EP2841723A1 - Valve drive of an internal combustion engine - Google Patents
Valve drive of an internal combustion engineInfo
- Publication number
- EP2841723A1 EP2841723A1 EP13723664.2A EP13723664A EP2841723A1 EP 2841723 A1 EP2841723 A1 EP 2841723A1 EP 13723664 A EP13723664 A EP 13723664A EP 2841723 A1 EP2841723 A1 EP 2841723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- valve
- valve actuating
- actuating cam
- adjusting
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 24
- 230000001747 exhibiting effect Effects 0.000 claims description 2
- 101100495769 Caenorhabditis elegans che-1 gene Proteins 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 24
- KJFBVJALEQWJBS-XUXIUFHCSA-N maribavir Chemical compound CC(C)NC1=NC2=CC(Cl)=C(Cl)C=C2N1[C@H]1O[C@@H](CO)[C@H](O)[C@@H]1O KJFBVJALEQWJBS-XUXIUFHCSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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
- F01L1/34—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
- F01L1/34403—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 using helically teethed sleeve or gear moving axially between crankshaft and camshaft
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
Definitions
- the invention relates to a valve train of an internal combustion engine, with at least one base camshaft, on the rotationally fixed and axially displaceable between at least two axial positions at least one cam carrier is provided, wherein at least one valve actuating cam for actuating a gas exchange valve of the internal combustion engine is associated with the cam carrier.
- Valve trains of the type mentioned are known from the prior art. They are used for internal combustion engines, in which the working cycle of gas exchange valves of individual cylinders of the internal combustion engine can be influenced to improve the thermodynamic properties.
- the at least one cam carrier which may also be referred to as a cam piece, is arranged rotationally fixed and axially displaceable on the base camshaft.
- the cam carrier is usually associated with a plurality, that is to say at least two, valve actuation cams. Each of these valve actuation cams has an eccentricity, which serves to actuate one of the gas exchange valves of the internal combustion engine at a specific angle of rotation of the basic camshaft.
- valve actuating cam run together with the base camshaft so that the respective gas exchange valve of the internal combustion engine is actuated by the associated valve actuating cam or its eccentricity at least once per revolution of the basic camshaft.
- the valve actuating cam cooperates preferably with a roller rocker arm of the gas exchange valve by coming into abutting contact with this.
- valve actuation cams are provided, which may be assigned to different cam groups.
- the valve actuation cams of a cam group now differ, for example, with regard to the angular position of their eccentricity or the extent of the same in the radial direction (height) and / or in the circumferential direction (length).
- the cam carrier By the axial displacement of the cam carrier it can be brought into at least two axial positions, for example in a first and a second axial position. In the first axial position, the gas exchange valve is actuated by a first one of the valve actuation cams and in the second axial position by a second one of the valve actuation cams associated with the same cam group. Due to the displacement of the cam carrier, in particular the opening time
- CONFIRMATION COPY point the opening duration and / or the stroke of the gas exchange valve, in particular depending on an operating condition of the internal combustion engine, are selected.
- the displacement or displacement of the cam carrier in the axial direction takes place by means of an adjusting device which comprises a cam carrier associated with the cam carrier and a stationarily arranged actuator, which is usually attached to a cylinder head of the internal combustion engine.
- the actuator has, for example, an extendable driver, which can be brought into engagement with a particular helical or spiral slide track of the shift gate.
- the slide track is provided on the shift gate, which is assigned to the cam carrier.
- the shift gate is located on the cam carrier or is at least operatively connected to it for axial displacement.
- the slide track is preferably in the form of a radial groove, which passes through the circumference of the shift gate, so it is formed open-edge in this.
- the shift gate has so far at least one slide track, in which the driver of the actuator for moving the cam carrier can be introduced.
- valve train having the features of claim 1.
- the valve actuating cam is rotatably mounted and by means of an adjusting device, a rotational angular position of the valve actuating cam with respect to the cam carrier is adjustable.
- the phase angle of the valve actuating cam with respect to the base camshaft is therefore variable.
- the phase position of the valve actuating cam can be changed, in particular the time of opening of the gas exchange valve can be shifted in time forward or backward by the corresponding rotational angle position is adjusted by means of the adjusting device.
- the setting of the angular position is preferably carried out continuously or discretely in at least two stages. So there are at least two different angular positions adjustable.
- the setting of the rotational angle position and the axial position can in principle be performed in any order one behind the other or during at least partially overlapping periods. It should be emphasized in the valve drive according to the invention that, during the adjustment, the rotational angle position of the valve actuation cam does not only change with respect to the base camshaft, but also with respect to the cam carrier.
- the valve actuation cam is So rotatably mounted both with respect to the base camshaft and with respect to the cam carrier and rotatable by means of the adjusting device.
- the rotational angular position of the valve actuating cam is independent of the axial position of the cam carrier adjustable. If the valve actuating cam is displaceable together with the cam carrier in the axial direction between the at least two axial positions, it can thus be provided that the desired valve actuating cam is selected for actuating the gas exchange valve by appropriate selection of the axial position and in addition this valve actuating cam is brought into a rotational angular position, in which in the present operating state of the internal combustion engine, a particularly advantageous operation is achieved.
- the axial position and the rotational angle position are preferably adjusted such that the power of the internal combustion engine is increased and / or their consumption or their pollutant emissions are reduced.
- valve actuation cams in particular all valve actuation cams of a cam group
- each of these valve actuating cam has the eccentricity described above, which may be present for the plurality of valve actuation cams each at different angular position and / or with different extension.
- valve actuating cam is rotatably mounted on, in particular on, the cam carrier and / or the base camshaft.
- the valve actuating cam can in principle be arranged arbitrarily with respect to the cam carrier. For example, it sits in the axial direction immediately adjacent to the cam carrier on the base camshaft. Accordingly, the valve actuating cam is mounted on the cam carrier or on the base camshaft. Preferred is the former embodiment, because in this case the valve actuating cam is displaceable or displaceable together with the cam carrier in the axial direction. It can also be provided that the valve actuating cam is present on the cam carrier, thus encompassing it.
- valve actuating cam has, for example, a central recess which, from the cam carrier, is moved axially in the axial direction. is penetrated.
- the valve actuating cam is therefore mounted on the cam carrier itself via a bearing, which is designed for example as a plain bearing or roller bearings.
- the valve actuating cam may of course also be present in the axial direction at a distance from the cam carrier. In this case, he is usually not together with this shiftable by means of the adjusting device.
- the adjusting device has an axially displaceable, a switching toothed exhibiting switching element, wherein the switching toothing with a valve actuating cam associated cam teeth is engaged, and both the gear teeth and the cam teeth are designed as helical teeth.
- the setting of the rotational angle position of the valve actuating cam thus takes place with the aid of the switching element, which is axially displaceable relative to the base camshaft and / or the cam carrier. It is particularly preferably rotatably mounted with respect to the base camshaft, so it rotates with this.
- the switching element has the switching toothing, which is in engagement with the cam teeth.
- the cam teeth are associated with the valve actuating cam, so may be formed in a preferred embodiment of the valve actuating cam.
- the cam teeth can also be present on a further element, which is preferably rigidly connected to the valve actuating cam, so that a rotational movement of the further element can be transmitted to the valve actuating cam.
- the teeth are each designed as helical teeth or as a thread. Accordingly, the axial displacement of the switching element causes a rotational movement of the cam teeth and corresponding to the valve actuating cam.
- the teeth are designed such that, although by changing the axial position, a change in the angular position can be made.
- a force acting on the valve actuating cam in the circumferential direction should not lead to a rotational movement of the valve actuating cam and thus to a change in the axial position.
- the teeth are preferably carried out so self-locking.
- the adjusting device has at least one relative to the base camshaft axially displaceable and / or rotatable adjusting shaft, which is operatively connected to the valve actuating cam.
- the adjusting shaft can in principle be arranged arbitrarily.
- the Versteliwelle is axially displaceable or rotatable with respect to the base camshaft.
- the adjusting shaft for example, for the actuation or axial displacement of the switching element described above with this operatively connected.
- the operative connection of the adjusting shaft with the valve actuating cam is thus provided only indirectly via this switching element.
- the adjusting shaft is rotatable with respect to the base camshaft, it is preferably provided that it normally rotates with it and is rotated only to change the rotational angular position of the valve actuating cam relative to the base camshaft.
- a further development of the invention provides that the adjusting shaft is operatively connected to the valve actuating cam via an adjusting mechanism. This is the case, in particular, when the adjustment of the rotational angle position of the valve actuating cam is to take place by means of the adjusting shaft which can be rotated with respect to the base camshaft.
- the adjusting mechanism is provided in such a manner in the operative connection between the adjusting shaft and the valve actuating cam, that a rotation of the adjusting shaft leads to a change in the rotational angular position of the valve actuating cam.
- the adjusting mechanism can be designed such that the adjusting shaft and the valve actuating cam each have a toothing, wherein these teeth are directly in engagement with each other. Accordingly, there is a direct operative connection between the adjusting shaft and the valve actuating cam.
- the adjusting mechanism has at least one toothed wheel which is present in the operative connection between the adjusting shaft and the valve actuating cam. Accordingly, the operative connection between the adjusting and the valve actuating cam is carried out only indirectly, namely on the at least one gear. It is provided, for example, that the adjusting shaft has a toothing which is in engagement with a toothing of the gear. The latter in turn is in engagement with a toothing of the valve actuating cam.
- the axes of rotation of the adjusting shaft, gear and valve actuating cam are arranged parallel to each other. Of course, however, an angular offset may alternatively be provided, the serrations are designed accordingly in this case.
- a plurality of gears may be provided, which are arranged distributed uniformly over the circumference of the adjusting. Particularly preferably, three or four gears are provided.
- a further development of the invention provides that a shaft toothing of the adjusting shaft or the toothed wheel is in engagement with the cam toothing of the valve actuating cam.
- the adjusting shaft has the shaft toothing
- the valve actuating cam has the cam toothing.
- the teeth of the gear is now engaged with both. Accordingly, a torque between the adjusting and the valve actuating cam for adjusting the angular position can be transmitted via the gear.
- the adjusting shaft is received in the basic camshaft and / or arranged coaxially with the base camshaft.
- the adjusting shaft can be arranged arbitrarily with respect to the basic camshaft.
- the base camshaft is particularly preferably designed as a hollow shaft, wherein the adjusting shaft is arranged in the cavity present in the base camshaft. This allows a particularly space-saving design of the valve train.
- the adjusting shaft is coaxial with the base camshaft.
- the active compound is preferably produced via the gear described above in the manner of a planetary gear.
- the adjusting shaft has an axis of rotation which does not coincide with the axis of rotation of the base camshaft, but rather spaced, but parallel to this.
- the recording of the adjusting shaft in the basic camshaft can be provided completely or only partially. In the latter case, at least one region of the adjusting shaft projects beyond the circumference of the basic camshaft.
- a further development of the invention provides that the adjusting shaft is operatively connected to the valve actuating cam via a holding element that passes through the basic camshaft.
- This holding element can be present for example as a sliding block or the like.
- About the retaining element of the valve actuating cam is rotatably connected to the Verstellwel- fe. Accordingly, a rotation of the adjusting shaft directly causes a change in the rotational angle position of the valve actuating cam.
- the retaining element preferably passes through the base camshaft in the radial direction. This means that the adjusting shaft is at least partially received in the basic camshaft, while the valve actuating cam is present in the radial direction outside of the basic camshaft.
- the holding element can allow an axial displacement of the adjusting shaft and the valve actuating cam to each other, so that a displacement of the valve actuating cam together with the cam carrier is additionally possible.
- a development of the invention provides that the setting of the rotation angle and the axial position takes place by means of a single actuator. It may in principle be provided that there are a plurality of separate actuators, at least one being used for the axial displacement of the cam carrier and at least one other for setting the rotational angle position. It is more advantageous, however, to use only a single actuator and / or a single shift gate for adjusting the rotational angular position and the axial position of the valve train.
- each actuator and / or each shift gate may serve to set at least two different angular positions and / or at least two axial positions.
- the rotational angle position and / or the axial position can be locked.
- the cam carrier is connected to the switching element and / or the adjusting shaft.
- the locking of the angular position and / or the axial position is realized, for example, by latching, so that for a change of rotational position and / or axial position, a force is applied, which exceeds a respective adjusting force.
- the adjusting force for the adjustment of the rotational angle position of the adjusting force for adjusting the axial position selected differently, so when applying a first, for example smaller force, only one size, upon application of a second, for example, greater force, only the other size will be changed.
- the locking can also switchable, so targeted, done. By loosening or making the lock can thus be influenced whether the rotational position or the axial position using the single actuator should be adjustable.
- the axial position is locked switchable, while the rotational angle position is not locked switchable. The setting of the angular position and the axial position is thus controlled when using the single actuator on the locking.
- FIG. 1 shows a partially sectioned view of a portion of a valve train of an internal combustion engine in a first embodiment
- FIG. 2 shows the valve drive in a second embodiment
- FIG. 3 shows the valve drive in a third embodiment
- FIG. 4 shows a fourth embodiment of the valve drive
- FIG. 5 shows the already known valve drive in a fifth embodiment
- FIG. 6 shows a sixth embodiment of the valve drive
- Figure 7 shows a seventh embodiment of the valve train
- FIG 8 shows an eighth embodiment of the valve train.
- valve drive 1 shows a partially sectioned portion of a valve train 1 of an internal combustion engine, not shown.
- the valve drive 1 consists of a base camshaft 2 and an axially displaceable on this cam carrier 3, which is only hinted at here.
- the axial direction is to be understood as meaning a direction which lies parallel to a longitudinal axis 4 or axis of rotation of the basic camshaft 2.
- the cam carrier 3 has a central recess, which is penetrated by the base camshaft 2. In the region of the recess, the cam carrier 3 has, for example, an internal toothing which cooperates with external toothing of the base camshaft 2 (not visible here) in order to hold the cam carrier 3 in a rotationally fixed but axially displaceable manner on the base camshaft 2.
- the cam carrier 3 has a plurality of valve actuation cams 5 and 6, which are assigned to a cam group 7.
- the cam carrier 3 may have at least one further cam group (not shown) with further valve actuation cams.
- the cam carrier 3 has a shift gate 8.
- the cam carrier 3 can be displaced on the base camshaft 2 in the axial direction by means of an axial adjusting device.
- the Axialstell listening includes, for example, the shift gate 8. Alternatively or additionally, the AxialstellISS nerve have a further (not shown here) switching gate.
- the valve actuation cams 5 and 6 serve to actuate gas exchange valves, not shown, of the internal combustion engine.
- the valve actuation cams 5 and 6 are eccentric, wherein the eccentricities are present in different angular positions or circumferential positions with respect to the cam carrier 3 and / or have different extensions in the radial direction and / or circumferential directions. sen.
- the valve actuation cam 5 and 6 interact, for example, with roller cam followers of the respective gas exchange valve by contact contact.
- Each of the roller rocker arms are assigned the respective valve actuation cams 5 and 6 of the corresponding cam group 7. A first of the roller rocker arms is thus actuated by one of the valve actuation cams 5 and 6 of the cam group 7 and another of the roller rocker arms by one of the valve actuation cams of a further cam group.
- valve actuation cams 5 and 6 of the cam group 7 Due to the different configurations of the valve actuation cams 5 and 6 of the cam group 7 with each other thus a corresponding stroke, opening time and / or an opening duration of the gas exchange valve thus arises.
- the roller rocker arms of the valve actuating cam 5 or 6 of the respective cam group 7 can be actuated.
- the cam carrier 3 is displaced, for example, as a function of an operating state of the internal combustion engine, so that always that valve actuating cam 5 or 6 interacts with the corresponding roller cam lever for its actuation, with which, for example, an optimum efficiency or optimal performance of the internal combustion engine can be achieved.
- the displacement of the cam carrier 3 is effected by means of an actuator not shown here, which is also part of the AxialstellISS and has a displaceable in the radial direction driver.
- the driver is displaced in the radial direction such that it engages, for example, in a slide track 9 of the shift gate 8 or in a slide track of the further shift gate.
- the slide track 9 is configured such that the switching gate 8 is urged in an insertion of the driver, while the cam carrier 3 is in a first axial position, in the direction of a second axial position and vice versa.
- a displacement of the cam carrier 3 between more than two axial positions is possible and realized by means of a correspondingly adapted shift gate 8 or AxialstellISS.
- a rotational angular position of the valve actuation cams 5 and 6 with respect to the cam carrier 3 should now additionally be adjustable.
- an adjusting device 10 is provided.
- the valve actuating cams 5 and 6 are rotatably supported. This rotatable mounting is provided in the embodiment shown here on the cam carrier 3.
- the adjusting device 10 has an axiomatic al displaceable switching element 1 on. This surrounds the base camshaft 2 and is therefore mounted axially displaceable on this.
- the switching element 1 1 is in turn partially encompassed by the valve actuating cam 5 and 6, which are made in one piece and of the same material in the embodiment shown here.
- the switching element 1 1 has a switching toothing 12, which is present as external toothing, while the valve actuating cam 5 and 6 have a cam toothing 13, which is present as internal toothing.
- the shift teeth 12 and the cam teeth 13 are designed as helical gears and are engaged with each other. This means that a rotational movement of the valve actuating cam 5 and 6 is achieved by a displacement of the switching element 1 1 in the axial direction.
- the Williamseiement 1 is operatively connected to the shift gate 8. Using the shift gate 8 so the switching element 1 1 can be displaced in the axial direction, so that the rotational movement of the valve actuating cam 5 and 6 is achieved.
- FIG. 2 shows the valve drive 1 in a second embodiment.
- the valve train 1 has an adjusting shaft 14 which is rotatable relative to the basic camshaft 2.
- the adjusting shaft 14 is arranged in the base camshaft 2 designed as a hollow shaft, wherein the base camshaft 2 and the adjusting shaft 14 are coaxial, ie have the same axis of rotation 4.
- the adjusting shaft 14 has a shaft toothing 15, which is present as an external toothing.
- valve actuation cams 5 and 6 again have the cam teeth 13 for producing the operative connection, which, however, is present here as a degree toothing.
- an adjusting mechanism 16 which has at least one gear 17 in the present embodiment.
- a plurality of gears 17 are provided, which are present in the radial direction between the adjusting shaft 14 and the valve actuating cam 5 and 6.
- the gear 17 and its toothing is engaged both with the shaft teeth 15 and the cam teeth 13.
- FIG. 3 shows a further embodiment of the valve drive 1.
- several Verstellwellen 14 for example, two, three or four, are provided.
- the adjusting shafts 14 have axes of rotation which are different from, but parallel to, the axis of rotation 4.
- the adjusting shafts 4 are arranged symmetrically with respect to the axis of rotation 4, in particular distributed uniformly over the circumference of the basic camshaft 2.
- FIG. 4 shows the valve drive 1 in a fourth embodiment.
- a single adjusting shaft 14 is provided, which is arranged such that its shaft teeth 15 can engage with the cam teeth 13. Otherwise, the valve drive 1 shown is carried out analogously to that described with reference to FIG 3.
- a fifth embodiment of the valve train 1 will be described with reference to FIG.
- the adjusting shaft 14 is also received in the base camshaft 2 and rotatably supported in this.
- a recess 18 in the base camshaft 2 which in turn is present as a hollow shaft
- the operative connection between the adjusting shaft 14 and the valve actuating cam 5 and 6 is made, for example via a holding element 19, which is present here as a sliding block.
- the retaining element 19 engages in some areas in a circumferential shape of the retaining element 19 form-fitting recess of the valve actuating cam 5 and 6 and is rotatably, but preferably axially displaceable, held on the adjusting shaft 14.
- valve actuation cams 5 and 6 are not located on the cam carrier 3, but next to it. They are either mounted on the cam carrier 3 or directly to the base camshaft 2. It can therefore be provided that by means of the cam carrier 3 only further valve actuating cam 20 and 21 a further cam group 22 are displaceable in the axial direction. In this embodiment, the valve actuating cam 5 and 6 of the cam group 7 are not displaced together with the cam carrier 3. Rather, only their angular position with respect to the base camshaft 2 and the cam carrier 3 is adjustable.
- a recess 18 by cross-holding element is provided, via which the operative connection between the adjusting shaft 14 and the valve actuating cam 5 and 6 is made.
- a bearing of the valve actuating cam 5 and 6 may be provided on the cam carrier 3, so that both the axial displacement and the setting of the angular position for the valve actuating cam 5 and 6 can be made here.
- FIG. 7 shows a seventh embodiment of the valve drive 1.
- the valve actuating cam 20 and 21 of the cam group 22 are provided.
- the basic camshaft 2 is not shown.
- the cam carrier 3 is mounted by means of a bearing 23, for example in a cylinder head housing.
- the bearing 23 holds the cam carrier 3 in the radial direction, but allows for an axial displacement along the longitudinal axis 4.
- the shift gate 8 is now formed as the only shift gate of the cam carrier 3. This means that by means of the shift gate 8 both the cam carrier 3 to be displaced in the axial direction, and the switching element 1 1 should be actuated.
- the cam carrier 3 is assigned a first locking device 24 and the switching element 11 is assigned a second locking device 25.
- the first locking device 24 consists of a latching element 26, for example a ball, which is held stationary in the axial direction.
- the latching element 26 engages in one of a plurality of latching recesses 27, which are arranged on the cam carrier 3.
- the locking element 26 is in the radial direction inwardly, ie on the longitudinal axis 4, urged. Accordingly, a certain first adjusting force is necessary for displacing the cam carrier 3 in the axial direction in order to push the latching element 26 out of the instantaneous latching recess.
- the second locking device 25 is constructed, for example, analogous to the first locking device 24 and consists of a locking element 28 and a plurality of locking recesses 29.
- the locking element 28 is attached to the cam carrier 3, the locking recesses 29 on the shift gate 8, for example.
- the locking element 28 is urged in the embodiment shown here in the radial direction to the outside, so that it engages in one of the locking recesses 29.
- With- towards the shift gate 8 can be displaced by applying a second adjusting force in the axial direction with respect to the cam carrier 3.
- the shift gate 8 is operatively connected to the switching element 1 1, so that such axial displacement also causes an axial displacement of the switching element 1 1 and in consequence a change in the rotational angle position of the valve actuating cam 5 and 6.
- first adjusting the angular position or adjusting the axial position of the cam carrier 3 takes place. Only when reaching an end position by the element, which has the smaller adjusting force, thus, the element is set, which has the greater adjusting force.
- the locking means 24 and 25, preferably both be designed switchable.
- the latching element 26 or the latching element 28 can be specifically displaced out of the respective latching recess 27 or 29, so that the respective adjusting force can be selected.
- the latching element 26 can be displaced out of the latching recess 27 in order to effect only a displacement of the cam carrier 3 during the next actuation of the shift gate 8, but no displacement of the switching element 1.
- the Rasteiement 26 may be urged in the direction of the locking recess 27, that in such an operation of the shift gate 8 no displacement of the cam carrier 3 can be done so that instead the switching element 1 1 moves and thus the desired rotational angular position of the valve actuating cam 5 and 6 is set.
- FIG. 8 shows an eighth embodiment of the valve drive 1.
- the valve actuation cams 5 and 6 or 20 and 21 of the cam groups 7 and 22 are each arranged directly adjacent to the shift gate 8.
- a further shift gate 30 is provided, which is assigned to the Axialstell thanks.
- the cam carrier 3 can be displaced in the axial direction.
- the shift gate 8 serves to adjust the rotational position of both the valve actuating cam 5 and 6 of the cam group 7 and the valve actuating cam 20 and 21 of the cam group 22.
- the shift gate 8 is mounted in the axial direction displaceable on the cam carrier 3 and has two switching elements i1 one of which is associated with the valve actuation cams 5 and 6 and another with the valve actuation cams 20 and 21.
- the cam carrier 3 is supported for example by means of bearings 23.
- the cam carrier 3 may be associated with one or more cylinders of the internal combustion engine and serve to actuate the respective valve actuation cams.
- it may have further valve actuation cams 31, 32, 33 and 34 associated with cam groups 35 and 36. These valve actuating cams 31 to 34 are fixedly attached to the cam carrier 3.
- the respective switching teeth 12 and cam teeth 13 of the valve actuating cam 5 and 6 or 20 and 21 may be designed such that a shift of the shift gate 8 with respect to the cam carrier 3 in the axial direction, a change in the rotational angular position of the respective valve actuating cam 5 and 6 or 20 and 21 in the same or opposite direction causes.
- a plurality of cam groups 7 and 22 assigned to the cam carrier 3 can thus be brought into a specific rotational angle position.
- the other shift gate 30 serves for the axial displacement of the entire cam carrier 3 together with all the valve actuation cams 5, 6, 20, 21 and 31 to 34. Basically, any number of valve actuation cams and / or cam groups can be present.
- the shift gate 8 or 30 can be configured as desired.
- they are designed to interact with a multi-pin actuator, in particular a two-pin actuator or a three-pin actuator.
- a multi-pin actuator in particular a two-pin actuator or a three-pin actuator.
- These have, in contrast to the embodiment presented here more than one driver, namely two or three, in the form of pins.
- All embodiments have in common that the angular position is always independent of the axial position adjustable. In this way, for example, an adaptation of the cylinder charge and / or the charge movement state (which are operating parameters of the rotational angular position) in at least two, but preferably more than two, different operating conditions of the internal combustion engine, in which different axial positions are possible.
- the setting of the axial position and the angular position can of course be done in any order or simultaneously.
- the basic camshaft can be operatively connected to the crankshaft via a phase adjuster, by means of which an angular position of the basic camshaft with
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210008698 DE102012008698A1 (en) | 2012-04-28 | 2012-04-28 | Valve gear of an internal combustion engine |
PCT/EP2013/001259 WO2013159937A1 (en) | 2012-04-28 | 2013-04-26 | Valve drive of an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2841723A1 true EP2841723A1 (en) | 2015-03-04 |
EP2841723B1 EP2841723B1 (en) | 2015-12-02 |
Family
ID=48468199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13723664.2A Active EP2841723B1 (en) | 2012-04-28 | 2013-04-26 | Valve drive of an internal combustion engine |
Country Status (5)
Country | Link |
---|---|
US (1) | US9228456B2 (en) |
EP (1) | EP2841723B1 (en) |
CN (1) | CN104271903B (en) |
DE (1) | DE102012008698A1 (en) |
WO (1) | WO2013159937A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013225865B4 (en) * | 2013-12-13 | 2022-12-15 | Volkswagen Aktiengesellschaft | camshaft |
US10072537B2 (en) | 2015-07-23 | 2018-09-11 | Husco Automotive Holdings Llc | Mechanical cam phasing system and methods |
DE102015009877A1 (en) * | 2015-07-29 | 2017-02-02 | Daimler Ag | Valve train device, internal combustion engine with a valve drive device and method for operating a valve drive device |
DE112016004372T5 (en) | 2015-11-06 | 2018-06-07 | Borgwarner Inc. | VALVE CONTROL SYSTEM THAT PROVIDES A VARIABLE VALVE HUB AND / OR VARIABLE VALVE TIME CONTROL |
DE102016125640A1 (en) | 2016-12-23 | 2018-06-28 | Karlsruher Institut Für Technologie (Kit) | Process for producing a metallic shaped body |
EP3351754A1 (en) | 2017-01-20 | 2018-07-25 | HUSCO Automotive Holdings LLC | Cam phasing system |
US10494961B2 (en) | 2017-06-28 | 2019-12-03 | Borgwarner Inc. | Camshaft driven pump for a hydraulic cam phaser |
USD902252S1 (en) * | 2018-06-04 | 2020-11-17 | Transportation IP Holdings, LLP | Modular cam shaft |
CN108952868B (en) * | 2018-06-19 | 2020-12-01 | 奇瑞汽车股份有限公司 | Variable camshaft and engine adopting same |
US10900387B2 (en) | 2018-12-07 | 2021-01-26 | Husco Automotive Holdings Llc | Mechanical cam phasing systems and methods |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004011586A1 (en) | 2003-03-21 | 2004-10-07 | Audi Ag | Valve gear for internal combustion engine has facility whereby in first and second axial positions of cam carrier first and second stop faces fixed on cam carrier bear against respective first and second stop faces fixed on cylinder head |
DE10349902A1 (en) * | 2003-10-25 | 2005-06-23 | Audi Ag | Valve drive for an I.C. engine comprises a camshaft with a cam piece with cams having running surfaces |
DE102005031241A1 (en) | 2005-07-01 | 2007-01-04 | Fev Motorentechnik Gmbh | Variable valve train of a piston internal combustion engine |
DE102007010151A1 (en) * | 2007-03-02 | 2008-04-24 | Audi Ag | Valve drive of internal combustion engine, has camshaft, which is supported in housing of internal combustion engine in rotating manner, and cam support in torque proof manner and axially moved on camshaft |
DE102007024600A1 (en) * | 2007-05-25 | 2008-11-27 | Schaeffler Kg | Operating device for controlling stroke variable valve gear of internal combustion engine, has latching element stressing actuator pin supporting surface by force in extending direction of pin in operating position of pin |
DE102008035935A1 (en) | 2008-07-31 | 2010-02-11 | Audi Ag | Toothed shaft connection and valve drive with toothed shaft connection between a camshaft and displaceable cam carriers |
DE102008036030A1 (en) * | 2008-08-01 | 2010-02-04 | Daimler Ag | Valve train device for use in internal-combustion engine, has set of cams arranged on set of cam elements, and bearing device rotatably mounting set of partial cams on cam elements in axial and firm manner |
DE102008060170A1 (en) * | 2008-11-27 | 2010-06-02 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Valve gear of an internal combustion engine |
DE102009014517B4 (en) * | 2009-03-23 | 2020-01-09 | Audi Ag | Valve train for gas exchange valves of an internal combustion engine with a displaceable camshaft sensor wheel |
DE102009034990A1 (en) * | 2009-07-28 | 2011-02-03 | Daimler Ag | Valve drive device |
DE102010004591B4 (en) | 2010-01-14 | 2021-08-19 | Audi Ag | Built cam carrier for valve train |
DE102010035186A1 (en) * | 2010-08-24 | 2012-03-01 | Schaeffler Technologies Gmbh & Co. Kg | Valve train for use in internal combustion engine, has actuator associated to sensors and arranged on axial region for detecting instantaneous axial positions, where actuator is exactly assigned to cam pieces |
-
2012
- 2012-04-28 DE DE201210008698 patent/DE102012008698A1/en not_active Withdrawn
-
2013
- 2013-04-26 CN CN201380022460.8A patent/CN104271903B/en active Active
- 2013-04-26 US US14/397,445 patent/US9228456B2/en active Active
- 2013-04-26 WO PCT/EP2013/001259 patent/WO2013159937A1/en active Application Filing
- 2013-04-26 EP EP13723664.2A patent/EP2841723B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2013159937A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20150122209A1 (en) | 2015-05-07 |
DE102012008698A1 (en) | 2013-10-31 |
CN104271903A (en) | 2015-01-07 |
EP2841723B1 (en) | 2015-12-02 |
CN104271903B (en) | 2016-04-27 |
WO2013159937A1 (en) | 2013-10-31 |
US9228456B2 (en) | 2016-01-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2841723B1 (en) | Valve drive of an internal combustion engine | |
DE102011002141B4 (en) | Camshaft with sliding piece having different cam profiles | |
DE102009037268B3 (en) | Variable valve drive for internal combustion engines for actuating gas exchange valves | |
EP2464833B1 (en) | Valve train for internal combustion engines for actuating gas exchange valves | |
AT520278B1 (en) | Coupling device for a valve operating device | |
EP2739830B1 (en) | Valvetrain of an internal combustion engine, an internal combustion engine, and a method for producing a corresponding valvetrain | |
EP1347154B1 (en) | Valve lift control for internal combustion engine | |
DE102006035391A1 (en) | Rotary linear actuator, linear motion shaft mechanism, variable valve actuation mechanism, and variable valve motor | |
WO2011026562A1 (en) | Valvetrain for gas exchange valves of a combustion engine with axially displaceable cam units | |
DE102010023571A1 (en) | Built camshaft | |
WO2013171321A1 (en) | Camshaft unit | |
EP2850292B1 (en) | Camshaft unit | |
DE102008039009A1 (en) | Camshaft adjuster for adjusting phasing of camshaft or crankshaft of internal combustion engine, has pre-transmission gearbox and adjustment mechanism which is formed as triple-shaft gearbox | |
EP2616644B1 (en) | Apparatus for shifting the phase of the rotary angle of a drive gear with respect to a driven gear | |
DE102011002136B4 (en) | Switchable camshaft | |
DE102014214125B4 (en) | Adjusting device for adjusting the timing of an internal combustion engine | |
DE102012001303B4 (en) | Verstellwellenbetätigung a valve train for internal combustion engines for the actuation of gas exchange valves | |
EP1608851B1 (en) | Device for the variable actuation of the gas exchange valves of internal combustion engines, and method for operating one such device | |
DE102011115788B4 (en) | Verstellwellenbetätigung a valve train for internal combustion engines for the actuation of gas exchange valves | |
AT515734B1 (en) | VALVE CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE | |
DE102015104527B4 (en) | Mechanical camshaft adjuster | |
DE102011014744B4 (en) | Mechanically controllable valve drive and mechanically controllable valve train arrangement | |
DE102018214698B4 (en) | Valve train for an internal combustion engine | |
EP2194242A1 (en) | Device for phase shifting the rotation angle of a drive wheel relative to a driven shaft | |
DE102011001612B4 (en) | Device for discrete phase shift |
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: 20141128 |
|
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 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GROSS, MICHAEL Inventor name: EL-GAML, MOAYED Inventor name: SCHRAMM, HENDRIK |
|
DAX | Request for extension of the european patent (deleted) | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 502013001569 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: F01L0013000000 Ipc: F01L0001344000 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F01L 13/00 20060101ALI20150806BHEP Ipc: F01L 1/344 20060101AFI20150806BHEP |
|
INTG | Intention to grant announced |
Effective date: 20150828 |
|
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: AT Ref legal event code: REF Ref document number: 763730 Country of ref document: AT Kind code of ref document: T Effective date: 20151215 Ref country code: CH Ref legal event code: EP |
|
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: 502013001569 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20160302 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 4 |
|
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: 20160302 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: 20151202 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: 20151202 |
|
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: 20151202 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: 20151202 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: 20151202 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: 20151202 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: 20151202 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: 20160303 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: 20151202 |
|
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: 20151202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20151202 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: 20151202 |
|
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: 20160404 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: 20151202 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160430 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: 20151202 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: 20151202 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: 20160402 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: 20151202 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502013001569 Country of ref document: DE |
|
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: 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: 20151202 |
|
26N | No opposition filed |
Effective date: 20160905 |
|
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: 20151202 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160426 |
|
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: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160430 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 5 |
|
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: 20160426 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
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: 20130426 |
|
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: 20151202 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: 20151202 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: 20151202 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: 20151202 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: 20151202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20151202 |
|
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: 20151202 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: 20151202 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 763730 Country of ref document: AT Kind code of ref document: T Effective date: 20180426 |
|
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: 20180426 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R084 Ref document number: 502013001569 Country of ref document: DE |
|
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: GB Payment date: 20240423 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240430 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20240423 Year of fee payment: 12 |