EP1334493B1 - Actionneur pour soupape hydraulique - Google Patents

Actionneur pour soupape hydraulique Download PDF

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Publication number
EP1334493B1
EP1334493B1 EP01996867A EP01996867A EP1334493B1 EP 1334493 B1 EP1334493 B1 EP 1334493B1 EP 01996867 A EP01996867 A EP 01996867A EP 01996867 A EP01996867 A EP 01996867A EP 1334493 B1 EP1334493 B1 EP 1334493B1
Authority
EP
European Patent Office
Prior art keywords
magnet
actuator according
housing
coil
pole
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.)
Expired - Lifetime
Application number
EP01996867A
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German (de)
English (en)
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EP1334493A1 (fr
Inventor
Hartmuth Rausch
Peter-Klaus Budig
Ralf Werner
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.)
Parker Hannifin GmbH and Co KG
Original Assignee
Parker Hannifin GmbH and Co KG
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 Parker Hannifin GmbH and Co KG filed Critical Parker Hannifin GmbH and Co KG
Publication of EP1334493A1 publication Critical patent/EP1334493A1/fr
Application granted granted Critical
Publication of EP1334493B1 publication Critical patent/EP1334493B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01F7/066—Electromagnets with movable winding
    • 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
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8225—Position or extent of motion indicator
    • Y10T137/8242—Electrical

Definitions

  • the invention relates to an actuator for actuating a valve, comprising a housing jacket made of magnetically conductive material, an actuating lug having, in the housing shell to form an existing air gap movable coil carrier with at least one wound on its circumference, current-carrying coil and with one of the Spool support with the formation of an air gap enclosed magnetic cylinder with an axially arranged in its interior sequence of permanent magnet and a magnetically conductive material existing pole disk, wherein the axial width of the coil is greater than the axial length of the coil associated pole plate.
  • the known actuator consists of a one-sided closed, completely made of a magnetically conductive material housing in which the movable out with an actuating approach from the housing coil carrier is movable.
  • the known actuator is characterized in that the pole disks are narrow compared to the adjacent arranged permanent magnets and wound on the bobbin Coils relative to the associated narrow pole discs have a much greater width.
  • a similarly constructed actuator is known from US 5,745,019; as far as in this design of the coil carrier already is movable in a fluidic medium, the medium is a magnetic fluid which is provided to improve the magnetic flux within the actuator. Since such magnetic fluids inherently have a correspondingly high viscosity, frictional heat is generated during the movement of the coil carrier in the fluid and movement-inhibiting effects are more likely to occur.
  • the invention provides in its basic idea that the size dimensions of the permanent magnet and pole disk are matched to one another such that the frontal cross-sectional area of the permanent magnet corresponds at least to the circumferential area of an adjacent pole disk and 'that the width of the spool associated coil the width of the pole disk to the stroke amplitude of the bobbin overlaps, and that the actuator for operating a set up in the field of hydraulics. Valve is thereby established and the bobbin recesses for receiving the coils has such that adjusts between coil carrier and magnetic cylinder tube a laminar lubricating film in the sense of a sliding bearing of the bobbin on the magnetic cylinder tube without displacement of the surrounding hydraulic fluid.
  • the invention has the advantage that initially the non-contributing to the force acting on the coil carrier leakage flux is thereby kept low, that the entire magnetic flux in the region of the pole disk radially on the shortest geometric path through the
  • Air gap between the magnetic cylinder tube and housing or housing shell is performed so that all the coil conductors are subjected to the maximum air gap induction. This is ensured during the entire axial movement of the bobbin relative to the stationary magnetic cylinder tube, the invention provides that the width of the pole disc associated coil overlaps the width of the pole disk to the stroke amplitude of the bobbin insofar as this is the extent of the coils is limited to the necessary extent , results in an advantageous arrangement of coils with the lowest possible self-inductance and a low winding weight.
  • the size of the air gap between the. Spool carrier and the magnetic cylinder tube provides an adjustment of a smallest possible air gap in that the coils are wound into formed on the bobbin recesses, so that adjusts a laminar lubricating film between the bobbin and magnetic cylinder tube without displacement of the surrounding hydraulic fluid.
  • the coil carrier consisting of electrically non-conductive material, for example made of plastic, hard tissue or ceramic, has recesses for receiving the coils, into which the individual coils are wound.
  • the sleeve-shaped coil carrier is provided with a star-shaped radially inwardly projecting spokes, in the center of which a plunger projecting from the housing is connected as an actuating projection.
  • the invention provides that the housing shell is part of a closed and the movable coil carrier and the magnetic cylinder receiving housing, wherein the plunger engages through the associated end wall of the housing in an opening.
  • the invention provides a magnetic module which is formed by a permanent magnet arranged centrally in the magnet cylinder and two pole discs arranged on the outside, wherein in the magnet module each pole disc on the coil carrier is assigned a partial coil, wherein the partial coils of a magnetic module wound in opposite directions and connected to each other mechanically and electrically, so that a mutual induction is avoided.
  • a single magnet module is arranged within the housing jacket of the actuator. Due to the compact, symmetrical design of the magnetic module associated therewith, a relatively larger force density is generated due to the inventively relatively low magnetic leakage losses, which allows in conjunction with a low inertia of the bobbin including wound thereon coils fast exchange movements or a fast one-sided deflection of the bobbin.
  • the self-inductances of the coil sections are kept low, so that such rapid changes in current are possible that, for example, stroke adjustments over a few millimeters can be achieved in a few milliseconds.
  • a plurality of magnetic modules are arranged axially one behind the other within the housing shell, with axially identical poles of the permanent magnet facing each magnet module.
  • the outer pole disks of each magnet module are joined together to form an integral connecting pole disk.
  • the inner edge magnet of the magnetic cylinder tube rests on the end wall of the housing made of magnetically conductive material on the closed housing side.
  • the housing on its open front side radially inwardly jumping and axially between the spokes of the supporting star of the bobbin claw poles has magnetically conductive material, which are in a magnetically adhesive connection with the associated edge magnet of the magnetic cylinder and the magnetic cylinder tube.
  • the housing shell open on both sides with formed at its two ends claw poles, wherein the movable in the housing shell coil support at both end faces in each case a supporting star with it may have protruding ram.
  • the claw poles are designed to correspond to the existing between the spokes of the star carrier gaps.
  • the claw poles form an anti-rotation device for the star carrier with plunger, as far as the interaction of the actuator with a valve used in fluid technology when starting the valve torsional forces on the plunger and so that it can be transmitted to the spool carrier via the carrier star.
  • at least one claw pole has, for example, a hump-shaped or linearly abutting projection against the associated spoke of the support star, so that surface friction is avoided and only one point friction or line friction is allowed. Accordingly, a projection may also be formed on a spoke and bear against the claw pole.
  • the structure of a magnetic module or the plurality of magnetic modules according to an embodiment of the invention may also be such that a magnetic module is formed by a pole disc centrally disposed in the magnetic cylinder tube and two each outside arranged permanent magnet, wherein axially equal poles of the permanent magnet facing each other and on the coil carrier is wound one of the centrally arranged pole disc associated coil.
  • a magnetic module is formed by a pole disc centrally disposed in the magnetic cylinder tube and two each outside arranged permanent magnet, wherein axially equal poles of the permanent magnet facing each other and on the coil carrier is wound one of the centrally arranged pole disc associated coil.
  • a biased spring for acting on the plunger in its coupling position with a valve connected to the actuator.
  • the coils wound in the recesses of the coil carrier are still superimposed by a protective layer, so that the coil carrier provided with coils has in each case a smooth surface.
  • Corresponding grooves can optionally also be provided on the outer circumference of the bobbin.
  • the actuator shown in Figure 1 in a schematic representation has a housing 10, the outer casing shell 11 consists of a magnetically conductive material.
  • the one closed end 12 of the housing 10 is made for reasons to be explained from another, namely a magnetically non-conductive material, while the opposite end face 13 consists of magnetically conductive material and has a central recess 14.
  • a cylindrical magnetic cylinder tube 15 is arranged and connected on one side with the closed end face 12 of the housing 10.
  • the magnetic cylinder tube 15 is made of a magnetically non-conductive material.
  • a permanent magnet 16 is arranged in a central position, on whose two end faces in each case a pole disk 17 is located.
  • a spacer 18 is additionally arranged from a magnetically non-conductive material, which has the purpose, in view of the yet to be explained geometrical definition of the size ratios of the permanent magnet 16 and Polin 17th for a sufficient range of motion of the coil carrier to be explained to create.
  • existing annulus is a sleeve-shaped made of a magnetically and electrically non-conductive material, such as plastic, hard tissue or ceramic existing coil carrier 19 axially movable, wherein between the magnetic cylinder 15 and the coil support 19, an air gap 24 and between the coil support 19 and the outer housing shell 11, an air gap 25 are arranged ,
  • a radially inwardly jumping spokes 21 formed star carrier 20 is provided at the side facing away from the closed end 12 of the housing of the coil carrier 20, wherein in the center of the support star 20 axially projecting through the recess 14 of the end face 13 of the housing 10 ram 22 and with the support star 20 is connected.
  • FIG. 1 is only schematically arranged and shown somewhat more clearly in Figure 8, two of a suitable material, preferably made of copper or aluminum wire coils 23 are wound on the bobbin 19 in the embodiment shown in Figure 1, wherein the coils 23 respectively axially overlap the pole plates 17 and are wound in opposite directions.
  • a suitable material preferably made of copper or aluminum wire coils 23 are wound on the bobbin 19 in the embodiment shown in Figure 1, wherein the coils 23 respectively axially overlap the pole plates 17 and are wound in opposite directions.
  • the size dimensions of permanent magnet 16 and pole disks 17 are matched to one another such that the end-side cross-sectional area of the permanent magnet corresponds at least to the circumferential area of the respective pole disk. Shortened this is given when the axial magnet length and the axial length of the pole plates 17 correspond to approximately half the diameter of the permanent magnet 16. Longer pole discs are quite possible within the scope of the inventive concept. Furthermore, each of the two coils 23 must overlap the width of the associated pole disk 17 by the stroke amplitude of the bobbin 19, so that during the entire movement sequence of the bobbin 19, the maximum force is achieved.
  • the two coils 23 are axially spatially separated from one another by a non-conducting distance region 30 of the coil carrier 19, but are electrically connected to one another via the winding wire. Since the two coils 23 are also wound in opposite directions, a mutual inductance is avoided.
  • the air gap 24 should be sized so wide that between the parts 15, 19 a laminar lubricating film without displacement of the coil carrier 19th or adjusts the magnetic cylinder tube surrounding fluid.
  • magnetic module having the described structure of the permanent magnet 16 generates in the entire, between magnetic cylinder tube 15 and housing shell 11 existing air gap 24, 25 in the coil 23 a radially from the inside out directed homogeneous magnetic field, which according to the flow direction 31 can close over the magnetically conductive, annular housing shell 11.
  • the DC-current-carrying coils 23 are deflected in a homogeneous magnetic field with a force proportional to the coil current, the magnetic air gap induction and the number of turns of the two coils 23 transversely to the magnetic field direction.
  • the current arranged on the movable coil support 19 coils 23 a current through highly flexible, not shown in detail cable is supplied.
  • the embodiment shown in Figure 2 differs from the embodiment shown in Figure 1 essentially in that a multiple arrangement of resulting from Figure 1 magnetic modules with a central permanent magnet 16 and outer pole plates 17 is met in the magnetic cylinder tube 15, wherein the two each spaced permanent magnet 16 associated pole plates 17 are combined into a single, consequently wider pole plate, wherein the wider pole plates 17 associated coils 23 a corresponding width plus the provided and the stroke amplitude of the bobbin corresponding overlap is attached.
  • the embodiment shown in Figure 3 basically corresponds in its construction to the embodiment shown in Figure 1, wherein at the outer ends of the magnetic cylinder tube 15 each have an additional edge magnet 26 is arranged in its magnetic strength on the balance of occurring at the ends of the magnetic cylinder tube 15 magnetic Stray flux is tuned such that this leakage flux is compensated by the magnetic flux of the edge magnets 26. Therefore, the relationship for the ratio of the size of permanent magnets 16 and associated pole plates 17 is not the same for the design of the edge magnets.
  • the edge magnets 26 In order for the edge magnets 26 to be effective, they must be connected to the housing 10 made of magnetically conductive material, so that can set a corresponding magnetic flux. This is realized on the side facing away from the plunger 22 of the magnetic cylinder tube 15 characterized in that the relevant end face 12 of the housing 10 and the correspondingly arranged spacer 18 now consist of a magnetically conductive material.
  • radially inwardly jumping magnetic conductive holder 27 are provided with thereto axially attached claw poles 28 to form a magnetically conductive connection to the edge magnet arranged there, wherein the claw poles 28 between the spokes 21 of the support star 20 of the bobbin 19th grab ( Figure 4) and get into contact with the outer edge magnet 26 of the magnetic cylinder 15.
  • the magnetically conductive holders 27 may, for example, also be designed as a peripheral disk connected to the housing jacket 11, starting from the claw poles.
  • the claw poles 28 are suitable for forming an anti-twist device for the carrier star 20 of the coil carrier 19 with plunger 22 or to serve as a holder for the sensor of a position measuring system.
  • FIG. 6 Another possibility to use the advantages of the actuator shown in Figures 3 and 4 is shown in Figure 6, in which the housing 10 is open on both sides with correspondingly arranged on both sides claw poles 28, so that the bobbin 19 according to both end faces on a supporting star 20 can be provided with projecting from both sides of the housing 10 ram 22; This is an actuation of connected units in both directions of movement of the bobbin 19 in the housing 10 is given. Since, in turn, the magnetic cylinder tube 15 is clamped firmly on the mutually arranged, housing-fixed claw poles 28, the two-sided support of the magnetic cylinder tube 15 is realized without the bilateral actuation is hindered on the two-sided plunger 22.
  • FIG. 7 Another difference between the embodiments shown in Figure 6 and in Figures 3 and 5 is that in the embodiment of Figure 6, a central pole plate 17 is arranged, on both sides of each a permanent magnet 16 is located in the magnetic cylinder tube 15. These outer permanent magnets 16 at the same time take over the function of the edge magnets still provided in the exemplary embodiment according to FIGS. 3 and 5, so that these edge magnets can be dispensed with, with the otherwise identical force effect. This results in a saving of magnetic material. As can be seen from FIG. 7, such an arrangement can also be realized with a sequence of a plurality of pole discs 17 and permanent magnets 16.
  • FIG. 8 shows by way of example how a coil carrier 19 can be formed.
  • recesses 35 are inserted in the illustrated embodiment in the outer surface of the bobbin, in which the coils 23 are wound.
  • the recesses 35 or coils 23 are coated or potted with a protective layer 36, so that a correspondingly smooth outer circumference for the coil carrier 19 results, which allows the setting of small air gaps 24, 25.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnets (AREA)
  • Valve Device For Special Equipments (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fluid-Driven Valves (AREA)

Claims (23)

  1. Actionneur destiné à actionner une vanne, comportant un corps de boîtier (11) réalisé dans un matériau magnétoconducteur, un porte-bobine (19), qui est muni d'une queue d'actionnement (22) et est mobile dans le corps de boîtier (11) moyennant la formation d'un entrefer (25) qui en résulte, et qui porte au moins une bobine (23), traversée par le courant et enroulée autour dudit porte-bobine, et comportant un cylindre magnétique (15), qui est entouré par le porte-bobine (19) moyennant la formation d'un entrefer (24) et à l'intérieur duquel est agencée dans le sens axial une succession d'un aimant permanent (16) et d'un disque polaire (17) réalisé dans un matériau magnétoconducteur, la largeur axiale de la bobine (23) étant plus grande que la dimension axiale du disque polaire (17) associé à la bobine, caractérisé en ce que les dimensions de l'aimant permanent (16) et du disque polaire (17) sont ajustées entre elles de telle sorte que la surface de la section du côté frontal de l'aimant permanent (16) correspond au moins à la surface périphérique d'un disque polaire (17) adjacent, et en ce que la largeur de la bobine (23) associée au disque polaire (17) couvre la largeur du disque polaire (17) sur une distance égale à l'amplitude de levage du porte-bobine (19), et en ce que l'actuateur destiné à actionner une vanne conçue pour le domaine de l'hydraulique est réalisé par le fait que le porte-bobine (19) est mobile dans un liquide hydraulique et le porte-bobine (19) comporte des évidements (35) destinés à recevoir les bobines (23), de telle sorte que, entre le porte-bobine (19) et le tube cylindrique magnétique (15), il se forme un film de lubrification laminaire dans le sens d'un palier de glissement du porte-bobine (19) sur le tube cylindrique magnétique (15) sans refoulement du liquide hydraulique environnant.
  2. Actionneur selon la revendication 1, caractérisé en ce que le porte-bobine (19) en forme de fourreau est muni sur l'une de ses faces frontales d'un support en étoile (20), qui est muni de rayons (21) en saillie radialement vers l'intérieur et au centre duquel est attaché un poussoir (22) en saillie hors du boîtier (10) en formant une queue d'actionnement.
  3. Actionneur selon la revendication 1 ou 2, caractérisé en ce que le corps de boîtier (11) est une partie intégrante d'un boîtier (10) fermé et logeant le porte-bobine (19) mobile, ainsi que le tube cylindrique magnétique (15), le poussoir (22) passant à travers un évidement (14) ménagé dans la paroi frontale (13) associée du boîtier (10).
  4. Actionneur selon la revendication 2 ou 3,
    caractérisé en ce que la paroi frontale (12) du boîtier (10), détournée du support en étoile (20) du porte-bobine (19), est réalisée dans un matériau magnétoconducteur, et un écarteur (18) réalisé dans un matériau non magnétoconducteur est agencé sur l'extrémité du tube cylindrique magnétique (15), orientée vers la paroi frontale (12).
  5. Actionneur selon la revendication 2 ou 3, caractérisé en ce que la paroi frontale (12) du boîtier (10) est réalisée dans un matériau non magnétoconducteur.
  6. Actionneur selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'un module magnétique est formé par un aimant permanent (16), agencé au milieu du tube cylindrique magnétique (15), et par deux disques polaires (17) agencés du côté extérieur, sachant qu'à chaque disque polaire (17) dans le module magnétique est associée une bobine (23) sur le porte-bobine (19), les bobines (23) d'un module magnétique étant enroulées en sens opposé et étant reliées entre elles mécaniquement et électriquement.
  7. Actionneur selon la revendication 6, caractérisé en ce qu'un module magnétique est agencé à l'intérieur du corps de boîtier (11).
  8. Actionneur selon la revendication 6, caractérisé en ce que plusieurs modules magnétiques sont agencés l'un derrière l'autre dans le sens axial à l'intérieur du corps de boîtier (11), les pôles identiques de l'aimant permanent (16) de chaque module magnétique étant situés face à face dans le sens axial.
  9. Actionneur selon la revendication 8, caractérisé en ce que les disques polaires (17) situés du côté extérieur de chaque module magnétique sont assemblés pour former un disque polaire de jonction d'un seul tenant.
  10. Actionneur selon l'une quelconque des revendications 1 à 9, caractérisé en ce que sur les extrémités du tube cylindrique magnétique (15), formées par les disques polaires (17) extérieurs du module magnétique ou des modules magnétiques, est agencé respectivement un aimant d'extrémité (26), dont l'intensité est adaptée à la compensation du flux de fuite magnétique généré aux extrémités du tube cylindrique magnétique (15) et qui est relié au corps de boîtier (11) réalisé en matériau magnétoconducteur.
  11. Actionneur selon la revendication 10, caractérisé en ce que, en présence d'un boîtier (10) ouvert d'un côté dans la zone du poussoir (22), l'aimant d'extrémité (26) intérieur, situé dans le tube cylindrique magnétique (15) sur le côté fermé du boîtier, est en appui contre la paroi frontale (12) du boîtier (10), réalisée en matériau magnétoconducteur.
  12. Actionneur selon la revendication 10 ou 11, caractérisé en ce que le boîtier (10) sur sa face frontale (13) ouverte comporte des pôles à griffes (28) en matériau magnétoconducteur, qui s'avancent en saillie vers l'intérieur dans le sens radial et s'engagent dans le sens axial entre les rayons (21) du support en étoile (20), et qui sont reliés par adhérence magnétique avec les aimants d'extrémité (26) du tube cylindrique magnétique (15).
  13. Actionneur selon l'une quelconque des revendications 10 à 12, caractérisé en ce que le corps de boîtier (11) est réalisé sous forme ouverte des deux côtés avec les pôles à griffes (28) réalisés sur ses deux extrémités, et le porte-bobine (19) mobile dans le corps de boîtier (11) comporte sur chacune des deux faces frontales un support en étoile (20) avec le poussoir (22) en saillie sur ce dernier.
  14. Actionneur selon la revendication 12 ou 13, caractérisé en ce que les pôles à griffes (28) sont réalisés selon une forme correspondant aux interstices compris entre les rayons (21) du support en étoile (20).
  15. Actionneur selon l'une quelconque des revendications 12 à 14, caractérisé en ce que les pôles à griffes (28) forment une protection anti-rotation pour le support en étoile (20) muni du poussoir (22).
  16. Actionneur selon la revendication 15, caractérisé en ce qu'au moins un pôle à griffes (28) comporte une saillie en appui contre le rayon (21) correspondant du support en étoile (20).
  17. Actionneur selon la revendication 15, caractérisé en ce qu'au moins un rayon (21) du support en étoile (20) comporte une saillie en appui contre le pôle à griffes (28) correspondant.
  18. Actionneur selon l'une quelconque des revendications 12 à 17, caractérisé en ce qu'un pôle à griffes (28) et/ou le tube cylindrique magnétique (15) forment un support pour le capteur d'un système de mesure du déplacement.
  19. Actionneur selon l'une quelconque des revendications 12 à 18, caractérisé en ce qu'un module magnétique est formé par un disque polaire (17), agencé au milieu dans le tube cylindrique magnétique (15), et par deux aimants permanents (16), agencés chacun du côté extérieur, les pôles identiques des aimants permanents (16) étant situés face à face dans le sens axial et une bobine (23), associée au disque polaire (17) agencé au milieu, étant enroulée sur le porte-bobine (19).
  20. Actionneur selon la revendication 19, caractérisé en ce qu'une succession de disques polaires (17) et d'aimants permanents (16), agencés en alternance, est disposée entre deux aimants permanents (16) extérieurs.
  21. Actionneur selon l'une quelconque des revendications 12 à 20, caractérisé en ce qu'entre le support en étoile (20) du porte-bobine (19) et l'extrémité frontale du tube cylindrique magnétique (15) est monté un ressort précontraint, destiné à solliciter le poussoir (22) dans sa position de couplage avec la vanne raccordée à l'actionneur.
  22. Actionneur selon l'une quelconque des revendications 1 à 21, caractérisé en ce que les bobines (23), enroulées dans les évidements (35) du porte-bobine (19), sont revêtues d'une couche de protection (36), de telle sorte que le porte-bobine (19) muni des bobines (23) possède une surface périphérique lisse.
  23. Actionneur selon l'une quelconque des revendications 1 à 22, caractérisé en ce que sur la face intérieure du corps de boîtier (11) sont réalisées des rainures, qui sont orientées dans le sens longitudinal de ce dernier et qui sont prévues pour le passage du fluide refoulé lors du mouvement axial du porte-bobine (19) dans le corps de boîtier (11).
EP01996867A 2000-11-14 2001-11-14 Actionneur pour soupape hydraulique Expired - Lifetime EP1334493B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10056332 2000-11-14
DE10056332 2000-11-14
PCT/EP2001/013200 WO2002041332A1 (fr) 2000-11-14 2001-11-14 Actionneur pour soupape hydraulique

Publications (2)

Publication Number Publication Date
EP1334493A1 EP1334493A1 (fr) 2003-08-13
EP1334493B1 true EP1334493B1 (fr) 2007-03-21

Family

ID=7663218

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01996866A Withdrawn EP1334492A1 (fr) 2000-11-14 2001-11-14 Actionneur fonctionnant au moyen d'un ensemble bobine mobile
EP01996867A Expired - Lifetime EP1334493B1 (fr) 2000-11-14 2001-11-14 Actionneur pour soupape hydraulique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01996866A Withdrawn EP1334492A1 (fr) 2000-11-14 2001-11-14 Actionneur fonctionnant au moyen d'un ensemble bobine mobile

Country Status (10)

Country Link
US (2) US6975195B2 (fr)
EP (2) EP1334492A1 (fr)
JP (1) JP4052384B2 (fr)
KR (1) KR100840842B1 (fr)
CN (1) CN1225751C (fr)
AT (1) ATE357731T1 (fr)
AU (1) AU2002217028A1 (fr)
CA (1) CA2441997C (fr)
DE (1) DE50112241D1 (fr)
WO (2) WO2002041331A1 (fr)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060002898A (ko) 2003-04-03 2006-01-09 파커 하니핀 게엠베하 고압 유체로 채워진 압력 챔버로부터 측정 데이터를검출하고 전송하기 위한 장치
WO2005098299A1 (fr) 2004-03-31 2005-10-20 Parker Hannifin Gmbh & Co. Kg Systeme de soupape comportant un systeme de capteur de deplacement encapsule
DK176547B1 (da) * 2004-06-28 2008-07-28 Vid Aps Transducer til overvågning af positionen af et bevægeligt legeme
US7461670B1 (en) * 2004-07-23 2008-12-09 Curtis Roys Cycle indicator for fluid distribution systems
US7537437B2 (en) * 2004-11-30 2009-05-26 Nidec Sankyo Corporation Linear actuator, and valve device and pump device using the same
US8374887B1 (en) 2005-02-11 2013-02-12 Emily H. Alexander System and method for remotely supervising and verifying pharmacy functions
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AU2002217028A1 (en) 2002-05-27
US7164336B2 (en) 2007-01-16
EP1334492A1 (fr) 2003-08-13
US20040003849A1 (en) 2004-01-08
DE50112241D1 (de) 2007-05-03
KR20030064410A (ko) 2003-07-31
CN1486496A (zh) 2004-03-31
KR100840842B1 (ko) 2008-06-23
CA2441997A1 (fr) 2002-05-23
JP2004514393A (ja) 2004-05-13
EP1334493A1 (fr) 2003-08-13
US6975195B2 (en) 2005-12-13
US20040051607A1 (en) 2004-03-18
CA2441997C (fr) 2011-03-29
WO2002041332A1 (fr) 2002-05-23
CN1225751C (zh) 2005-11-02
ATE357731T1 (de) 2007-04-15
JP4052384B2 (ja) 2008-02-27
WO2002041331A1 (fr) 2002-05-23

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