EP3186492B1 - Bucket tappet and method for producing same - Google Patents

Bucket tappet and method for producing same Download PDF

Info

Publication number
EP3186492B1
EP3186492B1 EP15744476.1A EP15744476A EP3186492B1 EP 3186492 B1 EP3186492 B1 EP 3186492B1 EP 15744476 A EP15744476 A EP 15744476A EP 3186492 B1 EP3186492 B1 EP 3186492B1
Authority
EP
European Patent Office
Prior art keywords
bucket
tappet
cam
contact face
combustion engine
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
EP15744476.1A
Other languages
German (de)
French (fr)
Other versions
EP3186492A1 (en
Inventor
Günter EISENHARDT
Manfred STRÄTZ
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3186492A1 publication Critical patent/EP3186492A1/en
Application granted granted Critical
Publication of EP3186492B1 publication Critical patent/EP3186492B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/16—Silencing impact; Reducing wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the invention relates to a tappet for an internal combustion engine, comprising a tappet housing with a hollow cylindrical cup shirt and the cup shirt unilaterally closing cup bottom on which the cup shirt is formed by chipless cold forming a steel blank, the outside of the cup bottom as a contact surface for a tappet hubbeaufierden the Internal combustion engine is used, and in which the outside of the cup top as a contact surface for a cup tappet in the stroke direction overlapping guide bore of the internal combustion engine.
  • Such tappets are used in the gas exchange valve drive of an internal combustion engine to transmit the cam lobe of a cam on a camshaft in an opening movement of the associated gas exchange valve.
  • the bucket tappet as a tappet for the cam of a fuel injection pump to transfer the collection of the pump cam to the piston of the injection pump.
  • it is a mechanically heavily loaded component, which on the one hand has to withstand the Hertzian stresses occurring in the cam contact with sufficient wear and which, on the other hand, has to be supported sufficiently wear and noise in a guide bore.
  • tappet housings made of steel, which are subsequently heat-treated to increase the hardness of all contact surfaces.
  • the machined end contour of the tappet housing is typically carried out in a grinding process in which the outside of the cup, ie the guide contact surface of the tappet, to the required for the longitudinal guidance of the tappet and the cup outside of the cup base, that is, the cam contact surface on the Cam contact required surface geometry with respective reduction of the surface roughness finish.
  • the present invention has the object, a bucket tappet of the type mentioned and a method for its production in each case with regard to reduced manufacturing costs.
  • the invention therefore initially relates to a bucket tappet for an internal combustion engine, comprising a tappet housing with a hollow cylindrical cup shirt and a cup skirt on one side closing cup base on which the cup shirt is formed by chipless cold forming a steel blank, the outside of the cup bottom hubbeaufurgiden as a contact surface for a tappet Cam of the internal combustion engine is used, and in which the outside of the cup top as a contact surface for a cup tappet in the stroke direction overlying guide bore of the internal combustion engine.
  • the unprocessed and uncoated cam contact surface of the cup base is machined by means of a brushing tool in this tappet.
  • the cam contact surface of the cup bottom is not finely worked by a polishing and / or lapping process, but the entire mechanical processing of the cam contact surface of the cup bottom is effected exclusively by brushing, so that the cam contact surface has an isotropic structure, and so mechanically machined tappets whose cup shirt is cut to size, can be used already in this form.
  • the bucket tappet may be heat treated after the cold forming for the purpose of increasing hardness, wherein the brushing of the cam contact surface of the cup bottom may take place before or after the heat treatment.
  • cam contact surface of the cup bottom has a coating, which is preferably formed as a DLC coating.
  • the brushing takes place in such a way that an isotropic surface structure is formed.
  • the method may additionally comprise the following step: aa) heat treatment of the bucket tappet for hardness increase before brushing the cam contact surface.
  • the method can have the additional step: d) After brushing, apply a coating to the cam contact surface, such as a DLC coating.
  • the cam contact surface of the cup bottom has a targeted and significant improvement in the surface roughness, without changing the surface topography generated when rolling the sheets for the steel plate strongly.
  • This special topography has a positive effect on the reduction of the friction torque between the cam and the plunger. Since that according to the DE 10 2011 076 410 A1 provided polishing and / or lapping the cam contact surface before applying the DLC coating is omitted and replaced by the brushing of the unprocessed and uncoated cam contact surface of the cup bottom, while after application of the DLC coating no further brushing is performed, the processing time of the tappet is shortened and simplifies the manufacturing process, resulting in reduced manufacturing costs.
  • the invention is particularly advantageous in relation to the production of a tappet for an internal combustion engine, but also rocker arms or rocker arms in piston machines, but also gear or roller bearing components, in particular bearing rings and rolling elements, such as balls, needles, cylindrical rollers or tapered rollers, according to the invention form and produce.
  • a steel is preferably used as the base material of the machine element to be coated.
  • Fig. 1 shows a designed as a bucket tappet gas exchange valve drive an internal combustion engine with mechanical valve clearance compensation.
  • the mechanical bucket tappet 1 consists exclusively of a cup-shaped tappet housing 2, which is made in one piece by chipless cold forming of a steel blank and here by deep drawing a sheet metal blank.
  • the plunger housing 2 is composed of a hollow cylindrical cup shirt 3 and an axially end-side cup base 4, on which the cup shirt 3 is formed and which closes the cup 3 on one side.
  • the axial outer side of the cup base 4 serves as a contact surface 5 for a cam 6, the elevation of which is transmitted from the tappet 1 in an opening movement of the spring-loaded in the closing direction gas exchange valve 7.
  • the radial outer side of the cup 3 serves as a contact surface 8 for a cup-tappet 1 in the stroke direction supporting hollow cylindrical guide bore 9 of the internal combustion engine.
  • the axial inside of the cup base 4 is provided with an elevation 10 extending in the axial direction of the gas exchange valve 7, which contacts the shaft of the gas exchange valve 7 at the end.
  • the valve clearance adjustment is carried out by sorting a tappet 1 with an appropriate for the setpoint valve clearance axial height 11 of the survey 10, wherein the tappet 1 is selected from a group sorting with different elevations 10 and then mounted.
  • a finely machined, in particular ground end surface 12 of the elevation 10 can be provided.
  • the deep-drawn and subsequently heat-hardened ram housing 2 is at the radial outer side only on the outside of the cup 3, that is machined in the region of the contact surface 8, machined and ground here. This ensures that the required dimensional and shape tolerances of the cup shirt 3 in the guide bore 9 are in their desired range.
  • the axial outer side of the cup base 4, that is, the cam contact surface 5, however, is only brushed and has an isotropic surface structure, which is only slightly different from that in the deep-drawing process and differs in the heat treatment of the plunger housing 2 generated surface structure and surface geometry.
  • Fig. 2 shows the processing of the tappet 1 by brushing.
  • the roller 15 has particle-filled filaments 14.
  • the rotating roller brush 13 is moved in the direction of the double arrow B back and forth.
  • the tappet 1 is rotated in accordance with the arrow D in rotation about its longitudinal axis.
  • the tappet 1 can also be moved back and forth in the direction of the double arrow E in order to obtain the desired isotropic structure of the cam contact surface 5.
  • a DLC coating 5a is applied to the cam contact surface 5 in this embodiment.
  • Such coatings are in the DE 10 2011 076 410 A1 disclosed, so that their content is hereby made the subject of the present disclosure.
  • roller brush 15 instead of a roller brush 15, it is also possible to use a well-known cup brush whose axis of rotation is perpendicular to the cup tappet 1 and whose end face facing the cam contact surface has the particle-filled filaments 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Heat Treatment Of Articles (AREA)

Description

Die Erfindung betrifft einen Tassenstößel für eine Brennkraftmaschine, aufweisend ein Stößelgehäuse mit einem hohlzylindrischen Tassenhemd sowie einem das Tassenhemd einseitig verschließenden Tassenboden, an dem das Tassenhemd mittels spanloser Kaltumformung eines Stahlrohlings angeformt ist, wobei die Außenseite des Tassenbodens als Kontaktfläche für einen den Tassenstößel hubbeaufschlagenden Nocken der Brennkraftmaschine dient, und bei dem die Außenseite des Tassenhemds als Kontaktfläche für eine den Tassenstößel in Hubrichtung lagernde Führungsbohrung der Brennkraftmaschine.The invention relates to a tappet for an internal combustion engine, comprising a tappet housing with a hollow cylindrical cup shirt and the cup shirt unilaterally closing cup bottom on which the cup shirt is formed by chipless cold forming a steel blank, the outside of the cup bottom as a contact surface for a tappet hubbeaufschlagenden the Internal combustion engine is used, and in which the outside of the cup top as a contact surface for a cup tappet in the stroke direction overlapping guide bore of the internal combustion engine.

Derartige Tassenstößel werden im Gaswechselventiltrieb einer Brennkraftmaschine verwendet, um die Nockenerhebung eines Nockens an einer Nockenwelle in eine Öffnungsbewegung des zugehörigen Gaswechselventils zu übertragen. Daneben besteht die Möglichkeit, den Tassenstößel als Abgriffselement für den Nocken einer Kraftstoffeinspritzpumpe zu verwenden, um die Erhebung des Pumpennockens auf den Kolben der Einspritzpumpe zu übertragen. In jedem Fall handelt es sich um ein mechanisch stark belastetes Bauteil, das zum einen die im Nockenkontakt auftretenden Hertz'schen Pressungen hinreichend verschleißarm ertragen muss, und das zum anderen hinreichend verschleiß- sowie geräuscharm in einer Führungsbohrung zu lagern ist.Such tappets are used in the gas exchange valve drive of an internal combustion engine to transmit the cam lobe of a cam on a camshaft in an opening movement of the associated gas exchange valve. In addition, it is possible to use the bucket tappet as a tappet for the cam of a fuel injection pump to transfer the collection of the pump cam to the piston of the injection pump. In any case, it is a mechanically heavily loaded component, which on the one hand has to withstand the Hertzian stresses occurring in the cam contact with sufficient wear and which, on the other hand, has to be supported sufficiently wear and noise in a guide bore.

Bereits seit längerer Zeit weisen großseriengerechte Tassenstößel aus Kostengründen spanlos kalt umgeformte Stößelgehäuse aus Stahl auf, die zur Härtesteigerung aller Kontaktflächen anschließend wärmebehandelt werden. Die spanend erzeugte Endkontur des Stößelgehäuses erfolgt typischerweise in einem Schleifprozess, in dem die Außenseite des Tassenhemds, das heißt die Führungskontaktfläche des Tassenstößels, auf das für die Längsführung des Tassenstößels erforderliche Passmaß sowie die Außenseite des Tassenbodens, das heißt die Nockenkontaktfläche, auf die für den Nockenkontakt erforderliche Oberflächengeometrie unter jeweiliger Verringerung der Oberflächenrauhigkeit fertig bearbeitet werden.For a long time, large-series-compatible tappets for cost reasons have cold-formed ram housings made of steel, which are subsequently heat-treated to increase the hardness of all contact surfaces. The machined end contour of the tappet housing is typically carried out in a grinding process in which the outside of the cup, ie the guide contact surface of the tappet, to the required for the longitudinal guidance of the tappet and the cup outside of the cup base, that is, the cam contact surface on the Cam contact required surface geometry with respective reduction of the surface roughness finish.

Aus der DE 10 2011 076 410 A1 sind ein Tassenstößel und ein Verfahren zu dessen Herstellung bekannt. Das Stößelgehäuse aus Metall wird durch spanloses Kaltumformen hergestellt, anschließend wärmebehandelt, und abschließend wird die Außenseite des Tassenhemds auf das erforderliche Maß geschliffen. Die für den Nockenkontakt erforderliche Oberflächengeometrie wird durch Polier- und/oder Läppverfahren erreicht. Danach wird eine DLC-Beschichtung aufgebracht, die anschließend durch Bürsten mechanisch nachbearbeitet wird. Der Bürstvorgang ist so gestaltet, dass jeder Abschnitt der zu bearbeitenden Oberfläche sowohl hinsichtlich der Bearbeitungsintensität als auch der Relativbewegung zwischen dem Tassenstößel und dem Bürstwerkzeug gleichmäßig, insbesondere ohne Bevorzugung irgendeiner bestimmten Richtung, bearbeitet wird, so dass eine isotrope, verschleiß- und reibungsoptimierte Oberflächenstruktur entsteht.From the DE 10 2011 076 410 A1 are known a bucket tappets and a method for its preparation. The plunger housing made of metal is produced by chipless cold forming, then heat treated, and finally the outside of the cup is ground to the required degree. The required for the cam contact surface geometry is achieved by polishing and / or lapping. Thereafter, a DLC coating is applied, which is then mechanically reworked by brushing. The brushing operation is designed so that each section of the surface to be machined is processed uniformly, particularly with respect to the processing intensity as well as the relative movement between the cup tappet and the brushing tool, in particular without favoring any particular direction, thus providing an isotropic, wear and friction optimized surface structure ,

Vor diesem Hintergrund liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Tassenstößel der eingangs genannten Art und ein Verfahren zu dessen Herstellung jeweils im Hinblick auf reduzierte Herstellkosten fortzubilden.Against this background, the present invention has the object, a bucket tappet of the type mentioned and a method for its production in each case with regard to reduced manufacturing costs.

Die Lösung dieser Aufgabe wird durch einen Tassenstößel sowie durch ein Verfahren zur Herstellung desselben gemäß den Merkmalen der unabhängigen Ansprüche gelöst. Vorteilhafte Weiterbildungen sind in den jeweils zugeordneten Unteransprüchen definiert.The solution to this problem is solved by a tappet and by a method for producing the same according to the features of the independent claims. Advantageous developments are defined in the respective associated subclaims.

Die Erfindung betrifft demnach zunächst einen Tassenstößel für eine Brennkraftmaschine, aufweisend ein Stößelgehäuse mit einem hohlzylindrischen Tassenhemd sowie einem das Tassenhemd einseitig verschließenden Tassenboden, an dem das Tassenhemd mittels spanloser Kaltumformung eines Stahlrohlings angeformt ist, wobei die Außenseite des Tassenbodens als Kontaktfläche für einen den Tassenstößel hubbeaufschlagenden Nocken der Brennkraftmaschine dient, und bei dem die Außenseite des Tassenhemds als Kontaktfläche für eine den Tassenstößel in Hubrichtung lagernde Führungsbohrung der Brennkraftmaschine. Zur Lösung der vorrichtungsbezogenen Aufgabe ist bei diesem Tassenstößel die unbearbeitete und unbeschichtete Nockenkontaktfläche des Tassenbodens mittels eines Bürstwerkzeugs spanend bearbeitet.The invention therefore initially relates to a bucket tappet for an internal combustion engine, comprising a tappet housing with a hollow cylindrical cup shirt and a cup skirt on one side closing cup base on which the cup shirt is formed by chipless cold forming a steel blank, the outside of the cup bottom hubbeaufschlagenden as a contact surface for a tappet Cam of the internal combustion engine is used, and in which the outside of the cup top as a contact surface for a cup tappet in the stroke direction overlying guide bore of the internal combustion engine. To solve the device-related task, the unprocessed and uncoated cam contact surface of the cup base is machined by means of a brushing tool in this tappet.

Im Gegensatz zum vorerwähnten Stand der Technik wird die Nockenkontaktfläche des Tassenbodens nicht durch ein Polier- und/oder Läppverfahren feinstbearbeitet, sondern die gesamte mechanische Bearbeitung der Nockenkontaktfläche des Tassenbodens erfolgt ausschließlich durch Bürsten, so dass die Nockenkontaktfläche eine isotrope Struktur aufweist, und der so mechanisch bearbeitete Tassenstößel, dessen Tassenhemd auf Maß geschliffen ist, lässt sich bereits in dieser Form verwenden.In contrast to the aforementioned prior art, the cam contact surface of the cup bottom is not finely worked by a polishing and / or lapping process, but the entire mechanical processing of the cam contact surface of the cup bottom is effected exclusively by brushing, so that the cam contact surface has an isotropic structure, and so mechanically machined tappets whose cup shirt is cut to size, can be used already in this form.

Gegebenenfalls kann der Tassenstößel nach der Kaltumformung zwecks Härtesteigerung wärmebehandelt sein, wobei das Bürsten der Nockenkontaktfläche des Tassenbodens vor oder nach der Wärmebehandlung erfolgen kann.Optionally, the bucket tappet may be heat treated after the cold forming for the purpose of increasing hardness, wherein the brushing of the cam contact surface of the cup bottom may take place before or after the heat treatment.

Eine weitere Maßnahme zur Verschleißminderung kann darin bestehen, dass die Nockenkontaktfläche des Tassenbodens eine Beschichtung aufweist, die vorzugsweise als DLC-Beschichtung ausgebildet ist.Another measure for reducing wear may be that the cam contact surface of the cup bottom has a coating, which is preferably formed as a DLC coating.

Die eingangs erwähnte Aufgabe wird des Weiteren durch ein Verfahren zur Herstellung eines Tassenstößels für eine Brennkraftmaschine der eingangs erwähnten Art gelöst Demnach betrifft die Erfindung auch ein Verfahren zum Herstellen eines Tassenstößels für eine Brennkraftmaschine, welche einen Tassenstößel, ein Stößelgehäuse mit einem hohlzylindrischen Tassenhemd und einem das Tassenhemd einseitig verschließenden Tassenboden aufweist, an dem das Tassenhemd mittels spanloser Kaltumformung eines Stahlrohlings angeformt ist, wobei die Außenseite des Tassenbodens als Kontaktfläche für einen den Tassenstößel hubbeaufschlagenden Nocken der Brennkraftmaschine dient, und bei dem die Außenseite des Tassenhemds als Kontaktfläche für eine den Tassenstößel in Hubrichtung lagernde Führungsbohrung der Brennkraftmaschine dient, wobei das Verfahren durch die folgenden Schritte aufweist:

  1. a) Tiefziehen des Stößelgehäuses aus einer Blechplatine,
  2. b) Bürsten der unbearbeiteten und unbeschichteten Nockenkontaktfläche.
The above-mentioned object is further achieved by a method for producing a bucket tappet for an internal combustion engine of the type mentioned. Accordingly, the invention also relates to a method for producing a bucket tappet for an internal combustion engine, which comprises a bucket tappet, a tappet housing with a hollow cylindrical cup shirt and a Cup shirt unilaterally closing cup bottom on which the cup shirt is formed by chipless cold forming a steel blank, the outside of the cup bottom serves as a contact surface for a tappet hubbeaufschlagenden cam of the internal combustion engine, and in which the outside of the cup shirt as a contact surface for a tappet in the stroke direction stocking guide bore of the internal combustion engine is used, the method comprising the following steps:
  1. a) deep drawing of the plunger housing from a sheet metal blank,
  2. b) brushing the unprocessed and uncoated cam contact surface.

Das Bürsten erfolgt dabei in der Weise, dass eine isotrope Oberflächenstruktur entsteht.The brushing takes place in such a way that an isotropic surface structure is formed.

Das Verfahren kann zusätzlich den folgenden Schritt aufweisen:
aa) Wärmebehandlung des Tassenstößels zwecks Härtesteigerung vor dem Bürsten der Nockenkontaktfläche.The method may additionally comprise the following step:
aa) heat treatment of the bucket tappet for hardness increase before brushing the cam contact surface.

Zur weiteren Verschleißminderung kann das Verfahren den zusätzlichen Schritt aufweisen:
d) Nach dem Bürsten Aufbringen einer Beschichtung auf die Nockenkontaktfläche, beispielsweise einer DLC-Beschichtung.For further reduction of wear, the method can have the additional step:
d) After brushing, apply a coating to the cam contact surface, such as a DLC coating.

Es ergibt sich durch Nutzung des geschilderten Verfahrens, dass die Nockenkontaktfläche des Tassenbodens eine gezielte und signifikante Verbesserung der Oberflächenrauhigkeit aufweist, ohne die beim Walzen der Bleche für die Stahlplatine erzeugte Oberflächentopographie stark zu verändern. Diese spezielle Topographie wirkt sich positiv auf die Reduzierung des Reibmoments zwischen dem Nocken und dem Stößel aus. Da das gemäß der DE 10 2011 076 410 A1 vorgesehene Polieren und/oder Läppen der Nockenkontaktfläche vor dem Aufbringen der DLC-Beschichtung entfällt und durch das Bürsten der unbearbeiteten sowie unbeschichteten Nockenkontaktfläche des Tassenbodens ersetzt wird, während nach dem Aufbringen der DLC-Beschichtung kein weiteres Bürsten durchgeführt wird, ist die Bearbeitungszeit des Tassenstößels verkürzt und der Herstellprozess vereinfacht, was zu verminderten Herstellkosten führt.It results by utilizing the described method that the cam contact surface of the cup bottom has a targeted and significant improvement in the surface roughness, without changing the surface topography generated when rolling the sheets for the steel plate strongly. This special topography has a positive effect on the reduction of the friction torque between the cam and the plunger. Since that according to the DE 10 2011 076 410 A1 provided polishing and / or lapping the cam contact surface before applying the DLC coating is omitted and replaced by the brushing of the unprocessed and uncoated cam contact surface of the cup bottom, while after application of the DLC coating no further brushing is performed, the processing time of the tappet is shortened and simplifies the manufacturing process, resulting in reduced manufacturing costs.

Die Erfindung ist zwar besonders vorteilhaft in Bezug zur Herstellung eines Tassenstößels für eine Brennkraftmaschine, jedoch lassen sich auch Schlepphebel oder Kipphebel in Kolbenmaschinen, aber auch Zahnräder- oder Wälzlagerkomponenten, insbesondere Lagerringe und Wälzkörper, beispielsweise Kugeln, Nadeln, Zylinderrollen oder Kegelrollen, erfindungsgemäß ausbilden und herstellen. Als Grundwerkstoff des zu beschichtenden Maschinenelements wird vorzugsweise ein Stahl verwendet.Although the invention is particularly advantageous in relation to the production of a tappet for an internal combustion engine, but also rocker arms or rocker arms in piston machines, but also gear or roller bearing components, in particular bearing rings and rolling elements, such as balls, needles, cylindrical rollers or tapered rollers, according to the invention form and produce. As the base material of the machine element to be coated, a steel is preferably used.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels weiter erläutert. In der Zeichnung zeigt

  • Fig. 1 einen Gaswechselventiltrieb mit einem mechanischen Tassenstößel im Längsschnitt, und
  • Fig. 2 eine Darstellung des Bürstvorgangs.
The invention will be explained below with reference to an embodiment shown in the drawing. In the drawing shows
  • Fig. 1 a gas exchange valve drive with a mechanical bucket tappers in longitudinal section, and
  • Fig. 2 a representation of the brushing process.

Fig. 1 zeigt einen als Tassenstößeltrieb ausgebildeten Gaswechselventiltrieb einer Brennkraftmaschine mit mechanischem Ventilspielausgleich. Der mechanische Tassenstößel 1 besteht ausschließlich aus einem tassenförmigen Stößelgehäuse 2, das mittels spanloser Kaltumformung eines Stahlrohlings und hier mittels Tiefziehen einer Blechplatine einstückig hergestellt ist. Das Stößelgehäuse 2 setzt sich aus einem hohlzylindrischen Tassenhemd 3 und einem axial endseitigen Tassenboden 4 zusammen, an dem das Tassenhemd 3 angeformt ist und welcher das Tassenhemd 3 einseitig verschließt. Die axiale Außenseite des Tassenbodens 4 dient als Kontaktfläche 5 für einen Nocken 6, dessen Erhebung vom Tassenstößel 1 in eine Öffnungsbewegung des in Schließrichtung federkraftbeaufschlagten Gaswechselventils 7 übertragen wird. Die radiale Außenseite des Tassenhemds 3 dient als Kontaktfläche 8 für eine den Tassenstößel 1 in Hubrichtung lagernde hohlzylindrische Führungsbohrung 9 der Brennkraftmaschine. Fig. 1 shows a designed as a bucket tappet gas exchange valve drive an internal combustion engine with mechanical valve clearance compensation. The mechanical bucket tappet 1 consists exclusively of a cup-shaped tappet housing 2, which is made in one piece by chipless cold forming of a steel blank and here by deep drawing a sheet metal blank. The plunger housing 2 is composed of a hollow cylindrical cup shirt 3 and an axially end-side cup base 4, on which the cup shirt 3 is formed and which closes the cup 3 on one side. The axial outer side of the cup base 4 serves as a contact surface 5 for a cam 6, the elevation of which is transmitted from the tappet 1 in an opening movement of the spring-loaded in the closing direction gas exchange valve 7. The radial outer side of the cup 3 serves as a contact surface 8 for a cup-tappet 1 in the stroke direction supporting hollow cylindrical guide bore 9 of the internal combustion engine.

Die axiale Innenseite des Tassenbodens 4 ist mit einer sich in Axialrichtung des Gaswechselventils 7 erstreckenden Erhebung 10 versehen, die den Schaft des Gaswechselventils 7 stirnseitig kontaktiert. Die Ventilspieleinstellung erfolgt durch Zusortierung eines Tassenstößels 1 mit einer für das einzustellende Sollventilspiel geeigneten axiale Höhe 11 der Erhebung 10, wobei der Tassenstößel 1 aus einer Gruppensortierung mit verschieden hohen Erhebungen 10 ausgewählt und dann montiert wird. Je nach Anwendungsfall kann eine spanend fein bearbeitete, insbesondere geschliffene Stirnfläche 12 der Erhebung 10 vorgesehen sein.The axial inside of the cup base 4 is provided with an elevation 10 extending in the axial direction of the gas exchange valve 7, which contacts the shaft of the gas exchange valve 7 at the end. The valve clearance adjustment is carried out by sorting a tappet 1 with an appropriate for the setpoint valve clearance axial height 11 of the survey 10, wherein the tappet 1 is selected from a group sorting with different elevations 10 and then mounted. Depending on the application, a finely machined, in particular ground end surface 12 of the elevation 10 can be provided.

Das tief gezogene und zwecks Härtesteigerung anschließend wärmebehandelte Stößelgehäuse 2 ist an dessen radiale Außenseite lediglich an der Außenseite des Tassenhemds 3, das heißt im Bereich der Kontaktfläche 8, spanend bearbeitet und hier geschliffen. Dies gewährleistet, dass die erforderlichen Maß- und Formtoleranzen des Tassenhemds 3 in der Führungsbohrung 9 in deren Sollbereich liegen. Die axiale Außenseite des Tassenbodens 4, das heißt die Nockenkontaktfläche 5, ist hingegen nur gebürstet und weist eine isotrope Oberflächenstruktur auf, die sich nur geringfügig von der im Tiefziehprozess und bei der Wärmebehandlung des Stößelgehäuses 2 erzeugten Oberflächenstruktur und Oberflächengeometrie unterscheidet.The deep-drawn and subsequently heat-hardened ram housing 2 is at the radial outer side only on the outside of the cup 3, that is machined in the region of the contact surface 8, machined and ground here. This ensures that the required dimensional and shape tolerances of the cup shirt 3 in the guide bore 9 are in their desired range. The axial outer side of the cup base 4, that is, the cam contact surface 5, however, is only brushed and has an isotropic surface structure, which is only slightly different from that in the deep-drawing process and differs in the heat treatment of the plunger housing 2 generated surface structure and surface geometry.

Fig. 2 zeigt die Bearbeitung des Tassenstößels 1 durch Bürsten. Als Werkzeug wird eine in Richtung des Pfeils A rotierende Walzenbürste 13 genutzt, deren Walze 15 partikelbesetzte Filamente 14 aufweist. Während des Bürstens wird die rotierende Walzenbürste 13 in Richtung des Doppelpfeils B hin und her bewegt. Gleichzeitig wird der Tassenstößel 1 entsprechend dem Pfeil D in Drehung um seine Längsachse versetzt. Zusätzlich kann der Tassenstößel 1 auch noch in Richtung des Doppelpfeils E hin und her bewegt werden, um die gewünschte isotrope Struktur der Nockenkontaktfläche 5 zu erhalten. Nach dem Bürsten wird auf die Nockenkontaktfläche 5 in diesem Ausführungsbeispiel eine DLC-Beschichtung 5a aufgebracht. Derartige Beschichtungen sind in der DE 10 2011 076 410 A1 offenbart, so dass deren diesbezüglicher Inhalt hiermit zum Gegenstand der vorliegenden Offenbarung gemacht ist. Fig. 2 shows the processing of the tappet 1 by brushing. As a tool rotating in the direction of arrow A roller brush 13 is used, the roller 15 has particle-filled filaments 14. During brushing, the rotating roller brush 13 is moved in the direction of the double arrow B back and forth. At the same time the tappet 1 is rotated in accordance with the arrow D in rotation about its longitudinal axis. In addition, the tappet 1 can also be moved back and forth in the direction of the double arrow E in order to obtain the desired isotropic structure of the cam contact surface 5. After brushing, a DLC coating 5a is applied to the cam contact surface 5 in this embodiment. Such coatings are in the DE 10 2011 076 410 A1 disclosed, so that their content is hereby made the subject of the present disclosure.

Statt einer Walzenbürste 15 lässt sich auch eine allgemein bekannte Topfbürste verwenden, deren Rotationsachse senkrecht zum Tassenstößel 1 verläuft und deren der Nockenkontaktfläche zugewandte Stirnfläche die partikelbesetzten Filamente 14 aufweist.Instead of a roller brush 15, it is also possible to use a well-known cup brush whose axis of rotation is perpendicular to the cup tappet 1 and whose end face facing the cam contact surface has the particle-filled filaments 14.

Alle in der vorstehenden Figurenbeschreibung, in den Ansprüchen und in der Beschreibungseinleitung genannten Merkmale sind sowohl einzeln als auch in beliebiger Kombination miteinander einsetzbar. Die Erfindung ist somit nicht auf die beschriebenen und beanspruchten Merkmalskombinationen beschränkt, vielmehr sind alle Merkmalskombinationen als offenbart zu betrachten.All the features mentioned in the preceding description of the figures, in the claims and in the introduction to the description can be used both individually and in any combination with one another. The invention is thus not limited to the described and claimed feature combinations, but all feature combinations are to be regarded as disclosed.

BezugzeichenlisteLIST OF REFERENCE NUMBERS

11
Tassenstößeltappets
22
Stößelgehäusetappet housing
33
Tassenhemdcup shirt
44
Tassenbodencup base
55
NockenkontaktflächeCam contact surface
5a5a
DLC-BeschichtungDLC coating
66
Nockencam
77
GaswechselventilGas exchange valve
88th
Kontaktflächecontact area
99
Führungsbohrungguide bore
1010
Erhebung am TassenbodenElevation on the bottom of the cup
1111
Höhe der ErhebungHeight of the survey
1212
Stirnfläche der ErhebungFace of the survey
1313
Walzenbürsteroller brush
1414
Partikelbesetztes FilamentParticle-occupied filament
1515
Walzeroller
AA
Pfeil, Rotation der WalzenbürsteArrow, rotation of the roller brush
BB
Pfeil, translatorische Bewegung der WalzenbürsteArrow, translational movement of the roller brush
DD
Pfeil, translatorische Bewegung des TassenstößelsArrow, translatory movement of the bucket tappet
Ee
Pfeil, Rotation des TassenstößelsArrow, rotation of the bucket tappet

Claims (10)

  1. Bucket tappet (1) for an internal combustion engine, having a tappet housing (2) with a hollow-cylindrical bucket shroud (3) and a bucket bottom (4) which closes the bucket shroud (3) on one side and on which the bucket shroud (3) is formed by way of chipless cold working of a steel blank, the outer side of the bucket bottom (4) serving as a contact face (5) for a cam (6) of the internal combustion engine, which cam (6) loads the bucket tappet (1) with a lifting movement, and in which bucket tappet (1) the outer side of the bucket shroud (3) serves as a contact face (8) for a guide bore (9) of the internal combustion engine, which guide bore (9) mounts the bucket tappet (1) in the lifting direction, characterized in that the un-machined and uncoated cam contact face (5) of the bucket bottom (4) is treated by means of a brushing tool (13) with the removal of material.
  2. Bucket tappet according to Claim 1, characterized in that the cam contact face (5) is treated in such a way that it has an isotropic structure.
  3. Bucket tappet according to Claim 1 or 2, characterized in that the bucket tappet (1) is heat-treated for the purpose of increasing the hardness after the cold working.
  4. Bucket tappet according to one of Claims 1 to 3, characterized in that the brushed cam contact face (5) of the bucket bottom (4) has a coating (5a).
  5. Bucket tappet according to Claim 4, characterized in that the coating (5a) is configured as a DLC coating.
  6. Method for producing a bucket tappet (1) for an internal combustion engine which has a bucket tappet (1), a tappet housing (2) with a hollow-cylindrical bucket shroud (3) and a bucket bottom (4) which closes the bucket shroud (3) on one side and on which the bucket shroud (3) is formed by way of chipless cold working of a steel blank, the outer side of the bucket bottom (4) serving as a contact face (5) for a cam (6) of the internal combustion engine, which cam (6) loads the bucket tappet (1) with a lifting movement, and in which bucket tappet (1) the outer side of the bucket shroud (3) serves as a contact face (8) for a guide bore (9) of the internal combustion engine, which guide bore (9) mounts the bucket tappet (1) in the lifting direction, characterized by the steps:
    a) deep drawing of the tappet housing (2) from a sheet metal plate;
    b) brushing of the un-machined and uncoated cam contact face (5).
  7. Method according to Claim 6, characterized in that the brushing takes place in such a way that an isotropic structure is produced.
  8. Method according to Claim 6 or 7 having the additional step:
    aa) heat treatment of the bucket tappet (1) for the purpose of increasing the hardness before the brushing of the cam contact face.
  9. Method according to Claim 7 or 8 having the additional step:
    d) application of a coating (5a) to the cam contact face (5) after the brushing.
  10. Method according to Claim 9, characterized by the application of a DLC coating (5a) to the cam contact face (5).
EP15744476.1A 2014-08-26 2015-06-16 Bucket tappet and method for producing same Not-in-force EP3186492B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014216961.5A DE102014216961A1 (en) 2014-08-26 2014-08-26 Cup tappets and method for its production
PCT/DE2015/200370 WO2016029910A1 (en) 2014-08-26 2015-06-16 Bucket tappet and method for producing same

Publications (2)

Publication Number Publication Date
EP3186492A1 EP3186492A1 (en) 2017-07-05
EP3186492B1 true EP3186492B1 (en) 2018-08-15

Family

ID=53761912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15744476.1A Not-in-force EP3186492B1 (en) 2014-08-26 2015-06-16 Bucket tappet and method for producing same

Country Status (7)

Country Link
US (1) US10066516B2 (en)
EP (1) EP3186492B1 (en)
JP (1) JP2017526856A (en)
KR (1) KR20170043645A (en)
CN (1) CN106661968B (en)
DE (1) DE102014216961A1 (en)
WO (1) WO2016029910A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020100307A1 (en) * 2020-01-09 2021-07-15 Schaeffler Technologies AG & Co. KG Bridge for a valve train of a heavy-duty internal combustion engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19815790B4 (en) * 1997-05-26 2010-05-12 Schaeffler Kg Mechanical valve lifter
DE10114073A1 (en) * 2001-03-22 2002-09-26 Ina Schaeffler Kg Valve tappet for IC engines ha base with aperture in outside for lubricant, for permanent lubricant film between control cam and tappet base
DE10123966A1 (en) * 2001-05-17 2002-11-21 Ina Schaeffler Kg Bucket tappet for valve drive has jacket with appreciably lower height than bucket tappet as whole
DE10360467B4 (en) * 2003-12-22 2011-11-10 Trw Deutschland Gmbh Mechanical valve lifter
EP1987921A1 (en) * 2006-02-20 2008-11-05 Xebec Technology Co., Ltd. Brush-like grindstone
DE102006036839A1 (en) * 2006-08-07 2008-02-14 Rolls-Royce Deutschland Ltd & Co Kg Method for deburring power-unit edges e.g. for gas-turbine, involves deburring brush operated at prescribed cutting speed
DE102010032254A1 (en) * 2010-07-26 2012-01-26 Schaeffler Technologies Gmbh & Co. Kg Cup tappets and method for its production
DE102011076410A1 (en) 2011-05-24 2012-11-29 Schaeffler Technologies AG & Co. KG machine element
DE102011120591A1 (en) * 2011-12-08 2013-06-13 Federal-Mogul Burscheid Gmbh Method for processing surface treated trapezoidal shaped edge of piston ring, involves performing brushing operation on surface treated trapezoidal shaped edges of piston rings, which are passed individually or in continuous-flow process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
KR20170043645A (en) 2017-04-21
US10066516B2 (en) 2018-09-04
WO2016029910A1 (en) 2016-03-03
CN106661968A (en) 2017-05-10
EP3186492A1 (en) 2017-07-05
JP2017526856A (en) 2017-09-14
US20170081985A1 (en) 2017-03-23
CN106661968B (en) 2019-06-21
DE102014216961A1 (en) 2016-03-03

Similar Documents

Publication Publication Date Title
DE102009056306A1 (en) roller plunger
WO1999002852A1 (en) Piston pump for high pressure fuel supply
DE102012017525A1 (en) Production method of one-piece solid metallic material gear used in vehicle transmission, involves providing solid metallic material blank and forming outer teeth and inner contour of concentric bore with final geometry, from the blank
DE10309190A1 (en) thrust bearing
DE102005024908B4 (en) Method for producing a bevel gear
DE102014218234B4 (en) Oldham coupling and method of making an Oldham coupling
WO2012013376A1 (en) Cup tappet and method for producing same
EP3186492B1 (en) Bucket tappet and method for producing same
DE102017121425A1 (en) Connecting rod for a variable compression internal combustion engine
EP3250796B1 (en) Process of assembling a camshaft in a module unit
DE102019130286A1 (en) Sealing sleeve with combined axial bearing means for a pressure medium rotary feedthrough
DE102013223301A1 (en) Camshaft adjustment device
DE19743627C2 (en) Method for producing a constriction of the cylinder bore of a cylinder liner
EP3339602B1 (en) Connecting rod for a combustion engine with variable compression
WO2013139674A1 (en) Housing with a bore for an internal combustion engine
DE102014000809B3 (en) Method for producing a shaft-hub connection
DE102015201176A1 (en) Cam follower roller means
EP3586004B1 (en) Method for producing housings for roller tappets
DE102010035590B4 (en) Method and device for manufacturing a structural component
EP3514348B1 (en) Connecting rod for a combustion engine with variable compression
WO2018073014A1 (en) Bearing bush, in particular plain bearing bush
DE102016123557A1 (en) Method for producing cams, camshafts and camshaft modules and cams produced in this way
DE102012111347B4 (en) Method for processing a fluid pressure-loaded component of a pump and fluid-pressurized component
DE102016224596A1 (en) Method and device for producing a bearing arrangement
DE102016209973A1 (en) Valve train for an internal combustion engine

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170327

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180208

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: AT

Ref legal event code: REF

Ref document number: 1030012

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015005479

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180815

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181115

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181116

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181215

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181115

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015005479

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190616

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150616

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20210622

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1030012

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200616

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20210625

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200616

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210819

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180815

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502015005479

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220616

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220616

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230103

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523