EP3129614B1 - Adjustable camshaft - Google Patents
Adjustable camshaft Download PDFInfo
- Publication number
- EP3129614B1 EP3129614B1 EP15713510.4A EP15713510A EP3129614B1 EP 3129614 B1 EP3129614 B1 EP 3129614B1 EP 15713510 A EP15713510 A EP 15713510A EP 3129614 B1 EP3129614 B1 EP 3129614B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- outer shaft
- cam
- shaft
- adjustable camshaft
- 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.)
- Active
Links
- 238000005096 rolling process Methods 0.000 claims description 73
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- RDYMFSUJUZBWLH-UHFFFAOYSA-N endosulfan Chemical compound C12COS(=O)OCC2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl RDYMFSUJUZBWLH-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
-
- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0471—Assembled camshafts
- F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
Definitions
- the present invention relates to an adjustable camshaft for the valve train of an internal combustion engine with an outer shaft and with an extending through the outer shaft inner shaft, wherein on the outer shaft at least one cam member and rotatably connected to the inner shaft, wherein the cam member rotatable to form a bearing is absorbed on the outside of the outer shaft.
- the DE 10 2005 014 680 A1 shows an example of an adjustable camshaft for the valve train of an internal combustion engine with an outer shaft and with an extending through the outer shaft inner shaft, wherein arranged on the outer shaft cam elements and are rotationally fixedly connected to the inner shaft via a bolt. If the phase position of the inner shaft is changed relative to the phase position of the outer shaft, the cam elements on the outer shaft execute a rotational movement independently of a rotation of the camshaft, for example in a cylinder head or in a cylinder head cover. As a result, the adjustable cam elements are rotated against firmly arranged on the outer shaft further cam elements, so that the timing of, for example, intake valves and exhaust valves to each other can be changed.
- the cam elements have cam tracks in contact with tapping elements. If the camshaft rotates about its longitudinal axis, a periodic application of force to the cam elements is effected by the tapping elements. The dynamic application of force to the cam members results in a periodic cycling of the bearing formed by the rotatable engagement of the cam members on the outside of the outer shaft.
- cam elements are rotatably received on the outside of outer shafts via slide bearings. If the sliding bearings are designed with very low bearing air, the lubricant exchange in the bearing gap deteriorates. A poor supply of lubricant also leads to increased wear during prolonged use of the camshaft. If the bearing air is increased so that a slightly larger gap between the bore in the cam member and the outside of the outer shaft is formed, although the lubricant exchange is improved, but it can lead to edge bearing effects, which are also to be avoided.
- the object of the invention is the development of an adjustable camshaft with an improved recording of the cam elements on the outside of the outer shaft.
- the wear of the camshaft should be minimized.
- the invention includes the technical teaching that the bearing between the cam member and the outside of the outer shaft arranged rolling elements.
- a rolling bearing assembly can be created, which allows a torque minimum rotation of the cam member on the outer shaft, since a rolling bearing has a lower loss friction compared to a plain bearing. Furthermore, the wear of the bearing can be reduced, since with a sliding contact of a cam member on the outer shaft full lubrication due to the very small, and only short-term rotational movements can not be fully built.
- a particular advantage is further characterized in that a rolling bearing can be biased despite maintaining low torque, so that the periodic introduction of force by a tapping element on the cam member does not lead to a recurrent tilting of the cam member on the outer shaft. As a result, no edge support effects, so that a total of a roller bearing arranged between the cam member and the outer side of the outer shaft rolling elements allows a slightly biased recording of the cam member on the outer shaft, without larger torsional torques are required.
- the cam member may have a receiving bore for receiving the rolling elements, wherein the rolling elements may abut against the inner surface of the receiving bore.
- the rolling elements can roll directly in the bore in the cam element, so that the cam element at the same time assumes the function of a bearing outer ring.
- the rolling elements bear against the outside of the outer shaft in direct contact, so that the outer side of the outer shaft forms a bearing inner ring on which the rolling elements can roll off.
- the bearing may comprise a bearing outer ring, which is seated in the receiving bore of the cam member and against which the rolling elements.
- the bearing may comprise a bearing outer ring, which is seated in the receiving bore of the cam member and against which the rolling elements.
- the rolling elements can form, for example, needles or rollers, wherein balls can also be provided, which are arranged between the outer side of the outer shaft and the cam member.
- balls can also be provided, which are arranged between the outer side of the outer shaft and the cam member.
- two ball bearing sets can be provided, which are located in the outer areas of the receiving bore.
- a circumferential bearing groove can be introduced in the outer side of the outer shaft, in which the rolling elements are at least a part of their diameter.
- the bearing groove has a smaller diameter than the diameter of the outside of the outer shaft.
- the cam member may be rotatably connected to the inner shaft with a bolt, and this may be passed through an opening in the outer shaft, wherein the bearing axially adjacent to the bolt or to the opening can be arranged.
- the arrangement of the bolt does not interfere with the inclusion of rolling elements between the cam member and the outside of the outer shaft.
- the cam element may have a cam collar, which is integrally formed on a base body of the cam element.
- the rolling elements may be limited in length to the width of the base body.
- the rolling elements can be located in the receiving bore within or below the base body and laterally the cam collar connects, which serves to receive the bolt.
- a bearing cage may be provided in which the Rolling, in particular self-holding, are added. It is also possible to attach locking washers to the cam element in order to fix the bearing cage with the rolling elements in the axial position.
- FIG. 1 shows a cross-section of an adjustable camshaft 1, which can serve for the valve train of an internal combustion engine.
- the camshaft 1 has an outer shaft 10 and an inner shaft 11 extending through the outer shaft 10, wherein the inner shaft 11 is rotatable in the outer shaft 10.
- the cam member 12 is rotatably received on the outer side 14 of the outer shaft 10 to form a bearing 13.
- the bearing 13 has rolling bodies 15, which are located in the receiving bore in the cam member 12 and via which the cam member 12 is mounted on the outer side 14 of the outer shaft 10.
- an upper rolling element 15 is cut and a lower rolling element 15 is shown uncut.
- the rolling elements 15 are formed as needles and distributed over the circumference at the same distance a plurality of needles between the cam member 12 and the outer side 14 of the outer shaft 10 are arranged.
- the cam element 12 has a base body 22 and a cam collar 21.
- the base body 22 has on the outside a cam track 24, via which a tapping element taps a control movement for a valve of the internal combustion engine.
- the cam collar 21 connects, and the rolling elements 15 have a length which is limited to the width of the base body 22.
- the bolt 19 can be arranged in the cam collar 21.
- FIG. 2 shows a cross-sectional view of the outer shaft 10 with inserted therein openings 20 for passing the bolt 19.
- a bearing groove 18 is introduced, which has a width which corresponds substantially to the length of the rolling elements 15 .
- a substantial advantage of the bearing groove 18 is the possibility that can be carried out without structural changes of the camshaft 1, the rolling elements 15 can be performed with a customized diameter, and for example, the bearing groove 18 is a radial Have depth that corresponds approximately to half the diameter of the rolling elements 15.
- FIG. 3 shows a further embodiment of an adjustable camshaft 1 with an outer shaft 10 and an inner shaft 11 and on the outer side 14 of the outer shaft 10, a cam member 12 is received via a bearing 13.
- the storage 13 is as complete rolling bearing with a bearing outer ring 16 and running with a bearing inner ring 17, and between the bearing outer ring 16 and the bearing inner ring 17, the rolling elements 15 are rolling the rolling elements 15 against the bearing outer ring 16 and the bearing inner ring 17 from, and the bearing outer ring 16 is in the Receiving bore inserted in the cam member 12, and the bearing inner ring 17 is applied to the outer side 14 of the outer shaft 10.
- the rolling bearing with the rolling elements 15, the bearing outer ring 16 and the bearing inner ring 17 is located below the base body 22, and thus laterally to the cam collar 21 with the pin 19th
- FIG. 4 finally shows a perspective view of the adjustable camshaft 1 with the outer shaft 10 which extends in the shaft axis 23 and on the outer shaft 10, the cam member 12 is received via the bearing 13.
- the perspective view shows a plurality of rolling elements 15 for forming the bearing 13, which are located below the main body 22 of the cam member 12.
- the side of the body 22 subsequent cam collar 21 serves to receive the bolt 19th
- FIG. 5 shows a cross-sectional view of another embodiment of an adjustable camshaft 1 according to the invention, which can serve for the valve train of an internal combustion engine.
- the in the FIG. 5 shown camshaft 1 substantially corresponds to that in the FIG. 1 shown camshaft 1 and thus also has an outer shaft 10 and extending through the outer shaft 10 extending inner shaft 11, wherein the inner shaft 11 in the outer shaft 10 is rotatable.
- the cam member 12 is rotatably received on the outer side 14 of the outer shaft 10 to form a bearing 13.
- the bearing 13 has rolling elements 15 which are located in the receiving bore in the cam member 12 and via which the cam member 12 on the outside 14 of the Outer shaft 10 is mounted.
- an upper rolling element 15 is cut and a lower rolling element 15 is shown uncut.
- the rolling elements 15 are formed as needles and distributed over the circumference at the same distance a plurality of needles between the cam member 12 and the outer side 14 of the outer shaft 10 are arranged.
- the in the FIG. 5 shown camshaft 1 differs from that in the FIG. 1 shown camshaft 1 substantially in that the outer shaft 10 is no bearing groove 18 for the axial guidance of the rolling elements 15, in particular in the FIG. 2 shown.
- the rolling elements 15 bear against the outside of the outer shaft 10 in direct contact, so that the outer side of the outer shaft 10 advantageously forms a bearing inner ring on which the rolling elements can roll off.
- a prior processing of the outer shaft 10 to create bearing grooves 18 is therefore advantageously not required.
- the cam member 12 has a base body 22 and a cam collar 21.
- the base body 22 has on the outside a cam track 24, via which a tapping element taps a control movement for a valve of the internal combustion engine.
- the cam collar 21 connects, and the rolling elements 15 have a length which is limited to the width of the base body 22.
- the bolt 19 can be arranged in the cam collar 21.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
Die vorliegende Erfindung betrifft eine verstellbare Nockenwelle für den Ventiltrieb einer Brennkraftmaschine mit einer Außenwelle und mit einer sich durch die Außenwelle hindurch erstreckenden Innenwelle, wobei auf der Außenwelle wenigstens ein Nockenelement angeordnet und mit der Innenwelle drehfest verbunden ist, wobei das Nockenelement unter Bildung einer Lagerung drehbar auf der Außenseite der Außenwelle aufgenommen ist.The present invention relates to an adjustable camshaft for the valve train of an internal combustion engine with an outer shaft and with an extending through the outer shaft inner shaft, wherein on the outer shaft at least one cam member and rotatably connected to the inner shaft, wherein the cam member rotatable to form a bearing is absorbed on the outside of the outer shaft.
Die
Die Nockenelemente weisen Nockenbahnen auf, die mit Abgriffselementen in Kontakt stehen. Rotiert die Nockenwelle um ihre Längsachse, so wird durch die Abgriffselemente eine periodische Kraftbeaufschlagung in die Nockenelemente bewirkt. Die dynamische Kraftbeaufschlagung der Nockenelemente führt zu einer periodischen Wechselbelastung der Lagerung, die durch die drehbare Aufnahme der Nockenelemente auf der Außenseite der Außenwelle gebildet ist.The cam elements have cam tracks in contact with tapping elements. If the camshaft rotates about its longitudinal axis, a periodic application of force to the cam elements is effected by the tapping elements. The dynamic application of force to the cam members results in a periodic cycling of the bearing formed by the rotatable engagement of the cam members on the outside of the outer shaft.
Verschleißuntersuchungen haben gezeigt, dass gerade diese Wechselbelastung zwar einen verbesserten Ölaustausch im Gleitspalt zwischen dem Nockenelement und der Außenseite der Außenwelle bewirkt, da sich eine Art Pumpeffekt einstellt, jedoch führt eine periodische, minimale Kippbewegung der Nockenelemente auf der Außenseite der Außenwelle zu erhöhtem Verschleiß.Wear tests have shown that although this alternating load, although an improved oil exchange in the sliding gap between the cam member and the outer side of the outer shaft causes, as a kind of pumping effect sets, however, a periodic, minimal tilting movement of the cam elements on the outside of the outer shaft to increased wear.
Grundsätzlich werden Nockenelemente auf der Außenseite von Außenwellen über Gleitlagerungen drehbar aufgenommen. Werden die Gleitlagerungen mit sehr geringer Lagerluft ausgebildet, so verschlechtert sich der Schmierstoffaustausch im Lagerspalt. Eine schlechte Schmierstoffversorgung führt bei längerem Gebrauch der Nockenwelle ebenfalls zu einem erhöhten Verschleiß. Wird die Lagerluft erhöht, sodass ein etwas größerer Spalt zwischen der Bohrung im Nockenelement und der Außenseite der Außenwelle entsteht, so wird zwar der Schmierstoffaustausch verbessert, jedoch kann es zu Kantentrageffekten kommen, die ebenfalls zu vermeiden sind.Basically, cam elements are rotatably received on the outside of outer shafts via slide bearings. If the sliding bearings are designed with very low bearing air, the lubricant exchange in the bearing gap deteriorates. A poor supply of lubricant also leads to increased wear during prolonged use of the camshaft. If the bearing air is increased so that a slightly larger gap between the bore in the cam member and the outside of the outer shaft is formed, although the lubricant exchange is improved, but it can lead to edge bearing effects, which are also to be avoided.
Ein weiterer Nachteil einer sehr geringen Lagerluft, die zum Beispiel gebildet wird wenn die Nockenelemente auf der Außenseite der Außenwelle leicht vorgespannt werden, betreffen höhere notwendige Verstellkräfte, zumal auf einer Nockenwelle zumeist mehrere drehbar auf der Außenseite der Außenwelle aufgenommene Nockenelemente vorgesehen sind. Soll also die Innenwelle in der Außenwelle verdreht werden, beispielsweise durch einen hydraulisch wirkenden Phasenversteller, so muss dieser den erhöhten Verstellmomenten angepasst werden, wodurch nachteilhafterweise eine verstärkte Ölversorgung notwendig wird.Another disadvantage of a very low internal clearance, which is formed for example when the cam elements are slightly biased on the outside of the outer shaft, affect higher necessary adjustment forces, especially since a plurality of cam elements rotatably received on the outside of the outer shaft are provided on a camshaft. So if the inner shaft to be rotated in the outer shaft, for example by a hydraulically acting phaser, so this must be adapted to the increased Verstellmomenten, which disadvantageously an increased oil supply is necessary.
Aufgabe der Erfindung ist die Weiterbildung einer verstellbaren Nockenwelle mit einer verbesserten Aufnahme der Nockenelemente auf der Außenseite der Außenwelle. Insbesondere soll der Verschleiß der Nockenwelle minimiert werden.The object of the invention is the development of an adjustable camshaft with an improved recording of the cam elements on the outside of the outer shaft. In particular, the wear of the camshaft should be minimized.
Diese Aufgabe wird ausgehend von einer verstellbaren Nockenwelle gemäß dem Oberbegriff des Anspruchs 1 in Verbindung mit den kennzeichnenden Merkmalen gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved on the basis of an adjustable camshaft according to the preamble of
Die Erfindung schließt die technische Lehre ein, dass die Lagerung zwischen dem Nockenelement und der Außenseite der Außenwelle angeordnete Wälzkörper aufweist.The invention includes the technical teaching that the bearing between the cam member and the outside of the outer shaft arranged rolling elements.
Zwischen dem Nockenelement und der Außenseite der Außenwelle angeordnete Wälzlager ermöglichen eine drehbare Aufnahme des Nockenelementes auf der Außenwelle, mit der die eingangs aufgeführten Nachteile des Standes der Technik überwunden werden können.Between the cam member and the outer side of the outer shaft arranged rolling bearings allow a rotatable mounting of the cam member on the outer shaft, with which the above-mentioned disadvantages of the prior art can be overcome.
Durch die Wälzkörper kann eine Wälzlageranordnung geschaffen werden, die eine momentenminimale Verdrehung des Nockenelementes auf der Außenwelle ermöglicht, da eine Wälzlagerung im Vergleich zu einer Gleitlagerung eine geringere Verlustreibung aufweist. Weiterhin kann der Verschleiß der Lagerung reduziert werden, da bei einem Gleitkontakt eines Nockenelementes auf der Außenwelle eine Vollschmierung aufgrund der sehr kleinen, und nur kurzzeitigen Drehbewegungen nicht vollständig aufgebaut werden kann. Ein besonderer Vorteil entsteht weiterhin dadurch, dass eine Wälzlagerung trotz Aufrechterhaltung geringer Verdrehmomente vorgespannt werden kann, sodass die periodische Krafteinleitung durch ein Abgriffselement auf das Nockenelement nicht zu einer wiederkehrenden Verkippung des Nockenelementes auf der Außenwelle führt. Dadurch entstehen keine Kantentrageffekte, sodass insgesamt eine Wälzlagerung mit zwischen dem Nockenelement und der Außenseite der Außenwelle angeordneten Wälzkörpern eine leicht vorgespannte Aufnahme des Nockenelementes auf der Außenwelle ermöglicht, ohne dass größere Verdrehmomente erforderlich werden.By the rolling elements, a rolling bearing assembly can be created, which allows a torque minimum rotation of the cam member on the outer shaft, since a rolling bearing has a lower loss friction compared to a plain bearing. Furthermore, the wear of the bearing can be reduced, since with a sliding contact of a cam member on the outer shaft full lubrication due to the very small, and only short-term rotational movements can not be fully built. A particular advantage is further characterized in that a rolling bearing can be biased despite maintaining low torque, so that the periodic introduction of force by a tapping element on the cam member does not lead to a recurrent tilting of the cam member on the outer shaft. As a result, no edge support effects, so that a total of a roller bearing arranged between the cam member and the outer side of the outer shaft rolling elements allows a slightly biased recording of the cam member on the outer shaft, without larger torsional torques are required.
Zur Ausgestaltung eines Wälzlagers mit zwischen dem Nockenelement und der Außenseite der Außenwelle angeordneten Wälzkörpern können mehrere Varianten vorgesehen werden. Beispielsweise kann das Nockenelement eine Aufnahmebohrung zur Aufnahme der Wälzkörper aufweisen, wobei die Wälzkörper gegen die Innenoberfläche der Aufnahmebohrung anliegen können. Damit können die Wälzkörper unmittelbar in der Bohrung im Nockenelement abwälzen, sodass das Nockenelement zugleich die Funktion eines Lageraußenringes einnimmt.For the design of a rolling bearing with arranged between the cam member and the outer side of the outer shaft rolling elements several variants can be provided. For example, the cam member may have a receiving bore for receiving the rolling elements, wherein the rolling elements may abut against the inner surface of the receiving bore. Thus, the rolling elements can roll directly in the bore in the cam element, so that the cam element at the same time assumes the function of a bearing outer ring.
Weiterhin kann vorgesehen sein, dass die Wälzkörper auch gegen die Außenseite der Außenwelle in direktem Kontakt anliegen, sodass die Außenseite der Außenwelle einen Lagerinnenring bildet, auf dem die Wälzkörper abwälzen können.Furthermore, it can be provided that the rolling elements bear against the outside of the outer shaft in direct contact, so that the outer side of the outer shaft forms a bearing inner ring on which the rolling elements can roll off.
Als alternative Ausgestaltung zur direkten Aufnahme der Wälzkörper in der Aufnahmebohrung des Nockenelementes und auf der Außenseite der Außenwelle besteht die weitere Möglichkeit, eine Lagerung mit einem Lageraußenring und/oder mit einem Lagerinnenring zu schaffen. Beispielsweise kann die Lagerung einen Lageraußenring umfassen, der in der Aufnahmebohrung des Nockenelementes einsitzt und gegen den die Wälzkörper anliegen. Unabhängig von der Anordnung eines Lageraußenringes kann auch ein Lagerinnenring vorgesehen werden, der auf der Außenseite der Außenwelle aufsitzt und gegen den die Wälzkörper anliegen und abwälzen.As an alternative embodiment for directly receiving the rolling elements in the receiving bore of the cam member and on the outside of the outer shaft is the further possibility to provide a bearing with a bearing outer ring and / or with a bearing inner ring. For example, the bearing may comprise a bearing outer ring, which is seated in the receiving bore of the cam member and against which the rolling elements. Regardless of the arrangement of a bearing outer ring and a bearing inner ring can be provided, which rests on the outside of the outer shaft and abut against the rolling elements and roll.
Die Wälzkörper können beispielsweise Nadeln oder Rollen bilden, wobei auch Kugeln vorgesehen werden können, die zwischen der Außenseite der Außenwelle und dem Nockenelement angeordnet werden. Beispielsweise können zwei Kugellagersätze vorgesehen sein, die in den Außenbereichen der Aufnahmebohrung einsitzen.The rolling elements can form, for example, needles or rollers, wherein balls can also be provided, which are arranged between the outer side of the outer shaft and the cam member. For example, two ball bearing sets can be provided, which are located in the outer areas of the receiving bore.
Mit weiterem Vorteil kann in der Außenseite der Außenwelle eine umlaufende Lagernut eingebracht sein, in der die Wälzkörper wenigstens mit einem Teil ihres Durchmessers einsitzen. Die Lagernut hat dabei einen geringeren Durchmesser als der Durchmesser der Außenseite der Außenwelle. Dadurch wird der Vorteil erreicht, dass die Wälzkörper mit einem größeren Durchmesser vorgesehen werden können, ohne dass die geometrischen Grundabmessungen einer verstellbaren Nockenwelle verändert werden müssen. Jedoch sollte die Lagernut nicht zu tief in die Außenwelle eingebracht werden, sodass die Außenwelle nicht nachhaltig geschwächt wird.With further advantage, a circumferential bearing groove can be introduced in the outer side of the outer shaft, in which the rolling elements are at least a part of their diameter. The bearing groove has a smaller diameter than the diameter of the outside of the outer shaft. As a result, the advantage is achieved that the rolling elements can be provided with a larger diameter, without the basic geometric dimensions of an adjustable camshaft must be changed. However, the bearing groove should not be inserted too deeply into the outer shaft, so that the outer shaft is not permanently weakened.
Das Nockenelement kann mit einem Bolzen verdrehfest mit der Innenwelle verbunden sein, und dieser kann durch eine Öffnung in der Außenwelle geführt werden, wobei die Lagerung axial benachbart zum Bolzen beziehungsweise zur Öffnung angeordnet werden kann. Dadurch stört die Anordnung des Bolzens nicht die Aufnahme von Wälzkörpern zwischen dem Nockenelement und der Außenseite der Außenwelle. Insbesondere kann das Nockenelement einen Nockenbund aufweisen, der seitlich an einem Grundkörper des Nockenelementes angeformt ist. Dabei können die Wälzkörper in der Länge auf die Breite des Grundkörpers begrenzt sein. So können sich die Wälzkörper in der Aufnahmebohrung innerhalb beziehungsweise unterhalb des Grundkörpers befinden und seitlich schließt sich der Nockenbund an, der zur Aufnahme des Bolzens dient.The cam member may be rotatably connected to the inner shaft with a bolt, and this may be passed through an opening in the outer shaft, wherein the bearing axially adjacent to the bolt or to the opening can be arranged. As a result, the arrangement of the bolt does not interfere with the inclusion of rolling elements between the cam member and the outside of the outer shaft. In particular, the cam element may have a cam collar, which is integrally formed on a base body of the cam element. The rolling elements may be limited in length to the width of the base body. Thus, the rolling elements can be located in the receiving bore within or below the base body and laterally the cam collar connects, which serves to receive the bolt.
Mit weiterem Vorteil kann zwischen dem Nockenbund und der Außenseite der Außenwelle ein Gleitkontakt, insbesondere unter Bildung eines Gleitlagers ausgebildet sein. Damit kann eine weitere Stabilisierung des Nockenelementes auf der Außenwelle gegen Verkippung weitergebildet werden, sodass eine Lagerkombination zwischen einem Wälzlager und einem Gleitlager zur Aufnahme eines Nockenelementes auf der Außenwelle geschaffen wird. Insbesondere eine solche Kombination aus Gleitlager und Wälzlager schafft besondere Vorteile hinsichtlich eines minimalen Verschleißes, einer leichten Verstellmöglichkeit und einem minimalen Verkippen des Nockenelementes auf der Außenwelle.With further advantage may be formed between the cam collar and the outer side of the outer shaft, a sliding contact, in particular to form a sliding bearing. Thus, a further stabilization of the cam element on the outer shaft against tilting can be developed, so that a bearing combination between a rolling bearing and a plain bearing for receiving a cam element is provided on the outer shaft. In particular, such a combination of sliding bearing and rolling bearing provides particular advantages in terms of minimal wear, easy adjustment and minimal tilting of the cam member on the outer shaft.
Gemäß einer weiteren vorteilhaften Ausführungsform der Lagerung zur Aufnahme des Nockenelementes auf der Außenwelle kann ein Lagerkäfig vorgesehen sein, in dem die Wälzkörper, insbesondere selbsthaltend, aufgenommen sind. Auch besteht die Möglichkeit, am Nockenelement Sicherungsscheiben anzubringen, um den Lagerkäfig mit den Wälzkörpern in der Axialposition zu fixieren.According to a further advantageous embodiment of the bearing for receiving the cam member on the outer shaft, a bearing cage may be provided in which the Rolling, in particular self-holding, are added. It is also possible to attach locking washers to the cam element in order to fix the bearing cage with the rolling elements in the axial position.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand der Figuren näher dargestellt. Es zeigt:
Figur 1- eine Querschnittsansicht einer verstellbaren Nockenwelle mit einem Nockenelement, das erfindungsgemäß über Wälzkörper auf der Außenseite einer Außenwelle aufgenommen ist,
- Figur 2
- eine quergeschnittene Ansicht einer Außenwelle für eine verstellbare Nockenwelle zur Aufnahme von Wälzkörpern auf der Außenseite der Außenwelle,
- Figur 3
- ein weiteres Ausführungsbeispiel einer verstellbaren Nockenwelle mit einer Lagerung, die durch ein Wälzlager mit Wälzkörpern ausgebildet ist,
- Figur 4
- eine perspektivische Ansicht einer verstellbaren Nockenwelle mit einem Nockenelement, das über Wälzkörper auf der Außenwelle aufgenommen ist, und
- Figur 5
- eine Querschnittsansicht einer weiteren verstellbaren Nockenwelle mit einem Nockenelement, das erfindungsgemäß über Wälzkörper auf der Außenseite einer Außenwelle aufgenommen ist,
- FIG. 1
- a cross-sectional view of an adjustable camshaft with a cam member which is received according to the invention via rolling elements on the outside of an outer shaft,
- FIG. 2
- a cross-sectional view of an outer shaft for an adjustable camshaft for receiving rolling elements on the outside of the outer shaft,
- FIG. 3
- Another embodiment of an adjustable camshaft with a bearing, which is formed by a rolling bearing with rolling elements,
- FIG. 4
- a perspective view of an adjustable camshaft with a cam member which is received on the outer shaft via rolling elements, and
- FIG. 5
- a cross-sectional view of another adjustable camshaft with a cam member which is received according to the invention via rolling elements on the outside of an outer shaft,
Die Lagerung 13 weist Wälzkörper 15 auf, die sich in der Aufnahmebohrung im Nockenelement 12 befinden und über die das Nockenelement 12 auf der Außenseite 14 der Außenwelle 10 gelagert ist. Dabei ist beispielhaft ein oberer Wälzkörper 15 geschnitten und ein unterer Wälzkörper 15 ungeschnitten dargestellt. Die Wälzkörper 15 sind als Nadeln ausgebildet und es sind über den Umfang verteilt in gleichem Abstand mehrere Nadeln zwischen dem Nockenelement 12 und der Außenseite 14 der Außenwelle 10 angeordnet.The
Das Nockenelement 12 weist einen Grundkörper 22 und einen Nockenbund 21 auf. Der Grundkörper 22 weist außenseitig eine Nockenbahn 24 auf, über die durch ein Abgriffselement eine Steuerbewegung für ein Ventil der Brennkraftmaschine abgegriffen wird. Seitlich an den Grundkörper 22 schließt sich der Nockenbund 21 an, und die Wälzkörper 15 weisen eine Länge auf, die auf die Breite des Grundkörpers 22 begrenzt ist. Damit befinden sich unter dem Nockenbund 21 keine Wälzkörper, und der Bolzen 19 kann im Nockenbund 21 angeordnet werden.The
Die über die Nockenbahn 24 periodisch auf den Grundkörper 22 einwirkenden Kräfte werden über die Wälzkörper 15 aufgenommen, sodass die Wälzkörper 15 unter dem Krafteinleitungsbereich der Kräfte auf das Nockenelement 12 angeordnet sind. Dadurch wird im Betrieb der Nockenwelle 1 erreicht, dass das Nockenelement 12 im Wesentlichen verkippungsfrei auf der Außenseite 14 der Außenwelle 10 aufsitzt, wobei zwischen dem Nockenbund 21 und der Außenseite 14 der Außenwelle 10 zusätzlich ein Gleitkontakt vorgesehen sein kann.The forces acting on the
Die Wälzlagerung mit den Wälzkörpern 15, dem Lageraußenring 16 und dem Lagerinnenring 17 befindet sich unter dem Grundkörper 22, und damit seitlich zum Nockenbund 21 mit dem Bolzen 19.The rolling bearing with the rolling
Wird die Innenwelle 11 relativ zur Außenwelle 10 um die Wellenachse 23 verdreht, so schwenkt der mit der Innenwelle 11 verbundene Bolzen 19 in den länglich ausgebildeten Öffnungen 20 in der Außenwelle 10. Dadurch wälzen die Wälzkörper 15 gegen die Ringe 16 und 17 ab, und das Nockenelement 12 kann gegenüber der Außenwelle 10 gemeinsam mit der Innenwelle 11 verschwenken.If the
Die Lagerung 13 weist Wälzkörper 15 auf, die sich in der Aufnahmebohrung im Nockenelement 12 befinden und über die das Nockenelement 12 auf der Außenseite 14 der Außenwelle 10 gelagert ist. Dabei ist beispielhaft ein oberer Wälzkörper 15 geschnitten und ein unterer Wälzkörper 15 ungeschnitten dargestellt. Die Wälzkörper 15 sind als Nadeln ausgebildet und es sind über den Umfang verteilt in gleichem Abstand mehrere Nadeln zwischen dem Nockenelement 12 und der Außenseite 14 der Außenwelle 10 angeordnet. Die in der
Wie des Weiteren in der
Die über die Nockenbahn 24 periodisch auf den Grundkörper 22 einwirkenden Kräfte werden über die Wälzkörper 15 aufgenommen, sodass die Wälzkörper 15 unter dem Krafteinleitungsbereich der Kräfte auf das Nockenelement 12 angeordnet sind. Dadurch wird im Betrieb der Nockenwelle 1 erreicht, dass das Nockenelement 12 im Wesentlichen verkippungsfrei auf der Außenseite 14 der Außenwelle 10 aufsitzt, wobei zwischen dem Nockenbund 21 und der Außenseite 14 der Außenwelle 10 zusätzlich ein Gleitkontakt vorgesehen sein kann.The forces acting on the
Claims (10)
- Adjustable camshaft (1) for the valve drive of an internal combustion engine, with an outer shaft (10) and with an inner shaft (11) extending through the outer shaft (10), wherein at least one cam element (12) is arranged on the outer shaft (10) and is connected to the inner shaft (11) for rotation therewith, wherein the cam element (12) is accommodated rotatably on the outer side (14) of the outer shaft (10), thereby forming a bearing (13), characterized in that the bearing (13) comprises rolling bodies (15) arranged between the cam element (12) and the outer side (14) of the outer shaft (10).
- Adjustable camshaft (1) according to Claim 1, characterized in that the cam element (12) comprises a receiving bore for receiving the rolling bodies (15), wherein the rolling bodies (15) lie against the inner surface of the receiving bore.
- Adjustable camshaft (1) according to Claim 1 or 2, characterized in that the rolling bodies (15) lie against the outer side (14) of the outer shaft (10).
- Adjustable camshaft (1) according to either of Claims 1 and 3, characterized in that the bearing (13) comprises a bearing outer ring (16) which sits in the receiving bore of the cam element (12) and against which the rolling bodies (15) lie.
- Adjustable camshaft (1) according to one of Claims 1, 2 or 4, characterized in that the bearing (13) comprises a bearing inner ring (17) which sits on the outer side (14) of the outer shaft (10) and against which the rolling bodies (15) lie.
- Adjustable camshaft (1) according to one of Claims 1 to 4, characterized in that an encircling bearing groove (18), in which the rolling bodies (15) at least partially sit, is introduced into the outer side (14) of the outer shaft (10).
- Adjustable camshaft (1) according to one of the preceding claims, characterized in that the cam element (12) is connected with a bolt (19) to the inner shaft (11) for rotation therewith, wherein the bolt (19) is guided through an opening (20) in the outer shaft (10), and wherein the bearing (13) is arranged axially adjacent to the bolt (19) or to the opening (20).
- Adjustable camshaft (1) according to one of the preceding claims, characterized in that the cam element (12) has a cam collar (21) which is integrally formed laterally on a basic body (22) of the cam element (12), wherein the rolling bodies (15) are limited in length to the width of the basic body (22).
- Adjustable camshaft (1) according to Claim 8, characterized in that a sliding contact is formed between the cam collar (21) and the outer side (14) of the outer shaft (10), in particular so as to form a sliding bearing.
- Adjustable camshaft (1) according to one of the preceding claims, characterized in that a bearing cage is provided in which the rolling bodies (15) are accommodated in particular in a self-retaining manner.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014104994.2A DE102014104994A1 (en) | 2014-04-08 | 2014-04-08 | adjustable camshaft |
PCT/EP2015/057308 WO2015155115A1 (en) | 2014-04-08 | 2015-04-02 | Adjustable camshaft |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3129614A1 EP3129614A1 (en) | 2017-02-15 |
EP3129614B1 true EP3129614B1 (en) | 2018-03-28 |
Family
ID=52781110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15713510.4A Active EP3129614B1 (en) | 2014-04-08 | 2015-04-02 | Adjustable camshaft |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3129614B1 (en) |
DE (1) | DE102014104994A1 (en) |
WO (1) | WO2015155115A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013007741A1 (en) * | 2013-05-07 | 2014-11-13 | Thyssenkrupp Presta Teccenter Ag | camshaft |
DE102020207134A1 (en) | 2020-06-08 | 2021-12-09 | Mahle International Gmbh | Adjustable camshaft |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19514786C2 (en) * | 1995-04-21 | 2002-08-14 | Audi Ag | Device for discrete adjustment of the phase position of at least two camshafts |
DE102005014680A1 (en) | 2005-02-03 | 2006-08-10 | Mahle International Gmbh | Camshaft with mutually rotatable cam for motor vehicles in particular |
JP2008208731A (en) * | 2007-02-23 | 2008-09-11 | Honda Motor Co Ltd | Variable valve timing mechanism |
DE102009055868A1 (en) * | 2009-11-26 | 2011-06-01 | Neumayer Tekfor Holding Gmbh | camshaft |
DE102010020845A1 (en) * | 2010-05-18 | 2011-11-24 | Aktiebolaget Skf | Bearing housing for camshaft bearing of internal combustion engine, is made of steel material, and has borehole, where rolling element raceway is provided, which is formed in borehole in single-piece manner |
DE102011081483A1 (en) * | 2011-08-24 | 2013-02-28 | Mahle International Gmbh | Method for simplified and precise positioning of a camshaft module on a cylinder head |
DE102012103581A1 (en) * | 2012-04-24 | 2013-10-24 | Thyssenkrupp Presta Teccenter Ag | Camshaft with oilable, adjustable cam |
DE102012103594B4 (en) * | 2012-04-24 | 2015-08-27 | Thyssenkrupp Presta Teccenter Ag | Camshaft with oil sprayable, adjustable cam |
GB2504100A (en) * | 2012-07-17 | 2014-01-22 | Mechadyne Internat Ltd | A concentric camshaft supported by roller bearings |
-
2014
- 2014-04-08 DE DE102014104994.2A patent/DE102014104994A1/en not_active Withdrawn
-
2015
- 2015-04-02 EP EP15713510.4A patent/EP3129614B1/en active Active
- 2015-04-02 WO PCT/EP2015/057308 patent/WO2015155115A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP3129614A1 (en) | 2017-02-15 |
WO2015155115A1 (en) | 2015-10-15 |
DE102014104994A1 (en) | 2015-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102009011256B4 (en) | Rocker arm arrangement | |
DE102008053723B4 (en) | Built camshaft | |
DE102011003556B4 (en) | Device for changing the angular position of a camshaft relative to a crankshaft of an internal combustion engine | |
DE102015200971B3 (en) | Bearing arrangement and exhaust gas turbocharger | |
EP1608849A1 (en) | Valve drive of an internal combustion engine comprising a cylinder head | |
DE102014226853A1 (en) | Cam follower roller device | |
DE202006014691U1 (en) | Shell bearing for shaft has coating containing amorphous diamond-like carbon on inner surface of first bearing body | |
DE102007013727A1 (en) | Bearing for shaft of turbocharger, comprises rotor of turbine, which is mounted at one end of bearing, rotor of compressor, which is connected at another end of bearing, and spacer ring formed by elongated inner ring | |
EP2744986B1 (en) | Adjustable camshaft arrangement | |
DE102014116480A1 (en) | Storage of a switching camshaft | |
DE102016205833A1 (en) | Valve train for an internal combustion engine | |
EP3129614B1 (en) | Adjustable camshaft | |
DE102012016672A1 (en) | Internal combustion engine has recess engaged in shaft along radial direction of basic camshaft and in bearing recess of bearing, and bearing seats that are arranged between cylinders of engine main portion along axial direction | |
DE102007014544A1 (en) | Internal-combustion engine, has stop element forming axial-bearing that cooperates for axial storage with bearing frame that includes free space for bearing shape of cam, where element is formed by cam of cam shaft | |
DE102013107392A1 (en) | Mechanical system with one-way clutch and generator comprising such a system | |
DE69115348T2 (en) | Valve turning device for an internal combustion engine | |
DE102013107418A1 (en) | Mechanical system with one-way clutch and generator comprising such a system | |
WO2014206553A1 (en) | Adjustable camshaft | |
EP2744987B1 (en) | Camshaft for the valve train of an internal combustion engine | |
DE102016201913A1 (en) | Centrifugal camshaft adjuster for a motorcycle | |
DE102014218872A1 (en) | Arrangement of a rocker arm for the valve train of an internal combustion engine | |
DE10310277A1 (en) | switching device | |
DE102013107420A1 (en) | Mechanical system with one-way clutch and generator comprising such a system | |
DE102020102632B4 (en) | Device for phase shifting an angle of rotation of a drive part to an output part | |
DE102014209312A1 (en) | Camshaft adjusting arrangement, comprising axial securing means of clamping sleeve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
17P | Request for examination filed |
Effective date: 20160912 |
|
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 |
|
INTG | Intention to grant announced |
Effective date: 20171215 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP PRESTA TECCENTER AG |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
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: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 983644 Country of ref document: AT Kind code of ref document: T Effective date: 20180415 |
|
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: 502015003620 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 4 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20180328 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: 20180328 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: 20180628 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: 20180328 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20180328 |
|
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: 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: 20180328 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: 20180628 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: 20180629 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: 20180328 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20180328 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20180328 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: 20180328 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: 20180328 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: 20180328 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: 20180328 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: 20180328 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: 20180328 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20180328 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: 20180328 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: 20180328 |
|
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: 20180430 |
|
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: 20180730 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502015003620 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
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: 20180402 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: 20180328 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: 20180328 |
|
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 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180430 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180430 |
|
26N | No opposition filed |
Effective date: 20190103 |
|
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: 20180402 |
|
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: 20180328 |
|
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: 20180328 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20180328 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: 20180328 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: 20150402 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20180728 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 983644 Country of ref document: AT Kind code of ref document: T Effective date: 20200402 |
|
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: 20200402 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230530 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20230424 Year of fee payment: 9 Ref country code: DE Payment date: 20230420 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20230420 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20240419 Year of fee payment: 10 |