EP3688288B1 - Ensemble comprenant un déphaseur d'arbre à cames - Google Patents

Ensemble comprenant un déphaseur d'arbre à cames Download PDF

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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)
English (en)
Other versions
EP3688288A1 (fr
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/fr
Application granted granted Critical
Publication of EP3688288B1 publication Critical patent/EP3688288B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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.

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

Claims (14)

  1. Jeu de pièces (1) comprenant un dispositif de réglage d'arbre à cames (2), dans lequel une soupape centrale (3) distribuant un fluide de pression est prévue, et comprenant un actionneur (4) qui commande la soupape centrale (3), le dispositif de réglage d'arbre à cames (2) étant entraîné ou pouvant être entraîné au moyen d'une transmission à moyen de traction fonctionnant à sec et comprenant un rotor (6) monté de manière rotative dans un stator (5), une chambre de distribution de fluide de pression (7) pouvant être remplie de fluide de pression par l'intermédiaire de la soupape centrale (3) étant prévue entre le dispositif de réglage d'arbre à cames (2) et l'actionneur (4), qui est reliée à une chambre d'induit (8) de l'actionneur (4) et qui est étanchéifiée vis-à-vis de l'environnement, et l'actionneur (4) comprenant au moins un induit (16) mobile au moyen d'une bobine (18), un noyau polaire (27) et un tube polaire (28) en tant que sous-groupe de tube polaire (17), caractérisé en ce que l'étanchéification de la chambre de distribution de fluide de pression (7) a lieu par une liaison par accouplement de matière et/ou par accouplement de force et de forme de l'actionneur ou d'un ou de plusieurs composants de l'actionneur avec la soupape centrale.
  2. Jeu de pièces (1) selon la revendication 1, caractérisé en ce que l'induit (16) de l'actionneur (4) est déplaçable axialement dans une gaine (22), la gaine (22) étant reliée par accouplement de matière, notamment au moyen d'une soudure ou d'un collage avec la soupape centrale (3).
  3. Jeu de pièces (1) selon la revendication 2, caractérisé en ce que la gaine (22) est prévue sous la forme d'une gaine fabriquée de façon mince sans enlèvement de copeaux et comprend un revêtement produit au moyen d'une nitruration au plasma.
  4. Jeu de pièces (1) selon la revendication 2 ou 3, caractérisé en ce que le tube polaire (28) et/ou le noyau polaire (27) comprennent sur un côté intérieur plusieurs nervures de centrage axiales en matière plastique, de préférence moulées par injection à partir de matière plastique.
  5. Jeu de pièces (1) selon la revendication 1, caractérisé en ce que le noyau polaire (27) de l'actionneur (4) est relié par accouplement de matière, notamment au moyen d'un soudage ou d'un collage avec la soupape centrale.
  6. Jeu de pièces (1) selon la revendication 1 ou 5, caractérisé en ce que le noyau polaire (27) de l'actionneur (4) est relié par accouplement de force et de forme, notamment au moyen d'un ajustement serré avec la soupape centrale (3).
  7. Jeu de pièces (1) selon la revendication 6, caractérisé en ce que le noyau polaire forme avec le tube polaire un sous-groupe de tube polaire (17) pouvant être prémonté, et une bague intermédiaire non magnétisable, produite au moyen d'un procédé thermique, est prévue entre le tube polaire et le noyau polaire, qui relie par accouplement de matière le tube polaire et le noyau polaire.
  8. Jeu de pièces (1) selon la revendication 6, caractérisé en ce que le noyau polaire forme avec le tube polaire un sous-groupe de tube polaire (17), dans lequel le tube polaire et le noyau polaire sont prévus d'un seul tenant.
  9. Jeu de pièces (1) selon l'une quelconque des revendications 6 à 8, caractérisé en ce qu'un corps de bobine (21) de la bobine (18) comprend sur un côté intérieur plusieurs nervures de centrage axiales (36) en matière plastique, de préférence moulées par injection à partir de matière plastique.
  10. Jeu de pièces (1) selon l'une quelconque des revendications 6 à 8, caractérisé en ce qu'au moins la bobine (18) munie d'un corps de bobine (21), ainsi qu'un boîtier (19) de l'actionneur (4) sont centrés radialement sur le sous-groupe de tube polaire (17) au moyen d'un ou de plusieurs paliers lisses (33, 34, 35).
  11. Jeu de pièces (1) selon la revendication 10, caractérisé en ce qu'un palier lisse unique (33) en un matériau de base ne contenant pas de fer est agencé entre le corps de bobine (21) et le sous-groupe de tube polaire (17).
  12. Jeu de pièces (1) selon la revendication 10, caractérisé en ce que deux paliers lisses (34, 35) en un matériau de base contenant du fer sont agencés axialement à l'extérieur d'un circuit magnétique.
  13. Jeu de pièces (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un élément d'étanchéité (25) est prévu entre le dispositif de réglage d'arbre à cames (2), notamment entre le stator (5) et la soupape centrale (3).
  14. Jeu de pièces (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un élément de palier est prévu entre le dispositif de réglage d'arbre à cames (2), notamment entre le stator (5) et la soupape centrale (3).
EP18783363.7A 2017-09-27 2018-09-14 Ensemble comprenant un déphaseur d'arbre à cames Active EP3688288B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017122425.4A DE102017122425A1 (de) 2017-09-27 2017-09-27 Bausatz mit einem Nockenwellenversteller
PCT/EP2018/074859 WO2019063315A1 (fr) 2017-09-27 2018-09-14 Trousse comportant un actionneur d'arbre à cames

Publications (2)

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

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EP18783363.7A Active EP3688288B1 (fr) 2017-09-27 2018-09-14 Ensemble comprenant un déphaseur d'arbre à cames

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

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Publication number Priority date Publication date Assignee Title
CN112031887A (zh) * 2019-06-04 2020-12-04 句容嘉晟汽车配件有限公司 一种vvt控制阀及其安装方法
CN117795179A (zh) * 2021-08-27 2024-03-29 舍弗勒技术股份两合公司 凸轮轴相位调节器

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CN110832171B (zh) 2021-09-10
US20200208545A1 (en) 2020-07-02
DE102017122425A1 (de) 2019-03-28
WO2019063315A1 (fr) 2019-04-04
US10781728B2 (en) 2020-09-22
EP3688288A1 (fr) 2020-08-05

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