DE202009016174U1 - Exhaust gas turbine with a self-cleaning coating - Google Patents
Exhaust gas turbine with a self-cleaning coating Download PDFInfo
- Publication number
- DE202009016174U1 DE202009016174U1 DE200920016174 DE202009016174U DE202009016174U1 DE 202009016174 U1 DE202009016174 U1 DE 202009016174U1 DE 200920016174 DE200920016174 DE 200920016174 DE 202009016174 U DE202009016174 U DE 202009016174U DE 202009016174 U1 DE202009016174 U1 DE 202009016174U1
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- Prior art keywords
- turbine
- exhaust gas
- coating
- self
- turbocharger
- 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.)
- Expired - Lifetime
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229910052596 spinel Inorganic materials 0.000 claims description 5
- 239000011029 spinel Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910020068 MgAl Inorganic materials 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 3
- 239000010763 heavy fuel oil Substances 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/284—Selection of ceramic materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/007—Preventing corrosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/30—Preventing corrosion or unwanted deposits in gas-swept spaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/90—Coating; Surface treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/95—Preventing corrosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/21—Oxide ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/21—Oxide ceramics
- F05D2300/211—Silica
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/21—Oxide ceramics
- F05D2300/2112—Aluminium oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/21—Oxide ceramics
- F05D2300/2118—Zirconium oxides
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Supercharger (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Technisches GebietTechnical area
Die Erfindung betrifft einen Abgasturbolader für eine Brennkraftmaschine mit einer turbinenseitig an einer inneren Oberfläche vorgesehenen selbstreinigenden Beschichtung.The The invention relates to an exhaust gas turbocharger for an internal combustion engine with a turbine side provided on an inner surface self-cleaning coating.
Stand der TechnikState of the art
Für die Leistungssteigerung einer Verbrennungskraftmaschine werden heutzutage standardmässig Abgasturbolader mit einem der Verbrennungskraftmaschine vorgelagerten Verdichter und einer daran verbundenen Turbine im Abgastrakt der Verbrennungskraftmaschine eingesetzt. Mit der Aufladung eines Verbrennungsmotors wird die Füllmenge und somit die Kraftstoffmenge in den Zylindern erhöht und daraus ein merklicher Leistungsanstieg gewonnen. Bei gewissen Motoranwendungen im Marinesektor (Medium Speed Motoren) wird nebst Dieseltreibstoff auch Schweröl (Heavy Fuel Oil HFO) als Brennstoff eingesetzt. Das Schweröl (HFO) zeichnet sich durch einen hohen Anteil an Schwefel, Vanadium, Natrium, Nickel und Wasser sowie weiterer Elemente aus. Im Vergleich zu den höherwertigen Kraftstoffen wie Diesel oder Kerosin entsteht bei der Verbrennung von HFO ein übermässiger Anteil an schädigenden Ablagerungen in den Abgasleitungen sowie, im Strömungsbereich der Abgasturbinen, auf den Turbinenschaufeln und den Turbinenkanalkonturen sowie insbesondere den Leitelementen (Leitschaufeln) der Leitvorrichtung (Düsenring), welche den Turbinenschaufeln im Strömungskanal vorgeschaltet ist. Die Ablagerungen in den schmalen Leitschaufelpassagen des Düsenrings führen zu einer Versperrung der Strömungsquerschnitte, beeinträchtigen das Betriebsverhalten der Turbine und reduzieren den Wirkungsgrad des gesamten Aufladesystems. Weiter reduzieren die Ablagerungen auf den Kanalwänden das Spiel zwischen den Turbinenschaufelspitzen und der entsprechenden Gegenkontur. Durch die fortschreitende Verschmutzung und die damit einhergehende Verdickung der Ablagerung können die Schaufelenden der Turbine zusehends durch Abrasion verschleissen. Nach erfolgter Reinigung eines Turboladers (Service) und der Entfernung der Ablagerungen ergeben sich in der Folge zu grosse Spitzenspiele, wodurch sich der Laderwirkungsgrad für den weiteren Betrieb reduzieren kann.For The increase in performance of an internal combustion engine are nowadays Standard turbocharger with one of the internal combustion engine upstream compressor and an associated turbine in the Exhaust tract of the internal combustion engine used. With the charge an internal combustion engine is the filling quantity and thus the Increases fuel quantity in the cylinders and from it noticeable increase in performance gained. For certain engine applications in the marine sector (medium speed engines) is in addition to diesel fuel heavy fuel oil (HFO) is also used as fuel. The heavy oil (HFO) is characterized by a high proportion on sulfur, vanadium, sodium, nickel and water and others Elements off. Compared to the higher quality fuels Like diesel or kerosene, combustion of HFO causes an excessive amount of heat Proportion of harmful deposits in the exhaust pipes and, in the flow area of the exhaust gas turbines, on the turbine blades and the turbine duct contours and in particular the guide elements (Guide vanes) of the guide (nozzle ring), which the Turbine blades in the flow channel is connected upstream. The deposits in the narrow vane passages of the nozzle ring lead to obstruction of the flow cross sections, affect the performance of the turbine and reduce the efficiency of the entire charging system. Further reduce the deposits on the canal walls the game between the turbine blade tips and the corresponding counter contour. Due to the progressive pollution and the associated Thickening of the deposit can make the blade ends of the Turbine increasingly worn due to abrasion. After cleaning a turbocharger (service) and the removal of deposits result in the episode too big top games, resulting in reduce the supercharger efficiency for further operation can.
Um einen dauerhaft störungsfreien Betrieb bei voller Leistungsfähigkeit gewährleisten zu können, werden die verunreinigten Teile herkömmlicher Abgasturbolader, d. h. die Turbinenschaufeln und insbesondere die Leitelemente der Leitvorrichtung, in regelmässigen Abständen mittels einer in den Abgasstrom im Strömungskanal eingespritzten Reinigungsflüssigkeit von den Ablagerungen befreit.Around a permanently trouble-free operation at full capacity to be able to ensure that the contaminated Parts of conventional exhaust gas turbochargers, d. H. the turbine blades and in particular the guide elements of the guide, in regular Intervals by means of a in the exhaust stream in the flow channel Injected cleaning fluid from the deposits freed.
Aus
Kurze Darstellung der ErfindungBrief description of the invention
Die Aufgabe der vorliegenden Erfindung besteht darin, die Ablagerungen auf den Turbinenschaufeln und den Turbinenkanalkonturen sowie insbesondere den Leitelementen der Leitvorrichtung zu verringern, und insbesondere vollständig zu verhindern.The Object of the present invention is the deposits on the turbine blades and the turbine channel contours and in particular reduce the vanes of the guide, and in particular completely prevent.
Erfindungsgemäss weisen die der Strömung ausgesetzten Teile der Turbine des Abgasturboladers an einer der Strömung ausgesetzten Oberfläche eine selbstreinigende oder schmutzabweisende Beschichtung auf.According to the invention indicate the flow-exposed parts of the turbine the exhaust gas turbocharger at one of the flow exposed Surface a self-cleaning or stain-resistant Coating on.
Die selbstreinigende oder schmutzabweisende Beschichtung führt zu einer verminderten Haftung von Substanzen an der Oberfläche. Verunreinigungen haften daher nicht oder nur in vermindertem Masse an der inneren Oberfläche, wenn sie auf diese auftreffen.The self-cleaning or dirt-repellent coating leads to a reduced adhesion of substances to the surface. Impurities are therefore not liable or only to a reduced extent on the inner surface when they hit them.
Gemäss einer Ausführungsform der Erfindung weist die Beschichtung ein keramisches Material auf. Keramische Materialien lassen sich fest mit den in der Regel metallischen Grundwerkstoffen des Turboladers verbinden und haben den Vorzug, dauerhaft genug zu sein, den Turbolader während seiner gesamten Lebensdauer vor Ablagerungen zu schützen.According to An embodiment of the invention comprises the coating a ceramic material. Ceramic materials can be firmly with the usually metallic base materials of the turbocharger connect and have the preference to be durable enough, the turbocharger during its entire life before deposits too protect.
Gemäss einer Ausführungsform weist die Beschichtung Zirkoniumdioxid, Aluminiumoxid, Spinell oder Siliziumdioxid auf, wobei auch mehrere dieser Bestandteile kombiniert sein können. Da das thermische Ausdehnungsverhalten von Zirkoniumdioxid besonders gut mit im Turboladerbau verwendeten metallischen Grundwerkstoffen übereinstimmt, wird bei Einsatz dieses Materials die Gefahr innerer Spannungen in der Beschichtung reduziert. Durch Verwendung von Aluminiumoxid, Spinell oder Siliziumdioxid wird erreicht, dass organische Verbindungen auf der Beschichtung eine besonders schlechte Haftung haben und damit die Bildung von Ablagerungen besonders weitgehend vermieden wird.According to In one embodiment, the coating comprises zirconia, Alumina, spinel or silica on, with several These ingredients can be combined. Because the thermal Expansion behavior of zirconium dioxide particularly good in turbocharger construction used metallic base materials is When using this material, the risk of internal tension in the Coating reduced. By using alumina, spinel or silicon dioxide is achieved that organic compounds on the coating have a particularly poor adhesion and so that the formation of deposits is largely avoided becomes.
Dank der beschichteten Bauteile im Strömungsbereich der Turbine können die Reinigungsintervalle der Turbine verlängert werden, bzw. es kann auf eine zusätzliche Turbinenreinigung ausserhalb des ordentlichen Turbinenservices ganz verzichtet werden.thanks the coated components in the flow region of the turbine can extend the cleaning intervals of the turbine be, or it may be on an additional turbine cleaning be completely dispensed with outside the ordinary turbine service.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Nachfolgend werden verschiedene Ausführungsformen der Erfindung anhand von Zeichnungen detailliert erläutert. Hierbei zeigtfollowing Various embodiments of the invention are based on detailed explanations of drawings. This shows
Weg zur Ausführung der ErfindungWay to execution the invention
Erfindungsgemäss sind die der Strömung ausgesetzten Bauteile mit einer selbstreinigenden Beschichtung versehen, um die Ablagerung von Schmutz zu verringern und bestenfalls sogar zu vermeiden. Die Beschichtung ist in den Figuren mit den entlang der Oberflächen gezeichneten Punkten schematisch angedeutet.According to the invention are the flow-exposed components with a self-cleaning coating to reduce the build-up of dirt and at best even to avoid. The coating is in the figures along with the the surfaces drawn points schematically indicated.
Gemäss einer Ausführungsform der Erfindung weist die Beschichtung ein keramisches Material auf. Keramische Materialien lassen sich fest mit den in der Regel metallischen Grundwerkstoffen des Turboladers verbinden und haben den Vorzug, dauerhaft genug zu sein, den Turbolader während seiner gesamten Lebensdauer vor Ablagerungen zu schützen.According to An embodiment of the invention comprises the coating a ceramic material. Ceramic materials can be firmly with the usually metallic base materials of the turbocharger connect and have the preference to be durable enough, the turbocharger during its entire life before deposits too protect.
Gemäss einer Ausführungsform weist die Beschichtung oxidkeramische Materialien, beispielsweise Zirkoniumdioxid (ZrO2), Aluminiumoxid (Al2O3), Spinell (MgAl2O4) oder Siliziumdioxid (SiO2), auf, wobei auch mehrere dieser Bestandteile kombiniert sein können. Da das thermische Ausdehnungsverhalten von Zirkoniumdioxid besonders gut mit im Turboladerbau verwendeten metallischen Grundwerkstoffen übereinstimmt, wird bei Einsatz dieses Materials die Gefahr innerer Spannungen in der Beschichtung reduziert. Durch Verwendung von Aluminiumoxid, Spinell oder Siliziumdioxid wird erreicht, dass Ablagerungen auf der Beschichtung eine besonders schlechte Haftung haben und damit die Bildung von Ablagerungen besonders weitgehend vermieden wird.According to one embodiment, the coating has oxide-ceramic materials, for example zirconium dioxide (ZrO 2 ), aluminum oxide (Al 2 O 3 ), spinel (MgAl 2 O 4 ) or silicon dioxide (SiO 2 ), wherein several of these constituents may also be combined. Since the thermal expansion behavior of zirconium dioxide agrees particularly well with metallic base materials used in turbocharger construction, the risk of internal stresses in the coating is reduced when using this material. By using alumina, spinel or silica it is achieved that deposits on the coating have a particularly poor adhesion and thus the formation of deposits is particularly largely avoided.
Gemäss einer Ausführungsform weist die Beschichtung eine Dicke in der Grössenordnung von 50 μm auf.According to In one embodiment, the coating has a thickness in the order of 50 microns on.
- 1010
- Gaseintrittsgehäuse mit BeschichtungGas inlet casing with coating
- 2020
- Gasaustrittsgehäuse mit BeschichtungGas outlet casing with coating
- 3030
- Laufschaufeln der Turbine mit Beschichtungblades the turbine with coating
- 4040
- Leitschaufeln der Leitvorrichtung mit Beschichtungvanes the guide device with coating
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 1627993 A1 [0004] - EP 1627993 A1 [0004]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE200920016174 DE202009016174U1 (en) | 2009-11-27 | 2009-11-27 | Exhaust gas turbine with a self-cleaning coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200920016174 DE202009016174U1 (en) | 2009-11-27 | 2009-11-27 | Exhaust gas turbine with a self-cleaning coating |
Publications (1)
Publication Number | Publication Date |
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DE202009016174U1 true DE202009016174U1 (en) | 2010-03-04 |
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DE200920016174 Expired - Lifetime DE202009016174U1 (en) | 2009-11-27 | 2009-11-27 | Exhaust gas turbine with a self-cleaning coating |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220081763A1 (en) * | 2020-09-17 | 2022-03-17 | Applied Materials, Inc. | Aluminum oxide protective coatings on turbocharger components and other rotary equipment components |
EP4043607A1 (en) * | 2021-02-12 | 2022-08-17 | Garrett Transportation I Inc. | Turbocharger turbine wheels having an alpha-alumina coating and methods for manufacturing the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1627993A1 (en) | 2004-08-16 | 2006-02-22 | ABB Turbo Systems AG | Exhaust turbine cleaning device |
-
2009
- 2009-11-27 DE DE200920016174 patent/DE202009016174U1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1627993A1 (en) | 2004-08-16 | 2006-02-22 | ABB Turbo Systems AG | Exhaust turbine cleaning device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220081763A1 (en) * | 2020-09-17 | 2022-03-17 | Applied Materials, Inc. | Aluminum oxide protective coatings on turbocharger components and other rotary equipment components |
EP4043607A1 (en) * | 2021-02-12 | 2022-08-17 | Garrett Transportation I Inc. | Turbocharger turbine wheels having an alpha-alumina coating and methods for manufacturing the same |
US11661849B2 (en) | 2021-02-12 | 2023-05-30 | Garrett Transportation I Inc. | Turbocharger turbine wheels having an alpha-alumina coating and methods for manufacturing the same |
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