EP3688288B1 - Assembly comprising a camshaft phasing device - Google Patents

Assembly comprising a camshaft phasing device Download PDF

Info

Publication number
EP3688288B1
EP3688288B1 EP18783363.7A EP18783363A EP3688288B1 EP 3688288 B1 EP3688288 B1 EP 3688288B1 EP 18783363 A EP18783363 A EP 18783363A EP 3688288 B1 EP3688288 B1 EP 3688288B1
Authority
EP
European Patent Office
Prior art keywords
kit
actuator
pole
central valve
pole tube
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
Application number
EP18783363.7A
Other languages
German (de)
French (fr)
Other versions
EP3688288A1 (en
Inventor
Stephan Wanner
Bernhard Schatz
André Selke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eco Holding 1 GmbH
Original Assignee
Eco Holding 1 GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eco Holding 1 GmbH filed Critical Eco Holding 1 GmbH
Publication of EP3688288A1 publication Critical patent/EP3688288A1/en
Application granted granted Critical
Publication of EP3688288B1 publication Critical patent/EP3688288B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • 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
    • F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
    • 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
    • F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/3443—Solenoid driven oil control valves
    • 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
    • F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves
    • 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
    • F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34479—Sealing of phaser devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the invention relates to a kit with a camshaft adjuster, in which a pressure fluid distributing central valve is provided, and with an actuator controlling the central valve, the camshaft adjuster being driven or drivable by means of a dry-running traction drive, for example with a belt, and one rotatable in one Has stator mounted rotor.
  • Kits consisting of a camshaft adjuster and a central valve are, for example, from the DE 10 2015 214 725 A1 famous. If the camshaft adjuster is driven by means of a belt, the sealing of the camshaft adjuster and the components that are actively connected to it must be ensured.
  • the object of the present invention is to provide a kit which is improved compared to the prior art and which ensures the seal and at the same time can be produced simply and inexpensively.
  • a kit with a camshaft adjuster is proposed in which a central valve distributing a pressure fluid is provided.
  • the kit also shows that Actuator controlling the central valve, the camshaft adjuster being driven or drivable by means of a dry-running traction drive and having a rotor rotatably mounted in a stator.
  • a pressure fluid distribution space which can be filled with pressure fluid via the central valve and which is connected to an armature space of the actuator and is sealed off from the environment.
  • the actuator comprises at least one armature movable by means of a coil, a pole core and a pole tube as a pole tube assembly.
  • the pressure fluid distribution space is sealed by a material-locking and / or force-locking and form-locking connection of the actuator or one or more actuator components with the central valve.
  • Complex sealing by means of a separate sealing element can advantageously be dispensed with.
  • the sealing concept according to the invention is conceivable in designs in which the actuator is not connected to the central valve itself, but to a camshaft end or a component arranged on the camshaft end in a rotationally fixed and sealed manner.
  • the armature of the actuator can be axially displaceable in a sleeve, the sleeve being connected to the central valve in a materially bonded manner, in particular by means of welding or gluing.
  • the sleeve allows a magnetic separation of the armature and the pole tube assembly.
  • the armature can be turned inexpensively from free-cutting steel.
  • the sleeve is preferably provided as a thin, non-cutting sleeve and has a coating produced by means of plasma nitriding.
  • the very wear-resistant sliding coating enables the sleeve to be made thin without the risk that the sleeve will wear out over a very long service life or lose its wall thickness.
  • the pole tube and / or the pole core has a plurality of axial ones, preferably made of plastic, on an inner side Centering ribs made of plastic.
  • the centering ribs allow simple and effective centering of the outer actuator components.
  • An alternative embodiment of the invention provides that the pole core of the actuator is cohesively connected to the central valve, in particular by means of welding or gluing.
  • the coil and the remaining outer actuator components are radially centered on the technical unit pole tube assembly / central valve and positioned axially and positioned radially in a component fixed to the motor. This enables the simple compensation of module-specific tolerances, so that the actuator only has to have the minimum necessary stroke. As a result, a reduction in installation space can also be achieved. It is also not necessary to provide a backlash compensation for coaxial errors.
  • a particularly easy to manufacture and inexpensive embodiment of the invention provides that the pole core of the actuator is non-positively and positively connected to the central valve, in particular by means of a press fit.
  • the pole core can preferably form a preassembled pole tube assembly with the pole tube, with a non-magnetizable intermediate ring produced by means of a thermal process being provided between the pole tube and the pole core, which integrally connects the pole tube and the pole core.
  • the pole core can form a pole tube assembly with the pole tube, in which the pole tube and the pole core are provided in one piece.
  • a bobbin of the coil has a plurality of axial centering ribs made of plastic, preferably made of plastic, on an inner side.
  • the centering ribs allow simple centering and can be molded onto the coil body at low cost.
  • At least the coil with a coil body and a housing of the actuator are centered radially on the pole tube assembly by means of one or more slide bearings.
  • the slide bearing or bearings allow the gap between the pole tube assembly and the pole disks to be minimized.
  • PFTE plain bearing
  • a particularly low-wear bearing can also be achieved for high circumferential speeds.
  • An advantageous embodiment provides that a single plain bearing made of a non-ferrous base material is arranged between the coil body and the pole tube assembly. This can, for example, be encapsulated with the remaining outer actuator components.
  • the arrangements in the area of the coil body allow the gap between the pole tube assembly and the pole disks to be easily minimized without additional installation space.
  • two plain bearings made of a ferrous base material are arranged axially outside a magnetic circuit.
  • a sealing element can preferably be provided for further sealing between the camshaft adjuster, in particular between the stator and the central valve.
  • a bearing element can be provided between the camshaft adjuster, in particular between the stator and the central valve.
  • Fig. 1 shows a first embodiment of a kit 1 with a basically known camshaft adjuster 2, in which a pressure fluid distributing central valve 3 is provided.
  • the camshaft adjuster 2 is used to adjust an in Fig. 1 not shown camshaft formed.
  • the central valve 3 has a piston 10 which is axially movable in a valve housing 11 and which with the aid of an electromagnetic actuator 4 is moved.
  • Several working connections are provided in the valve housing 11 for the hydraulic supply of the camshaft adjuster 2.
  • the central valve 3 and the actuator 4 are in Fig. 1 only partially and schematically formed. Details are accordingly Fig. 2 can be seen which shows a further embodiment of the kit 1.
  • the camshaft adjuster 2 allows a change in the opening and closing times of gas exchange valves of the internal combustion engine to be brought about during the operation of an internal combustion engine that includes a cylinder head and is not shown in detail.
  • a relative angular position of a camshaft (not shown) of the internal combustion engine rotatably received in the cylinder head compared to a crankshaft (not shown) of the internal combustion engine is continuously changed, the camshaft being rotated relative to the crankshaft.
  • the opening and closing times of the gas exchange valves are shifted so that the internal combustion engine can achieve its optimum performance at the respective speed.
  • the camshaft adjuster 2 is driven or drivable by means of a dry-running traction mechanism drive, for example with a belt, and for this purpose has a stator 5 that is non-rotatably connected to a belt wheel 12 as a drive wheel.
  • the belt pulley 12 is guided over the belt as a drive element.
  • the stator 5 is drive-connected to the crankshaft in a known manner via the belt and the belt pulley 12.
  • the stator 5 and the belt pulley 12 can consist of separate components or can be formed in one piece.
  • the belt pulley 12 can form, for example, a cylindrical stator base body and a cover.
  • each space can be divided into two pressure chambers.
  • a pressure medium generally a hydraulic fluid, is introduced into these sub-spaces in a controlled manner with the aid of the central valve 3.
  • a pressure chamber is assigned to each working connection.
  • the first pressure chamber is assigned to the first working connection and the second pressure chamber is assigned to the second working connection.
  • the rotor is rotated relative to the stator.
  • hydraulic fluid is fed into the pressure chambers depending on the desired direction of rotation, while the other pressure chambers are relieved towards a tank.
  • a first working connection is pressurized by the central valve and a second working connection is relieved.
  • the central valve pressurizes the second working connection and relieves the first working connection. The discharge takes place via at least one tank connection, the hydraulic fluid being able to flow off via this tank connection.
  • the piston 10 of the central valve 3 is moved with the aid of a tappet 15 of the actuator 4, which is fixed in an armature 16 and can be axially displaced with the armature 16 along a longitudinal axis of the actuator 4.
  • the actuator 4 comprises an in Fig. 1 Pole tube assembly 17, not shown, which is arranged within a cylindrical, magnetic field-generating coil 18, and a housing 19 which is fastened directly or with the aid of an adapter in a component 20 fixed to the engine, such as a cylinder head. Together with pole disks 31, 32, the coil 18 and the pole tube assembly 17 form a magnetic circuit. One or both pole disks 31, 32 can be formed in one piece with the housing 19. It is also conceivable to encapsulate the housing 19 and the pole disks 31, 32 and the coil 18 with an additional plastic housing.
  • the coil 18 is received in a coil body 21 made of plastic, which at least partially surrounds the pole tube assembly.
  • the armature 16 is provided in a sleeve 22 so as to be axially displaceable.
  • the sleeve 22 is preferably provided as a thin, non-cutting sleeve and has, for example, a coating produced by means of plasma nitriding.
  • the armature 16 can be turned inexpensively from free-cutting steel.
  • the very wear-resistant sliding coating enables the sleeve 22 to be made thin without the risk that the sleeve 22 will wear out over a very long service life or lose its wall thickness.
  • a pressure fluid distribution space 7 which can be filled with pressure fluid via the central valve 3 and which is connected to an armature space 8 of the actuator 4.
  • the pressure fluid distribution space 7 is provided within the valve housing 11 and extends between the piston 10 and the armature space 8.
  • the pressure fluid distribution space 7 is sealed off from the environment in order to keep the belt drive area free of hydraulic fluid / pressure fluid and thus ensure the drive is operationally reliable.
  • the first exemplary embodiment provides for the sealing of the pressure fluid distribution space 7 by means of a material connection of the actuator 4 or one or more actuator components with the central valve 3 or a central valve component.
  • a material connection of the actuator 4 to the central valve 3 a circumferential collar 23 of the sleeve 22 is tightly welded or glued to an axial end face 24 of the valve housing 11.
  • Laser welding for example, can be used as a welding process.
  • the sleeve 22 is thus embodied in a rotationally fixed manner with the central valve 3 and thus with the camshaft 9.
  • the sleeve 22, which is integrally connected to the valve housing 11, is rotatably supported by the connection in the pole tube assembly 17 (not shown), which can be formed in one piece or in several parts and which, like the remaining external components of the actuator 4, is statically attached to the motor-fixed component 20.
  • axial centering ribs made of plastic, evenly distributed over the circumference, can be injection-molded onto an inside of the pole tube assembly. These enable exact alignment and centering during the assembly of the remaining actuator components (coil 18, pole tube assembly 17, housing 19) and ensure that the necessary small air gap is maintained. Separate sealing elements and a process-intensive production of sealing surfaces between the actuator 4 and the camshaft adjuster 2 can thus be dispensed with.
  • part of the pole tube assembly 17, in particular a pole core can be connected to the end face 24 of the central valve 3 in a materially bonded manner, in particular by means of welding or gluing.
  • a sealing element 25 can be provided between the stator 5 and the central valve 3 for further sealing.
  • a bearing by means of a suitable bearing 26 can be provided between the stator 5 and the central valve 3.
  • the embodiment shown differs from the first embodiment according to FIG Fig. 1 in that the actuator 4 has no sleeve and the armature 16 in this case is mounted displaceably in the pole tube assembly 17.
  • the pressure fluid distribution space 7 which can be filled with pressure fluid via the central valve 3 and which is connected to an armature space 8 of the actuator 4.
  • the pressure fluid distribution space 7 is provided within a pole core 27 of the pole tube assembly 17 and extends between the piston 10 of the central valve 3 and the armature space 8.
  • the pressure fluid distribution space 7 is also sealed off from the environment in this exemplary embodiment in order to keep the belt drive area free of hydraulic fluid / pressure fluid and thus to ensure the drive is operationally safe.
  • the pole core 27 of the actuator 4 is non-positively and positively locked, in particular by means of a press fit with the central valve 3, ie connected to the valve housing 11 in a rotationally fixed manner.
  • the pole tube assembly 17 comprises the pole core 27, a pole tube 28 and a base 29 which is tightly connected to the pole tube 28.
  • a non-magnetizable intermediate ring 30 produced by means of a thermal process can be provided between the pole tube 28 and the pole core 27, which connects the pole tube 28 and the pole core 27 in a materially bonded manner.
  • the pole tube assembly 17, which is positively and non-positively connected to the valve housing 11, is rotatably supported by the connection in that of the coil 18, i.e. in its bobbin 21, which like the housing 19 and the pole disks 31, 32 are statically attached to the component 20 fixed to the motor.
  • axial centering ribs 36 made of plastic are injection-molded on an inside of the bobbin 21, evenly distributed over the circumference. These enable exact alignment and centering during the assembly of the remaining actuator components (coil 18, coil body 21, housing 19) and ensure that the necessary small air gap is maintained. Separate sealing elements and a process-intensive production of sealing surfaces between the actuator 4 and the camshaft adjuster 2 can thus be dispensed with.
  • the housing 19 of the actuator 4 which, as already described, can be overmolded by means of an additional plastic housing, is also fastened in this exemplary embodiment directly or with the aid of an adapter in a component 20 fixed to the engine, such as a cylinder head.
  • Fig. 6 shows a section of a third exemplary embodiment of a kit 1 according to the invention, in which, similar to the previous exemplary embodiment, the pole core 27 of the pole tube assembly 17 is connected to the central valve 3, not shown, in a rotationally fixed manner.
  • the pole tube assembly 17 is designed in one piece here and forms a technical unit with the central valve 3.
  • the remaining External components of the magnetic circuit coil 18, coil body 21, housing 19 and pole disks 31, 32 are statically fastened directly or with the aid of an adapter in the engine-fixed component 20 such as a cylinder head.
  • the coil 18 with its coil body 21, the pole disks 31, 32 and the housing 19 of the actuator 4 are radially centered on the pole tube assembly 17 by means of a sliding bearing 33 and axially fixed with minimal play.
  • the plain bearing 33 is made of a non-ferrous base material (e.g. bronze) with PTFE and can preferably be overmolded with the remaining components.
  • two plain bearings 34, 35 made of a ferrous base material are arranged axially outside the magnetic circuit. That is, the two slide bearings 34, 35 are each axially adjacent to the pole disks 31, 32 outside the magnetic circuit.
  • the sealing concept according to the invention is also conceivable in embodiments not shown, in which the sleeve 22 or the pole core 27 is not rotatably attached to the central valve 3 itself, but to a camshaft end or a component arranged on the camshaft end as described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Description

Die Erfindung betrifft einen Bausatz mit einem Nockenwellenversteller, in dem ein ein Druckfluid verteilendes Zentralventil vorgesehen ist, und mit einem das Zentralventil steuernden Aktuator, wobei der Nockenwellenversteller mittels eines trocken laufenden Zugmitteltriebes, etwa mit einem Riemen, angetrieben oder antreibbar ist und einen drehbar in einem Stator gelagerten Rotor aufweist.The invention relates to a kit with a camshaft adjuster, in which a pressure fluid distributing central valve is provided, and with an actuator controlling the central valve, the camshaft adjuster being driven or drivable by means of a dry-running traction drive, for example with a belt, and one rotatable in one Has stator mounted rotor.

Bausätze bestehend aus einem Nockenwellenversteller und einem Zentralventil sind beispielsweise aus der DE 10 2015 214 725 A1 bekannt. Ist der Nockenwellenversteller mittels eines Riemen angetrieben, ist die Abdichtung des Nockenwellenverstellers und den damit wirkverbundenen Bauteilen sicherzustellen.Kits consisting of a camshaft adjuster and a central valve are, for example, from the DE 10 2015 214 725 A1 famous. If the camshaft adjuster is driven by means of a belt, the sealing of the camshaft adjuster and the components that are actively connected to it must be ensured.

Die Aufgabe der vorliegenden Erfindung ist es, einen im Vergleich zum Stand der Technik verbesserten Bausatz bereitzustellen, welcher die Abdichtung gewährleistet und gleichzeitig einfach und kostengünstig herstellbar ist.The object of the present invention is to provide a kit which is improved compared to the prior art and which ensures the seal and at the same time can be produced simply and inexpensively.

Die Aufgabe wird erfindungsgemäß durch einen Bausatz mit den Merkmalen das Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen und nichttrivialen Weiterbildungen der Erfindung sind in den jeweiligen Unteransprüchen angegeben.The object is achieved according to the invention by a kit having the features of claim 1. Advantageous refinements with expedient and nontrivial developments of the invention are specified in the respective subclaims.

Es wird ein Bausatz mit einem Nockenwellenversteller vorgeschlagen, in dem ein ein Druckfluid verteilendes Zentralventil vorgesehen ist. Weiter weist der Bausatz einen das Zentralventil steuernden Aktuator auf, wobei der Nockenwellenversteller mittels eines trocken laufenden Zugmitteltriebes angetrieben oder antreibbar ist und einen drehbar in einem Stator gelagerten Rotor aufweist. Zwischen dem Nockenwellenversteller und dem Aktuator ist ein über das Zentralventil mit Druckfluid befüllbarer Druckfluidverteilraum vorgesehen, der mit einem Ankerraum des Aktuators in Verbindung steht und zur Umgebung hin abgedichtet ist. Der Aktuator umfasst wenigstens einen mittels einer Spule bewegbaren Anker, einen Polkern und ein Polrohr als Polrohrbaugruppe.A kit with a camshaft adjuster is proposed in which a central valve distributing a pressure fluid is provided. The kit also shows that Actuator controlling the central valve, the camshaft adjuster being driven or drivable by means of a dry-running traction drive and having a rotor rotatably mounted in a stator. Between the camshaft adjuster and the actuator there is provided a pressure fluid distribution space which can be filled with pressure fluid via the central valve and which is connected to an armature space of the actuator and is sealed off from the environment. The actuator comprises at least one armature movable by means of a coil, a pole core and a pole tube as a pole tube assembly.

Erfindungsgemäß erfolgt die Abdichtung des Druckfluidverteilraums durch eine stoffschlüssige und/oder kraft- und formschlüssige Verbindung des Aktuators bzw. eines oder mehrerer Aktuatorbauteile mit dem Zentralventil. Eine aufwendige Abdichtung mittels eines separaten Dichtelement kann vorteilhafterweise entfallen.According to the invention, the pressure fluid distribution space is sealed by a material-locking and / or force-locking and form-locking connection of the actuator or one or more actuator components with the central valve. Complex sealing by means of a separate sealing element can advantageously be dispensed with.

Grundsätzlich ist das erfindungsgemäße Abdichtungskonzept bei Ausführungen denkbar, bei welchen der Aktuator nicht an dem Zentralventil selbst, sondern mit einem Nockenwellenende oder einem an dem Nockenwellenende angeordneten Bauteil drehfest und abgedichtet verbunden wird.In principle, the sealing concept according to the invention is conceivable in designs in which the actuator is not connected to the central valve itself, but to a camshaft end or a component arranged on the camshaft end in a rotationally fixed and sealed manner.

Gemäß einer vorteilhaften Ausführung der Erfindung kann der Anker des Aktuators in einer Hülse axialverschieblich sein, wobei die Hülse stoffschlüssig, insbesondere mittels Schweißen oder Kleben mit dem Zentralventil verbunden ist. Die Hülse erlaubt eine magnetische Trennung von Anker und Polrohrbaugruppe. Der Anker kann kostengünstig aus Automatenstahl gedreht sein.According to an advantageous embodiment of the invention, the armature of the actuator can be axially displaceable in a sleeve, the sleeve being connected to the central valve in a materially bonded manner, in particular by means of welding or gluing. The sleeve allows a magnetic separation of the armature and the pole tube assembly. The armature can be turned inexpensively from free-cutting steel.

Vorzugsweise ist die Hülse als spanlos dünn gefertigte Hülse vorgesehen und weist eine mittels Plasmanitrieren hergestellte Beschichtung auf. Die sehr verschleißbeständige Gleitbeschichtung ermöglicht es, die Hülse dünn zu fertigen, ohne dass die Gefahr besteht, dass die Hülse über eine sehr lange Lebensdauer verschleißt bzw. an Wandstärke verliert.The sleeve is preferably provided as a thin, non-cutting sleeve and has a coating produced by means of plasma nitriding. The very wear-resistant sliding coating enables the sleeve to be made thin without the risk that the sleeve will wear out over a very long service life or lose its wall thickness.

Gemäß einer weiteren vorteilhaften Ausführung weist das Polrohr und/oder der Polkern auf einer Innenseite mehrere axiale, vorzugsweise aus Kunststoff angespritzte Zentrierrippen aus Kunststoff auf. Die Zentrierrippen erlauben eine einfache und effektive Zentrierung der äußeren Aktuatorbauteile.According to a further advantageous embodiment, the pole tube and / or the pole core has a plurality of axial ones, preferably made of plastic, on an inner side Centering ribs made of plastic. The centering ribs allow simple and effective centering of the outer actuator components.

Eine alternative Ausführungsform der Erfindung sieht vor, dass der Polkern des Aktuators stoffschlüssig, insbesondere mittels Schweißen oder Kleben mit dem Zentralventil verbunden ist. Die Spule und die restlichen äußeren Aktuatorbauteile werden auf der technischen Einheit Polrohrbaugruppe/Zentralventil radial zentriert und axial positioniert sowie radial in einem motorfesten Bauteil positioniert.
Dies ermöglicht den einfachen Ausgleich von baugruppenspezifischen Toleranzen, wodurch der Aktuator lediglich den minimalen notwendigen Hub aufweisen muss. Dadurch kann zusätzlich eine Bauraumreduzierung erzielt werden.
Ebenso ist es nicht notwendig, einen Spielausgleich für Koaxialfehler vorzusehen.An alternative embodiment of the invention provides that the pole core of the actuator is cohesively connected to the central valve, in particular by means of welding or gluing. The coil and the remaining outer actuator components are radially centered on the technical unit pole tube assembly / central valve and positioned axially and positioned radially in a component fixed to the motor.
This enables the simple compensation of module-specific tolerances, so that the actuator only has to have the minimum necessary stroke. As a result, a reduction in installation space can also be achieved.
It is also not necessary to provide a backlash compensation for coaxial errors.

Eine besonders einfach herstellbare und kostengünstige Ausgestaltung der Erfindung sieht vor, dass der Polkern des Aktuators kraft- und formschlüssig, insbesondere mittels einer Presspassung mit dem Zentralventil verbunden ist.A particularly easy to manufacture and inexpensive embodiment of the invention provides that the pole core of the actuator is non-positively and positively connected to the central valve, in particular by means of a press fit.

Dabei kann der Polkern mit dem Polrohr vorzugsweise eine vormontierbare Polrohrbaugruppe bilden, wobei zwischen dem Polrohr und dem Polkern ein nicht-magnetisierbarer, mittels eines thermischen Verfahrens hergestellter Zwischenring vorgesehen ist, welcher Polrohr und Polkern stoffschlüssig verbindet. Alternativ kann der Polkern mit dem Polrohr eine Polrohrbaugruppe bilden, bei welcher das Polrohr und der Polkern einteilig vorgesehen sind.The pole core can preferably form a preassembled pole tube assembly with the pole tube, with a non-magnetizable intermediate ring produced by means of a thermal process being provided between the pole tube and the pole core, which integrally connects the pole tube and the pole core. Alternatively, the pole core can form a pole tube assembly with the pole tube, in which the pole tube and the pole core are provided in one piece.

Gemäß einer vorteilhaften Ausführung der Erfindung weist ein Spulenkörper der Spule auf einer Innenseite mehrere axiale, vorzugsweise aus Kunststoff angespritzte Zentrierrippen aus Kunststoff auf. Die Zentrierrippen erlauben eine einfache Zentrierung und sind kostengünstig an den Spulenkörper anformbar.According to an advantageous embodiment of the invention, a bobbin of the coil has a plurality of axial centering ribs made of plastic, preferably made of plastic, on an inner side. The centering ribs allow simple centering and can be molded onto the coil body at low cost.

Gemäß einer anderen vorteilhaften Ausführung der Erfindung sind wenigstens die Spule mit einem Spulenkörper sowie ein Gehäuse des Aktuators mittels eines oder mehrerer Gleitlager auf der Polrohrbaugruppe radial zentriert. Das oder die Gleitlager erlauben eine Minimierung der Spalte zwischen Polrohrbaugruppe und Polscheiben. Weist das bzw. die Gleitlager als zusätzlichen Werkstoff PFTE auf, kann eine besonders verschleißarme Lagerung auch für hohe Umfangsgeschwindigkeiten erzielt werden. Eine vorteilhafte Ausführung sieht vor, dass ein einziges Gleitlager aus einem nicht eisenhaltigen Grundwerkstoff zwischen dem Spulenkörper und der Polrohrbaugruppe angeordnet ist. Dieses kann beispielsweise mit den restlichen äußeren Aktuatorbauteilen umspritzt werden. Die Anordnungen im Bereich des Spulenkörpers erlaubt eine einfache Minimierung der Spalte zwischen Polrohrbaugruppe und Polscheiben ohne zusätzlichen Bauraum.According to another advantageous embodiment of the invention, at least the coil with a coil body and a housing of the actuator are centered radially on the pole tube assembly by means of one or more slide bearings. The slide bearing or bearings allow the gap between the pole tube assembly and the pole disks to be minimized. Know that or the plain bearings as an additional material PFTE, a particularly low-wear bearing can also be achieved for high circumferential speeds. An advantageous embodiment provides that a single plain bearing made of a non-ferrous base material is arranged between the coil body and the pole tube assembly. This can, for example, be encapsulated with the remaining outer actuator components. The arrangements in the area of the coil body allow the gap between the pole tube assembly and the pole disks to be easily minimized without additional installation space.

Gemäß einer alternativen vorteilhaften Ausführung sind zwei Gleitlager aus einem eisenhaltigen Grundwerkstoff axial außerhalb eines Magnetkreises angeordnet. Vorzugsweise kann zur weiteren Abdichtung zwischen dem Nockenwellenversteller, insbesondere zwischen dem Stator und dem Zentralventil ein Dichtungselement vorgesehen sein.According to an alternative advantageous embodiment, two plain bearings made of a ferrous base material are arranged axially outside a magnetic circuit. A sealing element can preferably be provided for further sealing between the camshaft adjuster, in particular between the stator and the central valve.

Gemäß einer vorteilhaften Ausführung kann zwischen dem Nockenwellenversteller, insbesondere zwischen dem Stator und dem Zentralventil ein Lagerungselement vorgesehen sein.According to an advantageous embodiment, a bearing element can be provided between the camshaft adjuster, in particular between the stator and the central valve.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von bevorzugten Ausführungsbeispielen sowie anhand der Zeichnung.Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and on the basis of the drawing.

In der Zeichnung zeigen:

Figur 1
in schematischer Darstellung einen Ausschnitt eines ersten Ausführungsbeispiels eines erfindungsgemäßen Bausatzes im Längsschnitt;
Figur 2
in schematischer Darstellung einen Ausschnitt eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Bausatzes im Längsschnitt;
Figur 3
eine Zentralventil/Aktuator-Baugruppe des Bausatzes gemäß Fig. 2 im Längsschnitt;
Figur 4
einen Querschnitt A-A der Zentralventil/Aktuator-Baugruppe des Bausatzes gemäß Fig. 2;
Figur 5
einen vergrößerten Ausschnitt X des Querschnitts A-A gemäß Fig. 4;
Figur 6
einen Ausschnitt eines dritten Ausführungsbeispiels eines erfindungsgemäßen Bausatzes im Längsschnitt und
Figur 7
einen Ausschnitt eines vierten Ausführungsbeispiels eines erfindungsgemäßen Bausatzes im Längsschnitt.
In the drawing show:
Figure 1
in a schematic representation a detail of a first embodiment of a kit according to the invention in longitudinal section;
Figure 2
in a schematic representation a detail of a second embodiment of a kit according to the invention in longitudinal section;
Figure 3
a central valve / actuator assembly of the kit according to Fig. 2 in longitudinal section;
Figure 4
a cross section AA of the central valve / actuator assembly of the kit according to Fig. 2 ;
Figure 5
an enlarged detail X of the cross section AA according to Fig. 4 ;
Figure 6
a section of a third embodiment of a kit according to the invention in longitudinal section and
Figure 7
a section of a fourth embodiment of a kit according to the invention in longitudinal section.

Fig. 1 zeigt ein erstes Ausführungsbeispiel eines Bausatzes 1 mit einem grundsätzlich bekannten Nockenwellenversteller 2, in dem ein ein Druckfluid verteilendes Zentralventil 3 vorgesehen ist. Fig. 1 shows a first embodiment of a kit 1 with a basically known camshaft adjuster 2, in which a pressure fluid distributing central valve 3 is provided.

Der Nockenwellenversteller 2 ist zur Verstellung einer in Fig. 1 nicht dargestellten Nockenwelle ausgebildet. Das Zentralventil 3 weist einen, in einem Ventilgehäuse 11 axial bewegbaren Kolben 10 auf, welcher mit Hilfe eines elektromagnetischen Aktuators 4 bewegt wird. Zur hydraulischen Versorgung des Nockenwellenverstellers 2 sind mehrere Arbeitsanschlüsse im Ventilgehäuse 11 vorgesehen.
Das Zentralventil 3 und der Aktuator 4 sind in Fig. 1 nur teilweise und schematisch ausgebildet. Details sind entsprechend Fig. 2 zu entnehmen, welche ein weiteres Ausführungsbeispiel des Bausatzes 1 zeigt.The camshaft adjuster 2 is used to adjust an in Fig. 1 not shown camshaft formed. The central valve 3 has a piston 10 which is axially movable in a valve housing 11 and which with the aid of an electromagnetic actuator 4 is moved. Several working connections are provided in the valve housing 11 for the hydraulic supply of the camshaft adjuster 2.
The central valve 3 and the actuator 4 are in Fig. 1 only partially and schematically formed. Details are accordingly Fig. 2 can be seen which shows a further embodiment of the kit 1.

Der Nockenwellenversteller 2 erlaubt während des Betriebes eines einen Zylinderkopf umfassenden, nicht näher dargestellten Verbrennungsmotors eine Änderung von Öffnungs- und Schließzeiten von Gaswechselventilen des Verbrennungsmotors herbeizuführen. Hierzu wird mit Hilfe des Nockenwellenverstellers 2 eine relative Winkellage einer im Zylinderkopf drehbar aufgenommenen, nicht näher dargestellten Nockenwelle des Verbrennungsmotors gegenüber einer nicht näher dargestellten Kurbelwelle des Verbrennungsmotors stufenlos verändert, wobei die Nockenwelle relativ zur Kurbelwelle verdreht wird. Durch Verdrehen der Nockenwelle werden die Öffnungs- und Schließzeitpunkte der Gaswechselventile so verschoben, dass der Verbrennungsmotor bei der jeweiligen Drehzahl seine optimale Leistung erbringen kann.
Der Nockenwellenversteller 2 ist mittels eines trocken laufenden Zugmitteltriebes, etwa mit einem Riemen, angetrieben oder antreibbar und weist hierzu einen mit einem Riemenrad 12 als Antriebsrad drehfest verbundenen Stator 5 auf. Das Riemenrad 12 ist dabei über den Riemen als Antriebselement geführt. Über den Riemen und das Riemenrad 12 ist der Stator 5 in bekannter Weise mit der Kurbelwelle antriebsverbunden. Der Stator 5 und das Riemenrad 12 können aus separaten Bauteilen bestehen oder einstückig ausgebildet sein. Das Riemenrad 12 kann beispielsweise einen zylindrischen Statorgrundkörper und einen Deckel bilden.The camshaft adjuster 2 allows a change in the opening and closing times of gas exchange valves of the internal combustion engine to be brought about during the operation of an internal combustion engine that includes a cylinder head and is not shown in detail. For this purpose, with the help of the camshaft adjuster 2, a relative angular position of a camshaft (not shown) of the internal combustion engine rotatably received in the cylinder head compared to a crankshaft (not shown) of the internal combustion engine is continuously changed, the camshaft being rotated relative to the crankshaft. By turning the camshaft, the opening and closing times of the gas exchange valves are shifted so that the internal combustion engine can achieve its optimum performance at the respective speed.
The camshaft adjuster 2 is driven or drivable by means of a dry-running traction mechanism drive, for example with a belt, and for this purpose has a stator 5 that is non-rotatably connected to a belt wheel 12 as a drive wheel. The belt pulley 12 is guided over the belt as a drive element. The stator 5 is drive-connected to the crankshaft in a known manner via the belt and the belt pulley 12. The stator 5 and the belt pulley 12 can consist of separate components or can be formed in one piece. The belt pulley 12 can form, for example, a cylindrical stator base body and a cover.

An Innenseiten des Stators 5 bzw. des Statorgrundkörpers 13 sind sich radial nach innen erstreckende Stege in regelmäßigen Abständen ausgebildet, derart, dass zwischen jeweils zwei benachbarten Stegen ein Zwischenraum gebildet ist. In den Zwischenraum hineinragend ist ein Flügel 14 einer Rotornabe eines drehbar im Stator 5 gelagerten Rotors 6 des Nockenwellenverstellers 2 angeordnet. Der Anzahl der Zwischenräume entsprechend weist die Rotornabe eine Anzahl von Flügel 14 auf. Somit ist mit Hilfe der Flügel jeder Zwischenraum in zwei Druckkammern teilbar. In diese Teilräume wird ein Druckmedium, im Allgemeinen ein Hydraulikfluid, mit Hilfe des Zentralventils 3 gesteuert eingebracht.On the inside of the stator 5 or the stator base body 13, webs extending radially inward are formed at regular intervals, such that an intermediate space is formed between each two adjacent webs. A wing 14 of a rotor hub of a rotor 6 of the camshaft adjuster 2 rotatably mounted in the stator 5 is arranged protruding into the intermediate space. The rotor hub has a number of vanes 14 corresponding to the number of gaps. Thus, with the help of the wings, each space can be divided into two pressure chambers. In A pressure medium, generally a hydraulic fluid, is introduced into these sub-spaces in a controlled manner with the aid of the central valve 3.

Jedem Arbeitsanschluss ist eine Druckkammer zugeordnet. So ist dem ersten Arbeitsanschluss die erste Druckkammer und dem zweiten Arbeitsanschluss die zweite Druckkammer zugeordnet. Um die Winkellage zwischenA pressure chamber is assigned to each working connection. The first pressure chamber is assigned to the first working connection and the second pressure chamber is assigned to the second working connection. To the angular position between

der Nockenwelle und dem Antriebsrad und damit der Kurbelwelle zu verändern, wird der Rotor relativ zum Stator gedreht. Hierzu wird je nach gewünschter Drehrichtung Hydraulikfluid in die Druckkammern eingespeist, während die jeweils anderen Druckkammern zu einem Tank hin entlastet werden. Um den Rotor gegenüber dem Stator entgegen dem Uhrzeigersinn zu verschwenken, wird vom Zentralventil ein erster Arbeitsanschluss unter Druck gesetzt und ein zweiter Arbeitsanschluss entlastet. Um den Rotor hingegen im Uhrzeigersinn zu verschwenken, wird vom Zentralventil der zweite Arbeitsanschluss unter Druck gesetzt und der erste Arbeitsanschluss entlastet. Die Entlastung erfolgt über zumindest einen Tankanschluss, wobei über diesen Tankanschluss das Hydraulikfluid abfließen kann.To change the camshaft and the drive wheel and thus the crankshaft, the rotor is rotated relative to the stator. For this purpose, hydraulic fluid is fed into the pressure chambers depending on the desired direction of rotation, while the other pressure chambers are relieved towards a tank. In order to pivot the rotor counterclockwise with respect to the stator, a first working connection is pressurized by the central valve and a second working connection is relieved. In contrast, in order to pivot the rotor clockwise, the central valve pressurizes the second working connection and relieves the first working connection. The discharge takes place via at least one tank connection, the hydraulic fluid being able to flow off via this tank connection.

Der Kolben 10 des Zentralventils 3 wird mit Hilfe eines Stößels 15 des Aktuators 4 bewegt, der in einem Anker 16 fixiert und mit dem Anker 16 entlang einer Längsachse des Aktuators 4 axial verschiebbar ist.The piston 10 of the central valve 3 is moved with the aid of a tappet 15 of the actuator 4, which is fixed in an armature 16 and can be axially displaced with the armature 16 along a longitudinal axis of the actuator 4.

Der Aktuator 4 umfasst eine in Fig. 1 nicht dargestellte Polrohrbaugruppe 17, die innerhalb einer zylinderförmig ausgebildeten, ein Magnetfeld erzeugenden Spule 18 angeordnet ist, sowie ein Gehäuse 19, welches direkt oder mit Hilfe eines Adapters in einem motorfesten Bauteil 20 wie einem Zylinderkopf befestigt ist. Zusammen mit Polscheiben 31, 32 bilden die Spule 18 und der Polrohrbaugruppe 17 einen Magnetkreis. Eine oder beide Polscheiben 31, 32 können einteilig mit dem Gehäuse 19 ausgebildet sein. Ebenso ist es denkbar, das Gehäuse 19 und die Polscheiben 31, 32 und die Spule 18 mit einem zusätzlichen Kunststoffgehäuse zu umspritzen.The actuator 4 comprises an in Fig. 1 Pole tube assembly 17, not shown, which is arranged within a cylindrical, magnetic field-generating coil 18, and a housing 19 which is fastened directly or with the aid of an adapter in a component 20 fixed to the engine, such as a cylinder head. Together with pole disks 31, 32, the coil 18 and the pole tube assembly 17 form a magnetic circuit. One or both pole disks 31, 32 can be formed in one piece with the housing 19. It is also conceivable to encapsulate the housing 19 and the pole disks 31, 32 and the coil 18 with an additional plastic housing.

Die Spule 18 ist in einem Spulenkörper 21 aus Kunststoff aufgenommen, welcher die Polrohrbaugruppe wenigstens teilweise umfasst.The coil 18 is received in a coil body 21 made of plastic, which at least partially surrounds the pole tube assembly.

Im ersten, in Fig. 1 gezeigten Ausführungsbeispiel ist der Anker 16 in einer Hülse 22 axialverschieblich vorgesehen. Die Hülse 22 ist zur magnetischen Trennung von Anker 16 und Polrohrbaugruppe 17 vorzugsweise als spanlos dünn gefertigte Hülse vorgesehen und weist beispielsweise eine mittels Plasmanitrieren hergestellte Beschichtung auf. Der Anker 16 kann kostengünstig aus Automatenstahl gedreht sein. Die sehr verschleißbeständige Gleitbeschichtung ermöglicht es, die Hülse 22 dünn zu fertigen, ohne dass die Gefahr besteht, dass die Hülse 22 über eine sehr lange Lebensdauer verschleißt bzw. an Wandstärke verliert.In the first, in Fig. 1 The embodiment shown, the armature 16 is provided in a sleeve 22 so as to be axially displaceable. For the magnetic separation of armature 16 and pole tube assembly 17, the sleeve 22 is preferably provided as a thin, non-cutting sleeve and has, for example, a coating produced by means of plasma nitriding. The armature 16 can be turned inexpensively from free-cutting steel. The very wear-resistant sliding coating enables the sleeve 22 to be made thin without the risk that the sleeve 22 will wear out over a very long service life or lose its wall thickness.

Zwischen dem Nockenwellenversteller 2 und dem Aktuator 4 ist ein über das Zentralventil 3 mit Druckfluid befüllbarer Druckfluidverteilraum 7 vorhanden, der mit einem Ankerraum 8 des Aktuators 4 in Verbindung steht. Wie ersichtlich ist der Druckfluidverteilraum 7 innerhalb des Ventilgehäuses 11 vorgesehen und erstreckt sich zwischen dem Kolben 10 und dem Ankerraum 8. Der Druckfluidverteilraum 7 ist zur Umgebung hin abgedichtet, um den Riemenantriebsbereich frei von Hydraulikfluid/Druckfluid zu halten und damit den Antrieb betriebssicher zu gewährleisten.Between the camshaft adjuster 2 and the actuator 4 there is a pressure fluid distribution space 7 which can be filled with pressure fluid via the central valve 3 and which is connected to an armature space 8 of the actuator 4. As can be seen, the pressure fluid distribution space 7 is provided within the valve housing 11 and extends between the piston 10 and the armature space 8. The pressure fluid distribution space 7 is sealed off from the environment in order to keep the belt drive area free of hydraulic fluid / pressure fluid and thus ensure the drive is operationally reliable.

Das erste Ausführungsbeispiel sieht hierzu vor, die Abdichtung des Druckfluidverteilraums 7 durch eine stoffschlüssige Verbindung des Aktuators 4 bzw. eines oder mehrerer Aktuatorbauteile mit dem Zentralventil 3 bzw. eines Zentralventilbauteils herzustellen.
Wie aus Fig. 1 hervorgeht, ist zur stoffschlüssigen Verbindung des Aktuators 4 mit dem Zentralventil 3 ein umlaufender Bund 23 der Hülse 22 mit einer axialen Stirnfläche 24 des Ventilgehäuses 11 dicht verschweißt oder verklebt. Als Schweißverfahren kommt beispielsweise Laserschweißen in Frage. Die Hülse 22 ist damit drehfest mit dem Zentralventil 3 und damit mit der Nockenwelle 9 ausgebildet.The first exemplary embodiment provides for the sealing of the pressure fluid distribution space 7 by means of a material connection of the actuator 4 or one or more actuator components with the central valve 3 or a central valve component.
How out Fig. 1 is apparent, for a material connection of the actuator 4 to the central valve 3, a circumferential collar 23 of the sleeve 22 is tightly welded or glued to an axial end face 24 of the valve housing 11. Laser welding, for example, can be used as a welding process. The sleeve 22 is thus embodied in a rotationally fixed manner with the central valve 3 and thus with the camshaft 9.

Die stoffschlüssig mit dem Ventilgehäuse 11 verbundene Hülse 22 ist durch die Verbindung drehbar in der nicht dargestellten Polrohrbaugruppe 17 gelagert, welche einteilig oder mehrteilig ausgebildet sein kann und die wie die restlichen äußeren Bauteile des Aktuators 4 statisch an dem motorfesten Bauteil 20 befestigt ist.The sleeve 22, which is integrally connected to the valve housing 11, is rotatably supported by the connection in the pole tube assembly 17 (not shown), which can be formed in one piece or in several parts and which, like the remaining external components of the actuator 4, is statically attached to the motor-fixed component 20.

Zur Zentrierung der Hülse 22 in der Polrohrbaugruppe können auf einer Innenseite der Polrohrbaugruppe mehrere, vorzugsweise drei, über den Umfang gleichmäßig verteilte, axiale Zentrierrippen aus Kunststoff angespritzt sein. Diese ermöglichen eine exakte Ausrichtung und Zentrierung bei der Montage der restlichen Aktuatorbauteile (Spule 18, Polrohrbaugruppe 17, Gehäuse 19) und gewährleisten die Einhaltung eines notwendigen geringen Luftspalts. Separate Dichtungselemente und eine prozessintensive Herstellung von Dichtflächen zwischen dem Aktuator 4 und dem Nockenwellenversteller 2 können damit entfallen.To center the sleeve 22 in the pole tube assembly, several, preferably three, axial centering ribs made of plastic, evenly distributed over the circumference, can be injection-molded onto an inside of the pole tube assembly. These enable exact alignment and centering during the assembly of the remaining actuator components (coil 18, pole tube assembly 17, housing 19) and ensure that the necessary small air gap is maintained. Separate sealing elements and a process-intensive production of sealing surfaces between the actuator 4 and the camshaft adjuster 2 can thus be dispensed with.

Um die Robustheit des Bausatzes 1 zu steigern, kann zusätzlich ein Teil der Polrohrbaugruppe 17, insbesondere ein Polkern stoffschlüssig, insbesondere mittels Schweißen oder Kleben mit der Stirnfläche 24 des Zentralventils 3 verbunden sein. Zwischen dem Stator 5 und dem Zentralventil 3 kann zur weiteren Abdichtung ein Dichtungselement 25 vorgesehen sein. Ferner kann eine Lagerung mittels eines geeigneten Lagers 26 zwischen dem Stator 5 und dem Zentralventil 3 vorgesehen sein.In order to increase the robustness of the kit 1, part of the pole tube assembly 17, in particular a pole core, can be connected to the end face 24 of the central valve 3 in a materially bonded manner, in particular by means of welding or gluing. A sealing element 25 can be provided between the stator 5 and the central valve 3 for further sealing. Furthermore, a bearing by means of a suitable bearing 26 can be provided between the stator 5 and the central valve 3.

Das gemäß den Fig. 2 bis 5 gezeigte Ausführungsbeispiel unterscheidet sich zum ersten Ausführungsbeispiel gemäß Fig. 1 darin, dass der Aktuator 4 keine Hülse aufweist und der Anker 16 in diesem Fall in der Polrohrbaugruppe 17 verschieblich gelagert ist.
Zwischen dem Nockenwellenversteller 2 und dem Aktuator 4 ist der über das Zentralventil 3 mit Druckfluid befüllbare Druckfluidverteilraum 7 vorhanden, der mit einem Ankerraum 8 des Aktuators 4 in Verbindung steht. Wie ersichtlich ist der Druckfluidverteilraum 7 innerhalb eines Polkerns 27 der Polrohrbaugruppe 17 vorgesehen und erstreckt sich zwischen dem Kolben 10 des Zentralventils 3 und dem Ankerraum 8. Der Druckfluidverteilraum 7 ist auch in diesem Ausführungsbeispiel zur Umgebung hin abgedichtet, um den Riemenantriebsbereich frei von Hydraulikfluid/Druckfluid zu halten und damit den Antrieb betriebssicher zu gewährleisten.According to the Figures 2 to 5 The embodiment shown differs from the first embodiment according to FIG Fig. 1 in that the actuator 4 has no sleeve and the armature 16 in this case is mounted displaceably in the pole tube assembly 17.
Between the camshaft adjuster 2 and the actuator 4 there is the pressure fluid distribution space 7 which can be filled with pressure fluid via the central valve 3 and which is connected to an armature space 8 of the actuator 4. As can be seen, the pressure fluid distribution space 7 is provided within a pole core 27 of the pole tube assembly 17 and extends between the piston 10 of the central valve 3 and the armature space 8. The pressure fluid distribution space 7 is also sealed off from the environment in this exemplary embodiment in order to keep the belt drive area free of hydraulic fluid / pressure fluid and thus to ensure the drive is operationally safe.

Zur Abdichtung des Druckfluidverteilraums 7 ist der Polkern 27 des Aktuators 4 kraft- und formschlüssig, insbesondere mittels einer Presspassung mit dem Zentralventil 3, d.h. mit dem Ventilgehäuse 11 drehfest verbunden. Die Polrohrbaugruppe 17 umfasst in diesem Ausführungsbeispiel den Polkern 27, ein Polrohr 28 sowie einen mit dem Polrohr 28 dicht verbundenen Boden 29. Eine zusätzliche stoffschlüssige Verbindung des Polkerns 27 mit dem Ventilgehäuse 11 ist denkbar.To seal off the pressure fluid distribution space 7, the pole core 27 of the actuator 4 is non-positively and positively locked, in particular by means of a press fit with the central valve 3, ie connected to the valve housing 11 in a rotationally fixed manner. In this exemplary embodiment, the pole tube assembly 17 comprises the pole core 27, a pole tube 28 and a base 29 which is tightly connected to the pole tube 28. An additional material connection of the pole core 27 to the valve housing 11 is conceivable.

Vorteilhafterweise kann zwischen dem Polrohr 28 und dem Polkern 27 ein nicht-magnetisierbarer, mittels eines thermischen Verfahrens hergestellter Zwischenring 30 vorgesehen sein, welcher Polrohr 28 und Polkern 27 stoffschlüssig verbindet.Advantageously, a non-magnetizable intermediate ring 30 produced by means of a thermal process can be provided between the pole tube 28 and the pole core 27, which connects the pole tube 28 and the pole core 27 in a materially bonded manner.

Die form- und kraftschlüssig mit dem Ventilgehäuse 11 verbundene Polrohrbaugruppe 17 ist durch die Verbindung drehbar in der der Spule 18, d.h. in dessen Spulenkörper 21 gelagert, welche wie das Gehäuse 19 und die Polscheiben 31, 32 statisch an dem motorfesten Bauteil 20 befestigt sind.The pole tube assembly 17, which is positively and non-positively connected to the valve housing 11, is rotatably supported by the connection in that of the coil 18, i.e. in its bobbin 21, which like the housing 19 and the pole disks 31, 32 are statically attached to the component 20 fixed to the motor.

Zur Zentrierung des Spulenkörpers 21 der Spule 18 sind auf einer Innenseite des Spulenkörpers 21 mehrere, vorzugsweise drei, über den Umfang gleichmäßig verteilte, axiale Zentrierrippen 36 aus Kunststoff angespritzt sein. Diese ermöglichen eine exakte Ausrichtung und Zentrierung bei der Montage der restlichen Aktuatorbauteile (Spule 18, Spulenkörper 21, Gehäuse 19) und gewährleisten die Einhaltung eines notwendigen geringen Luftspalts. Separate Dichtungselemente und eine prozessintensive Herstellung von Dichtflächen zwischen dem Aktuator 4 und dem Nockenwellenversteller 2 können damit entfallen.To center the bobbin 21 of the bobbin 18, several, preferably three, axial centering ribs 36 made of plastic are injection-molded on an inside of the bobbin 21, evenly distributed over the circumference. These enable exact alignment and centering during the assembly of the remaining actuator components (coil 18, coil body 21, housing 19) and ensure that the necessary small air gap is maintained. Separate sealing elements and a process-intensive production of sealing surfaces between the actuator 4 and the camshaft adjuster 2 can thus be dispensed with.

Das Gehäuse 19 des Aktuators 4, welches wie bereits beschrieben mittels eines zusätzlichen Kunststoffgehäuses umspritzt sein kann, ist bei diesem Ausführungsbeispiel ebenfalls direkt oder mit Hilfe eines Adapters in einem motorfesten Bauteil 20 wie einem Zylinderkopf befestigt.The housing 19 of the actuator 4, which, as already described, can be overmolded by means of an additional plastic housing, is also fastened in this exemplary embodiment directly or with the aid of an adapter in a component 20 fixed to the engine, such as a cylinder head.

Fig. 6 zeigt einen Ausschnitt eines dritten Ausführungsbeispiels eines erfindungsgemäßen Bausatzes 1, bei dem, ähnlich wie gemäß dem vorherigen Ausführungsbeispiel, der Polkern 27 der Polrohrbaugruppe 17 drehfest mit dem nicht dargestellten Zentralventil 3 verbunden ist. Die Polrohrbaugruppe 17 ist hier einteilig ausgebildet und bildet mit dem Zentralventil 3 eine technische Einheit. Die restlichen äußeren Bauteile des Magnetkreises (Spule 18, Spulenkörper 21, Gehäuse 19 und Polscheiben 31, 32 sind statisch direkt oder mit Hilfe eines Adapters in dem motorfesten Bauteil 20 wie einem Zylinderkopf befestigt. Fig. 6 shows a section of a third exemplary embodiment of a kit 1 according to the invention, in which, similar to the previous exemplary embodiment, the pole core 27 of the pole tube assembly 17 is connected to the central valve 3, not shown, in a rotationally fixed manner. The pole tube assembly 17 is designed in one piece here and forms a technical unit with the central valve 3. The remaining External components of the magnetic circuit (coil 18, coil body 21, housing 19 and pole disks 31, 32 are statically fastened directly or with the aid of an adapter in the engine-fixed component 20 such as a cylinder head.

Die Spule 18 mit ihrem Spulenkörper 21, die Polscheiben 31, 32 sowie das Gehäuse 19 des Aktuators 4 sind mittels eines Gleitlagers 33 auf der Polrohrbaugruppe 17 radial zentriert und axial mit minimalem Spiel fixiert. Das Gleitlager 33 ist bei diesem Ausführungsbeispiel aus einem nicht eisenhaltigen Grundwerkstoff (z.B. Bronze) mit PTFE ausgebildet und kann vorzugsweise mit den restlichen Bauteilen umspritzt werden.The coil 18 with its coil body 21, the pole disks 31, 32 and the housing 19 of the actuator 4 are radially centered on the pole tube assembly 17 by means of a sliding bearing 33 and axially fixed with minimal play. In this embodiment, the plain bearing 33 is made of a non-ferrous base material (e.g. bronze) with PTFE and can preferably be overmolded with the remaining components.

Bei einem vierten Ausführungsbeispiel gemäß Fig. 7 sind dagegen zwei Gleitlager 34, 35 aus einem eisenhaltigen Grundwerkstoff axial außerhalb des Magnetkreises angeordnet. Das heißt die beiden Gleitlager 34, 35 befinden sich jeweils axial anschließend der Polscheiben 31, 32 außerhalb des Magnetkreises.In a fourth embodiment according to Fig. 7 on the other hand, two plain bearings 34, 35 made of a ferrous base material are arranged axially outside the magnetic circuit. That is, the two slide bearings 34, 35 are each axially adjacent to the pole disks 31, 32 outside the magnetic circuit.

Grundsätzlich ist das erfindungsgemäße Abdichtungskonzept auch bei nicht gezeigten Ausführungen denkbar, bei welchen die Hülse 22 bzw. der Polkern 27 nicht an dem Zentralventil 3 selbst, sondern an einem Nockenwellenende oder einem an dem Nockenwellenende angeordneten Bauteil wie beschrieben drehfest befestigt wird.In principle, the sealing concept according to the invention is also conceivable in embodiments not shown, in which the sleeve 22 or the pole core 27 is not rotatably attached to the central valve 3 itself, but to a camshaft end or a component arranged on the camshaft end as described.

Claims (14)

  1. Kit (1) with a camshaft adjuster (2), in which a central valve (3) which distributes a pressure fluid is provided, and with an actuator (4) which controls the central valve (3), the camshaft adjuster (2) being driven or being capable of being driven by means of a dry-running flexible drive and having a rotor (6) which is mounted rotatably in a stator (5), a pressure fluid distribution space (7) which can be filled with pressure fluid via the central valve (3) being provided between the camshaft adjuster (2) and the actuator (4), which pressure fluid distribution space (7) is connected to an armature space (8) of the actuator (4) and is sealed towards the surroundings, and the actuator (4) comprising at least one armature (16) which can be moved by means of a coil (18), a pole core (27) and a pole tube (28) as a pole tube assembly (17), characterized in that the sealing of the pressure fluid distribution space (7) takes place by way of an integrally joined and/or non-positive and positively locking connection of the actuator or one or more actuator components to the central valve.
  2. Kit (1) according to Claim 1, characterized in that the armature (16) of the actuator (4) can be displaced axially in a sleeve (22), the sleeve (22) being connected to the central valve (3) in an integrally joined manner, in particular by means of welding or adhesive bonding.
  3. Kit (1) according to Claim 2, characterized in that the sleeve (22) is provided as a sleeve which is manufactured to be thin without the removal of material, and has a coating which is produced by means of plasma nitriding.
  4. Kit (1) according to Claim 2 or 3, characterized in that the pole tube (28) and/or the pole core (27) have/has, on an inner side, a plurality of axial centring ribs which are made from plastic and are preferably moulded on from plastic.
  5. Kit (1) according to Claim 1, characterized in that the pole core (27) of the actuator (4) is connected to the central valve in an integrally joined manner, in particular by means of welding or adhesive bonding.
  6. Kit (1) according to Claim 1 or 5, characterized in that the pole core (27) of the actuator (4) is connected to the central valve (3) in a non-positive and positively locking manner, in particular by means of an interference fit.
  7. Kit (1) according to Claim 6, characterized in that the pole core with the pole tube forms a pole tube assembly (17) which can be preassembled, and a non-magnetizable intermediate ring which is produced by means of a thermal method is provided between the pole tube and the pole core, which intermediate ring connects the pole tube and the pole core in an integrally joined manner.
  8. Kit (1) according to Claim 6, characterized in that the pole core with the pole tube forms a pole tube assembly (17), in the case of which the pole tube and the pole core are provided in one piece.
  9. Kit (1) according to one of Claims 6 to 8, characterized in that a coil body (21) of the coil (18) has, on an inner side, a plurality of axial centring ribs (36) which are made from plastic and are preferably moulded on from plastic.
  10. Kit (1) according to one of Claims 6 to 8, characterized in that at least the coil (18) is centred radially on the pole tube assembly (17) by way of a coil body (21), and a housing (19) of the actuator (4) is centred radially on the pole tube assembly (17) by means of one or more plain bearings (33, 34, 35).
  11. Kit (1) according to Claim 10, characterized in that a single plain bearing (33) consisting of a non-ferrous basic material is arranged between the coil body (21) and the pole tube assembly (17).
  12. Kit (1) according to Claim 10, characterized in that two plain bearings (34, 35) consisting of a ferrous basic material are arranged axially outside a magnetic circuit.
  13. Kit (1) according to one of the preceding claims, characterized in that a seal element (25) is provided between the camshaft adjuster (2), in particular between the stator (5) and the central valve (3).
  14. Kit (1) according to one of the preceding claims, characterized in that a mounting element is provided between the camshaft adjuster (2), in particular between the stator (5) and the central valve (3).
EP18783363.7A 2017-09-27 2018-09-14 Assembly comprising a camshaft phasing device Active EP3688288B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017122425.4A DE102017122425A1 (en) 2017-09-27 2017-09-27 Kit with a camshaft adjuster
PCT/EP2018/074859 WO2019063315A1 (en) 2017-09-27 2018-09-14 Kit having a camshaft phaser

Publications (2)

Publication Number Publication Date
EP3688288A1 EP3688288A1 (en) 2020-08-05
EP3688288B1 true EP3688288B1 (en) 2021-08-11

Family

ID=63798934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18783363.7A Active EP3688288B1 (en) 2017-09-27 2018-09-14 Assembly comprising a camshaft phasing device

Country Status (5)

Country Link
US (1) US10781728B2 (en)
EP (1) EP3688288B1 (en)
CN (1) CN110832171B (en)
DE (1) DE102017122425A1 (en)
WO (1) WO2019063315A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112031887A (en) * 2019-06-04 2020-12-04 句容嘉晟汽车配件有限公司 VVT control valve and installation method thereof
WO2023024120A1 (en) * 2021-08-27 2023-03-02 舍弗勒技术股份两合公司 Camshaft phase regulator

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967701A (en) * 1989-01-12 1990-11-06 Nippondenso Co., Ltd. Valve timing adjuster
US5588404A (en) * 1994-12-12 1996-12-31 General Motors Corporation Variable cam phaser and method of assembly
DE19908146B4 (en) * 1999-02-25 2008-02-07 Schaeffler Kg Device for changing the timing of gas exchange valves of an internal combustion engine
US6799544B1 (en) * 2003-05-29 2004-10-05 Delphi Technologies, Inc. Method and apparatus for actuating a cam phaser
DE102005010749A1 (en) * 2005-03-09 2006-09-21 Schaeffler Kg Clamping rail for a traction mechanism drive
DE102007020526A1 (en) * 2007-05-02 2008-11-06 Schaeffler Kg Camshaft adjuster for an internal combustion engine with improved design of the pressure chambers
EP2009254A1 (en) * 2007-06-27 2008-12-31 Delphi Technologies, Inc. Variable cam phaser apparatus
DE102008039038B4 (en) * 2008-08-21 2021-01-28 Schaeffler Technologies AG & Co. KG Camshaft adjuster
DE102008051145B4 (en) * 2008-10-09 2020-09-17 Schaeffler Technologies AG & Co. KG Belt-drive camshaft adjuster
JP2010255575A (en) * 2009-04-27 2010-11-11 Honda Motor Co Ltd Cam phaser for internal combustion engine
JP5029671B2 (en) * 2009-10-15 2012-09-19 株式会社デンソー Valve timing adjustment device
DE102010002713B4 (en) * 2010-03-09 2013-12-05 Schwäbische Hüttenwerke Automotive GmbH Camshaft phaser with control valve for the hydraulic adjustment of the phasing of a camshaft
JP5538053B2 (en) * 2010-04-28 2014-07-02 日立オートモティブシステムズ株式会社 Variable valve operating device for internal combustion engine
JP2012007520A (en) * 2010-06-23 2012-01-12 Honda Motor Co Ltd Variable valve timing device of internal combustion engine
DE102010053685B4 (en) * 2010-12-08 2014-10-30 Schwäbische Hüttenwerke Automotive GmbH Device for adjusting the rotational angular position of a camshaft
WO2012094324A1 (en) * 2011-01-04 2012-07-12 Hilite Germany Gmbh Valve timing control apparatus and method
CN103518041A (en) * 2011-01-27 2014-01-15 史古德利集团公司 Lost-motion variable valve actuation system with cam phaser
JP5360111B2 (en) * 2011-03-29 2013-12-04 株式会社デンソー Valve timing adjustment device
KR101198810B1 (en) * 2011-05-23 2012-11-07 현대자동차주식회사 Electric continuous variable valve timing apparatus
DE102012209910B4 (en) * 2011-06-20 2021-07-15 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Method of adjusting play in a cam phaser
DE102011084059B4 (en) * 2011-10-05 2016-12-08 Schwäbische Hüttenwerke Automotive GmbH Control valve with integrated filter and camshaft phaser with the control valve
DE102012213002A1 (en) * 2012-07-24 2014-01-30 Schwäbische Hüttenwerke Automotive GmbH Camshaft phaser with sealing sleeve
JP5682614B2 (en) * 2012-12-04 2015-03-11 株式会社デンソー Valve timing adjustment device
DE102013212935B4 (en) * 2013-07-03 2024-02-08 Schaeffler Technologies AG & Co. KG Actuator camshaft adjuster system for a dry belt drive
DE102013212942C5 (en) * 2013-07-03 2021-04-22 Schaeffler Technologies AG & Co. KG Fluid supply, such as an oil supply, for a central valve system for a dry belt drive
US9222378B2 (en) * 2013-07-15 2015-12-29 GM Global Technology Operations LLC Variable cam phaser
US9534513B2 (en) * 2014-01-16 2017-01-03 Delphi Technologies, Inc. Camshaft phaser actuated by an electric motor
CN204002966U (en) * 2014-04-08 2014-12-10 奇瑞汽车股份有限公司 A kind of electric variable valve timing system
DE102014206950A1 (en) * 2014-04-10 2015-10-15 Mahle International Gmbh camshaft
DE102014107459A1 (en) * 2014-05-27 2015-12-03 Thyssenkrupp Presta Teccenter Ag Valve control system with an adjustable camshaft
DE102014011088B3 (en) * 2014-07-30 2016-01-28 Hilite Germany Gmbh Hydraulic valve for a Schwenkmotorversteller
DE102015214725A1 (en) 2015-08-03 2017-02-09 Volkswagen Aktiengesellschaft Internal combustion engine and method for assembling an internal combustion engine
CN106762003A (en) * 2017-03-27 2017-05-31 江苏海龙电器有限公司 For the electromagnetic hydraulic valve of camshaft phase regulation

Also Published As

Publication number Publication date
DE102017122425A1 (en) 2019-03-28
WO2019063315A1 (en) 2019-04-04
EP3688288A1 (en) 2020-08-05
US10781728B2 (en) 2020-09-22
CN110832171A (en) 2020-02-21
CN110832171B (en) 2021-09-10
US20200208545A1 (en) 2020-07-02

Similar Documents

Publication Publication Date Title
DE102010026853B4 (en) Control valve for controlling pressure medium flows of a camshaft adjuster
EP2469048B1 (en) Camshaft adjuster
EP1073830A1 (en) Camshaft adjuster for internal combustion engines
EP2870327B1 (en) Vane type phasing device with hydraulic control valve
EP3219942B1 (en) Camshaft adjuster
WO2019166319A1 (en) Electrical drive device, in particular for a motor vehicle or an electric water pump
DE102012202520A1 (en) Central valve for a camshaft adjuster
WO2010009966A1 (en) Electromagnetic actuating unit of a hydraulic directional valve
WO2012059252A1 (en) Rotor for a camshaft adjuster, and camshaft adjuster
EP3688288B1 (en) Assembly comprising a camshaft phasing device
DE102007020525A1 (en) Camshaft adjuster for an internal combustion engine with integrated valve slide
EP3227540B1 (en) Flap device for an internal combustion engine
DE102016204426A1 (en) Electric shaft adjuster
DE102013022320B4 (en) Connection of an adjustment actuator to a central valve system for a dry belt drive
EP2494157B1 (en) Camshaft adjusting assembly
WO2013087620A1 (en) Hydraulic valve
WO2018206281A1 (en) Internal combustion engine and method for mounting an internal combustion engine
EP3077676A1 (en) Variable pump for an internal combustion engine
DE102015214623A1 (en) Camshaft adjusting device
DE102015205272A1 (en) Camshaft adjuster with Oldham coupling for connection to a camshaft
DE102010005603A1 (en) Cam shaft adjustable arrangement for changing relative angle position of cam shaft opposite to crankshaft of combustion engine of vehicle, has housing member connected with cam shaft, and control valve built into housing member
DE102008032032B4 (en) Cover element for a camshaft adjusting device
DE102011081968A1 (en) Phaser
DE102011000822A1 (en) Housing for internal combustion engine e.g. petrol engine, stator whose exterior wall has openings through which oil is introduced into pressure chambers in associated opposite pivoting directions
DE102012210016A1 (en) Phaser arrangement

Legal Events

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

Free format text: STATUS: UNKNOWN

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

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

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200428

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210428

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018006575

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

Ref country code: AT

Ref legal event code: REF

Ref document number: 1419598

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210915

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210811

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: 20210811

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: 20210811

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: 20210811

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: 20210811

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: 20210811

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: 20211213

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: 20211111

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: 20210811

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: 20211111

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

Ref country code: PL

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

Effective date: 20210811

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: 20210811

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: 20211112

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

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: 20210811

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: 20210811

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018006575

Country of ref document: DE

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210930

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

Ref country code: SM

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

Effective date: 20210811

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: 20210811

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: 20210811

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: 20210811

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: 20210811

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: 20210811

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: 20210811

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed

Effective date: 20220512

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: 20210914

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: 20210811

Ref country code: IE

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

Effective date: 20210914

Ref country code: BE

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

Effective date: 20210930

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: 20210811

Ref country code: LI

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

Effective date: 20210930

Ref country code: CH

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

Effective date: 20210930

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

Ref country code: FR

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

Effective date: 20211011

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

Effective date: 20220914

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

Effective date: 20230515

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

Ref country code: CY

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

Effective date: 20210811

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: 20180914

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

Ref country code: GB

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

Effective date: 20220914

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

Ref country code: DE

Payment date: 20230920

Year of fee payment: 6

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: 20210811

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: 20210811