EP2329169A1 - Flat seal - Google Patents
Flat sealInfo
- Publication number
- EP2329169A1 EP2329169A1 EP09765451A EP09765451A EP2329169A1 EP 2329169 A1 EP2329169 A1 EP 2329169A1 EP 09765451 A EP09765451 A EP 09765451A EP 09765451 A EP09765451 A EP 09765451A EP 2329169 A1 EP2329169 A1 EP 2329169A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flat gasket
- gasket according
- layer
- profile body
- material thickening
- 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- Withdrawn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
- 239000000463 material Substances 0.000 claims abstract description 41
- 230000008719 thickening Effects 0.000 claims abstract description 30
- 238000000576 coating method Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 14
- 238000004049 embossing Methods 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- 240000005561 Musa balbisiana Species 0.000 claims description 2
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 238000012876 topography Methods 0.000 claims description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
-
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J15/0825—Flat gaskets laminated
-
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces
- F16J15/123—Details relating to the edges of the packing
-
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J2015/0856—Flat gaskets with a non-metallic coating or strip
-
- 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
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0818—Flat gaskets
- F16J2015/0862—Flat gaskets with a bore ring
Definitions
- the invention relates to a flat gasket, in particular cylinder head gasket or exhaust flange gasket.
- cylinder head gaskets which may consist of several (metallic) layers, which, if necessary, differently formed layers with suitable joining methods (eg., Clinching, welding, riveting) to connect together.
- suitable joining methods eg., Clinching, welding, riveting
- stopper which are additionally applied or introduced rings, layers or embossments, the required height difference on the combustion chamber edge is set to the edge surface region of the flat gasket.
- EP 0 538 628 A2 discloses a sealing arrangement for internal combustion engines with a cylinder head, an engine block, a cylinder liner, which is inserted in a bore of the engine block, is supported on this, a hollow cylindrical part, a radially from the cylindrical part outer extending annular sealing collar, a piston bore and a substantially cylinder head facing collar seal surface and sealing means, which are in engagement with the collar seal surface and a corresponding cylinder head sealing surface to prevent the escape of combustion gases from the piston bore.
- At least one of the two sealing surfaces is truncated cone-shaped and extends continuously from a radially inwardly circumferential region to a radially outer circumferential region, wherein the radially inner region is spaced further to the other sealing surface than the radially outer region.
- the invention has the object to provide a new sealing concept for flat gaskets, in which profile body used, which act as a sealing element. Another goal is to be able to set the force distribution not only within a sealing system, but also in the more remote environment (hinterland) of the flat gasket, usually caused by the screw forces.
- a flat gasket in particular cylinder head gasket or exhaust flange gasket, comprising at least one layer provided with at least one passage opening, the passage opening receiving at least one elastically deformable profile body with defined material thickness designed as an annular profile wire, the total height of the undeformed profile body being the thickness of the layer exceeds, and wherein the situation in the region of the profile body and / or outside of the profile body is at least partially provided with a thickening of material.
- the material thickening can be produced depending on the embodiment by embossing or applying a coating. Also combined material thickening (embossing + coating) are conceivable, as well as the application of a stopper glasses.
- the material thickening is formed by a coating
- the same advantageously consists of a polymer, in particular a thermoplastic or a thermosetting material.
- the coating includes particles and / or fibers.
- both metallic and mineral particles can be provided individually or in combination, wherein the particles and / or fibers have a defined thickness.
- the coating may, according to a further aspect of the invention, be applied by screen printing on the corresponding area of the layer.
- the thickening of the material can either be applied at defined locations along the regions of the layer surrounding the passage opening, or else it is applied in such a way that a closed region of predeterminable wall thickness is formed.
- the profile body seen in the radial direction, is formed with regions of different material thickness.
- regions of different material thickness offers the cross-sectional shape of a banana, in which about the middle of the radial extent of the profile body, the largest material thickness is given, which then decreases toward the end regions.
- a central core area and outer elastically deformable areas are formed.
- the profile body can either be at least partially connected to the position or be positioned radially movable within the passage opening.
- the material thickening outside of the profile body.
- the so-called hinterland of the flat gasket is addressed, which extends into the edge regions of the flat gasket.
- the respective material thickening may be provided partially or over larger areas in the hinterland and may, if necessary, at least partially enclose the screw through holes.
- the aim of the controlled adjustment of the force distribution, in particular the division between the profile body and the adjoining areas of the situation, is z. B. achieved by height differences between the combustion chamber seal and the media seal. If the media and the combustion chamber seal have the same height (additional requirement: the seals used have the same strength and rigidity), the same load distribution can be assumed. If the heights of the media and the combustion chamber seal are different, a higher load is proportionally introduced. However, so that, for example, the combustion chamber seal can absorb a higher proportion of the screw forces, work is carried out with a projection of the combustion chamber seal. This means that the combustion chamber seal must be slightly higher than the media seal.
- the height difference between the combustion chamber seal and the media seal can be precisely adjusted.
- both required and topographical height differences can be realized, for example, to specifically raise or lower the hinterland (for example by coating with different materials and different particle sizes).
- Figure 1 indicated cylinder head gasket embossed on one side
- Figure 2 indicated cylinder head gasket embossed on two sides
- Figure 3 indicated cylinder head gasket with polymeric coating of the layer as material thickening
- FIG. 4 shows a detail enlargement according to FIG. 3;
- Figure 5 top view of a trained as a flat gasket
- FIG. 6 shows a section according to line A-A of FIG. 5.
- Figure 1 shows an indicated only cylinder head gasket, at least including a layer 1, which includes at least one through hole 2.
- the layer 1 formed here as a metallic layer cooperates with a profiled wire formed as an annular profile body 3, which, seen in the radial direction, is approximately banana-shaped.
- the middle region of the profile body 3 forms the region of greatest material thickness, which decreases toward the ends 4, 5 which form bending regions.
- the radially outer end 4 of the profile body 3 is positively connected (for example by caulking) to the opposite region 6 of the layer 1.
- the total height of the undeformed profile body 3 exceeds the thickness of the layer 1.
- a portion a of the layer 1 is provided with a material thickening.
- the material thickening is formed by a one-sided embossing area 7.
- FIG. 2 can be seen in analogy to FIG. 1, two embossing regions 7, 7 'being provided in the region of the layer 1.
- embossing regions 7, 7 ' By corresponding embodiments of the embossing regions 7, 7 ', there is the advantage that height differences can be set very precisely. In this way both required and topographical height differences can be realized. This means that the height difference is adjusted by the heights (or depths) of the embossing 7, 7 '.
- Layer 1 can be embossed in many different ways. It is conceivable hemispherical (dents), rectangular or annular (beads) embossing.
- FIG. 3 shows a variant of FIGS. 1 and 2, wherein here too a region a is provided with a thickening of the material, which in this embodiment is provided by a material thickening Double-sided coating 8,8 'defined material thickness is formed.
- the coating 8,8 ' consists of a polymer, in particular a thermoplastic or a thermosetting material.
- the polymer may contain only a certain amount of particles or fibers, which depends on the particle size (the larger the particles, the higher their proportion should be).
- the coating 8, 8 ' can be provided both on one side and on both sides.
- FIG. 4 shows an enlarged detail of FIG. 3.
- the position 1 and the coatings 8, 8 'applied on both sides can be seen.
- the respective coating 8, 8 ' can be produced by a screen printing process.
- the fact that the particles or fibers 9,9 'correspond to the height difference to be set only has to ensure that all the particles or fibers 9,9' are in one plane.
- the respective layer can be provided in one- or double-sided clad form (for example aluminum), wherein the material thickening is produced, for example by embossing at least one clad area (only in the cladding).
- clad form for example aluminum
- FIG. 5 shows a top view of a cylinder head gasket designed as a flat gasket.
- the cylinder head gasket is to be formed by a single metallic layer 1, which includes a plurality of fürgangsöffhungen 2 acting as Brennraum malgangsörTnungen. Visible are the profile body 3, which are firmly connected to the layer 1. The same conditions apply as those given for FIGS. 1 to 4. All hatched areas of the layer 1 are formed by material thickening 10. It can be seen that not only the immediate area around the respective profile body 3 around, but also the up to the edge regions 11 of the layer 1 extending inland is provided in a targeted manner with the material thickening 10.
- FIG. 6 shows a section according to line A-A of FIG. 5. Recognizable is the banana-shaped profile body 3 and the region b of the material thickening 10 present at this point, which in this example is formed by embossing on both sides.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
Description
Flachdichtung gasket
Die Erfindung betrifft eine Flachdichtung, insbesondere Zylinderkopfdichtung oder Auspuffflanschdichtung.The invention relates to a flat gasket, in particular cylinder head gasket or exhaust flange gasket.
Es ist bekannt bei Zylinderkopfdichtungen, die aus mehreren (metallischen) Lagen bestehen können, die, bedarfsweise unterschiedlich ausgebildeten, Lagen mit geeigneten Fügeverfahren (z. B. Clinchen, Schweißen, Nieten) miteinander zu verbinden. Mit Hilfe so genannter Stopper, das sind zusätzlich auf- bzw. eingebrachte Ringe, Lagen oder Prägungen, wird der benötigte Höhenunterschied am Brennraumrand zum Randflächenbereich der Flachdichtung eingestellt.It is known in cylinder head gaskets, which may consist of several (metallic) layers, which, if necessary, differently formed layers with suitable joining methods (eg., Clinching, welding, riveting) to connect together. With the help of so-called stopper, which are additionally applied or introduced rings, layers or embossments, the required height difference on the combustion chamber edge is set to the edge surface region of the flat gasket.
Der EP 0 538 628 A2 ist eine Dichtungsanordnung für Verbrennungskraftmaschinen zu entnehmen mit einem Zylinderkopf, einem Motorblock, einer Zylinderlaufbuchse, die in einer Bohrung des Motorblocks eingesetzt ist, sich an diesem abstützt, einen hohlen zylindrischen Teil, einen sich radial von dem zylindrischen Teil nach außen erstreckenden ringförmigen Dichtungskragen, eine Kolbenbohrung und eine im Wesentlichen zum Zylinderkopf weisende Kragendichtungsfläche aufweist und Dichtungsmitteln, die mit der Kragendichtungsfläche und einer entsprechenden Zylinderkopfdichtungsfläche in Eingriff stehen, um den Austritt von Verbrennungsgasen aus der Kolbenbohrung zu verhindern. Wenigstens eine der beiden Dichtungsflächen ist kegelstumpfϊbrmig ausgebildet und erstreckt sich stetig von einem radial innen umlaufenden Bereich zu einem radial äußeren umlaufenden Bereich, wobei der radial innere Bereich weiter zu der anderen Dichtungsfläche beabstandet ist als der radial äußere Bereich.EP 0 538 628 A2 discloses a sealing arrangement for internal combustion engines with a cylinder head, an engine block, a cylinder liner, which is inserted in a bore of the engine block, is supported on this, a hollow cylindrical part, a radially from the cylindrical part outer extending annular sealing collar, a piston bore and a substantially cylinder head facing collar seal surface and sealing means, which are in engagement with the collar seal surface and a corresponding cylinder head sealing surface to prevent the escape of combustion gases from the piston bore. At least one of the two sealing surfaces is truncated cone-shaped and extends continuously from a radially inwardly circumferential region to a radially outer circumferential region, wherein the radially inner region is spaced further to the other sealing surface than the radially outer region.
Der Erfindung Hegt die Aufgabe zugrunde, ein neues Abdichtungskonzept für Flachdichtungen zu schaffen, bei welchen Profilkörper zum Einsatz gelangen, die als Dichtelement fungieren. Ein weiteres Ziel ist darin zu sehen, dass die Kraftverteilung nicht nur innerhalb eines Dichtungssystems, sondern auch im entfernteren Umfeld (Hinterland) der Flachdichtung, in der Regel hervorgerufen durch die Schraubenkräfte, gezielt einstellen zu können.The invention has the object to provide a new sealing concept for flat gaskets, in which profile body used, which act as a sealing element. Another goal is to be able to set the force distribution not only within a sealing system, but also in the more remote environment (hinterland) of the flat gasket, usually caused by the screw forces.
Die Aufgabe wird gelöst durch eine Flachdichtung, insbesondere Zylinderkopfdichtung oder Auspufϊϊlanschdichtung, beinhaltend mindestens eine mit mindestens einer Durchgangsöffnung versehene Lage, wobei die Durchgangsόffnung mindestens einen als ringförmigen Profildraht ausgebildeten elastisch verformbaren Profilkörper mit definierter Materialdicke aufnimmt, wobei die Gesamthöhe des unverformten Profilkörpers die Dicke der Lage übersteigt, und wobei die Lage im Bereich des Profilkörpers und/oder außerhalb des Profilkörpers zumindest partiell mit einer Materialverdickung versehen ist.The object is achieved by a flat gasket, in particular cylinder head gasket or exhaust flange gasket, comprising at least one layer provided with at least one passage opening, the passage opening receiving at least one elastically deformable profile body with defined material thickness designed as an annular profile wire, the total height of the undeformed profile body being the thickness of the layer exceeds, and wherein the situation in the region of the profile body and / or outside of the profile body is at least partially provided with a thickening of material.
Vorteilhafte Weiterbildungen des Erfindungsgegenstandes sind den zugehörigen Unteransprüchen zu entnehmen.Advantageous developments of the subject invention can be found in the associated dependent claims.
Die Materialverdickung kann je nach Ausfuhrungsform durch Prägen oder Aufbringen einer Beschichtung erzeugt werden. Auch kombinierte Materialverdickungen (Prägung + Beschichtung) sind denkbar, ebenso wie das Aufbringen einer Stopperbrille.The material thickening can be produced depending on the embodiment by embossing or applying a coating. Also combined material thickening (embossing + coating) are conceivable, as well as the application of a stopper glasses.
Wird die Materialverdickung durch eine Beschichtung gebildet, besteht selbige vorteilhafterweise aus einem Polymer, insbesondere einem thermoplastischen oder einem duroplastischen Material.If the material thickening is formed by a coating, the same advantageously consists of a polymer, in particular a thermoplastic or a thermosetting material.
Von Vorteil kann sein, dass die Beschichtung Partikel und/oder Fasern beinhaltet. Hier können sowohl metallische als auch mineralische Partikel einzeln oder in Kombination vorgesehen werden, wobei die Partikel und/oder Fasern eine definierte Dicke aufweisen. Die Beschichtung kann, einem weiteren Gedanken der Erfindung gemäß, durch Siebdrucken auf dem entsprechenden Bereich der Lage aufgebracht werden.It may be advantageous that the coating includes particles and / or fibers. Here, both metallic and mineral particles can be provided individually or in combination, wherein the particles and / or fibers have a defined thickness. The coating may, according to a further aspect of the invention, be applied by screen printing on the corresponding area of the layer.
Die Materialverdickung kann entweder an definierten Stellen entlang der die Durchgangsöffnung umgebenden Bereichen der Lage aufgebracht werden oder aber sie wird so aufgebracht, dass ein geschlossener Bereich vorgebbarer Wanddicke gebildet wird.The thickening of the material can either be applied at defined locations along the regions of the layer surrounding the passage opening, or else it is applied in such a way that a closed region of predeterminable wall thickness is formed.
Von besonderem Vorteil ist, dass der Profilkörper, in radialer Richtung gesehen, mit Bereichen unterschiedlicher Materialdicke ausgebildet ist. Hier bietet sich beispielsweise die Querschnittsform einer Banane an, bei welcher etwa im mittleren Bereich der radialen Erstreckung des Profilkörpers die größte Materialdicke gegeben ist, die dann zu den Endbereichen hin abnimmt. Durch diese Maßnahme werden ein mittlerer Kernbereich und äußere elastisch verformbare Bereiche gebildet.It is particularly advantageous that the profile body, seen in the radial direction, is formed with regions of different material thickness. Here, for example, offers the cross-sectional shape of a banana, in which about the middle of the radial extent of the profile body, the largest material thickness is given, which then decreases toward the end regions. By this measure, a central core area and outer elastically deformable areas are formed.
Der Profilkörper kann entweder mit der Lage zumindest partiell verbunden sein oder aber radial beweglich innerhalb der Durchgangsöffnung positioniert werden.The profile body can either be at least partially connected to the position or be positioned radially movable within the passage opening.
Von besonderem Vorteil ist, die Materialverdickung auch außerhalb des Profilkörpers vorzusehen. Hier ist das so genannte Hinterland der Flachdichtung angesprochen, das sich bis in die Randbereiche der Flachdichtung erstreckt. Die jeweilige Materialverdickung kann partiell oder über größere Flächenbereiche im Hinterland vorgesehen werden und kann bedarfsweise die Schraubendurchgangslöcher zumindest teilweise umschließen.It is particularly advantageous to provide the material thickening outside of the profile body. Here, the so-called hinterland of the flat gasket is addressed, which extends into the edge regions of the flat gasket. The respective material thickening may be provided partially or over larger areas in the hinterland and may, if necessary, at least partially enclose the screw through holes.
Durch diese Maßnahme kann eine optimale Kraftverteilung innerhalb der gesamten Flachdichtung realisiert werden, durch welche das Dichtverhalten positiv beeinflusst wird.By this measure, an optimal force distribution can be realized within the entire flat gasket, by which the sealing behavior is positively influenced.
Das Ziel der kontrollierten Einstellung der Kraftverteilung, insbesondere der Aufteilung zwischen dem Profilkörper und den sich daran anschließenden Bereichen der Lage, wird z. B. durch Höhenunterschiede zwischen der Brennraumabdichtung und der Mediendichtung erreicht. Weisen die Medien und die Brennraumdichtung die gleiche Höhe auf (zusätzliche Vorraussetzung: die verwendeten Dichtungen weisen die gleiche Festigkeit und Steifigkeit auf), so kann von einer gleichen Lastverteilung ausgegangen werden. Sind die Höhen der Medien- und der Brennraumdichtung unterschiedlich, so wird anteilig eine höhere Belastung eingeleitet. Damit jedoch beispielsweise die Brennraumdichtung einen höheren Anteil der Schraubenkräfte aufnehmen kann, wird mit einem Überstand der Brennraumdichtung gearbeitet. Das bedeutet, die Brennraumdichtung muss etwas höher sein als die Mediendichtung.The aim of the controlled adjustment of the force distribution, in particular the division between the profile body and the adjoining areas of the situation, is z. B. achieved by height differences between the combustion chamber seal and the media seal. If the media and the combustion chamber seal have the same height (additional requirement: the seals used have the same strength and rigidity), the same load distribution can be assumed. If the heights of the media and the combustion chamber seal are different, a higher load is proportionally introduced. However, so that, for example, the combustion chamber seal can absorb a higher proportion of the screw forces, work is carried out with a projection of the combustion chamber seal. This means that the combustion chamber seal must be slightly higher than the media seal.
Durch die erfindungsgemäße flächige oder partielle Materialverdickung an der Lage, kann der Höhenunterschied zwischen der Brennraumdichtung und der Mediendichtung präzise eingestellt werden. Auf diese Weise können sowohl benötigte als auch topographische Höhendifferenzen verwirklicht werden, um beispielsweise das Hinterland gezielt anzuheben bzw. abzusenken (beispielsweise durch die Beschichtung mit unterschiedlichen Materialien und unterschiedlichen Partikelgrößen).Due to the inventive surface or partial material thickening of the situation, the height difference between the combustion chamber seal and the media seal can be precisely adjusted. In this way, both required and topographical height differences can be realized, for example, to specifically raise or lower the hinterland (for example by coating with different materials and different particle sizes).
Der Erfindungsgegenstand ist in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen.The subject invention is illustrated in the drawing and is described as follows. Show it.
Figur 1 angedeutete Zylinderkopfdichtung mit einseitig geprägterFigure 1 indicated cylinder head gasket embossed on one side
Läge als Materialverdickung;Lying as material thickening;
Figur 2 angedeutete Zylinderkopfdichtung mit zweiseitig geprägterFigure 2 indicated cylinder head gasket embossed on two sides
Lage als Materialverdickung;Position as material thickening;
Figur 3 angedeutete Zylinderkopfdichtung mit polymerer Beschichtung der Lage als Materialverdickung;Figure 3 indicated cylinder head gasket with polymeric coating of the layer as material thickening;
Figur 4 Ausschnittsvergrößerung gemäß Figur 3; Figur 5 Draufsicht auf eine als Flachdichtung ausgebildeteFIG. 4 shows a detail enlargement according to FIG. 3; Figure 5 top view of a trained as a flat gasket
Zylinderkopfdichtung mit Materialverdickungen an ausgewählten Bereichen;Cylinder head gasket with material thickening in selected areas;
Figur 6 Schnitt gemäß Linie A-A der Figur 5.FIG. 6 shows a section according to line A-A of FIG. 5.
Figur 1 zeigt eine nur angedeutete Zylinderkopfdichtung, zumindest beinhaltend eine Lage 1, die zumindest eine Durchgangsöffnung 2 beinhaltet. Die hier als metallische Lage ausgebildete Lage 1 wirkt mit einem als Profildraht ausgebildeten ringförmigen Profilkörper 3 zusammen, der, in radialer Richtung gesehen, etwa bananenförmig ausgebildet ist. Der mittlere Bereich des Profilkörpers 3 bildet den Bereich der größten Materialdicke, die zu den - Biegebereiche bildenden - Enden 4,5 hin abnimmt. In diesem Beispiel ist das radial äußere Ende 4 des Profilkörpers 3 formschlüssig (beispielsweise durch Verstemmen) mit dem gegenüberliegenden Bereich 6 der Lage 1 verbunden. Die Gesamthöhe des unverformten Profilkörpers 3 übersteigt die Dicke der Lage 1. Zur Erzeugung einer definierten Kraftverteilung innerhalb der Zylinderkopfdichtung, in der Regel hervorgerufen durch die Schraubenkräfte, wird ein Teilbereich a der Lage 1 mit einer Materialverdickung versehen. In Figur 1 wird die Materialverdickung gebildet durch einen einseitigen Prägebereich 7.Figure 1 shows an indicated only cylinder head gasket, at least including a layer 1, which includes at least one through hole 2. The layer 1 formed here as a metallic layer cooperates with a profiled wire formed as an annular profile body 3, which, seen in the radial direction, is approximately banana-shaped. The middle region of the profile body 3 forms the region of greatest material thickness, which decreases toward the ends 4, 5 which form bending regions. In this example, the radially outer end 4 of the profile body 3 is positively connected (for example by caulking) to the opposite region 6 of the layer 1. The total height of the undeformed profile body 3 exceeds the thickness of the layer 1. To produce a defined distribution of forces within the cylinder head gasket, usually caused by the screw forces, a portion a of the layer 1 is provided with a material thickening. In FIG. 1, the material thickening is formed by a one-sided embossing area 7.
Figur 2 ist in Analogie zu Figur 1 zu sehen, wobei hier zwei Prägebereiche 7,7' im Bereich der Lage 1 vorgesehen sind. Durch entsprechende Ausgestaltungen der Prägebereiche 7,7' ergibt sich der Vorteil, dass Höhendifferenzen sehr genau einstellbar sind. Auf diese Weise können sowohl benötige auch als topographische Höhendifferenzen realisiert werden. Dies bedeutet, die Einstellung des Höhenunterschiedes erfolgt durch die Höhen (oder Tiefen) der Prägung 7,7'. Die Lage 1 kann auf unterschiedlichste Arten geprägt werden. Vorstellbar sind halbkugelförmige (Dellen), rechteckige oder auch ringförmige (Sicken) Prägungen.FIG. 2 can be seen in analogy to FIG. 1, two embossing regions 7, 7 'being provided in the region of the layer 1. By corresponding embodiments of the embossing regions 7, 7 ', there is the advantage that height differences can be set very precisely. In this way both required and topographical height differences can be realized. This means that the height difference is adjusted by the heights (or depths) of the embossing 7, 7 '. Layer 1 can be embossed in many different ways. It is conceivable hemispherical (dents), rectangular or annular (beads) embossing.
Figur 3 zeigt eine Variante zu den Figuren 1 und 2, wobei auch hier ein Bereich a mit einer Materialverdickung versehen ist, die in dieser Ausführungsform durch eine beidseitige Beschichtung 8,8' definierter Materialdicke gebildet ist. Die Beschichtung 8,8' besteht aus einem Polymer, insbesondere einem thermoplastischen oder einem duroplastischen Material. Durch Zugabe von metallischen, keramischen oder mineralischen Partikeln o der Fasern mit einer relativ engen Korngrößenverteilung bzw. Dickentoleranz, die genau der einzustellenden Höhendifferenz entspricht, können unterschiedliche Höhen sehr präzise eingestellt werden. Selbst wenn das Polymer durch Temperatureinwirkung degradieren sollte, so stellt es jedoch sicher, dass die Partikel, die die Distanzfiinktion übernehmen, immer noch den Höhenunterschied gewährleisten.FIG. 3 shows a variant of FIGS. 1 and 2, wherein here too a region a is provided with a thickening of the material, which in this embodiment is provided by a material thickening Double-sided coating 8,8 'defined material thickness is formed. The coating 8,8 'consists of a polymer, in particular a thermoplastic or a thermosetting material. By adding metallic, ceramic or mineral particles o of the fibers with a relatively narrow particle size distribution or thickness tolerance, which corresponds exactly to the height difference to be set, different heights can be set very precisely. Even if the polymer should degrade due to the effect of temperature, it nevertheless ensures that the particles which take over the distance fiction still ensure the height difference.
Das Polymer darf nur einen bestimmten Anteil an Partikeln oder Fasern beinhalten, der von der Partikelgröße abhängig ist (je größer die Partikel, desto höher sollte auch deren Anteil sein).The polymer may contain only a certain amount of particles or fibers, which depends on the particle size (the larger the particles, the higher their proportion should be).
In Analogie zu den Figuren 1 und 2 kann die Beschichtung 8,8' sowohl einseitig als auch beidseitig vorgesehen werden.In analogy to FIGS. 1 and 2, the coating 8, 8 'can be provided both on one side and on both sides.
Figur 4 zeigt eine Ausschnittsvergrößerung der Figur 3. Erkennbar ist die Lage 1 sowie die beidseitig aufgetragenen Beschichtungen 8,8'. Die jeweilige Beschichtung 8,8' kann durch ein Siebdruckverfahren erzeugt werden. Dadurch, dass die Partikel oder Fasern 9,9' dem einzustellenden Höhenunterschied entsprechen, muss lediglich gewährleistet werden, dass alle Partikel oder Fasern 9,9' in einer Ebene Hegen.FIG. 4 shows an enlarged detail of FIG. 3. The position 1 and the coatings 8, 8 'applied on both sides can be seen. The respective coating 8, 8 'can be produced by a screen printing process. The fact that the particles or fibers 9,9 'correspond to the height difference to be set only has to ensure that all the particles or fibers 9,9' are in one plane.
Nicht dargestellt, vom Schutzumfang jedoch mit umfasst ist, dass die jeweilige Lage in ein- oder beidseitig plattierter Form (z.B. Aluminium) vorgesehen sein kann, wobei die Materialverdickung, beispielsweise durch Prägen mindestens eines plattierten Bereichs (nur in der Plattierung) erzeugt wird.Not shown, but included in the scope of protection, that the respective layer can be provided in one- or double-sided clad form (for example aluminum), wherein the material thickening is produced, for example by embossing at least one clad area (only in the cladding).
Durch Einbringung von Materialverdickungen, entweder in der Lage oder einer plattierten Schicht, können gezielte Topographien erzeugt werden, und zwar sowohl in der Höhe als auch in der Breite. Figur 5 zeigt als Draufsicht eine als Flachdichtung ausgebildete Zylinderkopfdichtung. Gleiche Bauteile, wie bei den Figuren 1 bis 4 sind mit gleichen Bezugszeichen versehen. In diesem Beispiel soll die Zylinderkopfdichtung durch eine einzelne metallische Lage 1 gebildet sein, die mehrere als BrennraumdurchgangsörTnungen fungierende Durchgangsöffhungen 2 beinhaltet. Erkennbar sind die Profilkörper 3, die fest mit der Lage 1 verbunden sind. Es gelten die gleichen Bedingungen, wie sie zu den Figuren 1 bis 4 angegeben wurden. Sämtliche schraffierte Bereiche der Lage 1 sind durch Materialverdickungen 10 gebildet. Es ist erkennbar, dass nicht nur der unmittelbare Bereich um den jeweiligen Profilkörper 3 herum, sondern auch das sich bis in die Randbereiche 11 der Lage 1 erstreckende Hinterland in gezielter Weise mit den Materialverdickungen 10 versehen ist.By incorporating material thickening, either in-situ or as a clad layer, targeted topographies can be created, both in height and in width. FIG. 5 shows a top view of a cylinder head gasket designed as a flat gasket. The same components as in the figures 1 to 4 are provided with the same reference numerals. In this example, the cylinder head gasket is to be formed by a single metallic layer 1, which includes a plurality of Durchgangsöffhungen 2 acting as BrennraumdurchgangsörTnungen. Visible are the profile body 3, which are firmly connected to the layer 1. The same conditions apply as those given for FIGS. 1 to 4. All hatched areas of the layer 1 are formed by material thickening 10. It can be seen that not only the immediate area around the respective profile body 3 around, but also the up to the edge regions 11 of the layer 1 extending inland is provided in a targeted manner with the material thickening 10.
Figur 6 zeigt einen Schnitt gemäß Linie A-A der Figur 5. Erkennbar ist der bananenförmig ausgebildete Profilkörper 3 sowie der Bereich b der an dieser Stelle vorhandenen Materialverdickung 10, die in diesem Beispiel durch eine beidseitige Prägung gebildet ist. FIG. 6 shows a section according to line A-A of FIG. 5. Recognizable is the banana-shaped profile body 3 and the region b of the material thickening 10 present at this point, which in this example is formed by embossing on both sides.
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008029543A DE102008029543B4 (en) | 2007-12-21 | 2008-06-21 | gasket |
PCT/DE2009/000842 WO2009152815A1 (en) | 2008-06-21 | 2009-06-19 | Flat seal |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2329169A1 true EP2329169A1 (en) | 2011-06-08 |
Family
ID=41227135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09765451A Withdrawn EP2329169A1 (en) | 2008-06-21 | 2009-06-19 | Flat seal |
Country Status (5)
Country | Link |
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US (1) | US20110101626A1 (en) |
EP (1) | EP2329169A1 (en) |
JP (1) | JP2011525227A (en) |
CN (1) | CN101910689A (en) |
WO (1) | WO2009152815A1 (en) |
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- 2009-06-19 US US13/000,507 patent/US20110101626A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
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WO2009152815A1 (en) | 2009-12-23 |
JP2011525227A (en) | 2011-09-15 |
US20110101626A1 (en) | 2011-05-05 |
CN101910689A (en) | 2010-12-08 |
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