WO2018202860A1 - Thermisch isolierende beschichtung für einen aluminiumkolben - Google Patents
Thermisch isolierende beschichtung für einen aluminiumkolben Download PDFInfo
- Publication number
- WO2018202860A1 WO2018202860A1 PCT/EP2018/061520 EP2018061520W WO2018202860A1 WO 2018202860 A1 WO2018202860 A1 WO 2018202860A1 EP 2018061520 W EP2018061520 W EP 2018061520W WO 2018202860 A1 WO2018202860 A1 WO 2018202860A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polysilazane
- layer
- polysiloxane
- piston
- oxide layer
- 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
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- 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
- F02F3/12—Pistons having surface coverings on piston heads
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
- C23C28/042—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material including a refractory ceramic layer, e.g. refractory metal oxides, ZrO2, rare earth oxides
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
-
- 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
- F02F3/0084—Pistons the pistons being constructed from specific materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/01—Pistons; Trunk pistons; Plungers characterised by the use of particular materials
-
- 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
- F02F2200/00—Manufacturing
Definitions
- the present invention relates to an aluminum piston, in particular for an internal combustion engine, with a
- Coating which has a plasma oxide layer and a
- Sealant layer comprises, as well as a process for its preparation.
- thermal spraying layers are used. Although this method allows the application of different materials, but is the
- Coating which has a plasma oxide layer and a
- the invention relates to an aluminum piston, in particular an aluminum piston for an internal combustion engine, wherein a region of the piston comprises a plasma oxide layer having a coating which is a polymer on polysilazane,
- the present invention relates to a
- Polysilazane, water glass or polysiloxane base is applied.
- pistons of aluminum alloys can be coated, which are used for the gravity casting of engine pistons. These usually have a silicon content of 8 wt .-% to 20 wt .-%, preferably 8.5 ° wt .-% to 13 wt .-%. Also favorable is a low copper content of up to 5.4% by weight, preferably
- Polysilazane, water glass or polysiloxane base comprises (hereinafter also as a layer on polysilazane,
- Waterglass or polysiloxane base Preferred is a polysilazane-based layer.
- Polysiloxane-based may be a multi-layer system, wherein for the individual layers different base materials and / or additives are used.
- a double layer can be used, which consists of a lower, preferably thin, layer
- inorganic polysilazane and a top layer of organic polysilazane modified with additives are inorganic polysilazane and a top layer of organic polysilazane modified with additives.
- both inorganic and an organic polysilazane can be used as a base.
- the invention can be used as a base.
- Polysilazane-based coatings are conventionally used for electronic components. The commercial for it
- 20% perhydropolysilazane can be used in dibutyl ether (e.g., from Merck).
- the organic polysilazanes may have different radicals R 1 and R 2 , for example a polysilazane modified with vinyl groups can be used. You can in different
- Solvents such as butyl acetate, be dissolved. These solutions may optionally contain other organic admixtures. Examples of suitable organic polysilazanes are HTT 1800 (Merck KGaA) and HTA 1500 (KiON Defense
- the reaction of the polysilazane with atmospheric moisture, water or alcohol forms a polysiloxane layer, which in the case of the inorganic polysilazane is an amorphous quartz glass layer.
- the basis of the polysiloxane-based coating can be any suitable polysiloxane-based coating.
- R 1 is either H or an alkyl group, preferably H or Ci-Cio alkyl group, more preferably H or C1-C5
- R 2 and R 3 are each independently H or an alkyl group, preferably H or C 1 -C 10 alkyl group, more preferably H or C 1 -C 5 alkyl group.
- Preferred is a polysiloxane in which when R 2 is H, R 3 is an alkyl group, and when R 3 is H, R 2 is an alkyl group.
- the alkyl group of R 1 , R 2 and R 3 is either a branched or unbranched hydrocarbon chain. Furthermore, the alkyl groups may be substituted with halogens such as F, Cl, Br or I
- a high temperature resistant polysiloxane is used.
- a piston according to the invention has at least one region which comprises a plasma oxide layer.
- a region of the piston crown preferably the entire
- piston head including well region a plasma oxide layer. Particularly preferred is only the outer region of the Piston bottom without the trough covered with a plasma oxide layer.
- the plasma oxide layer can, in a known manner,
- PEO plasma electrolytic oxidation
- such layers are made by Keronite (product name: Keronite), Henkel (ECC or EC2) and AHC (Kepla coat). The layers thus obtained are porous.
- the plasma oxide layer A1 comprises 2 0 3 and / or Ti0 2 .
- Plasma oxide layer in the range of over 40 ym, more preferably from 70 to 130ym.
- the sealing of the plasma oxide layer is carried out by
- the polymers penetrate into the pores of the oxide layer and seal them.
- the thickness of the coating based on polysilazane, waterglass or polysiloxane is above the plasma oxide layer preferably 0.2 ym to 40 ym, with high layer thicknesses can usually be prepared only by means of organic polysilazanes.
- the thickness of the coating is preferably based on polysilazane, waterglass or polysiloxane, in particular when using inorganic polysilazane, 0.2 ⁇ m to 10 ⁇ m and particularly preferably 0.5 ⁇ m to 2 ⁇ m.
- the total thickness of the layer consisting of oxide and polysilazane, Water glass or polysiloxane thus corresponds to the sum of the thickness of the plasma oxide layer and the opaque
- Polymer layer It is possible the polysilazane, polysiloxane or waterglass-based layer by adding additives
- Zirconia powder, BN, enamel glass powder, glass hollow spheres, corundum powder, T1O 2 oa These powders advantageously have a particle size of 0.1 .mu.m to 25 ym. In this way, thicker layers can be produced.
- layer thicknesses of up to 100 ⁇ m can be achieved if a filler, for example ZrC> 2 , glass powder (hollow glass spheres) and / or TIO 2 , is added. In this way, if necessary, a layer with particularly good thermal insulation effect can be generated.
- a filler for example ZrC> 2 , glass powder (hollow glass spheres) and / or TIO 2 .
- the glass powders are preferably selected so that their coefficient of thermal expansion corresponds approximately to that of the aluminum piston.
- the average size of the glass particles is preferably in the range of 3 to 10 ⁇ m. suitable
- Glass systems are e.g. 8472 (lead borate glass), 8470
- G018-198 lead-free passivation glass
- G018-311 barium silicate glass
- the present invention relates to a method for producing the layer and its use as a thermal insulation layer of the piston in an internal combustion engine. These methods include the oxidation of the flask and the application of the above-described layer to polysilazane, Polysiloxane or water glass base on the plasma oxide layer.
- the polysilazane, polysiloxane or waterglass-based layer may be cured at room temperature in a manner known to those skilled in the art, e.g. be applied by wiping, spraying, dipping or brushing.
- the composition thus applied is preferably heated to a temperature of 15 ° C to 255 ° C for crosslinking.
- the polysilazane-based coating converts to a Si0 2 -based coating in the following days under the action of atmospheric moisture, water or alcohol. In all three cases Si0 2 ⁇ networks are formed which have a very low thermal conductivity.
- Polysiloxane or water glass base is, contrary to those known in the art, which are produced by means of a sol-gel process, non-porous and therefore gas-tight. For this reason, the layer can not be soaked with fuel, so that the coating has no negative impact on the combustion.
- Plasma oxide layer ensured.
- the sealing layer to the plasma oxide layer, it is possible, the heat-insulating effect of the plasma oxide layer with the very low thermal conductivity, gas impermeable sealing layer to produce an efficient, thermally insulating layer.
- the low thermal conductivity of the oxide Si0 2 composite layer it is possible by the low thermal conductivity of the oxide Si0 2 composite layer to increase the combustion temperature and thus to increase the efficiency of the combustion.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Ceramic Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/610,615 US20200072159A1 (en) | 2017-05-05 | 2018-05-04 | Thermally insulating coating for an aluminum piston |
| EP18727684.5A EP3619337A1 (de) | 2017-05-05 | 2018-05-04 | Thermisch isolierende beschichtung für einen aluminiumkolben |
| JP2019559070A JP2020519802A (ja) | 2017-05-05 | 2018-05-04 | アルミニウムピストン用の熱絶縁コーティング |
| CN201880025460.6A CN110520554A (zh) | 2017-05-05 | 2018-05-04 | 用于铝质活塞的隔热涂层 |
| KR1020197032734A KR20200003817A (ko) | 2017-05-05 | 2018-05-04 | 알루미늄 피스톤용 단열 코팅 |
| BR112019020795A BR112019020795A2 (pt) | 2017-05-05 | 2018-05-04 | revestimento termicamente isolante para um pistão de alumínio |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017207589.9 | 2017-05-05 | ||
| DE102017207589.9A DE102017207589A1 (de) | 2017-05-05 | 2017-05-05 | Thermisch isolierende Beschichtung für einen Aluminiumkolben |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018202860A1 true WO2018202860A1 (de) | 2018-11-08 |
Family
ID=62386371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/061520 Ceased WO2018202860A1 (de) | 2017-05-05 | 2018-05-04 | Thermisch isolierende beschichtung für einen aluminiumkolben |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20200072159A1 (de) |
| EP (1) | EP3619337A1 (de) |
| JP (1) | JP2020519802A (de) |
| KR (1) | KR20200003817A (de) |
| CN (1) | CN110520554A (de) |
| BR (1) | BR112019020795A2 (de) |
| DE (1) | DE102017207589A1 (de) |
| WO (1) | WO2018202860A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898493A (zh) * | 2020-07-07 | 2022-01-07 | 马勒国际有限公司 | 用于涂覆活塞的方法 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6729233B2 (ja) * | 2016-09-20 | 2020-07-22 | 日本軽金属株式会社 | ペリクル用支持枠及びペリクル並びにその製造方法 |
| CN109321961B (zh) * | 2018-11-19 | 2019-09-20 | 滨州渤海活塞有限公司 | 一种铝活塞顶面热障涂层制备装置及方法 |
| CN111206275B (zh) * | 2020-02-17 | 2021-04-06 | 王勇 | 一种用于铝合金阳极氧化膜的耐强酸及强碱性封孔处理方法 |
| DE102020208366A1 (de) | 2020-07-03 | 2022-01-05 | Mahle International Gmbh | Kolben für eine Brennkraftmaschine sowie Brennkraftmaschine |
| CN113088859A (zh) * | 2021-03-30 | 2021-07-09 | 潍柴动力股份有限公司 | 复合涂层、活塞、发动机和车辆 |
| US11719184B1 (en) * | 2022-01-21 | 2023-08-08 | Tenneco Inc. | Piston with engineered crown coating and method of manufacturing |
| DE102024112940A1 (de) | 2023-06-28 | 2025-01-02 | Mahle International Gmbh | Kolben für eine Brennkraftmaschine und Verfahren zur Herstellung des Kolbens |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2383833A (en) * | 2001-12-27 | 2003-07-09 | Perkins Engines Co Ltd | Piston with a ceramic reinforced ring groove |
| EP2154268A2 (de) * | 2008-08-06 | 2010-02-17 | Aisin Seiki Kabushiki Kaisha | Aluminiumlegierungselement und Herstellungsverfahren dafür |
| WO2013038249A2 (en) * | 2011-09-12 | 2013-03-21 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine and method for manufacturing the same |
| US20140318974A1 (en) * | 2013-04-29 | 2014-10-30 | Keronite International Limited | Corrosion and erosion-resistant mixed oxide coatings for the protection of chemical and plasma process chamber components |
| WO2015019145A2 (en) * | 2013-08-05 | 2015-02-12 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine and manufacturing method therefor |
| WO2016024376A1 (en) * | 2014-08-11 | 2016-02-18 | Toyota Jidosha Kabushiki Kaisha | Method for manufacturing piston for direct injection engine |
| US20160130716A1 (en) * | 2014-11-07 | 2016-05-12 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Forming method of thermal insulation film |
| US20160186654A1 (en) * | 2014-12-26 | 2016-06-30 | Toyota Jidosha Kabushiki Kaisha | Forming method of thermal insulation film and internal combustion engine |
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| DE19680596C1 (de) * | 1995-07-28 | 2001-08-23 | Electro Chem Eng Gmbh | Verfahren zur Einlagerung von Solen in mikroporöse Deckschichten auf Gegenständen aus Aluminium, Magnesium, Titan oder deren Legierungen und Gegenstände aus Magnesium, Titan oder deren Legierungen mit Sol-behandelten Deckschichten |
| JP4438609B2 (ja) * | 2004-11-16 | 2010-03-24 | アイシン精機株式会社 | ピストン |
| JP3847770B1 (ja) * | 2005-06-13 | 2006-11-22 | 慎介 望月 | セラミックス被覆金属材およびその製造方法 |
| JP6125498B2 (ja) * | 2011-06-15 | 2017-05-10 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンHenkel AG & Co. KGaA | 内燃機関におけるエミッション低減及び/又は摩擦低減をするための方法及び装置 |
| JP6065388B2 (ja) * | 2012-03-07 | 2017-01-25 | マツダ株式会社 | 断熱皮膜構造及びその製造方法 |
| CN103484849B (zh) * | 2013-09-13 | 2015-11-18 | 邓才松 | 一种铝合金活塞及精密摩擦副表面处理方法 |
| JP6195780B2 (ja) * | 2013-10-30 | 2017-09-13 | アイシン精機株式会社 | ピストンおよびピストンの製造方法 |
| CN104131324A (zh) * | 2014-08-12 | 2014-11-05 | 广西玉柴机器股份有限公司 | 一种内燃机的铝合金活塞 |
| JP2016089264A (ja) * | 2014-11-11 | 2016-05-23 | トヨタ自動車株式会社 | 内燃機関の断熱膜の製造方法 |
-
2017
- 2017-05-05 DE DE102017207589.9A patent/DE102017207589A1/de not_active Ceased
-
2018
- 2018-05-04 US US16/610,615 patent/US20200072159A1/en not_active Abandoned
- 2018-05-04 CN CN201880025460.6A patent/CN110520554A/zh active Pending
- 2018-05-04 EP EP18727684.5A patent/EP3619337A1/de not_active Withdrawn
- 2018-05-04 JP JP2019559070A patent/JP2020519802A/ja active Pending
- 2018-05-04 WO PCT/EP2018/061520 patent/WO2018202860A1/de not_active Ceased
- 2018-05-04 BR BR112019020795A patent/BR112019020795A2/pt not_active Application Discontinuation
- 2018-05-04 KR KR1020197032734A patent/KR20200003817A/ko not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2383833A (en) * | 2001-12-27 | 2003-07-09 | Perkins Engines Co Ltd | Piston with a ceramic reinforced ring groove |
| EP2154268A2 (de) * | 2008-08-06 | 2010-02-17 | Aisin Seiki Kabushiki Kaisha | Aluminiumlegierungselement und Herstellungsverfahren dafür |
| WO2013038249A2 (en) * | 2011-09-12 | 2013-03-21 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine and method for manufacturing the same |
| US20140318974A1 (en) * | 2013-04-29 | 2014-10-30 | Keronite International Limited | Corrosion and erosion-resistant mixed oxide coatings for the protection of chemical and plasma process chamber components |
| WO2015019145A2 (en) * | 2013-08-05 | 2015-02-12 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine and manufacturing method therefor |
| WO2016024376A1 (en) * | 2014-08-11 | 2016-02-18 | Toyota Jidosha Kabushiki Kaisha | Method for manufacturing piston for direct injection engine |
| US20160130716A1 (en) * | 2014-11-07 | 2016-05-12 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Forming method of thermal insulation film |
| US20160186654A1 (en) * | 2014-12-26 | 2016-06-30 | Toyota Jidosha Kabushiki Kaisha | Forming method of thermal insulation film and internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898493A (zh) * | 2020-07-07 | 2022-01-07 | 马勒国际有限公司 | 用于涂覆活塞的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112019020795A2 (pt) | 2020-04-28 |
| CN110520554A (zh) | 2019-11-29 |
| EP3619337A1 (de) | 2020-03-11 |
| US20200072159A1 (en) | 2020-03-05 |
| KR20200003817A (ko) | 2020-01-10 |
| JP2020519802A (ja) | 2020-07-02 |
| DE102017207589A1 (de) | 2018-11-08 |
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