EP1734541A2 - Électroaimant avec cône de contrôle - Google Patents

Électroaimant avec cône de contrôle Download PDF

Info

Publication number
EP1734541A2
EP1734541A2 EP20060012192 EP06012192A EP1734541A2 EP 1734541 A2 EP1734541 A2 EP 1734541A2 EP 20060012192 EP20060012192 EP 20060012192 EP 06012192 A EP06012192 A EP 06012192A EP 1734541 A2 EP1734541 A2 EP 1734541A2
Authority
EP
European Patent Office
Prior art keywords
armature
control
cone
control cone
electromagnet
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.)
Withdrawn
Application number
EP20060012192
Other languages
German (de)
English (en)
Other versions
EP1734541A3 (fr
Inventor
Dieter Kleinert
Georg Scherer
Helmut Mang
Original Assignee
Schultz Wolfgang E Dipl-Ing
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 Schultz Wolfgang E Dipl-Ing filed Critical Schultz Wolfgang E Dipl-Ing
Publication of EP1734541A2 publication Critical patent/EP1734541A2/fr
Publication of EP1734541A3 publication Critical patent/EP1734541A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H01F7/1607—Armatures entering the winding
    • 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
    • H01F7/081—Magnetic constructions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86678—Combined disk or plug and gate or piston

Definitions

  • the invention relates to an electromagnet consisting of a movable armature in an armature space and a coil can be acted upon with electricity, which generates a current serving to move the armature magnetic field, whereby the armature moves in the direction of a control cone, or the front anchor area in the Control cone dips.
  • Electromagnets described in the introduction are well known. They are used to perform appropriate switching or control tasks.
  • proportional magnets are known in which a proportional to the impressed current force is produced by the electromagnet.
  • Such linear relationships can be used for example in corresponding pressure control valves, where it depends on a corresponding linear pressure control characteristic.
  • an electromagnet In order to be used optimally in such an application, an electromagnet must have a different characteristic from the linear control characteristic.
  • the invention has therefore set itself the task of providing an electromagnet available which has a non-linear, in particular progressive control characteristic.
  • the invention is based on an electromagnet, as described above, and suggests that the average gap width between the armature and the control cone changes with the immersion distance of the armature in the control cone.
  • the average gap width is understood such that along the immersion distance of the armature into the control cone in infinitesimal steps, the gap width is determined and this resulting sum or integral is divided by the immersion distance.
  • control cone is not restrictive cone-like, so for example, frustoconical interpret, as a control cone is basically any geometric arrangement of the inner surfaces of the core of the magnet considered, which cooperates with the anchor.
  • a cone-like that is, for example, frustoconical configuration
  • a cylindrical or cup-like configuration is realized.
  • corresponding intermediate forms to achieve the purpose of the invention are conceivable in which corresponding sections of different types are combined.
  • control cone and / or the armature have inner surfaces or lateral surfaces which are oriented at least partially parallel to the direction of movement of the armature.
  • the control cone has according to this variant of the invention corresponding inner surfaces, the anchor has corresponding lateral surfaces.
  • the principle of the invention is not limited to a specific embodiment of the control cone, but can be realized in the same way also at the anchor, according to the principle of kinematic reversal. Insofar, for example, also include armature embodiments of the invention, which differ from the known cylindrical design and, for example, corresponding frets, flanges, rings or truncated cone-like bevels and so on.
  • a variant of the arrangement according to the invention is designed so that there are approximately three different phases.
  • the anchor or its front anchor area dips into the control cone.
  • the immersion distance considered here is the length of the armature, which is calculated from the edge of the control cone down to the front end of the armature.
  • the interaction of the immersive anchor with The control cone already causes a corresponding effect on the characteristic curve.
  • the second phase is characterized in that then increases the gap (seen in the longitudinal direction of movement).
  • the third or final phase is indicated by the fact that the armature is completely retracted into the control cone and rests against the bottom of the cone.
  • the first phase of the immersion of the armature is carried out in the proposed variant according to the invention that initially results in a smaller average gap width, that is, a relatively high magnetic field line concentration results (the air gap is relatively low).
  • the front portion of the armature is further away from the inner surface of the control cone, the resulting gap is correspondingly larger.
  • the magnetic field density is no longer as great in the front anchor area as when immersed. However, this effect will be added to the still existing effect of the narrow gap range, but just weakened. This results in a non-linear behavior of the characteristic.
  • the invention proposes that in the last phase of immersion of the armature in the control cone reduces the average gap width.
  • the forward anchor region reaches a position with respect to the control cone, in which again there is a narrower gap between the anchor and the control cone.
  • This area is designed, for example, as a shoulder, bevel, truncated cone or the like.
  • the inner surface of the control cone and / or the lateral surface of the Ankers protrusions or paragraphs has.
  • the inner surface of the control cone is provided with projections or shoulders, thereby changing the gap width. This can be done, for example, by the incorporation of corresponding annular grooves (be it completely or only on a partial circumference).
  • the design of the geometry can be varied accordingly to influence the characteristic accordingly.
  • the outer surface of the armature has corresponding projections or paragraphs, in which case it is in particular the region of the armature, which actually dips into the control cone, since in him the magnetic field density is most pronounced and therefore most decisive is.
  • the suitably equipped inner surface of the control cone or a correspondingly shaped lateral surface of the armature acts, for example, together with a corresponding cylindrical design of the opposite surface, so in the case of the control cone a cylindrical shell surface of the armature or a cylindrical inner surface in an appropriately equipped with shoulders and projections anchor ,
  • both the inner surface of the control cone and the lateral surface of the armature with corresponding projections or shoulders or with sections conical or frustoconical areas, be it fully or only on a partial circumference. All of these variants (in particular with regard to the design of the projections and paragraphs) are part of the invention.
  • the gap width is variable in each case and in particular results in a variable with the immersion distance of the armature average gap width.
  • control cone has an inwardly directed flange at its, the armature end facing.
  • the inner surface of the control cone with respect to the flange is recessed.
  • this inner surface is also formed as a cylindrical surface and therefore oriented parallel to the direction of movement of the armature.
  • sections, optionally also opposing, frustoconical surfaces are provided. Ring cup surfaces or other curved surfaces are also part of the invention.
  • a cup-shaped cone bottom is provided at the end facing away from the anchor.
  • the inner surface which is located opposite the flange, directly adjoins this cone bottom, or a corresponding collar or shoulder is provided here.
  • the design of the cone bottom which is obtained for example by a machining, is arbitrary. It is possible to form the cone bottom like a cylinder, so that between the edge and the bottom surface is a right angle, or that this area is cone-shaped or frustoconical.
  • the cone bottom is not limited to the control cone final to the direction of movement of the armature rectangular surface, but still additionally describes an axial region. Of course, the cone bottom also includes the final surface and can also in this sense accordingly be interpreted.
  • the properties of the electromagnet can be adjusted accordingly by the choice of the inner diameter of the cone bottom and the flange. It is therefore proposed according to the invention that the inner diameter of the conical bottom and the flange are the same or different. By a same inner diameter, the machining is facilitated, for example, by a single machining operation, by which the inner surface of the flange and the inner surface of the cone bottom are processed. But the invention is not fixed thereto, these two inner diameters may also be different, wherein the cone bottom of the inner diameter may be larger or smaller than the inner diameter of the flange. This results in different characteristics in the characteristic curve.
  • the armature bears on its side facing the control cone a damping disk, in particular of non-magnetizable material.
  • the front end of the armature forms a control edge
  • the control edge in the first phase of immersion cooperates with the flange of the control cone and in the last phase with the edge or shoulder of the cone bottom.
  • the Control edge thus also defines the immersion distance of the armature into the control cone, in particular when the control edge is the foremost area or edge of the armature in the direction of movement of the armature. Cleverly, the edge also simultaneously limits the gap between the armature and the control cone.
  • the depth of the cone bottom is at least the thickness of the damping disk.
  • the cone bottom is defined by a shoulder or projection on the otherwise recessed inner surface of the control cone. The resulting narrower gap between the control cone and the armature is desired and leads to a correspondingly higher power deployment of the magnet.
  • the dimensions of the depth of the cone bottom and the thickness of the damper disc are coordinated as indicated, such that the control edge of the armature can cooperate in a suitable, desired manner with the projection at the beginning of the cone bottom.
  • the invention includes several embodiments.
  • the invention also includes a variant in which the armature is formed in a suitable manner.
  • the invention also expressly includes a combination of these two variants.
  • the armature has a circumferential groove in its front anchor region, which dips into the control cone. Also this variant as the presented variant is shown in the drawing.
  • the circumferential groove By the circumferential groove, an area is created, which, relative to the inner surface of the control cone, has a greater distance, the gap is larger here.
  • the Immersion of such an anchor in the control cone results in a change in the average gap width depending on the immersion distance.
  • the armature has a first, front control edge and the rear portion of the groove has a second rear control edge. Due to the position of the groove, therefore, the front region, that is to say the thickness of the first anchor region adjoining the control edge, is adjusted accordingly. At the same time a further control edge is defined on the rear in the direction of movement of the armature region of the groove, which cooperates with the immersion of the entire groove in the control cone with the upper edge of the control cone in a similar manner as the first control edge.
  • the invention again includes the variants in which the diameter of the armature in the region of the first control edge and the second control edge is the same or different.
  • control cone can be, for example cylinder-like or, as described above, also equipped with an inwardly projecting hook-like flange.
  • the movement of the armature is transmitted, for example, by an anchor rod to a corresponding element to be controlled or controlled. Therefore, the armature cooperates with an anchor rod, wherein both a rigid connection between the armature and the anchor rod as well as a loose connection is possible according to the invention.
  • a path converter is arranged between the armature and the anchor rod.
  • a path converter is designed, for example gear-like and also causes a force change or force conversion at the same time or is realized for example by springs and only changes the stroke of the armature to a lower stroke of the anchor rod.
  • Wegumsetzers is achieved in particular that a relatively large stroke of the armature is converted into a lower stroke of the anchor rod and an element controlled by the anchor rod element, which optionally takes place with or without power conversion.
  • the anchor rod acts on at least one sealing element of a valve.
  • the sealing element acts together with a sealing seat of the valve and is pressed by the anchor rod in the sealing seat or pushed out of this.
  • the invention gains in particular, for example, with appropriate pressure control valves in importance, since this can be controlled sensitively with correspondingly low pressure by the inventive design and then due to the progressive characteristic curve in the closed position, a correspondingly high force or high pressure at the same current change is available.
  • the invention also includes a pressure regulating valve, which consists of an electromagnet, as described, and a valve connected to the electromagnet, wherein the anchor rod a closing by a sealing seat sealing body and the position of the armature regulates the position of the sealing body to the sealing seat and the anchor rod further acts on a second sealing body which closes in the de-energized state of the electromagnet a second sealing seat, wherein in the first phase of immersion of the armature in the control cone, the anchor rod the pushes second sealing body out of the second sealing seat.
  • a pressure regulating valve which consists of an electromagnet, as described, and a valve connected to the electromagnet, wherein the anchor rod a closing by a sealing seat sealing body and the position of the armature regulates the position of the sealing body to the sealing seat and the anchor rod further acts on a second sealing body which closes in the de-energized state of the electromagnet a second sealing seat, wherein in the first phase of immersion of the armature in the control cone,
  • the arrangement of the hook-like flange or the annular groove on the armature ensures that the force development of the magnet is increased just when immersing the armature in the control cone, and is increased such that the second sealing body is pushed out or pushed out of the second sealing seat.
  • This second sealing body is formed, for example, as a ball and loosely oriented to the anchor rod, wherein the voltage applied in the pressure circuit at zero current of the electromagnet ensures that this second sealing body is located in the second sealing seat and thus securely closes the valve.
  • the inventive design of the geometry of the control cone and / or the armature causes the magnetic force characteristic in the phase in which the second sealing body is to be opened, is raised so far that an early start of control is possible , This is a significant additional advantage of the invention.
  • the solenoid 7 results in particular from Fig. 1.
  • the electromagnet 7 consists of a movable armature chamber 22 anchor 2.
  • the armature space 22 is surrounded by the coil 1.
  • the coil 1 generates a magnetic field when current is applied, which causes the Anchor 2 is moved downwards (arrow 23).
  • Fig. 1 In the view shown in Fig. 1 is located in the lower region of the armature space 22 of the control cone 3.
  • the armature 2 moves into the control cone 3, the special design of the control cone 3 leads to a progressive curve.
  • Fig. 1 shows a driven with the solenoid 7 valve 8, which is referred to, for example, as a pressure control valve.
  • the armature 2 acts on an anchor rod 6, which adjoins below the armature 2, outside the armature space 22.
  • a path converter 4 is arranged between the armature 2 and the anchor rod 6.
  • the path converter 4 causes a lifting conversion of the executed by the armature 2 stroke. This means that the stroke of the armature 2 is not transmitted to the anchor rod 6 to the same extent, but in a correspondingly reduced dimensions.
  • one or more springs 41 of Wegumsetzers 4 is compressed, wherein in this application example, a Wegrousnger Hubredu Vietnamese takes place without a power conversion.
  • a path conversion with corresponding Hubwandlung for example, as in a transmission or a lever mechanism is possible. By such an arrangement is achieved, for example, that a relatively large stroke of the armature 2, which is not necessary for the intended use, is limited or limited to a corresponding stroke.
  • a Hubver handling (as kinematic reversal) by the path converter 4 is part of the invention.
  • the anchor rod 6 is therefore movable relative to the armature 2, the path converter 4 has a corresponding receiving or connecting arrangement, both for the armature 2 on the one hand and for the anchor rod 6 on the other.
  • the application shown as a pressure control valve is used, for example, in corresponding hydraulic circuits.
  • the hydraulic operating pressure is applied as pressure P at the inlet 80.
  • the inlet 80 is part of the valve 8, which adjoins below the electromagnet 7.
  • the lower end of the anchor rod 6 acts on a second sealing element 85, which is formed here for example as a ball.
  • a second sealing element 85 which is formed here for example as a ball.
  • the armature 2 In the de-energized state, the armature 2 is moved all the way up, the front portion 20 of the armature 2 is not immersed in the control cone. Due to the operating pressure P, the ball-like second sealing element 85 is pressed into the second sealing seat 86. Thus, the valve is securely sealed.
  • the armature 2 is offset downwards, the anchor rod 6 follows in the same or corresponding to the conversion ratio of the Wegumsetzers 4 this movement and presses the second sealing element 85 out of the sealing seat.
  • the first sealing element 83 which is fixedly arranged on the anchor rod 6, moves in the direction of the first sealing seat 84 and reduces the passage still shown here. Due to the control characteristic of the electromagnet, a corresponding pressure control now takes place here at the control outlet 81. Via the second outlet 82, the superfluous hydraulic fluid is discharged.
  • the arrangement is chosen so that when fully energized electromagnets, the magnetic field the coil 1 pulls the armature 2 completely into the control cone 3 and so presses the first sealing element 83 firmly, with high force impact in the first sealing seat 84.
  • the arrangement is so dimensioned that it is ensured that the force generated by the electromagnet safe sufficient to hold against a corresponding operating pressure P, the sealing element 83 securely in the first sealing seat 84.
  • This is achieved by a correspondingly progressive characteristic curve, with a correspondingly small change in current at high absolute current resulting in a large change in force (great pressure change in the case of a pressure control application).
  • FIG. 2b and FIG. 2a two different variants of the electromagnet according to the invention are shown.
  • the arrangement is in each case chosen so that a progressive control characteristic is created.
  • Fig. 2a and Fig. 2b shows in a considerably enlarged detail the (first) phase of immersion of the armature 2 in the control cone 3.
  • the armature 2 is here connected to an anchor rod 6, which also belongs to the invention as well as a loose or by a path converter 4 (see FIG. 1) executed connection.
  • an anchor rod 6 which also belongs to the invention as well as a loose or by a path converter 4 (see FIG. 1) executed connection.
  • a Wegumsetzer followed, after which a further anchor rod follows.
  • the armature 2 carries a damping disk 21 at its end facing the control cone 3. At full current load thus the armature 2 does not bang hard on the cone bottom 30, but is attenuated by this damping plate 21 accordingly.
  • the armature moves further upward (arrow 23), the control edge 24 passes behind (in the direction of movement 23) the flange 33, where a recessed inner surface 32 in the control cone 3 is connected.
  • the gap between the flange 33 and the here formed as a homogeneous cylinder armature 2 is relatively narrow or small, in the region of the inner surface 32, the gap width is significantly larger due to the recessed arrangement of the inner surface 32.
  • the control edge 24 reaches the shoulder 31, which separates the cone bottom 30 from the cylindrical inner surface 32. It is now again, similar to the immersion of the armature 2 in the control cone 3, a significant compression of the magnetic field lines, which is accompanied by a correspondingly higher relative power deployment of the magnet.
  • the first sealing element 83 is securely held in the first sealing seat 84, whereby the high force development is also fixed against the working pressure P.
  • the thickness of the damping disk 21 is dimensioned so that a reliable interaction of the control edge 24 takes place with the shoulder 31.
  • the thickness of the damping disc 21 is less than the depth of the cup-shaped cone bottom 30. It will be noted that the cone bottom 30 is not only by the bottom surface oriented at right angles to the direction of movement 23, but also describes the parallel described section from the paragraph 31.
  • a substantially cylindrical armature 2 (with a cylindrical lateral surface 200) has been combined with a control cone 3 having an undercut or a flange 33.
  • the control cone 3 is cylindrical over its entire length, without corresponding hook or flange.
  • an annular groove 27 is arranged on the armature 2 in the front region 20, which starts from a certain thickness of the front anchor surface 26.
  • this thickness of the ring 25 also the properties of the electromagnet are adjustable with respect to its characteristic.
  • a first control edge 28 At the front edge of the ring 25 is a first control edge 28, at the rear end (relative to the direction of movement 23) of the annular groove 27 is a second control edge 29th
  • the desired course of the characteristic is effected here by a clever interaction of the first control edge 28 and the second control edge 29. Again, the position is shown in which the armature 2 just immersed in the control cone 3, so a relatively small gap is available. The average gap width is low. In the second phase then passes the annular groove 27 in the control cone, the distance between the armature and the Steuerkonusinnen Chemistry 32 increases, the average gap width, based on the immersion distance of the armature 2 in the control cone 3 changes or increases. This effect continues until the second control edge 29 penetrates into the control cone 3, because then this forming paragraph again results in a compression of the magnetic field lines and thus increases the power delivery. This is accompanied by a significant reduction in the gap width in the region of the second control edge 29, which also leads to a corresponding reduction in the average gap width in this immersion path.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Magnetically Actuated Valves (AREA)
EP20060012192 2005-06-15 2006-06-13 Électroaimant avec cône de contrôle Withdrawn EP1734541A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510027779 DE102005027779A1 (de) 2005-06-15 2005-06-15 Elektromagnet mit Steuerkonus

Publications (2)

Publication Number Publication Date
EP1734541A2 true EP1734541A2 (fr) 2006-12-20
EP1734541A3 EP1734541A3 (fr) 2007-09-12

Family

ID=36940170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060012192 Withdrawn EP1734541A3 (fr) 2005-06-15 2006-06-13 Électroaimant avec cône de contrôle

Country Status (3)

Country Link
US (1) US7647943B2 (fr)
EP (1) EP1734541A3 (fr)
DE (1) DE102005027779A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010060687A1 (fr) * 2008-11-25 2010-06-03 Robert Bosch Gmbh Circuit magnétique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007042207A1 (de) * 2007-09-05 2009-03-12 Zf Friedrichshafen Ag Druckbegrenzungsventil und Anordnung eines Druckbegrenzungsventils zur Vorsteuerung eines Druckregelventils
US8421565B2 (en) * 2010-09-21 2013-04-16 Remy Technologies Llc Starter motor solenoid with variable reluctance plunger
DE102012107764A1 (de) * 2012-08-23 2014-04-10 Kendrion (Villingen) Gmbh Common-Rail-System
DE102017214506A1 (de) * 2017-08-21 2019-02-21 Robert Bosch Gmbh Proportionalventil zum Steuern eines gasförmigen Mediums

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018035A (en) * 1956-10-05 1962-01-23 Bull Sa Machines Electro-magnetic actuating means
EP1507271A2 (fr) * 2003-08-12 2005-02-16 Japan AE Power Systems Corporation Dispositif électromagnétique
EP1522757A1 (fr) * 2002-07-17 2005-04-13 Mitsubishi Denki Kabushiki Kaisha Frein electromagnetique
US20050099256A1 (en) * 2003-11-10 2005-05-12 Viswanathan Subramanian Solenoid and valve assembly having a linear output

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737141A (en) * 1972-04-13 1973-06-05 Control Concepts Normally closed solenoid operated valve
DE3315222A1 (de) * 1983-04-27 1984-10-31 Mannesmann Rexroth GmbH, 8770 Lohr Elektrisch ansteuerbares druckbegrenzungsventil mit hydraulischer federvorspannung
US4886091A (en) * 1988-06-20 1989-12-12 Continental Machines, Inc. Anti-shock directional control fluid valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018035A (en) * 1956-10-05 1962-01-23 Bull Sa Machines Electro-magnetic actuating means
EP1522757A1 (fr) * 2002-07-17 2005-04-13 Mitsubishi Denki Kabushiki Kaisha Frein electromagnetique
EP1507271A2 (fr) * 2003-08-12 2005-02-16 Japan AE Power Systems Corporation Dispositif électromagnétique
US20050099256A1 (en) * 2003-11-10 2005-05-12 Viswanathan Subramanian Solenoid and valve assembly having a linear output

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010060687A1 (fr) * 2008-11-25 2010-06-03 Robert Bosch Gmbh Circuit magnétique

Also Published As

Publication number Publication date
EP1734541A3 (fr) 2007-09-12
DE102005027779A1 (de) 2006-12-28
US20060289822A1 (en) 2006-12-28
US7647943B2 (en) 2010-01-19

Similar Documents

Publication Publication Date Title
DE19624897C2 (de) Dämpfventil mit veränderbarer Dämpfkraft
DE19624898C2 (de) Dämpfventil mit veränderbarer Dämpfkraft
DE102008011573B4 (de) Elektromagnetischer Aktuator und Ventil
EP0877687B1 (fr) Soupape a actionnement electromagnetique s'utilisant notamment pour systemes de freinage hydrauliques d'automobiles
EP1734540A2 (fr) Électroaimant avec convertisseur de déplacement
EP2308064B1 (fr) Système d électroaimant de levage et système de soupape
DE19655090C2 (de) Elektromagnetisch betätigtes Wegeventil
EP1311417B1 (fr) Soupape a actionnement electromagnetique, notamment pour des systemes de freinage hydrauliques dans des vehicules automobiles
DE102008042731A1 (de) Magnetventil
EP0400395A2 (fr) Amortisseur de choc
DE19904901A1 (de) Proportional-Druckregelventil
DE102012106134A1 (de) Ventil
EP0976013A1 (fr) Soupape de reglage de pression
DE102006054040B3 (de) Elektropneumatischer Druckwandler
DE102005023547A1 (de) Elektrisch ansteuerbares Ventil
EP1734541A2 (fr) Électroaimant avec cône de contrôle
DE3505169C2 (de) Betätigungsmagnet
DE10305157B4 (de) Elektromagnetisches Doppelschaltventil
DE102009060406A1 (de) Polrohr eines Elektromagneten
DE2855902A1 (de) Elektromagnetisch betaetigbares 3/2-wegeventil, insbesondere zur fernsteuerung von einseitig mit einem fluid beaufschlagbaren vorrichtungen
DE102013107390B4 (de) Druckregelventil mit Regelelement
EP3312853A1 (fr) Électro-aimant
WO2014019746A1 (fr) Corps de soupape pour soupape de réglage et électrovanne correspondante
DE102009041446A1 (de) Elektromagnet
DE3046167A1 (de) Magnetventil

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080312

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566