EP2158596A1 - Dispositif de réglage électromagnétique - Google Patents

Dispositif de réglage électromagnétique

Info

Publication number
EP2158596A1
EP2158596A1 EP08773520A EP08773520A EP2158596A1 EP 2158596 A1 EP2158596 A1 EP 2158596A1 EP 08773520 A EP08773520 A EP 08773520A EP 08773520 A EP08773520 A EP 08773520A EP 2158596 A1 EP2158596 A1 EP 2158596A1
Authority
EP
European Patent Office
Prior art keywords
units
unit
actuator
engagement
plunger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08773520A
Other languages
German (de)
English (en)
Other versions
EP2158596B1 (fr
Inventor
Thomas Golz
Thomas Schiepp
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.)
ETO Magnetic GmbH
Original Assignee
ETO Magnetic 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 ETO Magnetic GmbH filed Critical ETO Magnetic GmbH
Publication of EP2158596A1 publication Critical patent/EP2158596A1/fr
Application granted granted Critical
Publication of EP2158596B1 publication Critical patent/EP2158596B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01F7/126—Supporting or mounting
    • 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
    • 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
    • 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
    • F01L2301/00—Using particular materials
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/01—Absolute values
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets
    • 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
    • H01F2007/1692—Electromagnets or actuators with two coils
    • 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

Definitions

  • the present invention relates to an electromagnetic actuator according to the preamble of claim 1.
  • Such devices are well known in the art and are used for a variety of control tasks, such as in connection with internal combustion engines.
  • An example of a known actuator unit shows about the German patent application 102 40 774 of the applicant.
  • Object of the present invention is therefore to provide an e- lektromagnetician actuator with a plurality of electromagnetic actuator units according to the preamble of the main claim, which in particular at locations with limited installation space and in particular under conditions of use is favorably usable, which a limited maximum distance of the plunger units pretend to each other.
  • the plurality of actuator units (wherein a particularly preferred embodiment of the invention provides at least three actuator units with correspondingly three slide units) are provided in a preferably cylindrical and / or hollow-cylindrical housing.
  • the drive of the elongate (itself preferably cylindrical see, more preferably realized from a metal material) ram units takes place in that the ram units on an engagement surface of a respective associated actuator unit sit (preferably there by means of magnetic effect Adhere), wherein the engagement surface typically forms the distal end of an anchor unit of the respective actuator unit.
  • the task of a compact arrangement of the ram units can now be solved by the fact that - with parallel driven engagement surfaces of adjacent Aktorenhowen - each rests thereon ram units so eccentric and / or cooperate with their engagement side faces with the engagement surfaces that a compact as possible Arrangement of preferably axially parallel to each other guided ram units takes place, therefore - according to predetermined setting or operating conditions - minimum axial distances of the ram units can be realized to each other.
  • the common housing accommodating the actuator units cooperates with a housing guide section (guide tube) at the end, which offers guides for the majority of tappet units, typically in the form of through holes extending parallel to each other.
  • At least one of the actuator units is space-saving, at the same time optimizes electromagnetically realized by means of a flux-conducting actuator shell unit, which is formed bow-shaped.
  • the packing density of the plurality of actuator units in the common Ge ⁇ housing can be further increased, in particular in that the Akto- Ren units are arranged so that respective Aktorenman- tel units of adjacent actuators do not touch each other.
  • the armature unit from a widened armature section, which has a permanent magnet and at least one armature disc provided thereon (preferably for forming the engagement surface), this widened armature section then merging axially into an elongated armature tappet section, which is guided in a core (having a corresponding guide bore).
  • the core (core unit) can then itself preferably a further training provided compression spring, which acts against the anchor record and / or have a through hole for fluids (in particular air) for further motion optimization by means of pressure compensation.
  • the compression spring according to further development has proven to be advantageous; In the retracted state of the anchor unit, this is pretensioned by means of the armature tappet section. As soon as the coil unit is energized, the holding force of the permanent magnet is first weakened at the core. In addition, the repulsive force acts between the coil unit and the permanent magnet, as a result of which, as a result of the spring force and the repulsion between the permanent magnet and the coil unit, the armature shifts as soon as the magnetic field is completely established.
  • Min least one of the (metallic) plunger assemblies with several ⁇ ren portions provided in the axial direction a first magnetically optimized portion of the plunger unit forms the engagement-side end face, that interacts with the Engagement surface of the anchor unit together, while an opposite second Stoßelabsacrificing, for example, for the purpose of interacting with a downstream actuator, is optimized in terms of hard or wear properties.
  • the second impact section of austenitic material in which case, in particular, methods of cold deformation can further increase the hardness of the second section. It is not necessary to realize the Stoßel unit of two separate workpieces, but may be provided in the context of the present invention, such as the second, wear- ⁇ timed section formed by a (eg by a heat treatment) cured section of an otherwise soft magnetic material.
  • the present invention is particularly suitable for ei ⁇ ne realization of actuating tasks by means of three parallel to each other and in a plane extending Stoßeleinhei- th suitable, for example, for the camshaft adjustment of an internal combustion engine
  • the present invention is not limited thereto.
  • the distance between two mutually guided impact units can advantageously also be optimized within the scope of the invention, just as implementation forms are conceivable in which more than three impact units are driven in compact and space-optimized manner by an associated actuator unit.
  • the present invention is not limited thereto; Rather, it is sufficient for realizing the inventive advantages, if only a component of the motion vector of each Stoßelody in the direction of adjustment, in particular also skewed or otherwise mutually inclined directions of extension of the Stoßelein whatsoever are included in the present invention.
  • the leadership of the StoßeleinRIC in a common housing is the typical implementation, conceivable and included in the invention, however, are also variants in which respective Stoßelein whatsoever are guided in separate, corresponding to each other Ein addressehausen.
  • Fig. 1 a perspective view of the electromagnetic
  • FIG. 2 a rear view / top view of the arrangement according to FIG. 1;
  • FIG. 2 a rear view / top view of the arrangement according to FIG. 1;
  • FIG. 3 shows a side view of the arrangement according to FIG. 1;
  • FIGS. 1 to 3 shows a sectional view through the exemplary embodiment according to FIGS. 1 to 3 (with housing) along the
  • FIG. 5 shows a longitudinal section through the device according to FIG. 4 along the section line A-A;
  • FIGS. 1 to 5 shows a longitudinal section through an actuator unit according to the embodiment of FIGS. 1 to 5;
  • FIG. 8 shows detail views, rotated by 90 °, of the bow-shaped flux-conducting element (actuator shell unit) for use in the actuator unit according to FIG. 6;
  • FIG. 10 is a perspective and side view for verdeut ⁇ union of the interaction between an actuator unit (Fig. 6 to Fig. 8) with an eccentric and part-surface cooperating
  • FIG. 11 shows a perspective view of the electromagnetic actuating device according to a second embodiment of the present invention with two tappet units;
  • FIG. 12 shows a longitudinal section through the device according to FIG. 11;
  • FIG. 14 shows detailed views for clarifying the interaction of an actuator unit of the embodiment of FIGS. 11 and 12 with a ram unit;
  • FIG. 17 a longitudinal section analogous to FIG. 5 to illustrate a further embodiment with plunger units which consist of a plurality of functional sections;
  • FIG. 19 shows a side or perspective view of a variant of the present invention of a tappet unit which is inclined relative to an actuator movement direction and also has a convexly curved end face for interacting with the actuator.
  • FIGs 1 to 3 to the first embodiment show how three actuator units 10, 12, 14 in a housing (shown is only a circular housing cover 16 as a yoke) are distributed so that the actuator units 10 to 14 on a hollow cylindrical inner wall of a Housing jacket 18 (not shown in Figures 1 and 3) abut.
  • On the housing cover (yoke) 16 sits a eingriffmener, flat housing portion 20 which has three juxtaposed in an extension plane breakthroughs for guiding three ram units 22, 24, 26 which axially parallel stored in the manner shown and by in the manner to be described below an associated one of the actuator units 10, 12, 14 are selectively drivable.
  • a maximum diameter d (FIG. 2) of one of the actuator units 10 to 14 is approximately 17 mm; the arrangement shown can thus realize a diameter of the elongated-cylindrical ram units 22, 24, 26 of 5 mm in the manner shown in Figure 3, a mean axial distance a of the ram units of 7 mm, according to the installation and setting conditions to a nachgeschal - tetes unit, in the present embodiment, a camshaft control for an internal combustion engine, which by the three plungers 22, 24, 26 can be actuated (not ge ⁇ shows).
  • FIGS. 4 and 5 deviceiating from FIGS.
  • the cylindrical housing shell 18 are also shown here) illustrate, in particular, the geometrical conditions in the transition between the actuator units 10 to 14 (to be more precise, the engagement-side engagement surfaces 28, 30 , 32 of the actuator units) and the respectively directed end faces 34, 36 and 38: it follows, cf.
  • the sectional view of Fig. 4 that the Stretel units 22, 24, 26 respectively eccentrically on the disc-shaped engaging surfaces 28 to 32 sit, said also circular end faces 34 to 38 in the manner shown in Fig. 4 partially over a respective outer edge of the engagement surfaces 28 to 32 of the actuator units protrude.
  • FIGS. 6 to 8 illustrate constructive details of the three actuator units 10 to 12: a widened anchor tab formed from an elongated, cylindrical armature pusher portion 40 and a self-contained armature disk 42, a permanent magnet disk 44 and a pole disk 46.
  • 47 realized anchor forms on the outer surface of the pole disk 46 one of the engaging surfaces 28 to 32 and is guided in an elongated-hollow cylindrical core element 48, the armature disk 42 opposite, a ring-shaped collar portion 50 forms and along its axial direction of extension through hole 52, which, in order to optimize the fluid flow, allows for a free air flow in the arrangement and is also designed to receive a compression spring 54, which biases in the stop direction of the anchor shown in Fig. 6 this in its rightward direction of movement.
  • the yoke element 48 is initially surrounded by a coil unit 56 having a coil support 56 and a coil unit 58, which in turn is surrounded in sections in the circumferential direction by a spherical flux guide element 60 which offers an opening for a narrow end of the yoke element 48. the other end in two free legs 62, 64 rounded, which limits the travel of the armature (and thus also the pole plate 46 with engagement surface).
  • Figures 7 and 8 show the bugelformige flux guide 60 in detail; the legs 62 and 64, respectively, are elongate-cylindrical section-shaped and seated on a bottom section 66. Variants of this exemplary embodiment within the scope of the present invention also provide that the bugelformige flux guide 60 has only one leg and another of the pair of legs 62nd or 64 can be omitted. Although this leads to a reduction in the magnetic properties, it nevertheless potentially enables the further compacting of a plurality of actuator units formed therewith into a compact structure.
  • FIGS. 9 and 10 illustrate, as an isolated representation of an actuator unit with a shock unit, as in the case of virtually undisturbed electromagnetic functionality, the bugelformige flux guide unit 60 in the circumferential direction only off the arrangement of the coil unit, yoke element and armature unit surrounding each other at the same time, the possibility for the shown Stoßeliki 22 opens at the edge with a part of the end face on the engaging surface 28 also protrude.
  • FIG. 2 illustrates in this connection how the elongated disc-shaped bottom sections 66 and the legs 62, 64 of the respective flux guide elements are placed in such a way that - to minimize the packing density in the hollow cylindrical housing - no mutual influence of the flux guide elements 60 takes place. smaller) outer diameter of the coil units can be effectively used to minimize the space.
  • FIGS. 11 to 14 show an alternative embodiment of the present invention according to a second exemplary embodiment.
  • This exemplary embodiment provides only two impact units 70, 72 which are moved by respectively associated actuator units 74 and 76.
  • the actuator units 74 and 76 correspond structurally to the realization explained with reference to FIGS. 6 to 8 and, in the exemplary embodiment shown, sit in a common housing 78 which has a flat contour (the reference numeral 80 schematically shows a mounting flange for the housing arrangement 78).
  • the elongated-cylindrical impact units 70, 72 are guided in a front housing section 82 so that they can be moved parallel to one another while minimizing their axial spacing (again approximately 7 mm), wherein like FIG let recognize, in the inventive manner, the Stoßeleinhei ⁇ th 70, 72 each eccentric on the formed by a respective Pol ⁇ disc 46 outer engagement surfaces sit (or adhere there magnetically).
  • the Stoßelein opposition 70 and 72 respectively consist of two sections, a first, magnetically optimized section 84 and a second longitudinally ansitzenden thereon section 86, which is adapted in particular for optimized interaction with an end-side engaging partner, such as by suitable hardening (or other forms of wear resistance or the like).
  • FIGS. 13 and 14 again illustrate the eccentric or also laterally protruding seating of the impact units on or on a respective engagement surface.
  • FIG. 15 and Fig. 16 illustrate an alternating magnetic ⁇ effective between two adjacent actuator units, and this both for the first exemplary embodiment with three Stoßeleinhei- th, as well as for the second exemplary embodiment with two Sto ⁇ ßelein whatsoever applies:
  • Figure 15 shows schematically how in the inserted state of two adjacent actuator units each permanent magnet disc 44 (magnetized in the axial direction-) is in each case at the same height, with other
  • there is a repulsive effect of the respective same magnetic poles from each other so that a repulsive force exists between the respective armature units in this operating state.
  • the actuator units is moved out of its rest position (ie approximately corresponding to FIG.
  • the present invention is not limited here to ⁇ ; Rather, it is possible within the scope of preferred developments that the Stoßeleinigan are inclined relative to the actuators or their directions of movement, as well as the Stoßeleinrion may be inclined relative to each other (ie, for example, are led helical), as well as in principle is not closed ⁇ that also the direction of movement of the majority of actuators is inclined to each other.
  • a shock unit 90 rests on the engagement surface 28 of the actuator unit, but, unlike the impact unit 22, the impact unit 90 engages on the engagement side formed with the end face 28 a convexly curved, spherical end portion 92, so that in the end region of the disc 28 a safe interaction and a reliable power transmission between the units is ensured.
  • the geometry discernible from the representations of FIGS. 18, 19 also clarifies that a direction of movement of the bump unit (which is guided by the longitudinal axis of the bump unit 90 (this is not shown) in a corresponding housing is realtive to the longitudinal direction. Axial direction of the actuator unit is inclined +.
  • the impactor unit 90 rests on the disc-shaped surface 28 and can be located there, e.g. be held liable by permanent magnet action.
  • the present invention is not limited to the configurations shown with two or three Stoßel units, but is in principle also suitable for a larger number of Aktoren- and associated Stoßelein whatsoever.
  • a preferred field of application of the present invention in the realization of control tasks in internal combustion engines, such as in the camshaft adjustment in principle, the scope of the present invention is unlimited and has particularly advantageous where only a small installation space for a plurality of actuator units at your disposal stands, but at the same time each plunger with only a very small distance voneinan ⁇ must fulfill their purpose.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne un dispositif de réglage électromagnétique qui présente plusieurs unités électromagnétiques d'actionnement (10, 12, 14) qui peuvent être commandées sélectivement pour exercer une force de réglage sur un nombre correspondant d'unités de poussoir (22, 24, 26) allongées et montées à axes parallèles, les unités d'actionnement étant prévues dans un boîtier commun (18, 20; 78, 82) avec leurs axes mutuellement parallèles à leur direction de réglage, chacune formant à une extrémité d'engagement tournée vers l'unité de poussoir qui leur est associée une surface d'engagement dont certaines parties sont planes et qui peut être déplacée axialement dans la direction de réglage, une surface frontale (34, 36, 38) côté engagement de chacune des unités de poussoir coopérant avec la surface d'engagement (28, 30, 32), et au moins l'une des différentes unités de poussoir reposant sur la surface d'engagement de l'unité d'actionnement associée de manière décentrée et/ou uniquement par une partie de sa surface frontale côté engagement et y adhèrant en particulier magnétiquement.
EP08773520A 2007-06-19 2008-06-19 Dispositif de réglage électromagnétique Active EP2158596B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007028600A DE102007028600B4 (de) 2007-06-19 2007-06-19 Elektromagnetische Stellvorrichtung
PCT/EP2008/004935 WO2008155119A1 (fr) 2007-06-19 2008-06-19 Dispositif de réglage électromagnétique

Publications (2)

Publication Number Publication Date
EP2158596A1 true EP2158596A1 (fr) 2010-03-03
EP2158596B1 EP2158596B1 (fr) 2013-03-27

Family

ID=39743317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08773520A Active EP2158596B1 (fr) 2007-06-19 2008-06-19 Dispositif de réglage électromagnétique

Country Status (6)

Country Link
US (1) US8176887B2 (fr)
EP (1) EP2158596B1 (fr)
JP (1) JP5307803B2 (fr)
CN (2) CN101689419B (fr)
DE (2) DE102007028600B4 (fr)
WO (1) WO2008155119A1 (fr)

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DE102017121723A1 (de) 2017-09-19 2019-03-21 Kendrion (Villingen) Gmbh Elektromagnetische Stellvorrichtung insbesondere zum Verstellen von Nockenwellen eines Verbrennungsmotors
US11220935B2 (en) 2016-09-07 2022-01-11 Kendrion (Villingen) Gmbh Electromagnetic control device, in particular for adjusting camshafts of an internal combustion engine

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EP2191107B1 (fr) 2008-08-01 2014-07-16 Eto Magnetic Gmbh Dispositif de réglage électromagnétique
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DE102009043722A1 (de) 2009-10-01 2011-04-07 Pierburg Gmbh Aktuator für eine Verbrennungskraftmaschine
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DE102013108027A1 (de) 2013-07-26 2015-01-29 Eto Magnetic Gmbh Elektromagnetische Stellvorrichtung und System zur Verstellung einer Funktionalität eines Kraftfahrzeugaggregats
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CN103971877B (zh) 2016-10-19
US20100192885A1 (en) 2010-08-05
JP2010530621A (ja) 2010-09-09
CN101689419A (zh) 2010-03-31
CN103971877A (zh) 2014-08-06
CN101689419B (zh) 2014-05-21
EP2158596B1 (fr) 2013-03-27
DE102007028600A1 (de) 2008-12-24
US8176887B2 (en) 2012-05-15
WO2008155119A1 (fr) 2008-12-24
JP5307803B2 (ja) 2013-10-02
DE102007028600B4 (de) 2011-06-22

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