DE102006003480B3 - Piston ring for diesel engine, has lower flank provided with nitride layer, where trapezoidal area of upper flank is formed nitration layer-free and defined depredation is produced in operating condition - Google Patents
Piston ring for diesel engine, has lower flank provided with nitride layer, where trapezoidal area of upper flank is formed nitration layer-free and defined depredation is produced in operating condition Download PDFInfo
- Publication number
- DE102006003480B3 DE102006003480B3 DE200610003480 DE102006003480A DE102006003480B3 DE 102006003480 B3 DE102006003480 B3 DE 102006003480B3 DE 200610003480 DE200610003480 DE 200610003480 DE 102006003480 A DE102006003480 A DE 102006003480A DE 102006003480 B3 DE102006003480 B3 DE 102006003480B3
- Authority
- DE
- Germany
- Prior art keywords
- piston ring
- tread
- flank
- layer
- upper flank
- 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.)
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Classifications
-
- 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
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/04—Treatment of selected surface areas, e.g. using masks
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/80—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Die Erfindung betrifft einen Kolbenring, mit einer Lauffläche, einer oberen Flanke, einer unteren Flanke sowie einer inneren Umfangsfläche, wobei sich die obere Flanke zumindest partiell in Richtung der inneren Umfangsfläche verjüngt.The The invention relates to a piston ring, with a tread, a upper flank, a lower flank and an inner peripheral surface, wherein the upper flank tapers at least partially in the direction of the inner circumferential surface.
Mit zunehmender Leistungsdichte, sowohl im Otto- als auch im Dieselmotor, nimmt neben der Belastung durch Verschleiß der Lauffläche auch die Beanspruchung durch Flankenverschleiß zu. Die Belastung tritt hier in besonderem Maß an der Unterflanke des Kolbenringes auf. Gleichzeitig kommt es vor allem beim Dieselmotor durch Ablagerungen (Ölkohle) an der Oberflanke zu Funktionsstörungen im Anlageverhalten des Ringes.With increasing power density, both in petrol and diesel engines, takes on the burden of wear of the tread as well the stress due to flank wear too. The burden occurs here in particular the lower edge of the piston ring. At the same time it comes first and foremost in the diesel engine due to deposits (carbon) on the upper flank too dysfunction in the investment behavior of the ring.
Der
Aus
der
Bei
einem Kolbenring gemäß
Aus
der
Durch
die
Der Erfindung liegt die Aufgabe zugrunde, einen einseitig zumindest partiell trapezförmig ausgebildeten Kolbenring bereitzustellen, der neben einem guten Verschleißverhalten im Bereich der Flanken sowie der Lauffläche auch im Hinblick auf den stetig steigenden Kostendruck preiswert herstellbar ist.Of the Invention is based on the object one-sided at least partially trapezoidal trained piston ring provide, in addition to a good wear behavior in the area of the flanks as well as the tread also with regard to the steadily rising cost pressure can be produced inexpensively.
Diese Aufgabe wird dadurch gelöst, dass die untere Flanke mit einer durch Nitrieren erzeugten Oberflächenschicht versehen ist, dass der trapezförmige Bereich der oberen Flanke nitrierschichtfrei ausgebildet ist, und dass durch Anpassung der Nitrierschichtdicke eine definierte Vertwistung im Betriebszustand erzeugt ist.These Task is solved by that the lower flank with a surface layer produced by nitriding is provided that the trapezoidal Area of the upper flank is formed nitrierschichtfrei, and that by adjusting the Nitrierschichtdicke a defined Vertwistung is generated in the operating state.
Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den Unteransprüchen zu entnehmen.advantageous Further developments of the subject invention are the dependent claims remove.
Infolge der auf der unteren Flanke vorgesehenen Nitrierschicht mit einer Schichtdicke zwischen 10 μm und 120 μm kann bei Nitrierschichtfreiheit des trapezförmigen Bereichs der oberen Flanke, in Abhängigkeit von der Schichtdicke der Nitrierschicht, gezielt das Vertwistungsverhalten des Kolbenringes im Betriebszustand beeinflusst werden.As a result the provided on the lower edge nitride layer with a Layer thickness between 10 μm and 120 μm can be at Nitrierschichtfreiheit the trapezoidal region of the upper Flank, depending of the layer thickness of the nitriding layer, specifically the Vertwistungsverhalten of the piston ring are influenced in the operating state.
Mit Ausnahme der zumindest partiell trapezförmig ausgebildeten oberen Flanke kann in Abhängigkeit des jeweiligen Anwendungsfalles auch die Lauffläche und/oder die innere Umfangsfläche mit einer Nitrierschicht vorgebbarer Schichtdicke versehen werden.With Except the at least partially trapezoidal upper edge can depend on the respective application, the tread and / or the inner peripheral surface with a nitriding layer of predeterminable layer thickness are provided.
Bevorzugt zum Einsatz gelangen Stahlkolbenringe, deren obere Flanke mit der Trapezfläche versehen ist.Prefers used steel piston rings whose upper edge with the Trapezoid surface provided is.
Einem weiteren Gedanken der Erfindung gemäß kann die Stahllauffläche, respektive die mit einer Nitrierschicht versehene Lauffläche, mit einer verschleißbeständigen Laufflächenbeschichtung versehen werden, die, abhängig vom Einsatzfall, vollflächig oder in gekammerter Ausführung auf die jeweilige Lauffläche aufgebracht wird.a Another idea of the invention according to the steel tread, respectively the tread provided with a nitriding layer, with a wear resistant tread coating that are dependent from the application, over the entire surface or in a chambered version on the respective tread is applied.
Durch die beschichtete Lauffläche ist es möglich, sich auf die individuellen Verschleißbedingungen im Bereich der Lauffläche einzustellen. Die Unterflanke wird dabei in besonderem Maße durch die Nitrierschicht gegen Flankenverschleiß geschützt. Aufgrund der generell geringeren Beanspruchung der oberen Flanke wird im trapezförmigen Bereich bewusst auf einen zusätzlichen Verschleißschutz verzichtet, wodurch die Herstellung vereinfacht wird und es somit zur angestrebten Kostenreduzierung kommt.The coated tread makes it possible to adjust to the individual wear conditions in the tread area. The lower flank is particularly protected by the nitriding against flank wear. Due to the generally lower stress of the upper flank is in trapezoid Be consciously dispenses with additional wear protection, which simplifies manufacture and thus leads to the targeted cost reduction.
Besonders vorteilhaft ist, wenn die Laufflächenbeschichtung zumindest teilweise bis in den Bereich der oberen Flanke geführt wird. Damit kann sich dieser Flankenabschnitt bei Vertwistung des Kolbenringes im Betriebszustand an der zugehörigen Nutflanke des Kolbens abstützen und trägt somit zu einer weiteren Verschleißreduzierung bei.Especially is advantageous if the tread coating at least partially up to the area of the upper flank is guided. This can be this flank section Vertwistung the piston ring in the operating state at the associated Support the flank of the piston and carries thus contributing to further wear reduction.
Infolge der einseitigen Trapezform im Bereich der oberen Flanke kommt es zur Selbstreinigung und -beseitigung von verbrennungsbedingten Ablagerungen an der oberen Flanke.As a result the one-sided trapezoidal shape in the area of the upper flank occurs for self-cleaning and removal of combustion-related deposits on the upper flank.
Als Laufflächenbeschichtung dient eine verschleißbeständige Beschichtung, welche zum Beispiel durch ein galvanisches, spritztechnisches oder physikalisches Beschichtungsverfahren aufgebracht wird. Der Fachmann wird in Abhängigkeit vom Anwendungsfall eine entsprechende Auswahl treffen.When Tread coating serves a wear-resistant coating, which, for example, by a galvanic, spray-technical or physical Coating process is applied. The expert becomes dependent make an appropriate selection from the application.
Der Erfindungsgegenstand ist anhand eines Ausführungsbeispiels in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen:Of the Subject of the invention is based on an embodiment in the drawing and is described as follows. Show it:
Soweit möglich, werden gleichen Flächen auch gleiche Bezugszeichen zugeordnet.So far possible, be same areas too the same reference numerals assigned.
Der
Kolbenring weist eine obere Flanke
In
Im
Gegensatz zu
Die
jeweilige Laufflächenbeschichtung
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610003480 DE102006003480B3 (en) | 2006-01-25 | 2006-01-25 | Piston ring for diesel engine, has lower flank provided with nitride layer, where trapezoidal area of upper flank is formed nitration layer-free and defined depredation is produced in operating condition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610003480 DE102006003480B3 (en) | 2006-01-25 | 2006-01-25 | Piston ring for diesel engine, has lower flank provided with nitride layer, where trapezoidal area of upper flank is formed nitration layer-free and defined depredation is produced in operating condition |
Publications (1)
Publication Number | Publication Date |
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DE102006003480B3 true DE102006003480B3 (en) | 2007-07-05 |
Family
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Family Applications (1)
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DE200610003480 Active DE102006003480B3 (en) | 2006-01-25 | 2006-01-25 | Piston ring for diesel engine, has lower flank provided with nitride layer, where trapezoidal area of upper flank is formed nitration layer-free and defined depredation is produced in operating condition |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011014483B3 (en) * | 2011-03-19 | 2012-05-10 | Federal-Mogul Burscheid Gmbh | Method for producing piston rings |
WO2014100871A1 (en) * | 2012-12-27 | 2014-07-03 | Mahle Metal Leve S/A | A piston ring and a process for making a piston ring |
DE102013200261A1 (en) * | 2013-01-10 | 2014-07-10 | Federal-Mogul Burscheid Gmbh | Piston ring for internal combustion engines with increased fatigue strength and method for its production |
WO2014113447A3 (en) * | 2013-01-15 | 2014-12-24 | Mahle International Gmbh | Piston ring with localized nitrided coating |
WO2016008920A1 (en) * | 2014-07-16 | 2016-01-21 | Federal-Mogul Burscheid Gmbh | Sliding element, in particular piston ring, and method for producing the same |
US9404578B2 (en) | 2012-03-16 | 2016-08-02 | Federal-Mogul Burscheid Gmbh | Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface |
DE102016104454A1 (en) * | 2016-03-11 | 2017-09-14 | Federal-Mogul Burscheid Gmbh | piston ring |
DE102017007000B3 (en) | 2017-07-26 | 2019-01-03 | Federal-Mogul Burscheid Gmbh | Method for producing a piston ring |
US11408508B2 (en) | 2017-11-30 | 2022-08-09 | Federal-Mogul Burscheid Gmbh | Piston ring |
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US4421328A (en) * | 1982-09-29 | 1983-12-20 | Koppers Company, Inc. | Half-keystone compression ring |
GB2316089A (en) * | 1996-08-03 | 1998-02-18 | British Coal Corp | Arrangement of gasifier spout tube for delivering feedstock and gasifying/fluidising medium |
DE19940022C2 (en) * | 1998-08-31 | 2003-06-12 | Nippon Piston Ring Co Ltd | Piston ring combination for a diesel engine with direct injection |
EP1460318A1 (en) * | 2003-03-21 | 2004-09-22 | Dana Corporation | Piston ring coating |
DE10314034A1 (en) * | 2003-03-28 | 2004-10-21 | Federal-Mogul Burscheid Gmbh | piston ring |
DE10221800B4 (en) * | 2002-05-15 | 2005-04-07 | Federal-Mogul Burscheid Gmbh | Method of producing wear layers on jet piston rings |
DE102004028487A1 (en) * | 2004-06-11 | 2006-01-12 | Mahle Gmbh | Method for producing wear-resistant flanks for a trapezoidal ring for internal combustion engines |
-
2006
- 2006-01-25 DE DE200610003480 patent/DE102006003480B3/en active Active
Patent Citations (7)
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US4421328A (en) * | 1982-09-29 | 1983-12-20 | Koppers Company, Inc. | Half-keystone compression ring |
GB2316089A (en) * | 1996-08-03 | 1998-02-18 | British Coal Corp | Arrangement of gasifier spout tube for delivering feedstock and gasifying/fluidising medium |
DE19940022C2 (en) * | 1998-08-31 | 2003-06-12 | Nippon Piston Ring Co Ltd | Piston ring combination for a diesel engine with direct injection |
DE10221800B4 (en) * | 2002-05-15 | 2005-04-07 | Federal-Mogul Burscheid Gmbh | Method of producing wear layers on jet piston rings |
EP1460318A1 (en) * | 2003-03-21 | 2004-09-22 | Dana Corporation | Piston ring coating |
DE10314034A1 (en) * | 2003-03-28 | 2004-10-21 | Federal-Mogul Burscheid Gmbh | piston ring |
DE102004028487A1 (en) * | 2004-06-11 | 2006-01-12 | Mahle Gmbh | Method for producing wear-resistant flanks for a trapezoidal ring for internal combustion engines |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9352427B2 (en) | 2011-03-19 | 2016-05-31 | Federal-Mogul Burscheid Gmbh | Method for producing piston rings |
CN103384787A (en) * | 2011-03-19 | 2013-11-06 | 辉门布尔沙伊德有限公司 | Method for producing piston rings |
DE102011014483B3 (en) * | 2011-03-19 | 2012-05-10 | Federal-Mogul Burscheid Gmbh | Method for producing piston rings |
CN103384787B (en) * | 2011-03-19 | 2015-10-14 | 辉门布尔沙伊德有限公司 | For the manufacture of the method for piston ring |
US9404578B2 (en) | 2012-03-16 | 2016-08-02 | Federal-Mogul Burscheid Gmbh | Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface |
WO2014100871A1 (en) * | 2012-12-27 | 2014-07-03 | Mahle Metal Leve S/A | A piston ring and a process for making a piston ring |
DE102013200261A1 (en) * | 2013-01-10 | 2014-07-10 | Federal-Mogul Burscheid Gmbh | Piston ring for internal combustion engines with increased fatigue strength and method for its production |
WO2014113447A3 (en) * | 2013-01-15 | 2014-12-24 | Mahle International Gmbh | Piston ring with localized nitrided coating |
US8986465B2 (en) | 2013-01-15 | 2015-03-24 | Mahle Industries Inc. | Piston ring with localized nitrided coating |
WO2016008920A1 (en) * | 2014-07-16 | 2016-01-21 | Federal-Mogul Burscheid Gmbh | Sliding element, in particular piston ring, and method for producing the same |
CN106574376A (en) * | 2014-07-16 | 2017-04-19 | 菲特尔莫古布尔沙伊德有限公司 | Sliding element, in particular piston ring, and method for producing the same |
US10697543B2 (en) | 2014-07-16 | 2020-06-30 | Federal-Mogul Burscheid Gmbh | Sliding element, in particular piston ring, and method for producing the same |
CN106574376B (en) * | 2014-07-16 | 2020-11-27 | 菲特尔莫古布尔沙伊德有限公司 | Sliding element, in particular piston ring, and method for producing a sliding element |
DE102016104454A1 (en) * | 2016-03-11 | 2017-09-14 | Federal-Mogul Burscheid Gmbh | piston ring |
DE102016104454B4 (en) * | 2016-03-11 | 2021-05-27 | Federal-Mogul Burscheid Gmbh | Piston ring |
DE102017007000B3 (en) | 2017-07-26 | 2019-01-03 | Federal-Mogul Burscheid Gmbh | Method for producing a piston ring |
WO2019020143A1 (en) | 2017-07-26 | 2019-01-31 | Federal-Mogul Burscheid Gmbh | Method for producing a piston ring |
US11060609B2 (en) | 2017-07-26 | 2021-07-13 | Federal-Mogul Burscheid Gmbh | Method for producing a piston ring |
US11408508B2 (en) | 2017-11-30 | 2022-08-09 | Federal-Mogul Burscheid Gmbh | Piston ring |
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8100 | Publication of the examined application without publication of unexamined application | ||
8364 | No opposition during term of opposition |