EP1288481B1 - Actionneur électromagnétique - Google Patents

Actionneur électromagnétique Download PDF

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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
Application number
EP02015412A
Other languages
German (de)
English (en)
Other versions
EP1288481A3 (fr
EP1288481A2 (fr
Inventor
Martin Kloda
Gunther Weitkamp
Markus Herring
Heinz Creutz
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.)
Pierburg GmbH
Original Assignee
Pierburg 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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP1288481A2 publication Critical patent/EP1288481A2/fr
Publication of EP1288481A3 publication Critical patent/EP1288481A3/fr
Application granted granted Critical
Publication of EP1288481B1 publication Critical patent/EP1288481B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.

Landscapes

  • 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)

Claims (8)

  1. Actionneur électromagnétique, en particulier à usage dans des vannes dans le domaine automobile, telles que par exemple vannes de recyclage de gaz d'échappement, vannes d'air secondaire etc., comprenant un boîtier (2) qui comporte une fiche de raccordement électrique (3), une culasse d'aimant (4), un corps de bobine (5), un élément de guidage (6), un noyau magnétique (7) et un organe d'induit (8), qui coopère avec un organe de réglage de vanne (15), l'organe d'induit (8) présentant un premier et un second élément d'induit (9, 10), caractérisé en ce que le second élément d'induit (10) est réalisé en forme de disque et est supporté à distance du premier élément d'induit (9) par un entrefer à l'état non alimenté en courant de l'actionneur de telle sorte qu'il agit lors de l'alimentation en courant du corps de bobine (5) comme aimant à plaques qui attire brusquement le premier élément d'induit (9) et exerce de cette manière une force d'ouverture essentiellement accrue sur l'organe de fermeture de vanne (14).
  2. Actionneur électromagnétique suivant la revendication 1, caractérisé en ce que l'entrefer est de préférence compris entre 0,1 mm et 2,0 mm.
  3. Actionneur électromagnétique suivant l'une des revendications 1 et 2, caractérisé en ce que l'organe de réglage de vanne (14) est relié par coopération de forme ou force d'adhérence au premier élément d'induit (9).
  4. Actionneur électromagnétique suivant l'une des revendications 1 à 3, caractérisé en ce qu'il est prévu un élément de douille (16), qui est assemblé par coopération de forme ou force d'adhérence avec le second élément d'induit (10) et monté mobile dans le noyau magnétique (5), l'organe de réglage de vanne (14) passant au travers de l'élément de douille (16) avec possibilité de déplacement.
  5. Actionneur électromagnétique suivant la revendication 4, caractérisé en ce que l'élément de douille (16) comporte une pièce d'embout (17), qui s'applique contre le côté inférieur du noyau magnétique (7) dans la position initiale du second élément d'induit (10).
  6. Actionneur électromagnétique suivant la revendication 5, caractérisé en ce que le côté inférieur de l'organe de réglage de vanne (14) se termine par la pièce d'embout (17) ou dépasse de celle-ci.
  7. Actionneur électromagnétique suivant l'une des revendications précédentes, caractérisé en ce qu'un coussinet (11, 12) pour le support mobile de l'organe d'induit (8) est disposé dans l'élément de guidage (6) et dans le noyau magnétique (7), lequel coussinet isole en même temps magnétiquement les éléments d'induit (9, 10).
  8. Vanne avec actionneur électromagnétique suivant l'une des revendications 4 à 7, caractérisée en ce que l'organe de réglage de vanne (14) est en liaison active avec un organe de fermeture de vanne (15) guidé dans un boîtier de vanne (19) et relié pour sa part à l'élément de douille (16) par l'intermédiaire d'une pièce d'accouplement (22), un ressort de rappel (21) agissant sur la pièce d'accouplement (22) et étant supporté dans le boîtier de vanne (19) de telle sorte que l'organe de réglage de vanne (14), l'organe de fermeture de vanne (15) et l'élément de douille (16) sont précontraints contre la direction de déplacement à l'état non alimenté en courant.
EP02015412A 2001-09-04 2002-07-11 Actionneur électromagnétique Expired - Lifetime EP1288481B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10143307A DE10143307A1 (de) 2001-09-04 2001-09-04 Elektromagnetischer Stellantrieb
DE10143307 2001-09-04

Publications (3)

Publication Number Publication Date
EP1288481A2 EP1288481A2 (fr) 2003-03-05
EP1288481A3 EP1288481A3 (fr) 2004-09-01
EP1288481B1 true EP1288481B1 (fr) 2006-08-30

Family

ID=7697661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015412A Expired - Lifetime EP1288481B1 (fr) 2001-09-04 2002-07-11 Actionneur électromagnétique

Country Status (4)

Country Link
US (1) US6719265B2 (fr)
EP (1) EP1288481B1 (fr)
DE (2) DE10143307A1 (fr)
ES (1) ES2271153T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020134522A1 (de) 2020-12-21 2022-06-23 Kendrion (Villingen) Gmbh Elektromagnet zur Erzeugung einer linearen Bewegung

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004003599A (ja) * 2002-03-29 2004-01-08 Denso Corp 電磁駆動装置
BRPI0403705A (pt) * 2004-08-20 2006-04-04 Wahler Metalurgica Ltda solenóide linear válvula egr
US20070246677A1 (en) * 2006-04-21 2007-10-25 Bircann Raul A Exhaust gas recirculation valve having self-centering bushing
DE102006024728A1 (de) * 2006-05-26 2007-11-29 Pierburg Gmbh Kraftfahrzeugventil
US7741941B2 (en) * 2006-11-30 2010-06-22 Honeywell International Inc. Dual armature solenoid valve assembly
CN101795910A (zh) * 2007-09-04 2010-08-04 丰田自动车株式会社 常闭电磁阀、制动控制系统、用于常闭电磁阀的控制方法和电磁阀
KR100902793B1 (ko) * 2007-11-07 2009-06-12 주식회사 경동네트웍 유량조절밸브
US20090212248A1 (en) * 2008-02-27 2009-08-27 Eugeniusz Kozak Solenoid-actuated diaphragm valve
DE102008011573B4 (de) 2008-02-28 2013-02-14 Danfoss A/S Elektromagnetischer Aktuator und Ventil
US8322376B2 (en) * 2008-06-09 2012-12-04 Bendix Commercial Vehicle Systems, Llc Solenoid valve
DE102018117074A1 (de) * 2018-07-13 2020-01-16 Svm Schultz Verwaltungs-Gmbh & Co. Kg Elektromagnetischer Aktuator mit Ankerscheibe

Family Cites Families (10)

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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 (de) * 1968-10-30 1970-01-02 Automatic Switch Co Elektromagnetisches Ventil
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 (de) * 1998-04-21 1999-10-28 Pierburg Ag Abgasrückführventil
DE19861176B4 (de) * 1998-07-11 2010-01-14 Pierburg Gmbh Stellteil
US6047718A (en) * 1999-04-01 2000-04-11 Emersonelectric Co. Solenoid valve having coaxial armatures in a single coil design

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020134522A1 (de) 2020-12-21 2022-06-23 Kendrion (Villingen) Gmbh Elektromagnet zur Erzeugung einer linearen Bewegung
WO2022135766A1 (fr) 2020-12-21 2022-06-30 Kendrion (Villingen) Gmbh Électro-aimant pour la production d'un mouvement linéaire

Also Published As

Publication number Publication date
ES2271153T3 (es) 2007-04-16
US20030042454A1 (en) 2003-03-06
EP1288481A3 (fr) 2004-09-01
US6719265B2 (en) 2004-04-13
DE10143307A1 (de) 2003-03-20
DE50207981D1 (de) 2006-10-12
EP1288481A2 (fr) 2003-03-05

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