EP1913605B1 - Electromagnetic actuating appratus - Google Patents

Electromagnetic actuating appratus Download PDF

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Publication number
EP1913605B1
EP1913605B1 EP07786507A EP07786507A EP1913605B1 EP 1913605 B1 EP1913605 B1 EP 1913605B1 EP 07786507 A EP07786507 A EP 07786507A EP 07786507 A EP07786507 A EP 07786507A EP 1913605 B1 EP1913605 B1 EP 1913605B1
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EP
European Patent Office
Prior art keywords
yoke
recess
actuation
bearing element
lubricant
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
EP07786507A
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German (de)
French (fr)
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EP1913605A1 (en
Inventor
Thomas Golz
Achim Riedle
Markus Kamenzin
Volker Burger
Thomas Schiepp
Uwe Wagner
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ETO Magnetic GmbH
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ETO Magnetic GmbH
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Publication date
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Publication of EP1913605A1 publication Critical patent/EP1913605A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1638—Armatures not entering the winding
    • H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0031—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of tappet or pushrod length
    • 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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F2007/163—Armatures entering the winding with axial bearing

Definitions

  • the present invention relates to an electromagnetic actuator according to the preamble of the main claim.
  • Such a device is well known, for example in the form of adjusting devices with electro-magnets and is used for a variety of purposes.
  • the basic principle is that a piston (as adjusting element), which has an engagement region for the intended setting task, is guided in a housing as an armature between a stationary core region and a bearing element acting as a yoke and actuated by means of an electromagnet provided approximately in the core region can.
  • a lubricated electromagnetic actuator Surrounded by a hollow cylindrical sleeve member 10 is an elongated, a cylinder rod (plunger) 12 and end of a permanent magnet assembly 14 exhibiting actuator 16 movable between a stationary core portion 18 and a sleeve-shaped and as storage for the actuator 16 serving yoke element 20 out, wherein the bearing element 20 sealingly in a correspondingly measured hollow cylindrical recess 22 of a support 24, such as an engine block section, is guided.
  • a support 24 such as an engine block section
  • FIG. 5 illustrates an inlet / outlet channel 26 for liquid lubricating oil, which can be passed through a supply / discharge channel 28 in the bearing sleeve 20 in the limited by bearing sleeve 20 and core member 18 and sleeve member 10 movement space for the permanent magnet portion 14 of the actuating element 12.
  • FIG. 5 shown operating and tilting state collects the black oil shown in the bottom region of the chamber thus formed.
  • Activation of a coil unit (not shown in the figures) at the core area 18 then results in a repulsive force on the permanent magnet means 14 (more specifically, a pair of permanent magnetic disks connected by a soft magnetic iron disk fixed end to the cylinder rod 12) to a repulsive effect , whereupon then the actuator is driven out of the arrangement right in the figure view and an end-side engagement portion 30 of the actuating element a correspondingly cooperating control partner, in the described embodiment, a camshaft Hubumscen actuated.
  • Fig. 5 characterized in that it comes in the left-side end region of the actuating element, namely at the contact surface between the cylindrical pin 12 and the plane of this confronting face of the core portion 18, to adhesion effects, in turn effected by existing lubricant. More specifically, a repulsive force on the actuator must first solve the adhesive film causing this adhesive effect at the contact point described before the actuator can perform its actuating movement.
  • FIG. 5 Another, the dynamic properties adversely affecting property of In Fig. 5
  • the apparatus shown is in the comparatively long cylinder guide between cylindrical, pin-shaped element 12 and the sleeve-shaped bearing element 20 surrounding it: over a comparatively long distance along the actuating element exists a sliding or friction surface, which in turn, in particular under the influence of viscous lubricant, first an adhesive or braking force exercises.
  • EP 1 236 940 A discloses an electromagnetic actuating device, in which an adjustment of a quantity of liquid lubricant in the range of movement of the adjusting element is made possible to a volume change resulting from movement of the actuating element by forming a supply and discharge channel for liquid lubricant in a yoke acting as a bearing element, which is realized in the form of an axially extending and provided at the edge in a designed to cooperate with the actuator yoke section opening.
  • the DE 101 19 291 an electromagnetic actuator which causes a reduction in adhesion between planar end faces of an actuator and a core portion through the lubricating agent formed in the contact portion in contact by providing a slot-shaped recess in the contact portion of the end surface of the knob member.
  • Object of the present invention is therefore to improve the dynamic properties of a generic electromagnetic actuator, in particular to shorten the response and control time, namely the period of time passes between activating the coil means and reaching an end stop for the actuating element operated thereby (as Anchor).
  • the invention provides that a core-side contact area between a (typically planar) end face of the actuating element and a directly opposite, with this an end stop forming and also planing outer or end face of the core is modified by providing a recess or notch that a lubricant film forming in the struck end position and causing an adhesion effect can be easily released and loses its adhesive effect (which is detrimental to the dynamic behavior of the device). It is within the scope of the invention to provide such, designed as a transverse slot and at least over the effective contact (adhesive) surface recess in the front region of the actuating element.
  • the actuator along a predetermined cylindrical shell portion by providing a flat-annular groove-shaped recess to modify so that a negative dynamic adhesion causing sliding surface between the actuating element and the surrounding bearing element is reduced.
  • this depression is to be realized axially deep in such a way that on the one hand a mechanically strong, load-bearing guide is ensured by the bearing element, on the other hand the gap formed by the depression is sufficiently large that an adhesive lubricant film does not arise or only with a reduced adhesive effect.
  • the arrangement of the core area, actuator in the permanent magnet and acting as a yoke bearing element of a sleeve element to enclose which not only closes the electromagnetic circuit, but also encloses the arrangement mechanically favorable and sealing.
  • a favorable mechanical development of the invention provides that, based on an outer diameter of the hollow cylindrical sleeve element provided for further development, the hollow cylindrical recess receiving the arrangement (eg in the engine block) has at least such a width that the sleeve element is aligned with this width.
  • Geometric constructive can then be achieved with this measure that an inlet / outlet channel formed in the support in the extension of the inlet / outlet channel for lubricant in the yoke section edge or bottom is arranged in the sleeve element and thus no bottom collecting space for lubricating oil in the range the permanent magnet means remains.
  • the Fig. 1 shows the realization of the electromagnetic actuator according to a first preferred embodiment.
  • Fig. 5 shows the Fig. 1 , analogous to the representation of Fig. 5 , a comparable mounting and tilting position, and corresponding components have identical reference numerals.
  • the one yoke portion realizing, directed to the core portion 44 of the bearing sleeve member 20 in this case has an aligned on the channel 42, maximum radially edge-side shifted inflow / outflow channel 46, which, see. in particular in section A from the Fig. 1 , to the edge in the direction of the surrounding sleeve member 10 has only one wall 48 minimized wall thickness.
  • This then advantageously leads to the fact that, cf. the juxtaposition with the Fig. 5 , an accumulation of oil in the region of the transition between the sleeve and the yoke element can be effectively prevented, and therefore advantageously the dynamic properties of the moving armature are increased.
  • the drainage channel 46 in the form of a bore (shown in addition, see section A, a recess shown in the direction of the cylinder rod 12) repeatedly and distributed around the circumference of the yoke portion 44 around, so that, depending on the mounting position, always a simple and complete emptying of the movement space for the permanent magnet 14 is made possible.
  • the number of the channel 46 realizing holes vary between 1 and 4 or more, see also the views of the yoke element 20 according to Fig. 9 to 11 , Variants with two or four circumferentially distributed channels as holes are exemplified here.
  • a bore 46 has been used to realize in the shown, favorable manner the inlet and outlet channel in the yoke portion
  • several of these variants can be distributed around the circumference of the yoke element 44, if necessary, as required.
  • the detail B illustrates how in the planar end face of the core portion 18 a transverse, ie perpendicular to the drawing plane extending slot assembly 50 is formed, which extends in the transverse direction over the effective width the cylinder rod 12 extends beyond.
  • this measure ensures that a in operation and in the Fig. 1 shown stop position forming lubricating film between the end face of the core 18 and the associated, opposite end face of the cylinder rod 12 can be easily solved or broken upon activation of the device and thus improves the dynamic behavior in turn.
  • the Fig. 13 shows in the detail view such a shell-side recess.
  • the reduced diameter of the annular groove 52 would be about 4 mm, so take place a circumferential recess of 0.5 mm;
  • the present example describes a stroke of the device of 4 mm.
  • lubricant such as engine oil
  • the free rotation 52 would advantageously ensure that, for example in the case of a warm aggregate, the lubricant expands to a large extent and can collect in the cavity of the free rotation; when activated by low temperatures must be displaced correspondingly less lubricant, and the movement of the remaining lubricant takes place when this is thin again by heating.
  • FIGS. 14 and 15 show further variants or developments of this dynamic measure:
  • the plunger especially in its areas outside the annular groove 52
  • the longitudinal grooves 56 are correspondingly advantageous for the fact that hardly any tough lubricant in the armature space or in the region of the plunger is when activating a cold unit.
  • the Fig. 12 shows still - in modification of the basis of the Fig. 1 shown arrangement - a reverse positioning of the unit.
  • this embodiment provides, for example by suitable lateral provision of a flow channel outside the core 18, that at the in Fig. 12 shown opposite the position of the Fig. 1 inverted installation position as before, the lubricant in the bottom area and thus outside the armature space or beyond the core portion 18 can collect. This also advantageously achieves the dynamic improvement intended according to the invention.
  • Fig. 1 In the embodiment shown and detailed in various directions implementation of an electromagnetic actuator a significant improvement in the dynamics of movement and dynamics, so that in particular time-critical switching operations can be optimized.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sliding-Contact Bearings (AREA)
  • Electromagnets (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention relates to an electromagnetic actuating apparatus having an elongated actuating element (16) which forms an engagement area at the end, can be moved by the force of a coil device (which is provided in a stationary manner) and has permanent magnet means (14), in places, which are designed to interact with a stationary core area (18), with a stationary bearing element (20) which acts as a yoke, being provided axially opposite the core area for the actuating element, which is in the form of a piston at least in places, and with an inlet and/or outlet channel (46) for liquid lubricant being formed in the bearing element, with the inlet and/or outlet channel being in the form of at least one aperture, recess and/or hole (46, 60, 62) which runs or run axially and is or are provided at the edge in a yoke section which is designed to interact with the permanent magnet means.

Description

Die vorliegende Erfindung betrifft eine elektromagnetische Stellvorrichtung nach dem Oberbegriff des Hauptanspruches.The present invention relates to an electromagnetic actuator according to the preamble of the main claim.

Eine derartige Vorrichtung ist beispielsweise in Form von Stellvorrichtungen mit Elektrohaftmagneten hinlänglich bekannt und wird für vielfältige Einsatzzwecke benutzt. Das Grundprinzip besteht darin, dass ein Kolben (als Stellelement), der endseitig einen Eingriffsbereich für die vorgesehene Stellaufgabe aufweist, in einem Gehäuse als Anker zwischen einem stationären Kernbereich und einem als Joch wirkenden Lagerelement geführt ist und mittels eines etwa im Kernbereich vorgesehenen Elektromagneten betätigt werden kann.Such a device is well known, for example in the form of adjusting devices with electro-magnets and is used for a variety of purposes. The basic principle is that a piston (as adjusting element), which has an engagement region for the intended setting task, is guided in a housing as an armature between a stationary core region and a bearing element acting as a yoke and actuated by means of an electromagnet provided approximately in the core region can.

In der DE 102 40 774 A1 der Anmelderin , welche als nächstliegender stand der Technik angesehen wird, ist eine solche Vorrichtung mit wesentlichen Elementen gezeigt, wobei typischerweise zusätzlich bei gewissen Stellaufgaben und Einsatzgebieten eine geeignete Schmierung durch ein Flüssigschmiermittel im Bewegungsbereich des Stellelements vorgesehen ist. Dieses Schmiermittel wird über einen Zu- oder Ablaufkanal des Lagerelements ein- bzw. ausgebracht.In the DE 102 40 774 A1 The Applicant, which is considered to be the closest prior art, such an apparatus is shown with essential elements, which is typically additionally provided in certain control tasks and applications, a suitable lubrication by a liquid lubricant in the range of movement of the control element. This lubricant is introduced or discharged via an inlet or outlet channel of the bearing element.

Die Fig. 5 zum (hausinternen) Stand der Technik der Anmelderin illustriert eine derartige geschmierte elektromagnetische Stellvorrichtung: Umgeben von einem hohlzylindrischen Büchsenelement 10 ist ein langgestrecktes, einen Zylinderstab (Stößel) 12 sowie endseitig eine Permanentmagnetanordnung 14 aufweisendes Stellelement 16 bewegbar zwischen einem stationären Kernbereich 18 sowie einem hülsenförmig ausgebildeten und als Lagerung für das Stellelement 16 dienenden Jochelement 20 geführt, wobei das Lagerelement 20 dichtend in einer entsprechend gemessenen hohlzylindrischen Ausnehmung 22 eines Trägers 24, etwa eines Motorblockabschnittes, geführt ist.The Fig. 5 To the (internal) state of the art of the Applicant illustrates such a lubricated electromagnetic actuator: Surrounded by a hollow cylindrical sleeve member 10 is an elongated, a cylinder rod (plunger) 12 and end of a permanent magnet assembly 14 exhibiting actuator 16 movable between a stationary core portion 18 and a sleeve-shaped and as storage for the actuator 16 serving yoke element 20 out, wherein the bearing element 20 sealingly in a correspondingly measured hollow cylindrical recess 22 of a support 24, such as an engine block section, is guided.

Die Schnittansicht der Fig. 5 verdeutlicht einen Zu-/Ablaufkanal 26 für flüssiges Schmieröl, welches über einen Zu-/Ablaufkanal 28 in der Lagerhülse 20 in den von Lagerhülse 20 und Kernelement 18 sowie Büchsenelement 10 begrenzten Bewegungsraum für den Permanentmagnetabschnitt 14 des Stellelements 12 geleitet werden kann. Bei dem in Fig. 5 gezeigten Betriebs- und Neigezustand sammelt sich dabei das schwarz gezeigte Öl im bodenseitigen Bereich der so gebildeten Kammer. Eine Aktivierung einer (in den Figuren nicht gezeigten) Spuleneinheit am Kernbereich 18 führt dann zu einer abstoßenden Kraft auf die Permanentmagnetmittel 14 (genauer gesagt ist ein Paar von permanentmagnetischen Scheiben, verbunden durch eine weichmagnetische Eisenscheibe, endseitig auf dem Zylinderstab 12 befestigt) zu einem Abstoßungseffekt, woraufhin dann das Stellelement in der Figurenansicht rechts aus der Anordnung herausgetrieben wird und ein endseitiger Eingriffsbereich 30 des Stellelements einen entsprechend zusammenwirkenden Stellpartner, im beschriebenen Ausführungsbeispiel eine Nockenwellen-Hubumschaltung, betätigt.The sectional view of Fig. 5 illustrates an inlet / outlet channel 26 for liquid lubricating oil, which can be passed through a supply / discharge channel 28 in the bearing sleeve 20 in the limited by bearing sleeve 20 and core member 18 and sleeve member 10 movement space for the permanent magnet portion 14 of the actuating element 12. At the in Fig. 5 shown operating and tilting state collects the black oil shown in the bottom region of the chamber thus formed. Activation of a coil unit (not shown in the figures) at the core area 18 then results in a repulsive force on the permanent magnet means 14 (more specifically, a pair of permanent magnetic disks connected by a soft magnetic iron disk fixed end to the cylinder rod 12) to a repulsive effect , whereupon then the actuator is driven out of the arrangement right in the figure view and an end-side engagement portion 30 of the actuating element a correspondingly cooperating control partner, in the described embodiment, a camshaft Hubumschaltung actuated.

Wie sich jedoch unmittelbar aus der Darstellung der Fig. 5 ergibt, muss bei ihrem Verschiebeweg in Richtung auf das Lagerelement 20 (als Joch) der Permanentmagnetabschnitt 14 des Stellelements eine Verdrängung des im untersten Bodenbereich gesammelten Schmiermittels durchführen, was, je nach Viskosität des Schmiermittels, zu einer Verlangsamung bzw. Verringerung der erreichbaren Bewegungs- (und damit auch Schalt-) Geschwindigkeit der Einheit führt.However, as can be seen directly from the presentation of the Fig. 5 results in their displacement in the direction of the bearing element 20 (as a yoke) of the permanent magnet portion 14 of the actuating element perform a displacement of the collected in the lowermost bottom region lubricant, which, depending on the viscosity of the lubricant, to a slowdown or reduction of the achievable movement (and thus switching) speed of the unit leads.

Zusätzlich werden diese Dynamikeigenschaften bei den gezeigten (als Ausgangspunkt für die Erfindung herangezogenen) Technologiestand der Fig. 5 dadurch herabgesetzt, dass es im linksseitigen Stirnbereich des Stellelements, nämlich an der Kontaktfläche zwischen dem Zylinderstift 12 und der dieser plan gegenüberstehenden Stirnfläche des Kernbereichs 18, zu Hafteffekten, wiederum bewirkt durch vorhandenes Schmiermittel, kommt. Genauer gesagt muss eine abstoßende Kraft auf das Stellelement erst den diese Haftwirkung bewirkenden Schmiermittelfilm an der beschriebenen Kontaktstelle lösen, bevor das Stellelement seine Stellbewegung durchführen kann.In addition, these dynamic characteristics are shown in the technology level shown (used as a starting point for the invention) Fig. 5 characterized in that it comes in the left-side end region of the actuating element, namely at the contact surface between the cylindrical pin 12 and the plane of this confronting face of the core portion 18, to adhesion effects, in turn effected by existing lubricant. More specifically, a repulsive force on the actuator must first solve the adhesive film causing this adhesive effect at the contact point described before the actuator can perform its actuating movement.

Eine weitere, die Dynamikeigenschaften nachteilig beeinflussende Eigenschaft der In Fig. 5 gezeigten Vorrichtung liegt in der vergleichsweisen langen Zylinderführung zwischen zylindrischem, stiftförmigem Element 12 und dem diesen umgebenden büchsenförmigen Lagerelement 20: Über eine vergleichweise lange Strecke entlang des Stellelements existiert eine Gleit- bzw. Reibungsfläche, die auch wiederum, insbesondere unter dem Einfluss von viskosem Schmiermittel, zunächst eine Haft- bzw. Bremskraft ausübt.Another, the dynamic properties adversely affecting property of In Fig. 5 The apparatus shown is in the comparatively long cylinder guide between cylindrical, pin-shaped element 12 and the sleeve-shaped bearing element 20 surrounding it: over a comparatively long distance along the actuating element exists a sliding or friction surface, which in turn, in particular under the influence of viscous lubricant, first an adhesive or braking force exercises.

Zum weiteren Stand der Technik wird zum einen verwiesen auf die EP 1 236 940 A , welche eine eiektromagnetisiche Stellvorrichtung offenbart, bei welcher eine Anpassung eine Menge von flüssigem Schmiermittel im Bewegungsbereich des Stellelements an eine sich bei Bewegung des Stellelements ergebenden Volumenänderung ermöglicht ist, indem in einem als Joch wirkenden Lagerelement ein Zu- und Ablaufkanal für flüssiges Schmiermittel gebildet ist, welcher in Form eines axial verlaufenden und randseitig in einem zum Zusammenwirken mit dem Stellelement ausgedildeten Jochabschnitt vorgesehenen Durchbruchs realisiert ist.For further prior art, reference is made to the one EP 1 236 940 A which discloses an electromagnetic actuating device, in which an adjustment of a quantity of liquid lubricant in the range of movement of the adjusting element is made possible to a volume change resulting from movement of the actuating element by forming a supply and discharge channel for liquid lubricant in a yoke acting as a bearing element, which is realized in the form of an axially extending and provided at the edge in a designed to cooperate with the actuator yoke section opening.

Ferner offenbart die DE 101 19 291 eine elektromagnetische Stellvorrichtung, die eine Verringerung einer Adhäsion zwischen planen Stirnflächen eines Stellelements und eines Kernbereichs durch den sich im Kontaktbereich bei Kontakt ausbildenden Schmiermitteln bewirkt, indem in dem Kontaktbereich der Stirnfläche des Kemberelchs eine schlitzförmige Ausnehmung vorgesehen wird.Further, the DE 101 19 291 an electromagnetic actuator which causes a reduction in adhesion between planar end faces of an actuator and a core portion through the lubricating agent formed in the contact portion in contact by providing a slot-shaped recess in the contact portion of the end surface of the knob member.

Zum weiteren Stand der Technik wird noch verwiesen auf die DE 196 32 262 A1 sowie die DE 103 45 946 A1 .For further prior art is still referred to the DE 196 32 262 A1 as well as the DE 103 45 946 A1 ,

Aufgabe der vorliegenden Erfindung ist es daher, die dynamischen Eigenschaften einer gattungsgemäßen elektromagnetischen Stellvorrichtung zu verbessern, insbesondere die Ansprech- und Stellzeit zu verkürzen, nämlich den Zeitraum, der vergeht zwischen einem Aktivieren der Spuleneinrichtung und dem Erreichen eines Endanschlags für das dadurch betriebene Stellelement (als Anker).Object of the present invention is therefore to improve the dynamic properties of a generic electromagnetic actuator, in particular to shorten the response and control time, namely the period of time passes between activating the coil means and reaching an end stop for the actuating element operated thereby (as Anchor).

Die Aufgabe wird durch die elektromagnetische Stellvorrichtung nach dem unabhängigen Anspruch 1 sowie alternativ durch die elektromagnetische Stellvorrichtung nach dem unabhängigen Anspruch 2 gelöst; vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.The object is achieved by the electromagnetic actuator according to independent claim 1 and alternatively by the electromagnetic actuator according to independent claim 2; advantageous developments of the invention are described in the subclaims.

So wird mittels der parallel zur Stellelement-Längsachse und randseitig am Jochabschnitt verlaufenden mindestens einen Bohrung (bzw. eines Durchbruchs oder einer Ausnehmung) als Zu- und Ablaufkanal vorteilhaft erreicht, dass flüssiges Schmiermittel sich insbesondere auch bei leicht geneigter Einbauposition der Vorrichtung nicht im Bewegungsraum des Stellelements zwischen Kern und Joch sammeln kann, mithin also die Permanentmagnetmittel keine Verdrängung auf diese Schmiermittelmenge ausüben müssen. Dadurch lässt sich bereits eine beträchtliche Erhöhung der Bewegungs- bzw. Reaktionszeit der erfindungsgemäßen elektromagnetischen Stellvorrichtung erreichen. Dabei ist es einerseits bevorzugt, unmittelbar eine Bohrung (bzw. mehrere verteilte Bohrungen) im Jochabschnitt vorzusehen, welche eine lediglich dünne Wand zum äußerten radialen Jochende belassen, alternativ und im Rahmen der Erfindung ist es möglich, den Zu- und Ablaufkanal im Jochabschnitt durch eine Ausnehmung zu realisieren, welche, etwa in der Art eines axial erstreckenden Abschnitts vom Joch, den gewünschten Kanal anbietet, eine weitere, alternative Variante ist eine Realisierung der Ausnehmung in Form einer (sich gleichermaßen axial längs erstreckenden) Nut.Thus, by means of the parallel to the actuator longitudinal axis and the edge extending at the yoke portion at least one bore (or a breakthrough or a recess) as inlet and outlet channel advantageously achieved that liquid lubricant, especially in slightly inclined installation position of the device not in the movement space of the Can collect control element between the core and yoke, therefore, therefore, the permanent magnet must not exert any displacement on this amount of lubricant. This can already achieve a considerable increase in the movement or reaction time of the electromagnetic actuator according to the invention. It is preferred on the one hand, directly to provide a bore (or a plurality of distributed holes) in the yoke section, which leave a thin wall only to äußerten radial yoke end, alternatively and within the scope of the invention, it is possible, the inlet and outlet channel in the yoke section by a To realize recess, which offers, approximately in the manner of an axially extending portion of the yoke, the desired channel, another alternative variant is a realization of the recess in the form of a (equally axially longitudinally extending) groove.

Zusätzlich ist erfindungsgemäß vorgesehen, dass ein kernseitiger Kontaktbereich zwischen einer (typischerweise planen) Stirnfläche des Stellelements und einer unmittelbar gegenüberliegenden, mit dieser einen Endanschlag bildenden und ebenfalls planen Außen- bzw. Stirnfläche des Kerns so durch Vorsehen einer Ausnehmung bzw. Einkerbung modifiziert ist, dass ein sich in der angeschlagenen Endposition bildender und eine Haftwirkung bewirkender Schmiermittelfilm leicht gelöst werden kann und seine (für das Dynamikverhalten der Vorrichtung nachteilige) Haftwirkung verliert. Dabei liegt es im Rahmen der Erfindung, eine solche, als Querschlitz und zumindest über die wirksame Kontakt-(Haft-) Fläche ausgebildete Ausnehmung im Stirnbereich des Stellelements vorzusehen.In addition, the invention provides that a core-side contact area between a (typically planar) end face of the actuating element and a directly opposite, with this an end stop forming and also planing outer or end face of the core is modified by providing a recess or notch that a lubricant film forming in the struck end position and causing an adhesion effect can be easily released and loses its adhesive effect (which is detrimental to the dynamic behavior of the device). It is within the scope of the invention to provide such, designed as a transverse slot and at least over the effective contact (adhesive) surface recess in the front region of the actuating element.

Alternativ ist von der Erfindung ferner vorgesehen, das Stellelement entlang eines vorbestimmten zylindrischen Mantelabschnitts durch das Vorsehen einer flach-ringnutförmigen Ausnehmung so zu modifizieren, dass eine eine nachteilige dynamische Haftung bewirkende Gleitfläche zwischen Stellelement und dem dieses umgebenden Lagerelements reduziere wird. Genauer gesagt ist erfindungsgemäß diese Vertiefung axial tiefenmäßig so zu realisieren, dass einerseits eine mechanisch feste, belastbare Führung durch das Lagerelement gewährleistet ist, andererseits der durch die Vertiefung gebildete Zwischenraum hinreichend groß ist, dass ein haftender Schmiermittelfilm nicht oder nur in reduzierter Haftwirkung entsteht.Alternatively, it is further provided by the invention, the actuator along a predetermined cylindrical shell portion by providing a flat-annular groove-shaped recess to modify so that a negative dynamic adhesion causing sliding surface between the actuating element and the surrounding bearing element is reduced. More precisely, according to the invention, this depression is to be realized axially deep in such a way that on the one hand a mechanically strong, load-bearing guide is ensured by the bearing element, on the other hand the gap formed by the depression is sufficiently large that an adhesive lubricant film does not arise or only with a reduced adhesive effect.

Besonders vorteilhaft ist es im Rahmen der vorliegenden Erfindung, die Anordnung aus Kernbereich, Stellelement im Bereich der Permanentmagnetmittel und als Joch wirkenden Lagerelement von einem Büchsenelement zu umschließen, welches nicht nur den elektromagnetischen Kreis schließt, sondern auch die Anordnung mechanisch günstig und dichtend einfasst.It is particularly advantageous in the context of the present invention, the arrangement of the core area, actuator in the permanent magnet and acting as a yoke bearing element of a sleeve element to enclose, which not only closes the electromagnetic circuit, but also encloses the arrangement mechanically favorable and sealing.

Je nach Art der Schmierung ist dabei die erfindungsgemäße Bohrung nicht auf eine Einzelbohrung reduziert, sondern kann weiterbildungsgemäß auch mehrere, weiter bevorzugt in Umfangsrichtung verteilt angeordnete Bohrungen im Jochabschnitt randseitig einschließen. Auch sieht eine günstige mechanische Weiterbildung der Erfindung vor, dass, bezogen auf einen Außendurchmesser des weiterbildungsgemäß vorgesehenen hohlzylindrischen Büchsenelements, die die Anordnung aufnehmende hohlzylindrische Ausnehmung im Träger (also z.B. im Motorblock) zumindest eine solche Weite aufweist, dass das Büchsenelement mit dieser Weite fluchtet. Geometrisch-konstruktiv lässt sich mit dieser Maßnahme dann erreichen, dass ein im Träger gebildeter Zu-/Ablaufkanal in Verlängerung des Zu-/Ablaufkanals für Schmiermittel im Jochabschnitt rand- bzw. bodenseitig im Büchsenelement angeordnet ist und damit keinerlei Boden-Sammelraum für Schmieröl im Bewegungsbereich der Permanentmagnetmittel verbleibt.Depending on the type of lubrication while the bore according to the invention is not reduced to a single bore, but can further education according to several, more preferably circumferentially distributed holes in the yoke section include the edge. Also, a favorable mechanical development of the invention provides that, based on an outer diameter of the hollow cylindrical sleeve element provided for further development, the hollow cylindrical recess receiving the arrangement (eg in the engine block) has at least such a width that the sleeve element is aligned with this width. Geometric constructive can then be achieved with this measure that an inlet / outlet channel formed in the support in the extension of the inlet / outlet channel for lubricant in the yoke section edge or bottom is arranged in the sleeve element and thus no bottom collecting space for lubricating oil in the range the permanent magnet means remains.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen; diese zeigen in

Fig. 1:
eine seitliche Schnittansicht der elektromagnetischen Stellvorrichtung gemäß einer ersten bevorzugten Ausführungsform der Erfindung;
Fig. 2:
eine vergrößerte Detailansicht des Ausschnitts A gemäß Fig. 1;
Fig. 3:
eine vergrößerte Teilansicht des Ausschnitts B gemäß Fig. 1;
Fig. 4:
eine vergrößerte Teilansicht des Abschnittes C gemäß Fig. 1;
Fig. 5:
eine seitliche Schnittansicht analog Fig. 1 der als gattungsbildend herangezogenen, firmeninternen Stand der Technik ebenen Technologie, welche die Ausgangslage für die vorliegende Erfindung anbietet;
Fig. 6 bis Fig. 8:
verschiedene Querschnittsansichten einer im Jochabschnitt vorgesehenen Bohrung, Ausnehmung oder eines Durchbruchs zur Realisierung der Erfindung;
Fig. 9 bis Fig. 11:
eine Perspektivansicht sowie zwei bodenseitige Ansichten des Jochelements als Führungsrohr für das Stößelelement mit zwei bzw. vier in Umfangsrichtung angeordneten und randseitig verschobenen Zu- bzw. Ablaufkanälen als Varianten;
Fig. 12:
eine Ansicht analog Fig. 1 zum Verdeutlichen einer Variante der Erfindung, wonach, durch geeignetes, randseitiges Vorsehen eines Zu- bzw. Ablaufkanals am Kernelement die elektromagnetische Stellvorrichtung auch umgedreht (auf dem Kopf) betrieben werden kann und eine bodenseitige Schmiermittelsammlung jenseits des Kerns erfolgen kann;
Fig. 13:
eine Detailansicht des zylindrischen Elements (Stößels) mit mantelseitiger Ausdrehung zur Optimierung des Dynamikverhaltens und
Fig. 14, Fig. 15:
Ansichten eines Stößels (zylindrisches Element) mit -- ergänzend zu der mittig vorgesehenen Ausdrehung -- mantelseitig vorgesehenen Längsnuten zur Schmiermittelführung.
Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in
Fig. 1:
a side sectional view of the electromagnetic actuator according to a first preferred embodiment of the invention;
Fig. 2:
an enlarged detail view of the section A according to Fig. 1 ;
3:
an enlarged partial view of the detail B according to Fig. 1 ;
4:
an enlarged partial view of the section C according to Fig. 1 ;
Fig. 5:
a side sectional view analog Fig. 1 the in-house state of the art technology used as generic, which offers the starting point for the present invention;
6 to 8:
various cross-sectional views of a hole provided in the yoke portion, recess or a breakthrough to implement the invention;
FIGS. 9 to 11:
a perspective view and two bottom-side views of the yoke element as a guide tube for the plunger element with two or four arranged in the circumferential direction and the edge shifted inlet and outlet channels as variants;
Fig. 12:
a view analog Fig. 1 to illustrate a variant of the invention, according to which, by suitable edge-side provision of an inflow or outflow channel on the core element, the electromagnetic actuator can also be reversed (upside down) operated and a bottom-side lubricant collection can be done beyond the core;
Fig. 13:
a detailed view of the cylindrical member (plunger) with shell-side recess to optimize the dynamic behavior and
Fig. 14, Fig. 15:
Views of a plunger (cylindrical element) with - in addition to the centrally provided recess - provided on the shell longitudinal grooves for lubricant supply.

Die Fig. 1 zeigt die Realisierung der elektromagnetischen Stellvorrichtung gemäß einer ersten bevorzugten Ausführungsform. Zur besseren Verdeutlichung der Details und Vorteile gegenüber der als gattungsbildend herangezogenen Technologie gemäß Fig. 5 zeigt die Fig. 1, analog zur Darstellung der Fig. 5, eine vergleichbare Montage- und Neigeposition, und korrespondierende Komponenten weisen identische Bezugszeichen auf.The Fig. 1 shows the realization of the electromagnetic actuator according to a first preferred embodiment. To better clarify the details and advantages over the technology used as generic in accordance with Fig. 5 show the Fig. 1 , analogous to the representation of Fig. 5 , a comparable mounting and tilting position, and corresponding components have identical reference numerals.

Abweichend zur Realisierungsform der Fig. 5 fällt zunächst auf, dass, bei gleichbleibendem Hülsendurchmesser 10, die Anordnung aus Stellelement 16 und Lagerhülse (als Joch) 20 in einer Ausnehmung 40 dichtend gehalten ist, welche auf den Außendurchmesser der Hülse 10 aufgeweitet ist. Dies ermöglicht dann, dass ein im Träger 24 -- also etwa dem Motorblock -- gebildeter Zu-/Ablaufkanal 42 für flüssiges Schmiermittel gegenüber dem als gattungsbildend vorausgesetzten Stand der Technik radial auswärts angeordnet ist, in etwa auf der Höhe des Mantels der Hülse 10.Deviating from the realization of the Fig. 5 It is initially noticeable that, with the same sleeve diameter 10, the arrangement of adjusting element 16 and bearing sleeve (as a yoke) 20 is held sealingly in a recess 40, which is widened to the outer diameter of the sleeve 10. This then makes it possible for a supply / discharge channel 42 formed in the carrier 24-ie, for the engine block-to be arranged radially outward relative to the prior art assumed to be generic, approximately at the level of the jacket of the sleeve 10.

Der einen Jochabschnitt realisierende, auf den Kern gerichtete Abschnitt 44 des Lagerhülsenelements 20 weist dabei einen auf den Kanal 42 ausgerichteten, maximal radial randseitig verschobenen Zu-/Ablaufkanal 46 auf, der, vgl. insbesondere in Ausschnitt A aus der Fig. 1, zum Rand in Richtung auf das umgebene Hülsenelement 10 nur eine Wand 48 minimierter Wandstärke aufweist. Dies führt dann vorteilhaft dazu, dass, vgl. die Gegenüberstellung mit der Fig. 5, eine Ölansammlung im Bereich des Übergangs zwischen Hülse und Jochelement faktisch verhindert werden kann, mithin also in vorteilhafter Weise die Dynamikeigenschaften des bewegenden Ankers erhöht sind. Auch ist der Ablaufkanal 46 in Form einer Bohrung (gezeigt ist zusätzlich, vgl. Ausschnitt A, eine in Richtung auf den Zylinderstab 12 gezeigter Eindrehung) mehrfach und um den Umfang des Jochabschnittes 44 herum verteilt angeordnet, so dass, je nach Einbaulage, stets eine einfache und vollständige Entleerung des Bewegungsraumes für die Permanentmagneten 14 ermöglicht ist. Dabei kann die Zahl der den Kanal 46 realisierenden Bohrungen zwischen 1 und 4 oder mehr variieren, siehe auch die Ansichten des Jochelements 20 gemäß Fig. 9 bis 11. Hier werden Varianten mit zwei bzw. vier umfangsseitig verteilt angeordneten Kanälen als Bohrungen exemplarisch verdeutlicht.The one yoke portion realizing, directed to the core portion 44 of the bearing sleeve member 20 in this case has an aligned on the channel 42, maximum radially edge-side shifted inflow / outflow channel 46, which, see. in particular in section A from the Fig. 1 , to the edge in the direction of the surrounding sleeve member 10 has only one wall 48 minimized wall thickness. This then advantageously leads to the fact that, cf. the juxtaposition with the Fig. 5 , an accumulation of oil in the region of the transition between the sleeve and the yoke element can be effectively prevented, and therefore advantageously the dynamic properties of the moving armature are increased. Also, the drainage channel 46 in the form of a bore (shown in addition, see section A, a recess shown in the direction of the cylinder rod 12) repeatedly and distributed around the circumference of the yoke portion 44 around, so that, depending on the mounting position, always a simple and complete emptying of the movement space for the permanent magnet 14 is made possible. In this case, the number of the channel 46 realizing holes vary between 1 and 4 or more, see also the views of the yoke element 20 according to Fig. 9 to 11 , Variants with two or four circumferentially distributed channels as holes are exemplified here.

Während, gemäß Prinzipdarstellung der Fig. 6 (diese zeigt aus der Richtung des Kernbereichs 18 einen Blick auf die Stirnseite des Jochabschnittes 44) eine Bohrung 46 verwendet wurde, um in der gezeigten, günstigen Weise den Zu- bzw. Ablaufkanal im Jochabschnitt zu realisieren, ist es alternativ und exemplarisch gemäß der analogen Ansichten der Fig. 7 und 8 denkbar, die Bohrung 46 etwa durch einen Abschnitt bzw. Ausnehmung 60 zu realisieren, welche in der in Fig. 7 gezeigten Querschnittsdarstellung einen sich axial randseitig erstreckenden Abschnitt vom Element 44 ausbildet ohne dass zum Rand etwa eine Zwischenwand verbliebe, weiter alternativ kann eine solche Ausnehmung, wie in Fig. 8 gezeigt, in der Art einer Längsnut 62 ausgestaltet sein. Auch von diesen Varianten können wiederum mehrere im Bedarfsfall um den Umfang des Jochelementes 44 herum verteilt sein, je nach Erfordernis.While, according to outline of the Fig. 6 (This shows from the direction of the core portion 18 a view of the end face of the yoke portion 44) a bore 46 has been used to realize in the shown, favorable manner the inlet and outlet channel in the yoke portion, it is alternative and exemplary according to the analog Views of FIGS. 7 and 8 conceivable to realize the bore 46 approximately through a portion or recess 60, which in the in Fig. 7 shown cross-sectional representation of an axially extending edge portion of the element 44 without the edge about an intermediate wall remaining, more alternatively, such a recess, as in Fig. 8 shown to be configured in the manner of a longitudinal groove 62. Again, several of these variants can be distributed around the circumference of the yoke element 44, if necessary, as required.

Die Detailansicht in B und C gemäß Fig. 3 bzw. Fig. 4 aus der Schnittansicht der Fig. 1 verdeutlichen weitere konstruktive, das Dynamikverhalten der Anordnung verbessernde Details als Aspekte der Erfindung: So verdeutlicht der Ausschnitt B, wie in der planen Stirnseite des Kernabschnittes 18 eine quer d.h. senkrecht zur Zeichnungs ebene verlaufende Schlitzanordnung 50 gebildet ist, welche sich in Querrichtung über die wirksame Breite des Zylinderstabes 12 hinaus erstreckt. Vorteilhaft wird durch diese Maßnahme sichergestellt, dass ein sich im Betrieb und in der in Fig. 1 gezeigten Anschlagsposition bildender Schmierfilm zwischen der Stirnseite des Kerns 18 bzw. der zugehörigen, gegenüberliegenden Stirnseite des Zylinderstabes 12 bei Aktivierung der Vorrichtung leicht gelöst bzw. aufgebrochen werden kann und so das Dynamikverhalten wiederum verbessert.The detail view in B and C according to Fig. 3 respectively. Fig. 4 from the sectional view of Fig. 1 Illustrate further constructive, the dynamic behavior of the arrangement improving details as aspects of the invention: Thus, the detail B illustrates how in the planar end face of the core portion 18 a transverse, ie perpendicular to the drawing plane extending slot assembly 50 is formed, which extends in the transverse direction over the effective width the cylinder rod 12 extends beyond. Advantageously, this measure ensures that a in operation and in the Fig. 1 shown stop position forming lubricating film between the end face of the core 18 and the associated, opposite end face of the cylinder rod 12 can be easily solved or broken upon activation of the device and thus improves the dynamic behavior in turn.

Entsprechendes gilt für das gemäß Detailansicht C in Fig. 4 gezeigte, rand- bzw. mantelseitige Vorsehen einer flachen Ringnut 52 im Führungsbereich des Hülsenelements 20. Ersichtlich wird hier nicht nur Haft- bzw. Gleitreibung zwischen dem zylindrischen Element 12 und dem zugehörigen Abschnitt des Lagerelements 20 verringert, auch sorgt diese mechanische Maßnahme, entsprechend der hydrodynamischen Maßnahme gemäß Detail B, für eine Verringerung von haftungs- bzw. reibungserhöhenden Schmierfilm(en).The same applies to the detail view C in FIG Fig. 4 It is evident that not only static or sliding friction between the cylindrical element 12 and the associated portion of the bearing element 20 is reduced here, but also provides this mechanical measure, according to the Hydrodynamic action according to detail B, for a reduction of adhesion or friction-increasing lubricating film (s).

Die Fig. 13 zeigt in der Detailansicht eine solche mantelseitige Ausdrehung. Bei einem typischen Stößeldurchmesser des zylindrischen Elements 12 von 5 mm würde der verringerte Durchmesser der Ringnut 52 ca. 4 mm betragen, also eine umlaufende Eindrehung von 0,5 mm erfolgen; das vorliegende Beispiel beschreibt dabei einen Hub der Vorrichtung von 4 mm.The Fig. 13 shows in the detail view such a shell-side recess. In a typical ram diameter of the cylindrical member 12 of 5 mm, the reduced diameter of the annular groove 52 would be about 4 mm, so take place a circumferential recess of 0.5 mm; The present example describes a stroke of the device of 4 mm.

Vorteilhaft ist diese Maßnahme vor allem auch im Hinblick auf Schaltzeitoptimierungen bei niedrigen Temperaturen: Hier wird nämlich Schmiermittel, etwa Motoröl, relativ zäh, so dass der Verdrängungsaufwand für das Schmiermittel die Stößelbewegung teilweise signifikant verlangsamt. Die Freidrehung 52 würde erfindungsgemäß vorteilhaft dafür sorgen, dass, etwa bei warmem Aggregat, das Schmiermittel weitgehend ablaufen und sich im Hohlraum der Freidrehung sammeln kann; bei Aktivierung von niedrigen Temperaturen muss entsprechend weniger Schmiermittel verdrängt werden, und die Bewegung des verbleibenden Schmiermittels erfolgt, wenn dieses durch Erwärmung wieder dünnflüssig ist.This measure is advantageous, above all, also with regard to switching time optimizations at low temperatures: in this case lubricant, such as engine oil, becomes relatively tough, so that the displacement effort for the lubricant partially slows down the plunger movement in a significant manner. According to the invention, the free rotation 52 would advantageously ensure that, for example in the case of a warm aggregate, the lubricant expands to a large extent and can collect in the cavity of the free rotation; when activated by low temperatures must be displaced correspondingly less lubricant, and the movement of the remaining lubricant takes place when this is thin again by heating.

Die Fig. 14 und 15 zeigen weitere Varianten bzw. Weiterbildungen dieser dynamischen Maßnahme: Ergänzend zur flachen Ringnut 52 ist hier vorgesehen, dass der Stößel (vor allem in seinen Bereichen außerhalb der Ringnut 52) jeweils vier umfangmäßig verteilte Längsnuten 56 aufweist, die den vorbeschriebenen Effekt -- Schmiermittel kann bei warmem Aggregat fast vollständig ablaufen und entsprechend ist der Verdrängungsaufwand bei erneutem kalten Aktivieren verringert -- fortsetzen; die Längsnuten 56 dienen entsprechend vorteilhaft dafür, dass sich bei Aktivierung eines kalten Aggregats kaum zähes Schmiermittel im Ankerraum oder im Bereich des Stößels befindet.The FIGS. 14 and 15 show further variants or developments of this dynamic measure: In addition to the flat annular groove 52 is provided here that the plunger (especially in its areas outside the annular groove 52) each have four circumferentially distributed longitudinal grooves 56 which the above effect - lubricant can at Warm aggregate run almost completely and accordingly the displacement is reduced with renewed cold activation - continue; the longitudinal grooves 56 are correspondingly advantageous for the fact that hardly any tough lubricant in the armature space or in the region of the plunger is when activating a cold unit.

Die Fig. 12 zeigt noch -- in Abwandlung der anhand der Fig. 1 gezeigten Anordnung -- eine umgekehrte Positionierung des Aggregats. Weiterbildungsgemäß sieht diese Ausführungsform vor, etwa durch geeignetes seitliches Vorsehen eines Strömungskanals außerhalb des Kerns 18, dass sich bei der in Fig. 12 gezeigten, gegenüber der Position der Fig. 1 umgekehrten Einbauposition nach wie vor das Schmiermittel im Bodenbereich und damit außerhalb des Ankerraums bzw. jenseits des Kernbereichs 18 sammeln kann. Auch hierdurch wird vorteilhaft die erfindungsgemäß beabsichtigte Dynamikverbesserung erreicht.The Fig. 12 shows still - in modification of the basis of the Fig. 1 shown arrangement - a reverse positioning of the unit. According to a further embodiment, this embodiment provides, for example by suitable lateral provision of a flow channel outside the core 18, that at the in Fig. 12 shown opposite the position of the Fig. 1 inverted installation position as before, the lubricant in the bottom area and thus outside the armature space or beyond the core portion 18 can collect. This also advantageously achieves the dynamic improvement intended according to the invention.

Im Ergebnis bewirkt die in Fig. 1 im Ausführungsbeispiel gezeigte und in verschiedene Richtungen detaillierte Realisierungsform einer elektromagnetischen Stellvorrichtung eine deutliche Verbesserung der Bewegungs- und Stelldynamik, so dass insbesondere auch zeitkritische Schaltvorgänge optimiert bewirkt werden können.As a result, the in Fig. 1 In the embodiment shown and detailed in various directions implementation of an electromagnetic actuator a significant improvement in the dynamics of movement and dynamics, so that in particular time-critical switching operations can be optimized.

Claims (8)

  1. Electromagnetic actuation device comprising an elongated actuation element (16) which forms an engagement region at the end, is movable by the force of a coil device provided in a stationary manner, and comprises permanent magnet means (14) in portions which are formed to cooperate with a stationary core region (18), a stationary bearing element (20) acting as a yoke being provided axially opposite the core region for the actuation element which is piston-shaped at least in portions, and an inlet and/or outlet channel (46) for liquid lubricant being formed in the bearing element, characterised in that the inlet and/or outlet channel is produced in the form of at least one axially extending aperture, recess and/or hole (46, 60, 62) which is provided at the edge of a yoke portion formed to cooperate with the permanent magnet means, and in that the elongated actuation element comprises a planar and annular groove-shaped cavity (52) around the outer surface along a cylindrical portion in the region of the bearing element, which cavity is formed such that it reduces a dynamic adhesive force, caused by lubricant between the actuation element and the bearing element surrounding said actuation element.
  2. Electromagnetic actuation device comprising an elongated actuation device (16) which forms an engagement region on the end side and which is movable by the force of a coil device provided in a stationary manner, which actuation device comprises a permanent magnetic means (14) in portions which is formed to cooperate with a stationary core region (18), in which a stationary bearing element (20) acting as a yoke is provided axially opposing the core region for the actuation device which is at least in portions piston-shaped, and an inlet and/or outlet channel (46) for liquid lubricant is formed in the bearing element, characterised in that the inlet and/or outlet channel is produced in the form of at least one axially extending aperture, recess and/or hole (46, 60, 62) which is provided in at the edge of a yoke portion formed to cooperate with the permanent magnet means, and a contact region on the core side between an end face of the actuation element which forms a cylindrical rod and a directly opposing, planar end face of the core region, the two end faces together forming an end stop, is modified by the provision of a recess in such a way that a lubricant film of the lubricant, said lubricant film forming in an abutted end position, and having an adhesive effect, can be easily dissolved and loses its adhesive effect, the recess formed as a transverse slot and over an effective contact surface being provided in the end region of the actuation element.
  3. Device according to either claim 1 or claim 2, characterised in that at least one end portion of the core region facing the yoke, the permanent magnet means and at least one part of the yoke portion facing the core region are surrounded by a bush element.
  4. Device according to any one of claims 1 to 3, characterised in that the at least one aperture and/or hole extends adjacent to the inner wall of the bush element, forming a thin outer wall of the yoke portion.
  5. Device according to any one of claims 1 to 4, characterised by a plurality of recesses, apertures and/or holes uniformly distributed in a circumferential direction around the circumference of the disc-shaped yoke portion.
  6. Device according to any one of claims 1 to 5, characterised in that the bearing element is held in a carrier which surrounds the bearing element and provides an extension for the inlet and/or outlet channel, the carrier having a recess for receiving the yoke portion and a maximum width of the recess being equal to or greater than a maximum diameter of the yoke portion.
  7. Device according to claim 6, characterised in that the carrier is a component of a combustion engine.
  8. Device according to any one of claims 1 to 7, characterised in that the actuation element is constructed so that it can be activated for a camshaft-stroke change-over of a combustion engine.
EP07786507A 2006-08-03 2007-08-02 Electromagnetic actuating appratus Active EP1913605B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006011907 2006-08-03
PCT/EP2007/006828 WO2008014996A1 (en) 2006-08-03 2007-08-02 Electromagnetic actuating apparatus

Publications (2)

Publication Number Publication Date
EP1913605A1 EP1913605A1 (en) 2008-04-23
EP1913605B1 true EP1913605B1 (en) 2011-10-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07786507A Active EP1913605B1 (en) 2006-08-03 2007-08-02 Electromagnetic actuating appratus

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Country Link
EP (1) EP1913605B1 (en)
AT (1) ATE531054T1 (en)
WO (1) WO2008014996A1 (en)

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DE102017115975A1 (en) 2016-08-01 2018-02-01 Denso Corporation Electromagnetic actuator
DE102020109117A1 (en) 2020-04-01 2021-10-07 Eto Magnetic Gmbh Adhesion-optimized armature assembly and electromagnetic actuating device

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DE202011001412U1 (en) 2011-01-12 2012-04-17 Eto Magnetic Gmbh Electromagnetic actuator and camshaft adjuster
DE102011051268B4 (en) 2011-06-22 2014-03-06 Eto Magnetic Gmbh Electromagnetic actuator and camshaft adjuster
DE102016116777A1 (en) 2016-09-07 2018-03-08 Kendrion (Villingen) Gmbh Electromagnetic actuator, in particular for adjusting camshafts of an internal combustion engine
DE102016116776A1 (en) 2016-09-07 2018-03-08 Kendrion (Villingen) Gmbh Electromagnetic actuator, in particular for adjusting camshafts of an internal combustion engine
DE102017107403A1 (en) 2017-04-06 2018-10-11 Kendrion (Villingen) Gmbh Electromagnetic actuator, in particular for adjusting camshafts of an internal combustion engine
DE102017119001A1 (en) 2017-08-21 2019-02-21 Kendrion (Villingen) Gmbh Electromagnetic actuator
DE102017121723B4 (en) 2017-09-19 2021-07-01 Kendrion (Villingen) Gmbh Electromagnetic adjusting device, in particular for adjusting camshafts of an internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3601554B2 (en) 1995-08-11 2004-12-15 アイシン・エィ・ダブリュ株式会社 Solenoid pressure regulator
JP2001074158A (en) 1999-09-02 2001-03-23 Ebara Corp Solenoid and fluid control valve
DE10119291A1 (en) 2001-04-20 2002-10-24 Conti Temic Microelectronic Actuator for electromagnetic valve control has surface structure machined into anchor plate and/or yokes of magnet
DE20114466U1 (en) * 2001-09-01 2002-01-03 Eto Magnetic Kg Electromagnetic actuator
DE10345946A1 (en) 2003-10-02 2005-04-21 Bosch Gmbh Robert Valve for controlling a gas flow, comprises lubricant chamber which borders on a guide gap between valve housing and magnetic armature

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017115975A1 (en) 2016-08-01 2018-02-01 Denso Corporation Electromagnetic actuator
DE102020109117A1 (en) 2020-04-01 2021-10-07 Eto Magnetic Gmbh Adhesion-optimized armature assembly and electromagnetic actuating device
WO2021198218A1 (en) 2020-04-01 2021-10-07 Eto Magnetic Gmbh Adhesion-optimised armature assembly and electromagnetic control device

Also Published As

Publication number Publication date
ATE531054T1 (en) 2011-11-15
EP1913605A1 (en) 2008-04-23
WO2008014996A1 (en) 2008-02-07

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