EP2483584A1 - Soupape présentant un sac magnétique - Google Patents

Soupape présentant un sac magnétique

Info

Publication number
EP2483584A1
EP2483584A1 EP10739893A EP10739893A EP2483584A1 EP 2483584 A1 EP2483584 A1 EP 2483584A1 EP 10739893 A EP10739893 A EP 10739893A EP 10739893 A EP10739893 A EP 10739893A EP 2483584 A1 EP2483584 A1 EP 2483584A1
Authority
EP
European Patent Office
Prior art keywords
valve
valve needle
anchor
electromagnetic
anchor element
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Withdrawn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
EP10739893A
Other languages
German (de)
English (en)
Inventor
Rainer Walter
Ralph Engelberg
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2483584A1 publication Critical patent/EP2483584A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0614—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature
    • F02M51/0617—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of electromagnets or fixed armature having two or more electromagnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
    • F02M51/066—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
    • 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
    • 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
    • H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics
    • 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
    • Y10T137/0318—Processes

Definitions

  • the present invention relates to a valve for controlling a fluid passage with improved dynamics and a method for controlling a
  • Fluid passage by means of a valve needle or a slider, wherein in the de-energized state, the fluid passage may be open or closed.
  • Valves with magnetic circuits as electromagnetic drive are known in various designs and differ for example in terms of their switching times, their valve lifts, the function of their magnetic circuits such as valves with a proportional or 2-point solenoid or with respect to the design of their magnetic circuits such as magnetic circuits with a diving or flat anchor.
  • the magnetic circuit operates against a return spring.
  • the dynamics of the valve with an electromagnetic drive is technically limited.
  • a large valve lift always comparatively longer switching times result because the valve needle more time to put on and Falling required and the achievable magnetic force at large strokes due to the magnetic residual air gap is correspondingly low.
  • the large valve lift also has an influence on the speed of the magnetic field build-up and on the magnetic force. This is especially true for flat armature magnets, which can generate relatively large forces and are therefore particularly suitable in terms of dynamics.
  • valve according to the invention for controlling a fluid passage in contrast, has the advantage that, despite the use of inexpensive electromagnetic drives in the valve, the dynamics of the valve are significantly improved. In particular, the valve according to the invention can still switch quickly even with large strokes. This is inventively achieved in that the valve has a valve needle or a valve spool, the
  • Anchor elements is actuated from at least two different electromagnetic drives. Both electromagnetic drives, and thus both anchor elements are arranged in series and can be reset together with a return element.
  • the basic idea of the series arrangement is to increase the actuation force for the valve needle applied by an electromagnetic drive by means of at least one further electromagnetic drive arranged in series.
  • valve needle Create actuating force that moves the valve needle with a high dynamic and adjusts the valve to control the fluid passage.
  • the speed of the valve needle can be over the number of series connected
  • electromagnetic drives are adjusted so that the dynamics of the
  • Valve can be customized to the particular application. On This way, a cost-effective solution for a highly dynamic working valve is provided with an electromagnetic drive.
  • the first and second anchor element may be connected to each other in loose contact, so that the anchor elements can separate from each other.
  • an optimization of the entire mass to be moved is achieved from anchor elements and valve needle, since only those anchor elements must be moved, the associated electromagnetic drives also exerts a moving force on them.
  • a predetermined number of electromagnetic drives in the valve according to the invention may be arranged in series, but the dynamics of the valve can be adjusted via a targeted activation of individual electromagnetic drives.
  • the second anchor element can actuate the valve needle via the first anchor element.
  • the number of parts can be kept very low.
  • the electromagnetic drives may preferably be arranged as a stack, so that the valve according to the invention can be realized inexpensively by simply layers of the drives.
  • the electromagnetic drives can be layered from the mounting side, so that the individual electromagnetic drives can be tested in advance on their functioning in the production.
  • valve according to the invention can also be maintained more easily, since defective electromagnetic drives can simply be removed from the stack and replaced by functional new drives.
  • the anchor elements of the electromagnetic drives can be identical, so that the valve according to the invention can be produced by a simple layers of identical elements even cheaper.
  • the electromagnetic drives may be arranged in a common housing, such as a pipe, so that the electromagnetic drives and the housing are provided as a kit and the
  • Valve according to the invention not only in the production but also subsequently can be arbitrarily adapted to different applications and needs of the user.
  • the valve according to the invention can thus both in large-scale production and at home by the end user without effort and special technical knowledge
  • the electromagnetic drives can be spaced apart so that each anchor element can perform an additional stroke when the
  • a partial lift for the valve needle can be assigned to each individual electromagnetic drive in the valve according to the invention, so that the valve needle executes a partial lift when the armature element corresponds to the partial lift
  • Proportional solenoids combine what is a technology breakthrough, as high dynamics in combination with variable strokes were previously reserved exclusively for valves with piezoelectric drives.
  • development of the invention represents a simple solution, since the partial strokes of the valve together with the inventive arrangement of
  • Electromagnetic actuators in series with simple magnetic circuits and windings can be realized without a division of a single
  • the distances of the electromagnetic drives are adjusted by means of adjusting rings between the electromagnetic drives.
  • the valve has a
  • Control unit that individually control the individual electromagnetic drives and possibly even can drive directly.
  • the valve can perform different strokes by individually controlling electromagnetic drives.
  • electromagnetic drives are driven individually, since not only the dynamics of the switching operation of the valve needle can be optimized but also partial strokes of the valve needle in stages of the individual strokes of the individual electromagnetic drives are adjustable.
  • control unit also offers the option of all
  • the control unit can, for example, for stepwise input or
  • the electromagnetic drives may preferably be
  • the electromagnetic drive which is in direct contact with the valve needle, preferably has no own return element to be there
  • Anchor element moves. Then the valve needle is moved back with a return element to its original position.
  • valve needle at least after its actuation by means of the second anchor element by the first anchor element further actuated or held, so that only the mass of the first anchor element and the mass of the valve needle to move the valve needle must be driven and so to optimize the moving Mass in one
  • the second anchor element when holding or
  • Initial position can be reduced, so that when moving the valve needle in the other direction also only the first anchor element and the
  • Needle valve must be driven and so a further optimization of the mass to be moved is achieved.
  • Drive elements - touch the valve needle can be operated at least partially together by means of the first and second anchor element, so that when driving the valve needle, a particularly high driving force is achieved, which further improves the dynamics of the valve needle.
  • an n th anchor element with n> 2 can be in series with a previous anchor element ⁇ -7 th and actuate the valve needle over all previous, ⁇ -7 th, series-connected anchor elements, so that the
  • Dynamic improvement of the valve needle can be increased by any number of additional forces.
  • the valve needle can thereby at least after its actuation by means of the n-th anchor element by means of at least one of the ⁇ -7-th
  • Anchor elements continue to be operated or held. In this way, any number of partial strokes can be realized according to the invention.
  • FIG. 1 shows a first embodiment of the valve according to the invention
  • Figure 2 shows a second embodiment of the valve according to the invention
  • Figure 3 is a circuit diagram for a control unit for operating the second
  • FIG. 1 shows a first embodiment of a valve 2 according to the invention with a two-stage magnetic stack.
  • a valve 2 can
  • the valve 2 has a valve needle 4, a first electromagnetic drive 6 and a second electromagnetic drive 8. While the first electromagnetic drive 6 is provided for direct actuation of the valve needle 4, the second electromagnetic drive 8 actuates the valve needle via the first electromagnetic drive 6.
  • Main return spring 10 the first and the second electromagnetic drive 6, 8 can be moved back together in a zero position.
  • the first electromagnetic drive 6 has a first magnetic circuit 12, a first winding 14 and a first anchor element 16.
  • the first winding 14 can be energized and then serves as a magnetic source voltage, which flows through the first magnetic circuit 12.
  • the first magnetic circuit 12 has pole pieces 13, from which the magnetic field can emerge from the first magnetic circuit 12.
  • the first anchor member 16 is magnetized so that it through the the pole pieces 13 exiting magnetic field can be used to the pole pieces 13 when the first winding 14 is energized.
  • the second electromagnetic drive 8 has analogous to the first
  • Winding 20 and a second anchor member 22 work in the same way as their analogous elements in the first electromagnetic
  • Both electromagnetic drives 6, 8 are stacked in a tube 26 and are separated by a spacer 25 in the form of a setting. In that way between the first and second
  • Electromagnetic drive 6, 8 created free space, the first anchor member 16 can move freely.
  • the arrangement shown in Figure 1 can be arbitrarily extended, depending on how many elements in the tube 26 still find room.
  • the armature elements 16, 22 and the valve needle 4 are arranged in series on a common axis X-X.
  • the state of the valve 2 shown in FIG. 1 shows the position of the second anchor element 22 in the tightened state, while the first winding 14 of the first anchor element 16 is de-energized, so that the
  • Valve needle 4 is held exclusively by the second anchor member 22 via the first anchor member 16. Good to recognize that the valve needle 4 has covered in this way only part of their full mobile stroke H. For advancing the valve needle 4 to its full lifting height H, therefore, only the first winding 14 must be energized.
  • FIG. 2 shows a second exemplary embodiment of a second valve 28 according to the invention with a three-stage magnetic stack in different embodiments
  • valve 28 shown in Figure 2 is compared to the valve 2 shown in Figure 1 expanded by a third electromagnetic drive 30, which is constructed in the same manner as the second electromagnetic drive 8. It is spaced from the second electromagnetic drive 8 via a further spacer 32, so that the anchor element 22 of the second
  • electromagnetic drive 8 can move freely.
  • the spacers 25, 32 are selected so that the distance between the first and second electromagnetic drive 6, 8 is greater than the distance between the second and third electromagnetic drive 8, 30th
  • the valve needle 4 can perform a maximum stroke H, which can be achieved by energizing at least the winding 14 of the first electromagnetic drive 6. The more windings are additionally energized in the valve 28, the faster the valve needle 4 performs the maximum stroke H.
  • valve needle 4 By selectively energizing the individual windings, the valve needle 4 can also partial strokes between its zero position (FIG. 2a) and the maximum
  • valve needle 4 keeps a fluid passage completely closed. All windings of the electromagnetic drives 6, 8, 30 are de-energized, so that the spring force of the main return spring 10 holds the valve needle 4 and all anchor elements in their zero position.
  • Anchor elements 16, 22, 31 are in loose contact with each other.
  • Anchor elements moved to a position just above the zero position.
  • the Tightening delay time is determined by the anchor element 31 of the third electromagnetic drive 30. Since this only has to generate a partial stroke, the design can be compact and correspondingly highly dynamic.
  • the windings 14, 20 of the first and second electromagnetic drive 6, 8 can already be energized at this time to build up a magnetic field and continue the lifting movement of the valve needle 4 without distortion.
  • electromagnetic actuator 30 has reached its final position, it moves in the transition from state b) to state c) no longer and stops in its stop position. Thus, the moving mass was reduced.
  • Valve needle 4 are moved. Thus, the moving mass was further reduced.
  • Single return spring 33 its anchor member 31 back to the zero position.
  • FIG. 3 a control unit for energizing the windings of FIG.
  • Signal unit 36 outputs switching signals 38, 40, 42, which are provided for controlling switches 44, 46, 48. Each switch thus controls the power supply to one of the windings of the electromagnetic drives 8, 6, 30, so that the valve needle according to Figure 2 can be moved. Series resistors 50, 52, 54 are provided to protect the windings. As an energy source serves a
  • the electromagnetic drives 6, 8, 30 are individually controlled, so that the valve 28 can perform different sized partial strokes or a full stroke.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

L'invention concerne une soupape de commande d'un passage de fluide. Un pointeau de soupape (4) ou un coulisseau de soupape est actionné par l'intermédiaire d'un premier entraînement électromagnétique (6) présentant un premier élément d'armature (16) et ramené en position initiale par l'intermédiaire d'un élément de rappel (10). En outre, un second entraînement électromagnétique (8) présente un second élément d'armature (22) pour l'actionnement du pointeau de soupape (4). Selon l'invention, le premier et le second entraînement électromagnétique (6, 8) sont agencés en série.
EP10739893A 2009-09-30 2010-07-29 Soupape présentant un sac magnétique Withdrawn EP2483584A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009045174A DE102009045174A1 (de) 2009-09-30 2009-09-30 Magnetstack für hochdynamische Ventile
PCT/EP2010/061041 WO2011038952A1 (fr) 2009-09-30 2010-07-29 Soupape présentant un sac magnétique

Publications (1)

Publication Number Publication Date
EP2483584A1 true EP2483584A1 (fr) 2012-08-08

Family

ID=42813363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10739893A Withdrawn EP2483584A1 (fr) 2009-09-30 2010-07-29 Soupape présentant un sac magnétique

Country Status (6)

Country Link
US (1) US20120241011A1 (fr)
EP (1) EP2483584A1 (fr)
KR (1) KR20120081112A (fr)
CN (1) CN102575791B (fr)
DE (1) DE102009045174A1 (fr)
WO (1) WO2011038952A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756297A (zh) * 2012-06-25 2012-10-31 天津大学 利用双向电流进行进给控制的电磁驱动器
EP2863042B1 (fr) * 2013-10-15 2016-06-22 Continental Automotive GmbH Soupape d'injection
IT201600129620A1 (it) * 2016-12-21 2018-06-21 Bosch Gmbh Robert Gruppo e metodo di pompaggio per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna
DE102019104396B4 (de) * 2019-02-21 2024-06-13 Samson Aktiengesellschaft Ventilaktor und Stellventil mit hintereinander geschalteten Hubmagneten

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030042456A1 (en) * 2001-09-04 2003-03-06 Tadaaki Makino Electromagnetic fluid controller
EP2295785A1 (fr) * 2009-07-29 2011-03-16 Delphi Technologies Holding S.à.r.l. Injecteur de carburant

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190608A (en) * 1962-02-07 1965-06-22 Kromschroeder Ag G Electromagnetically controlled valve
AT372417B (de) * 1980-08-21 1983-10-10 Zimmer Johannes Gmbh Spritzduese
DE3310866A1 (de) * 1983-03-25 1984-09-27 Robert Bosch Gmbh, 7000 Stuttgart Magnetventil mit mehreren betriebsstellungen
CA2087392C (fr) * 1992-04-27 1998-10-27 Russell J. Vanrens Dispositif de commande a solenoide double
DE10155271A1 (de) * 2001-11-09 2003-05-28 Bosch Gmbh Robert Common-Rail-Injektor
US6910644B2 (en) * 2001-12-26 2005-06-28 Toyota Jidosha Kabushiki Kaisha Solenoid-operated fuel injection valve
JP4435727B2 (ja) * 2005-10-14 2010-03-24 ナブテスコ株式会社 ブレーキ制御装置
DE102007013447A1 (de) * 2007-03-21 2008-09-25 Ufermann, Rüdiger Elektromagnetische Ventilsteuerung für Brennkraftmaschinen
FR2933140B1 (fr) * 2008-06-26 2011-11-11 Vianney Rabhi Dispositif de reglage du taux de compression a levee de bille pour moteur a taux de compression variable.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030042456A1 (en) * 2001-09-04 2003-03-06 Tadaaki Makino Electromagnetic fluid controller
EP2295785A1 (fr) * 2009-07-29 2011-03-16 Delphi Technologies Holding S.à.r.l. Injecteur de carburant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011038952A1 *

Also Published As

Publication number Publication date
CN102575791A (zh) 2012-07-11
DE102009045174A1 (de) 2011-04-07
KR20120081112A (ko) 2012-07-18
CN102575791B (zh) 2015-03-18
WO2011038952A1 (fr) 2011-04-07
US20120241011A1 (en) 2012-09-27

Similar Documents

Publication Publication Date Title
DE19610468B4 (de) Verfahren zur lastabhängigen Steuerung der Gaswechselventile an einer Kolbenbrennkraftmaschine
DE69109951T2 (de) Ventilstellglied mit hydraulischem Antrieb und pneumatischem Rücklauf.
DE2512480C3 (de) Ventilvorrichtung für einen hydraulisch betätigbaren elektrischen Leistungsschalter
DE10310448A1 (de) Elektromagnetische Stellvorrichtung
EP2336619A2 (fr) Soupape aved actionneur
WO2011038952A1 (fr) Soupape présentant un sac magnétique
DE10315282B4 (de) Schaltungsanordnung und Verfahren zur Ansteuerung eines bistabilen Magnetventils
EP2060721B1 (fr) Installation de porte de véhicule
EP3443571A1 (fr) Dispositif de réglage électromagnétique monostable sans courant et utilisation d'un tel dispositif
EP0748416B1 (fr) Commande électromagnétique d'une soupape dans un moteur a combustion interne
EP0904495B1 (fr) Dispositif a soupape, en particulier dispositif combine valve proportionnelle-distributeur
DE602004007420T2 (de) Elektromagnetischer Aktuator zur Betätigung eines Gaswechselventils an einer Kolbenbrennkraftmaschine und Brennkraftmaschine mit einem solchen Aktuator
DE102019110457B4 (de) Tristabiler elektromagnetischer Aktuator zur Ventilbetätigung und hydraulische Ventileinheit mit tristabilem elektromagnetischem Aktuator
DE102005039263A1 (de) Steuervorrichtung und Verfahren zum Ansteuern eines Aktuators für eine Getriebeschaltstelle
WO2010010037A1 (fr) Appareil de réglage électromagnétique
EP2601445B1 (fr) Groupe de valves à gaz
DE102015216766B3 (de) Antriebsvorrichtung
DE102014202428A1 (de) Elektrohydraulisches Schaltventil und Verfahren zum geräuscharmen Ansteuern eines solchen
DE19908899B4 (de) Elektromagnetventil
DE10250589A1 (de) Verfahren und Vorrichtung zum Betrieb eines Auslassventils eines Verbrennungsmotors zum Bremsen
DE19712062A1 (de) Elektromagnetische Stelleinrichtung
DE102015225858A1 (de) Schaltventil, insbesondere für ein Hydrauliksystem
DE102019217018A1 (de) Elektrisch betätigtes Ventil und Verfahren zu seinem Betreiben
DE102013105670A1 (de) Bistabiler Elektro-Permanent-Aktuator
EP0579932B1 (fr) Dispositif de commande de papillon de moteur à combustion interne

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

17P Request for examination filed

Effective date: 20120502

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20140225

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: 20150423