EP1848839B1 - Couche protectrice contre la corrosion par gaz chauds dans la chambre de combustion d'un moteur thermique - Google Patents

Couche protectrice contre la corrosion par gaz chauds dans la chambre de combustion d'un moteur thermique Download PDF

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Publication number
EP1848839B1
EP1848839B1 EP06706649A EP06706649A EP1848839B1 EP 1848839 B1 EP1848839 B1 EP 1848839B1 EP 06706649 A EP06706649 A EP 06706649A EP 06706649 A EP06706649 A EP 06706649A EP 1848839 B1 EP1848839 B1 EP 1848839B1
Authority
EP
European Patent Office
Prior art keywords
coating
piston
internal combustion
combustion engine
combustion chamber
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.)
Not-in-force
Application number
EP06706649A
Other languages
German (de)
English (en)
Other versions
EP1848839A2 (fr
Inventor
Günter BÜRKLE
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.)
KS Kolbenschmidt GmbH
Original Assignee
KS Kolbenschmidt 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 KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Publication of EP1848839A2 publication Critical patent/EP1848839A2/fr
Application granted granted Critical
Publication of EP1848839B1 publication Critical patent/EP1848839B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
    • C23C18/1208—Oxides, e.g. ceramics
    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/1225—Deposition of multilayers of inorganic 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
    • C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
    • C23C18/125—Process of deposition of the inorganic material
    • C23C18/1262—Process of deposition of the inorganic material involving particles, e.g. carbon nanotubes [CNT], flakes
    • C23C18/127—Preformed particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating

Definitions

  • the invention relates to a coating of a tribologically highly resilient component of an internal combustion engine according to the features of the preamble of patent claim 1.
  • the invention is therefore based on the object to provide a coating of a tribologically highly resilient component from which results in a high temperature resistant corrosion protection layer for the component.
  • the metals may be selected from the group Si (silicon), Ti (titanium), Zr (zirconium), Al (aluminum, Sn (tin) or Ce (cerium), although the list is not exhaustive (Pyrolysis) at temperatures in particular in the combustion chamber between 200 ° C and 450 ° C completely or partially converted into oxides and sintered together, so that the high-temperature resistant protective layer is formed against hot gas corrosion.
  • a thin coating of the organic / inorganic prepolymer is applied to the component and then subjected to pyrolysis.
  • the particular advantage of the coating is on the one hand, that it is very thin, on the other hand, the baking process (pyrolysis) must not necessarily be made in the manufacture of the component, but can take place after installation of the component and its commissioning.
  • the coating is baked and provides a high temperature resistant protective layer of the piston crown against hot gas corrosion in the combustion chamber of the internal combustion engine, so that the life of the piston is significantly increased.
  • the entire piston crown is provided with the coating according to the invention. If the piston has a combustion bowl, it can be considered that only the combustion bowl is completely coated or even only the bowl edge region of the combustion bowl in order to effectively protect the area particularly stressed there by the hot gas corrosion.
  • the oxidation-resistant metallic particles mixed into the precursors may consist of Al, Cu, Fe, Cr, Ni or Co, the list also not being complete here.
  • an alloy of said metallic particles can be used, which serve to adjust the coefficient of thermal expansion and as a filler to avoid shrinkage cracks during pyrolysis.
  • the thermal expansion coefficient of the coating is adapted to the material of the component by the admixture of said materials and on the other hand, material stresses, in particular shrinkage cracks, effectively prevented.
  • color pigments are added to the coating. It goes without saying that the added color pigments are also heat resistant. For example, black or other dark pigments can be used to increase radiation absorption, resulting in improved heat radiation.
  • metallic pigments are added to the coating.
  • Such metallic pigments serve to increase the reflectance and also effectively prevent hot gas corrosion by reducing the component temperature.
  • the thermal expansion coefficients of the component and of the coating can also be adapted to one another by the metallic pigments, so that the thermal stresses between the coating and the component are reduced.
  • ceramic fillers are added to the coating. These ceramic fillers (in particular nanoparticles) increase the lubricity of the coating, so that not only prevents hot gas corrosion, but also reduces the friction of the coating.
  • a simple and inexpensive manufacturing process is that the coating z. B. by spraying, dipping, knife coating or the like, is applied to the component. This is followed by drying, wherein either after drying the component is subjected to a heat treatment, whereby the coating is baked.
  • this may be waived by the manufacturer of the component, in particular the piston, namely, if the component is supplied to those who install it and then subjected to the heat treatment in the operating state. So it is the rule that a supplier of an automobile manufacturer produces pistons and then provides them with the coating according to the invention, which is initially only dried. If the piston supplied to the car manufacturer or to the manufacturer of the internal combustion engine, it can be installed, wherein the baking of the coating takes place at the first startup of the internal combustion engine. Further measures for the burn-in are then no longer necessary, then the high-temperature-resistant corrosion protection layer is available directly when the internal combustion engine is put into operation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ceramic Engineering (AREA)
  • Nanotechnology (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Paints Or Removers (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Claims (6)

  1. Piston d'un moteur à combustion interne, présentant un revêtement du culot de piston constitué par un prépolymère organique-inorganique, produit à partir d'alcoxydes métalliques et/ou de composés organométalliques polymérisables pouvant être chauffés au four dans des solvants organiques, qui est pyrolysé après application sur la pièce, caractérisé en ce que des pigments métalliques sont mélangés dans le revêtement.
  2. Piston selon la revendication 1, caractérisé en ce que des pigments colorés sont mélangés dans le revêtement.
  3. Piston selon la revendication 1 ou 2, caractérisé en ce que des particules céramiques, en particulier des nanoparticules, sont mélangées dans le revêtement.
  4. Piston selon l'une quelconque des revendications 1, 2 ou 3, caractérisé en ce qu'au moins deux des types de pigments sont mélangés dans le revêtement.
  5. Piston d'un moteur à combustion interne, caractérisé par un revêtement selon l'une quelconque des revendications 1 à 4 d'au moins un bord d'une cavité formant la chambre de combustion se trouvant dans le culot du piston.
  6. Piston d'un moteur à combustion interne selon la revendication 5, caractérisé par un revêtement selon l'une quelconque des revendications 1 à 4 de la cavité complète formant la chambre de combustion.
EP06706649A 2005-02-15 2006-02-04 Couche protectrice contre la corrosion par gaz chauds dans la chambre de combustion d'un moteur thermique Not-in-force EP1848839B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005006671A DE102005006671A1 (de) 2005-02-15 2005-02-15 Schutzschicht gegen Heißgaskorrision im Verbrennungsraum einer Brennkraftmaschine
PCT/EP2006/000991 WO2006087114A2 (fr) 2005-02-15 2006-02-04 Couche protectrice contre la corrosion par gaz chauds dans la chambre de combustion d'un moteur thermique

Publications (2)

Publication Number Publication Date
EP1848839A2 EP1848839A2 (fr) 2007-10-31
EP1848839B1 true EP1848839B1 (fr) 2011-10-05

Family

ID=36072055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706649A Not-in-force EP1848839B1 (fr) 2005-02-15 2006-02-04 Couche protectrice contre la corrosion par gaz chauds dans la chambre de combustion d'un moteur thermique

Country Status (6)

Country Link
US (2) US20080149897A1 (fr)
EP (1) EP1848839B1 (fr)
JP (1) JP2008533349A (fr)
AT (1) ATE527395T1 (fr)
DE (1) DE102005006671A1 (fr)
WO (1) WO2006087114A2 (fr)

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DE102008034428B4 (de) * 2008-07-24 2011-06-16 Ks Kolbenschmidt Gmbh Verfahren zur Herstellung eines Kolbens einer Brennkraftmaschine
WO2013066924A1 (fr) * 2011-10-31 2013-05-10 Federal-Mogul Corporation Piston revêtu et procédé de fabrication de ce dernier
WO2013080389A1 (fr) * 2011-12-02 2013-06-06 日本碍子株式会社 Structure de chambre de combustion de moteur
JPWO2013125704A1 (ja) * 2012-02-22 2015-07-30 日本碍子株式会社 エンジン燃焼室構造、および流路の内壁構造
WO2013129430A1 (fr) * 2012-02-27 2013-09-06 日本碍子株式会社 Élément thermo-isolant et structure de chambre de combustion de moteur
JP5904425B2 (ja) 2014-03-27 2016-04-13 スズキ株式会社 陽極酸化皮膜及びその処理方法並びに内燃機関用ピストン
JP6418498B2 (ja) * 2014-03-27 2018-11-07 スズキ株式会社 陽極酸化処理方法及び内燃機関の構造
DE102014224830B4 (de) * 2014-12-04 2022-10-20 Volkswagen Aktiengesellschaft Brennkraftmaschine und Kraftfahrzeug
CN109072397B (zh) 2016-04-08 2021-08-31 沃尔沃卡车集团 用于内燃发动机的气缸的活塞
DE102021210995A1 (de) * 2021-09-30 2023-03-30 Federal-Mogul Nürnberg GmbH Oxidationsschutz-Schicht für Motorkolben aus Stahl oder einer eisenbasierten Legierung

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Also Published As

Publication number Publication date
US20120180748A1 (en) 2012-07-19
WO2006087114A3 (fr) 2008-09-12
US20080149897A1 (en) 2008-06-26
ATE527395T1 (de) 2011-10-15
WO2006087114A2 (fr) 2006-08-24
DE102005006671A1 (de) 2006-08-17
EP1848839A2 (fr) 2007-10-31
JP2008533349A (ja) 2008-08-21

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