EP1288481B1 - Electromagnetical actuator - Google Patents
Electromagnetical actuator Download PDFInfo
- Publication number
- EP1288481B1 EP1288481B1 EP02015412A EP02015412A EP1288481B1 EP 1288481 B1 EP1288481 B1 EP 1288481B1 EP 02015412 A EP02015412 A EP 02015412A EP 02015412 A EP02015412 A EP 02015412A EP 1288481 B1 EP1288481 B1 EP 1288481B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- armature
- electromagnetic actuator
- actuator according
- magnetic core
- 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
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Classifications
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/66—Lift valves, e.g. poppet valves
Definitions
- the invention relates to an electromagnetic actuator, in particular for use in valves in the automotive sector, such.
- an electromagnetic actuator in particular for use in valves in the automotive sector, such.
- As exhaust gas recirculation valves, secondary air valves, etc. comprising a housing having an electrical connector, a yoke, a bobbin, a guide member, a magnetic core and an armature member which cooperates with a valve actuator comprises.
- Such an actuator is known for example from DE -A1 - 198 31 140 in conjunction with an exhaust gas recirculation valve.
- a cylindrical armature member acts as a linear magnet, which moves when energizing the bobbin, the valve closing member via a thus operatively connected valve actuator in an open position of the exhaust gas recirculation valve.
- the valve closing member is moved by means of a spring which acts on the valve actuator, in a closed position of the exhaust gas recirculation valve.
- valves in the automotive sector such.
- exhaust gas recirculation valves, secondary air valves, etc. it may come through the high thermal loads, as well as environmental influences to bonds, icing, etc. of the valve closure member.
- the valve can then no longer open and a functional fulfillment is then no longer guaranteed. This then results in most cases, a costly repair or replacement of the respective valve.
- the invention is therefore based on the object o. G. To avoid disadvantages.
- the anchor member has a first and a second anchor member, wherein the second anchor member is disc-shaped and is mounted in the non-energized state of the actuator by an air gap spaced from the first anchor member.
- the second anchor element acts on energizing the bobbin as a plate magnet, which abruptly attracts the first anchor element and in this way exerts a substantially increased opening force on the valve closure member.
- these act together as an anchor member in the manner of a linear magnet, which opens the valve closure member in a known manner.
- the same function can be ensured with a smaller coil. It has proven to be particularly advantageous that with an appropriate design of the bobbin, the magnetic core and the anchor elements of the air gap between 0.1 mm and 2.0 mm.
- a particularly simple design of the electromagnetic actuator is obtained when the valve actuator is positively or non-positively connected to the first anchor member.
- a sleeve member which is positively or non-positively connected to the second anchor member and movably mounted in the magnetic core, wherein the valve actuator slidably passes through the sleeve member, a particularly simple and compact construction of the electromagnetic actuator is realized.
- the sleeve member has an extension piece which rests in the initial position of the second anchor member against the underside of the magnetic core, the second anchor member is defined in a certain initial position in the de-energized state.
- a bearing bush for the movable mounting of the anchor member may be arranged in the guide element and in the magnetic core, which magnetically isolated at the same time the anchor elements.
- the invention relates to a valve with an electromagnetic actuator, wherein the valve actuator is in operative connection with a guided in a valve housing valve closure member, which in turn is connected via a coupling piece with the sleeve member, wherein a return spring acts on the coupling piece and is supported in the valve housing, such that the valve actuator, the valve closure member and the sleeve member are biased against the direction of movement in the de-energized state.
- FIG. 1 shows an electromagnetic actuator 1, which is particularly suitable for use in valves in the automotive sector, such.
- B exhaust gas recirculation valves, secondary air valves, etc.
- the electromagnetic actuator consists essentially of a housing 2 with an electrical connector 3, via which the actuator is energized and controlled.
- a magnetic yoke 4, a bobbin 5, a guide element 6, a magnetic core 7 and an armature element 8, which in the present embodiment consists of two anchor elements 9 and 10, are arranged in the housing.
- a bearing bush 11, 12 are respectively provided in the guide element and in the magnetic core.
- the first anchor element 9 is biased by means of a compression spring 13, which is supported on the housing 2 in a known manner in the direction of movement.
- the valve actuator 14 which is operatively connected to a valve closure member 15 shown in Figure 4, is connected to the first anchor member 9, for example by a screw connection. Furthermore, the valve actuator 14 extends through a sleeve 16 and is movably mounted in this sleeve 16 in the longitudinal direction.
- the sleeve 16 has an extension piece 17 which rests against the underside of the magnetic core 7.
- the second anchor member 10 is attached. The sleeve 16 itself is slidably mounted in the magnetic core 7 in the longitudinal direction.
- the first anchor element 9 and the second anchor element 10 are spaced apart by an air gap with the width of 0.5 mm. Furthermore, the underside of the valve actuator extends 0.5 mm beyond the bottom of the extension piece 17 of the sleeve 16 addition.
- Figure 2 shows the electromagnetic actuator 1 of Figure 1 shortly after the onset of energization of the bobbin 5.
- the second anchor member 10 which acts as a plate magnet due to its disc-shaped design, attracts the first armature element 9 with a very high magnetic force, and thus obtains a stroke of Valve actuator 14 of 0.5 mm at a much higher opening force than a Hubvor ein as a linear magnet.
- the armature member 8 consisting of the opposing armature elements 9 and 11, acts as a linear magnet, wherein the Hubvorwolf by the valve actuator 14 takes place together with the sleeve 16, as shown in Figure 3.
- FIG. 4 now shows an exhaust gas recirculation valve in a sectional view with the actuator 1 according to the invention.
- the exhaust gas recirculation valve 18 has a valve housing 19 which, in a known manner, supports the valve closing member 15, which in turn interacts with a valve seat 20 known per se.
- a return spring 21, which is supported in the valve housing 19, is biased against a coupling piece 22.
- the housing 2 and the valve housing 19 are connected to each other in the present embodiment by a rolled sheet metal ring 23.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Valve Device For Special Equipments (AREA)
Description
Die Erfindung betrifft einen elektromagnetischen Stellantrieb, insbesondere zum Einsatz bei Ventilen im Kfz-Bereich, wie z. B. Abgasrückführventile, Sekundärluftventile, etc., mit einem Gehäuse, das einen elektrischen Anschlußstecker, ein Magnetjoch, einen Spulenkörper, ein Führungselement, einen Magnetkern und ein Ankerorgan, das mit einem Ventilstellglied zusammenwirkt, aufweist.The invention relates to an electromagnetic actuator, in particular for use in valves in the automotive sector, such. As exhaust gas recirculation valves, secondary air valves, etc., comprising a housing having an electrical connector, a yoke, a bobbin, a guide member, a magnetic core and an armature member which cooperates with a valve actuator comprises.
Ein derartiger Stellantrieb ist beispielsweise aus der DE -A1 - 198 31 140 in Verbindung mit einem Abgasrückführventil bekannt. Dabei wirkt ein zylinderförmiges Ankerorgan als Linearmagnet, der bei Bestromung des Spulenkörpers das Ventilschließglied über ein damit in Wirkverbindung stehendes Ventilstellglied in eine Offen-Stellung des Abgasrückführventiles bewegt. Bei Unterbrechung der Bestromung des Spulenkörpers wird das Ventilschließglied mittels einer Feder, die auf das Ventilstellglied wirkt, in eine Zu-Stellung des Abgasrückführventiles zurück bewegt.Such an actuator is known for example from DE -A1 - 198 31 140 in conjunction with an exhaust gas recirculation valve. In this case, a cylindrical armature member acts as a linear magnet, which moves when energizing the bobbin, the valve closing member via a thus operatively connected valve actuator in an open position of the exhaust gas recirculation valve. When interrupting the energization of the bobbin, the valve closing member is moved by means of a spring which acts on the valve actuator, in a closed position of the exhaust gas recirculation valve.
Insbesondere bei Ventilen im Kfz-Bereich, wie z. B. Abgasrückführventile, Sekundärluftventile, etc. kann es durch die hohen thermischen Belastungen, sowie durch Umwelteinflüsse zu Verklebungen, Vereisungen, etc. des Ventilschließgliedes kommen. Das Ventil läßt sich dann nicht mehr öffnen und eine Funktionserfüllung ist dann nicht mehr gewährleistet. Dies hat dann in den meisten Fällen eine kostenintensive Reparatur oder einen Austausch des jeweiligen Ventils zur Folge.Especially for valves in the automotive sector, such. As exhaust gas recirculation valves, secondary air valves, etc., it may come through the high thermal loads, as well as environmental influences to bonds, icing, etc. of the valve closure member. The valve can then no longer open and a functional fulfillment is then no longer guaranteed. This then results in most cases, a costly repair or replacement of the respective valve.
Der Erfindung liegt daher die Aufgabe zugrunde, die o. g. Nachteile zu vermeiden.The invention is therefore based on the object o. G. To avoid disadvantages.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Ankerorgan ein erstes und ein zweites Ankerelement aufweist, wobei das zweite Ankerelement scheibenförmig ausgebildet ist und im nichtbestromten Zustand des Stellantriebes durch einen Luftspalt beabstandet vom ersten Ankerelement gelagert ist.This object is achieved in that the anchor member has a first and a second anchor member, wherein the second anchor member is disc-shaped and is mounted in the non-energized state of the actuator by an air gap spaced from the first anchor member.
Auf diese Weise wirkt das zweite Ankerelement bei Bestromung des Spulenkörpers als Plattenmagnet, der das erste Ankerelement schlagartig anzieht und auf diese Weise eine wesentlich erhöhte Öffnungskraft auf das Ventilschließglied ausübt. Nachdem das erste Ankerelement gegen das zweite Ankerelement anliegt, wirken diese zusammen als ein Ankerorgan in der Art eines Linearmagneten, der das Ventilschließglied auf bekannte Weise öffnet. Damit kann die gleiche Funktion mit einer kleineren Spule gewährleistet werden. Als besonders vorteilhaft hat es sich erwiesen, daß bei entsprechender Auslegung des Spulenkörpers, des Magnetkerns und der Ankerelemente der Luftspalt zwischen 0,1 mm und 2,0 mm beträgt. Eine besonders einfache Konstruktion des elektromagnetischen Stellantriebes ergibt sich, wenn das Ventilstellglied form- oder kraftschlüssig mit dem ersten Ankerelement verbunden ist. Dadurch, daß ein Hülsenelement vorgesehen ist, das form- oder kraftschlüssig mit dem zweiten Ankerelement verbunden ist und beweglich im Magnetkern gelagert ist, wobei das Ventilstellglied verschiebbar durch das Hülsenelement hindurchreicht, wird eine besonders einfache und kompakte Bauweise des elektromagnetischen Stellantriebes realisiert. Dadurch, daß das Hülsenelement ein Ansatzstück aufweist, das in Ausgangslage des zweiten Ankerelementes gegen die Unterseite des Magnetkerns anliegt, ist das zweite Ankerelement in einer bestimmten Ausgangsposition im unbestromten Zustand definiert.In this way, the second anchor element acts on energizing the bobbin as a plate magnet, which abruptly attracts the first anchor element and in this way exerts a substantially increased opening force on the valve closure member. After the first anchor member abuts against the second anchor member, these act together as an anchor member in the manner of a linear magnet, which opens the valve closure member in a known manner. Thus, the same function can be ensured with a smaller coil. It has proven to be particularly advantageous that with an appropriate design of the bobbin, the magnetic core and the anchor elements of the air gap between 0.1 mm and 2.0 mm. A particularly simple design of the electromagnetic actuator is obtained when the valve actuator is positively or non-positively connected to the first anchor member. Characterized in that a sleeve member is provided, which is positively or non-positively connected to the second anchor member and movably mounted in the magnetic core, wherein the valve actuator slidably passes through the sleeve member, a particularly simple and compact construction of the electromagnetic actuator is realized. Characterized in that the sleeve member has an extension piece which rests in the initial position of the second anchor member against the underside of the magnetic core, the second anchor member is defined in a certain initial position in the de-energized state.
Auch hat es sich als vorteilhaft erwiesen, daß die Unterseite des Ventilstellgliedes mit dem Ansatzstück abschließt oder darüber hinausreicht, um mit einem geringen Stellweg des Ventilstellgliedes ein Öffnen des Ventilschließgliedes zu gewährleisten. Um eine einwandfreie Führung des Ankerorgans und die nötige magnetische Isolierung zu gewährleisten, können im Führungselement und im Magnetkern eine Lagerbuchse zur beweglichen Lagerung des Ankerorgans angeordnet sein, die gleichzeitig die Ankerelemente magnetisch isoliert.It has also proved to be advantageous that the underside of the valve actuator terminates with the extension piece or extends beyond to ensure opening of the valve closure member with a small travel of the valve actuator. In order to ensure proper guidance of the anchor member and the necessary magnetic isolation, a bearing bush for the movable mounting of the anchor member may be arranged in the guide element and in the magnetic core, which magnetically isolated at the same time the anchor elements.
Darüber hinaus betrifft die Erfindung ein Ventil mit einem elektromagnetischen Stellantrieb, wobei das Ventilstellglied in Wirkverbindung mit einem in einem Ventilgehäuse geführten Ventilschließglied steht, das wiederum über ein Kopplungsstück mit dem Hülsenelement verbunden ist, wobei eine Rückstellfeder auf das Kopplungsstück wirkt und im Ventilgehäuse abgestützt ist, derart, daß das Ventilstellglied, das Ventilschließglied und das Hülsenelement gegen die Bewegungsrichtung im unbestromten Zustand vorgespannt sind.Moreover, the invention relates to a valve with an electromagnetic actuator, wherein the valve actuator is in operative connection with a guided in a valve housing valve closure member, which in turn is connected via a coupling piece with the sleeve member, wherein a return spring acts on the coupling piece and is supported in the valve housing, such that the valve actuator, the valve closure member and the sleeve member are biased against the direction of movement in the de-energized state.
Eine vorteilhafte Ausführung der Erfindung ist in der Zeichnung dargestellt, hierin zeigt:
Figur 1- eine Schnittansicht des erfindungsgemäßen Stellantriebes im unbestromten Zustand,
Figur 2- eine Schnittansicht des erfindungsgemäßen Stellantriebes im bestromten Zustand nach Anschlag des ersten Ankerelementes an das zweite Ankerelement im bestromten Zustand,
Figur 3- eine Schnittansicht des erfindungsgemäßen Stellantriebes im bestromten Zustand kurz vor Erreichen des Maximal-Hubes, und
Figur 4- eine Schnittansicht eines erfindungsgemäßen Ventils in Offen-Stellung.
- FIG. 1
- a sectional view of the actuator according to the invention in the de-energized state,
- FIG. 2
- a sectional view of the actuator according to the invention in the energized state after the stop of the first anchor element to the second anchor element in the energized state,
- FIG. 3
- a sectional view of the actuator according to the invention in the energized state shortly before reaching the maximum stroke, and
- FIG. 4
- a sectional view of a valve according to the invention in the open position.
Figur 1 zeigt einen elektromagnetischen Stellantrieb 1, der besonders geeignet ist zum Einsatz bei Ventilen im Kfz-Bereich, wie z. B. Abgasrückführventile, Sekundärluftventile etc. Der elektromagnetische Stellantrieb besteht im wesentlichen aus einem Gehäuse 2 mit einem elektrischen Anschlußstecker 3, über den der Stellantrieb bestromt und gesteuert wird. In dem Gehäuse sind des weiteren auf bekannte Weise ein Magnetjoch 4, ein Spulenkörper 5, ein Führungselement 6, ein Magnetkern 7 und ein Ankerorgan 8, das im vorliegenden Ausführungsbeispiel aus zwei Ankerelementen 9 und 10 besteht, angeordnet. Zur Führung des Ankerorgans 8 sind jeweils im Führungselement und im Magnetkern eine Lagerbuchse 11, 12 vorgesehen. Das erste Ankerelement 9 ist mittels einer Druckfeder 13, die sich am Gehäuse 2 auf bekannte Weise in Bewegungsrichtung abstützt, vorgespannt.Figure 1 shows an
Das Ventilstellglied 14, das mit einem in Figur 4 dargestellten Ventilschließglied 15 in Wirkverbindung steht, ist mit dem ersten Ankerelement 9, beispielsweise durch eine Schraubenverbindung, verbunden. Des weiteren reicht das Ventilstellglied 14 durch eine Hülse 16 hindurch und ist in dieser Hülse 16 in Längsrichtung beweglich gelagert. Die Hülse 16 weist ein Ansatzstück 17 auf, das gegen die Unterseite des Magnetkernes 7 anliegt. Auf der gegenübergelegenen Seite der Hülse 16 ist das zweite Ankerelement 10 befestigt. Die Hülse 16 an sich ist im Magnetkern 7 verschiebbar in Längsrichtung gelagert.The
Im vorliegenden Ausführungsbeispiel sind das erste Ankerelement 9 und das zweite Ankerelement 10 durch einen Luftspalt mit der Breite 0,5 mm voneinander beabstandet. Des weiteren reicht die Unterseite des Ventilstellgliedes 0,5 mm über die Unterseite des Ansatzstückes 17 der Hülse 16 hinaus.In the present embodiment, the
Figur 2 zeigt den elektromagnetischen Stellantrieb 1 aus Figur 1 kurz nach Einsetzen der Bestromung des Spulenkörpers 5. Das zweite Ankerelement 10, das aufgrund seiner scheibenförmigen Ausführung als Plattenmagnet wirkt, zieht das erste Ankerelement 9 mit sehr hoher Magnetkraft an, und erwirkt damit einen Hub des Ventilstellgliedes 14 von 0,5 mm bei einer wesentlich höheren Öffnungskraft als bei einer Hubvorstellung als Linearmagnet.Figure 2 shows the
Im weiteren Verlauf des bestromten Zustandes wirkt nun das Ankerorgan 8, bestehend aus den gegeneinander anliegenden Ankerelementen 9 und 11, als Linearmagnet, wobei die Hubvorstellung durch das Ventilstellglied 14 zusammen mit der Hülse 16 erfolgt, wie in Figur 3 dargestellt.In the further course of the energized state, the
Figur 4 zeigt nun ein Abgasrückführventil in Schnittansicht mit dem erfindungsgemäßen Stellantrieb 1. Das Abgasrückführventil 18 weist ein Ventilgehäuse 19 auf, das auf bekannte Weise das Ventilschließglied 15 lagert, das wiederum mit einem an sich bekannten Ventilsitz 20 zusammenwirkt. Eine Rückstellfeder 21, die sich im Ventilgehäuse 19 abstützt, ist gegenüber einem Kopplungsstück 22 vorgespannt. Das Kopplungsstück 22, das auch als Federelement ausgeführt sein kann, verbindet das Hülsenelement 16 mit dem Ventilschließglied 15. Demnach wirkt die Rückstellfeder 21 auf das Kopplungsstück 22 und damit auf das Hülsenelement 16, das Ventilschließglied 15 und das Ventilstellglied 14, die auf diese Weise im unbestromten Zustand in die Ausgangsstellung zurück bewegt werden. Das Gehäuse 2 und das Ventilgehäuse 19 sind im vorliegenden Ausführungsbeispiel durch einen umgerollten Blechring 23 miteinander verbunden.FIG. 4 now shows an exhaust gas recirculation valve in a sectional view with the
Claims (8)
- Electromagnetic actuator, in particular for use with valves in the motor vehicle sector, such as, for example, exhaust gas recirculation valves, secondary air valves, etc., with a housing (2) which comprises an electrical attachment plug (3), a magnet yoke (4), a coil body (5), a guide element (6), a magnetic core (7) and an armature member (8), which co-operates with a valve actuating member (15), wherein the armature member (8) comprises a first and a second armature element (9, 10), characterised in that the second armature element (10) is disc-shaped and, when the actuator is in the non-energised state, is mounted spaced apart by an air gap from the first armature element (9) such that, when the coil body (5) is energised, it acts as a plate magnet which abruptly attracts the first armature element (9) and thus exerts a substantially increased opening force on the valve closing member (14).
- Electromagnetic actuator according to Claim 1, characterised in that the air gap is preferably between 0.1 mm and 2.0 mm.
- Electromagnetic actuator according to Claim 1 or 2, characterised in that the valve actuating member (14) is positively or non-positively connected to the first armature element (9).
- Electromagnetic actuator according to any one of Claims 1 - 3, characterised in that a sleeve element (16) is provided which is positively or non-positively connected to the second armature element (10) and mounted in a mobile manner in the magnetic core (7), wherein the valve actuating member (14) extends in a displaceable manner through the sleeve element (16).
- Electromagnetic actuator according to Claim 4, characterised in that the sleeve element (16) comprises a shoulder piece (17), which lies against the underside of the magnetic core (7) when the second armature element (10) is in the starting position.
- Electromagnetic actuator according to Claim 5, characterised in that the underside of the valve actuating member (14) is flush with the shoulder piece (17) or extends beyond this.
- Electromagnetic actuator according to any one of the preceding Claims, characterised in that a bearing bush (11, 12) for mounting the armature member (8) in a mobile manner is disposed in the guide element (6) and in the magnetic core (7), which bush at the same time magnetically isolates the armature elements (9, 10).
- Valve with an electromagnetic actuator according to any one of Claims 4 - 7, characterised in that the valve actuating member (14) is actively connected to a valve closing member (15) which is guided in a valve housing (19) and is in turn connected via a coupling piece (22) to the sleeve element (16), wherein a return spring (21) acts on the coupling piece (22) and is supported in the valve housing (19) such that the valve actuating member (14), the valve closing member (15) and the sleeve element (16) are biased against the direction of movement in the non-energised state.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10143307A DE10143307A1 (en) | 2001-09-04 | 2001-09-04 | Electromagnetic actuator |
DE10143307 | 2001-09-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1288481A2 EP1288481A2 (en) | 2003-03-05 |
EP1288481A3 EP1288481A3 (en) | 2004-09-01 |
EP1288481B1 true EP1288481B1 (en) | 2006-08-30 |
Family
ID=7697661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02015412A Expired - Lifetime EP1288481B1 (en) | 2001-09-04 | 2002-07-11 | Electromagnetical actuator |
Country Status (4)
Country | Link |
---|---|
US (1) | US6719265B2 (en) |
EP (1) | EP1288481B1 (en) |
DE (2) | DE10143307A1 (en) |
ES (1) | ES2271153T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020134522A1 (en) | 2020-12-21 | 2022-06-23 | Kendrion (Villingen) Gmbh | Electromagnet for generating a linear movement |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004003599A (en) * | 2002-03-29 | 2004-01-08 | Denso Corp | Electromagnetic drive device |
BRPI0403705A (en) * | 2004-08-20 | 2006-04-04 | Wahler Metalurgica Ltda | linear solenoid valve egr |
US20070246677A1 (en) * | 2006-04-21 | 2007-10-25 | Bircann Raul A | Exhaust gas recirculation valve having self-centering bushing |
DE102006024728A1 (en) * | 2006-05-26 | 2007-11-29 | Pierburg Gmbh | Automotive valve |
US7741941B2 (en) * | 2006-11-30 | 2010-06-22 | Honeywell International Inc. | Dual armature solenoid valve assembly |
WO2009031007A2 (en) * | 2007-09-04 | 2009-03-12 | Toyota Jidosha Kabushiki Kaisha | A normally closed electromagnetic valve, a brake control system, a control method for a normally closed electromagnetic valve, and an electromagnetic valve |
KR100902793B1 (en) * | 2007-11-07 | 2009-06-12 | 주식회사 경동네트웍 | Flow control valve |
US20090212248A1 (en) * | 2008-02-27 | 2009-08-27 | Eugeniusz Kozak | Solenoid-actuated diaphragm valve |
DE102008011573B4 (en) | 2008-02-28 | 2013-02-14 | Danfoss A/S | Electromagnetic actuator and valve |
US8322376B2 (en) * | 2008-06-09 | 2012-12-04 | Bendix Commercial Vehicle Systems, Llc | Solenoid valve |
DE102018117074A1 (en) * | 2018-07-13 | 2020-01-16 | Svm Schultz Verwaltungs-Gmbh & Co. Kg | Electromagnetic actuator with armature disk |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1817592A (en) * | 1931-08-04 | sokoloff | ||
US2324642A (en) * | 1940-05-03 | 1943-07-20 | Honeywell Regulator Co | Electromagnetic valve operator |
US3473780A (en) * | 1967-05-11 | 1969-10-21 | Honeywell Inc | Control apparatus |
DE1806094B1 (en) * | 1968-10-30 | 1970-01-02 | Automatic Switch Co | Electromagnetic valve |
US3737141A (en) * | 1972-04-13 | 1973-06-05 | Control Concepts | Normally closed solenoid operated valve |
US3961298A (en) * | 1975-05-07 | 1976-06-01 | The Singer Company | Dual plunger solenoid |
US4008876A (en) * | 1975-06-09 | 1977-02-22 | The Singer Company | Solenoid valve |
DE19817740A1 (en) * | 1998-04-21 | 1999-10-28 | Pierburg Ag | Exhaust gas recirculation valve |
DE19861176B4 (en) * | 1998-07-11 | 2010-01-14 | Pierburg Gmbh | adjusting part |
US6047718A (en) * | 1999-04-01 | 2000-04-11 | Emersonelectric Co. | Solenoid valve having coaxial armatures in a single coil design |
-
2001
- 2001-09-04 DE DE10143307A patent/DE10143307A1/en not_active Withdrawn
-
2002
- 2002-07-11 ES ES02015412T patent/ES2271153T3/en not_active Expired - Lifetime
- 2002-07-11 DE DE50207981T patent/DE50207981D1/en not_active Expired - Lifetime
- 2002-07-11 EP EP02015412A patent/EP1288481B1/en not_active Expired - Lifetime
- 2002-09-04 US US10/234,427 patent/US6719265B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020134522A1 (en) | 2020-12-21 | 2022-06-23 | Kendrion (Villingen) Gmbh | Electromagnet for generating a linear movement |
WO2022135766A1 (en) | 2020-12-21 | 2022-06-30 | Kendrion (Villingen) Gmbh | Electromagnet for producing a linear movement |
Also Published As
Publication number | Publication date |
---|---|
EP1288481A2 (en) | 2003-03-05 |
DE10143307A1 (en) | 2003-03-20 |
EP1288481A3 (en) | 2004-09-01 |
US20030042454A1 (en) | 2003-03-06 |
ES2271153T3 (en) | 2007-04-16 |
DE50207981D1 (en) | 2006-10-12 |
US6719265B2 (en) | 2004-04-13 |
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