradiating the area to be coated of the inner surface of the housing through the closable opening of the housing in the interior of the case can be introduced. This ensures a good coating, there the surface the interior of the housing Now simply aufraubar and thus the adhesion of the coating is increased.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnungen.Further Advantages, features and details of the invention will become apparent the following description of a preferred embodiment as well as from the drawings.
Dabei zeigen:there demonstrate:
In
In
In
Dabei
erkennt man ein nahe einer dem Leitelement
Bei
Fortbewegung des Lastkraftwagens passiert nun folgendes:
Durch
Fortbewegen des Lastkraftwagens werden Vibrationen hervorgerufen.
Hierdurch scheuert das Leitelement
Moving the truck causes vibrations. As a result, the guide element scrubs
Dies
hat zum Vorteil, dass die Lebensdauer der als Leitelement
In
Im
dargestellten Ausführungsbeispiel
- 1010
- AbgasrückführungskühlerExhaust gas recirculation cooler
- 1212
- Kühlvorrichtungcooler
- 1414
- Gehäusecasing
- 1616
- Öffnungopening
- 1818
- Öffnungopening
- 2020
- Innenbereichinterior
- 2222
- Kühlrohrcooling pipe
- 2424
- Kühlrohrcooling pipe
- 2626
- Leitelementvane
- 2828
- Oberflächesurface
- 3030
- Noppenburl
- 3232
- Beschichtungcoating
- 3434
- Anlageinvestment
- 3636
- Beschichtungskopfcoating head
- 3838
- HochdruckstrahlkopfHigh pressure jet head
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009020873A DE102009020873A1 (en) | 2009-05-12 | 2009-05-12 | Cooling device for exhaust gas recirculation cooler of a truck, comprises cooling unit, through which cooling medium flows and which has guiding element, by which exhaust gas of combustion engine is coolable in housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009020873A DE102009020873A1 (en) | 2009-05-12 | 2009-05-12 | Cooling device for exhaust gas recirculation cooler of a truck, comprises cooling unit, through which cooling medium flows and which has guiding element, by which exhaust gas of combustion engine is coolable in housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102009020873A1 true DE102009020873A1 (en) | 2010-02-25 |
Family
ID=41566925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102009020873A Withdrawn DE102009020873A1 (en) | 2009-05-12 | 2009-05-12 | Cooling device for exhaust gas recirculation cooler of a truck, comprises cooling unit, through which cooling medium flows and which has guiding element, by which exhaust gas of combustion engine is coolable in housing |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102009020873A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH95121A (en) * | 1921-01-17 | 1922-06-16 | Wurstemberger Franz Von | Heat exchange device, especially for seawater operation. |
| DE102004038180A1 (en) * | 2004-08-06 | 2006-03-16 | Daimlerchrysler Ag | Process for producing a thermally coated cylinder surface with a final chamfer |
| DE202009000865U1 (en) * | 2008-02-08 | 2009-04-02 | Daimler Ag | Internal burner for electric wire spraying |
-
2009
- 2009-05-12 DE DE102009020873A patent/DE102009020873A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH95121A (en) * | 1921-01-17 | 1922-06-16 | Wurstemberger Franz Von | Heat exchange device, especially for seawater operation. |
| DE102004038180A1 (en) * | 2004-08-06 | 2006-03-16 | Daimlerchrysler Ag | Process for producing a thermally coated cylinder surface with a final chamfer |
| DE202009000865U1 (en) * | 2008-02-08 | 2009-04-02 | Daimler Ag | Internal burner for electric wire spraying |
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