EP1450010B1 - Electromagnetic valve actuator for internal combustion engine and engine comprising such an actuator - Google Patents

Electromagnetic valve actuator for internal combustion engine and engine comprising such an actuator Download PDF

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Publication number
EP1450010B1
EP1450010B1 EP04300048.8A EP04300048A EP1450010B1 EP 1450010 B1 EP1450010 B1 EP 1450010B1 EP 04300048 A EP04300048 A EP 04300048A EP 1450010 B1 EP1450010 B1 EP 1450010B1
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EP
European Patent Office
Prior art keywords
electromagnet
plate
actuator
stop
situated
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
EP04300048.8A
Other languages
German (de)
French (fr)
Other versions
EP1450010A2 (en
EP1450010A3 (en
Inventor
Emmanuel Sedda
Christophe Fageon
Stéphane Guerin
Jean-Paul Yonnet
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP1450010A2 publication Critical patent/EP1450010A2/en
Publication of EP1450010A3 publication Critical patent/EP1450010A3/en
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Publication of EP1450010B1 publication Critical patent/EP1450010B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2132—Biasing means
    • F01L2009/2134—Helical springs
    • F01L2009/2136—Two opposed springs for intermediate resting position of the armature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2146—Latching means
    • F01L2009/2148—Latching means using permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F01L2009/2151—Damping means

Definitions

  • the present invention relates to an electromechanical valve actuator for an internal combustion engine and to an internal combustion engine provided with such an actuator.
  • An electromechanical actuator 100 ( figure 1a ) valve 110 includes mechanical means, such as springs 102 and 104, and electromagnetic means, such as electromagnets 106 and 108, for controlling the position of the valve 110 by means of electrical signals.
  • the tail of the valve 110 is applied against the rod 112 of a magnetic plate 114 located between the two electromagnets 106 and 108.
  • EP1122748 A1 discloses an actuator comprising an elastic stop anchored and glued to the coil via the resin in which the electric winding is embedded.
  • the simultaneous displacement of the rod 112 allows the spring 102 to place the valve 110 in the closed position, the head of the valve 110 coming against its seat 111 and preventing the exchange of gas between the inside and the outside of the cylinder 116.
  • the electromagnet 108 when a current flows in the coil 107 of the electromagnet 106, (the electromagnet 108 is deactivated), the latter is activated and attracts the plate 114 which comes into contact with it and moves the rod 112, using the spring 104, so that the rod 112 acts on the valve 110 and places it in the open position, the valve head being moved away from its seat 111 to allow, for example, an admission or an injection of gas into the cylinder 116.
  • valve 110 When the electromechanical actuator 100 is operating correctly, the valve 110 alternates open or closed fixed positions, said switched, with transient movements between these two positions. Thereafter, the term “switched state” the state of an open or closed valve.
  • an actuator 150 ( figure 1b ) can be provided with magnets 168 (electromagnet 158) and 166 (electromagnet 156) for reducing the energy required to maintain the plate 164 in a switched position, that is to say in contact with one of the electromagnets.
  • each magnet for example the magnet 166 is located between two sub-elements 156a and 156b of the electromagnet 156 so that its magnetic field combines with the field created by the electromagnet.
  • An electromagnet provided with a magnet is hereinafter referred to as polarized electromagnet.
  • the present invention results from the observation that the contacts between a magnetic plate and an electromagnet, made at each valve switching, generate a noise whose intensity generally increases when the contact surface between the plate and the electromagnet increases, this noise which represents a significant part of the operating noise of an engine.
  • the invention also results from the observation that the use of a polarized electromagnet increases the range of the action exerted by the latter on the associated plate so that the control of the plate by the electromagnet can be realized with a limited supply of the actuator despite the presence of the air gap generated by a stop.
  • the invention relates to an electromechanical valve actuator for an internal combustion engine, comprising an electromagnet and a movable magnetic plate intended to come into contact with a member of this electromagnet, at least one stop being located on the electromagnet or on the plate to limit the contact surface between the plate and the electromagnet, characterized in that the electromagnet comprises a magnet in its magnetic circuit.
  • the invention therefore makes it possible to reduce the contact surface between the plate and the electromagnet, and consequently the engine operating noise, while the use of a magnet makes it possible to compensate for the air gap generated by the abutment.
  • this noise gain has advantages, especially related to passenger comfort, while the increase in the electromagnet's electrical consumption, caused by the presence of an additional air gap generated by the stop, is compensated by the presence of a magnet increasing the range of the electromagnet.
  • the stop is substantially located in the center of the surface of the electromagnet.
  • the stop is located on a collinear axis with the axis of translation of the plate.
  • a plurality of stops being located on the electromagnet and / or on the plate, the latter are arranged symmetrically with respect to the translation axis of the plate.
  • the electromagnet being formed by a support E three branches, the stop is located at the end of one of the branches of the support.
  • the stop when the electromagnet and the plate are in contact, the stop maintains an air gap between each end branch of the electromagnet support and the plate.
  • the magnet is located on the surface of one of the branches of the support, opposite the magnetic plate.
  • the stop is fixed between these two magnets.
  • the stop is made of magnetic material.
  • the stop is made of an elastic material, for example of the elastomer type.
  • the invention also relates to an internal combustion engine provided with an electromechanical valve actuator comprising an electromagnet and a movable magnetic plate coming into contact with the electromagnet.
  • the actuator of such a motor is in accordance with one of the embodiments of actuators described below.
  • This figure 2 is a diagram representing the force of attraction (y-axis 200, in N / m) exerted by a active polarized electromagnet (curve 202), that is to say generating a magnetic field by means of its coil, or inactive (curve 204), and a non-polarized electromagnet (curve 206) on a magnetic plate according to the air gap e separating the electromagnet considered plateau.
  • the range of action exerted by the polarized electromagnet (curve 202) is greater than the range of the unpolarized electromagnet. More specifically, the action exerted by the polarized electromagnet on the magnetic plate with a gap of 3 mm is equivalent to the action exerted by the unpolarized electromagnet with a gap of 1.7 mm.
  • FIG. 3a and 3b is represented a first embodiment of an electromechanical actuator 300, according to the invention, according to a view from above ( figure 3a ) or a side view ( figure 3b ).
  • a single abutment B 300 intended to maintain a gap between the support 304 of the electromagnet 301 and the plate 306, is disposed on the support 304 between two magnets 302 disposed on the same surface.
  • the end branches E 300 of the support 304 are limited so as to maintain an air gap e between the surface of the plate 306 and the surface of these branches E 300 of the support.
  • the abutment serving as contact point is made of magnetic material, so as not to generate an additional gap.
  • the abutment is made of elastomer material in order to absorb energy during contact between the plate and the abutment, thus limiting the noise generated.
  • these stops are distributed symmetrically with respect to the central axis C of the surface of the support 404 which is collinear with the axis of translation of the magnetic plate 406 controlled by this electromagnet.
  • five stops B 500 are used in the actuator 500 to further improve the contact between the plate 506 and the support 504 of the electromagnet 501 by combining a central stop, as shown in FIGS. Figures 3a and 3b , with four peripheral stops, as shown to Figures 4a and 4b .
  • actuators represented in FIGS. 3a, 3b, 4a, 4b, 5a and 5b are polarized by means of a magnet located on the support of an electromagnet E, vis-à-vis relative to the magnetic plate which facilitates the fixing and / or replacement of these magnets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electromagnets (AREA)

Description

La présente invention se rapporte à un actionneur électromécanique de soupape pour moteur à combustion interne et à un moteur à combustion interne muni d'un tel actionneur.The present invention relates to an electromechanical valve actuator for an internal combustion engine and to an internal combustion engine provided with such an actuator.

Un actionneur 100 électromécanique (figure 1a) de soupape 110 comporte des moyens mécaniques, tels que des ressorts 102 et 104, et des moyens électromagnétiques, tels que des électroaimants 106 et 108, pour commander la position de la soupape 110 au moyen de signaux électriques.An electromechanical actuator 100 ( figure 1a ) valve 110 includes mechanical means, such as springs 102 and 104, and electromagnetic means, such as electromagnets 106 and 108, for controlling the position of the valve 110 by means of electrical signals.

A cet effet la queue de la soupape 110 est appliquée contre la tige 112 d'un plateau magnétique 114 situé entre les deux électroaimants 106 et 108.For this purpose the tail of the valve 110 is applied against the rod 112 of a magnetic plate 114 located between the two electromagnets 106 and 108.

Lorsqu'un courant circule dans la bobine 109 de l'électroaimant 108, ce dernier est activé et attire le plateau magnétique 114 qui vient à son contact. IL est connu par exemple du document DE19646937 de disposer des butées sur le plateau.When a current flows in the coil 109 of the electromagnet 108, the latter is activated and attracts the magnetic plate 114 which comes into contact with it. It is known for example from the document DE19646937 to have stops on the board.

Le document EP1122748 A1 décrit un actionneur comprenant une butée élastique ancrée et collée à la bobine par l'intermédiaire de la résine dans laquelle l'enroulement électrique est noyé.The document EP1122748 A1 discloses an actuator comprising an elastic stop anchored and glued to the coil via the resin in which the electric winding is embedded.

Le déplacement simultané de la tige 112 permet au ressort 102 de placer la soupape 110 en position fermée, la tête de la soupape 110 venant contre son siège 111 et empêchant les échanges de gaz entre l'intérieur et l'extérieur du cylindre 116.The simultaneous displacement of the rod 112 allows the spring 102 to place the valve 110 in the closed position, the head of the valve 110 coming against its seat 111 and preventing the exchange of gas between the inside and the outside of the cylinder 116.

De façon analogue (non représentée), lorsqu'un courant circule dans la bobine 107 de l'électroaimant 106, (l'électroaimant 108 étant désactivé), ce dernier est activé et attire le plateau 114 qui vient à son contact et déplace la tige 112, à l'aide du ressort 104, de telle sorte que cette tige 112 agit sur la soupape 110 et place cette dernière en position ouverte, la tête de la soupape étant éloignée de son siège 111 pour permettre, par exemple, une admission ou une injection de gaz dans le cylindre 116.Similarly (not shown), when a current flows in the coil 107 of the electromagnet 106, (the electromagnet 108 is deactivated), the latter is activated and attracts the plate 114 which comes into contact with it and moves the rod 112, using the spring 104, so that the rod 112 acts on the valve 110 and places it in the open position, the valve head being moved away from its seat 111 to allow, for example, an admission or an injection of gas into the cylinder 116.

Lorsque l'actionneur électromécanique 100 fonctionne correctement, la soupape 110 alterne des positions ouvertes ou fermées fixes, dites commutées, avec des déplacements transitoires entre ces deux positions. Par la suite, on dénommera « état commuté » l'état d'une soupape ouverte ou fermée.When the electromechanical actuator 100 is operating correctly, the valve 110 alternates open or closed fixed positions, said switched, with transient movements between these two positions. Thereafter, the term "switched state" the state of an open or closed valve.

Par ailleurs, il est connu du document EP1174595 un actionneur 150 (figure 1b) peut être muni d'aimants 168 (électroaimant 158) et 166 (électroaimant 156) destinés à réduire l'énergie nécessaire au maintien du plateau 164 dans une position commutée, c'est-à-dire en contact contre un des électroaimants.Moreover, it is known from the document EP1174595 an actuator 150 ( figure 1b ) can be provided with magnets 168 (electromagnet 158) and 166 (electromagnet 156) for reducing the energy required to maintain the plate 164 in a switched position, that is to say in contact with one of the electromagnets.

A cet effet, chaque aimant, par exemple l'aimant 166 est situé entre deux sous éléments 156a et 156b de l'électroaimant 156 de façon à ce que son champ magnétique se combine au champ créé par l'électroaimant. Un électroaimant muni d'un aimant est dénommé par la suite électroaimant polarisé.For this purpose, each magnet, for example the magnet 166 is located between two sub-elements 156a and 156b of the electromagnet 156 so that its magnetic field combines with the field created by the electromagnet. An electromagnet provided with a magnet is hereinafter referred to as polarized electromagnet.

La présente invention résulte de la constatation que les contacts entre un plateau magnétique et un électroaimant, réalisés à chaque commutation de soupape, génèrent un bruit dont l'intensité croît généralement lorsque la surface de contact entre le plateau et l'électroaimant augmente, ce bruit de contact représentant une partie importante du bruit de fonctionnement d'un moteur.The present invention results from the observation that the contacts between a magnetic plate and an electromagnet, made at each valve switching, generate a noise whose intensity generally increases when the contact surface between the plate and the electromagnet increases, this noise which represents a significant part of the operating noise of an engine.

L'invention résulte aussi de la constatation que l'utilisation d'un électroaimant polarisé accroît la portée de l'action exercée par ce dernier sur le plateau associé de telle sorte que le contrôle du plateau par l'électroaimant peut être réalisé avec une alimentation limitée de l'actionneur malgré la présence de l'entrefer généré par une butée.The invention also results from the observation that the use of a polarized electromagnet increases the range of the action exerted by the latter on the associated plate so that the control of the plate by the electromagnet can be realized with a limited supply of the actuator despite the presence of the air gap generated by a stop.

C'est pourquoi, l'invention concerne un actionneur électromécanique de soupape pour moteur à combustion interne, comprenant un électroaimant et un plateau magnétique mobile destiné à entrer en contact avec un organe de cet électroaimant, au moins une butée étant située sur l'électroaimant ou sur le plateau pour limiter la surface de contact entre le plateau et l'électroaimant, caractérisé en ce que l'électroaimant comporte un aimant dans son circuit magnétique.Therefore, the invention relates to an electromechanical valve actuator for an internal combustion engine, comprising an electromagnet and a movable magnetic plate intended to come into contact with a member of this electromagnet, at least one stop being located on the electromagnet or on the plate to limit the contact surface between the plate and the electromagnet, characterized in that the electromagnet comprises a magnet in its magnetic circuit.

L'invention permet donc de réduire la surface de contact entre le plateau et l'électroaimant, et par conséquent le bruit de fonctionnement du moteur, tandis que l'utilisation d'un aimant permet de compenser l'entrefer généré par la butée.The invention therefore makes it possible to reduce the contact surface between the plate and the electromagnet, and consequently the engine operating noise, while the use of a magnet makes it possible to compensate for the air gap generated by the abutment.

De fait, ce gain de bruit présente des avantages, notamment liés au confort des passagers, tandis que l'augmentation de la consommation électrique de l'électroaimant, provoquée par la présence d'un entrefer supplémentaire généré par la butée, est compensée par la présence d'un aimant augmentant la portée de l'électroaimant.In fact, this noise gain has advantages, especially related to passenger comfort, while the increase in the electromagnet's electrical consumption, caused by the presence of an additional air gap generated by the stop, is compensated by the presence of a magnet increasing the range of the electromagnet.

Selon une réalisation, la butée est sensiblement située au centre de la surface de l'électroaimant.In one embodiment, the stop is substantially located in the center of the surface of the electromagnet.

Dans une réalisation, la butée est située sur un axe colinéaire avec l'axe de translation du plateau.In one embodiment, the stop is located on a collinear axis with the axis of translation of the plate.

Selon une réalisation, une pluralité de butées étant situées sur l'électroaimant et/ou sur le plateau, ces dernières sont disposées de façon symétrique par rapport à l'axe de translation du plateau.According to one embodiment, a plurality of stops being located on the electromagnet and / or on the plate, the latter are arranged symmetrically with respect to the translation axis of the plate.

Dans une réalisation, l'électroaimant étant formé par un support en E à trois branches, la butée est située à l'extrémité d'une des branches du support.In one embodiment, the electromagnet being formed by a support E three branches, the stop is located at the end of one of the branches of the support.

Selon une réalisation, lorsque l'électroaimant et le plateau sont en contact, la butée maintient un entrefer entre chaque branche extrême du support de l'électroaimant et le plateau.According to one embodiment, when the electromagnet and the plate are in contact, the stop maintains an air gap between each end branch of the electromagnet support and the plate.

Dans une réalisation, l'aimant est situé sur la surface d'une des branches du support, en vis-à-vis du plateau magnétique.In one embodiment, the magnet is located on the surface of one of the branches of the support, opposite the magnetic plate.

Selon une réalisation, deux aimants étant situés sur la surface du support, la butée est fixée entre ces deux aimants.In one embodiment, two magnets being located on the surface of the support, the stop is fixed between these two magnets.

Dans une réalisation, la butée est en matériau magnétique.In one embodiment, the stop is made of magnetic material.

Selon une réalisation, la butée est en matériau élastique, par exemple du type élastomère.According to one embodiment, the stop is made of an elastic material, for example of the elastomer type.

L'invention concerne aussi un moteur à combustion interne muni d'un actionneur électromécanique de soupape comprenant un électroaimant et un plateau magnétique mobile venant au contact de l'électroaimant. Conformément à l'invention, l'actionneur d'un tel moteur est conforme à l'une des réalisations d'actionneurs décrites ci-dessous.The invention also relates to an internal combustion engine provided with an electromechanical valve actuator comprising an electromagnet and a movable magnetic plate coming into contact with the electromagnet. According to the invention, the actuator of such a motor is in accordance with one of the embodiments of actuators described below.

D'autres caractéristiques et avantages de l'invention apparaîtront avec la description effectuée ci-dessous à titre d'exemple non limitatif en faisant référence aux dessins ci-joints sur desquels :

  • les figures 1a et 1b, déjà décrites, représentent des actionneurs électromécaniques connus,
  • la figure 2 est un diagramme de différentes actions exercées par un électroaimant polarisé et par un électroaimant non polarisé sur un plateau magnétique,
  • les figures 3a, 3b, 4a, 4b, 5a et 5b représentent différentes variantes de l'invention.
Other features and advantages of the invention will become apparent with the description given below by way of non-limiting example with reference to the accompanying drawings in which:
  • the Figures 1a and 1b , already described, represent known electromechanical actuators,
  • the figure 2 is a diagram of different actions exerted by a polarized electromagnet and an unpolarized electromagnet on a magnetic plate,
  • the FIGS. 3a, 3b, 4a, 4b, 5a and 5b represent different variants of the invention.

La description de l'invention décrite ci-dessous est relative à des électroaimants polarisés. De fait, de tels électroaimants polarisés présentent l'avantage d'exercer une action moins sensible à la variation de l'entrefer entre le plateau magnétique et l'électroaimant que des électroaimants non polarisés, comme montré sur la figure 2.The description of the invention described below relates to polarized electromagnets. In fact, such polarized electromagnets have the advantage of exerting an action less sensitive to the variation of the gap between the magnetic plate and the electromagnet than non-polarized electromagnets, as shown in FIG. figure 2 .

Cette figure 2 est un diagramme représentant la force d'attraction (axe des ordonnées 200, en N/m) exercée par un électroaimant polarisé actif (courbe 202), c'est-à-dire générant un champ magnétique au moyen de sa bobine, ou inactif (courbe 204), et un électroaimant non polarisé (courbe 206) sur un plateau magnétique en fonction de l'entrefer e séparant l'électroaimant considéré du plateau.This figure 2 is a diagram representing the force of attraction (y-axis 200, in N / m) exerted by a active polarized electromagnet (curve 202), that is to say generating a magnetic field by means of its coil, or inactive (curve 204), and a non-polarized electromagnet (curve 206) on a magnetic plate according to the air gap e separating the electromagnet considered plateau.

On constate que la portée de l'action exercée par l'électroaimant polarisé (courbe 202), est supérieure à la portée de l'électroaimant non polarisé. Plus précisément, l'action exercée par l'électroaimant polarisé sur le plateau magnétique avec un entrefer de 3 mm est équivalente à l'action exercée par l'électroaimant non polarisé avec un entrefer de 1,7 mm.It can be seen that the range of action exerted by the polarized electromagnet (curve 202) is greater than the range of the unpolarized electromagnet. More specifically, the action exerted by the polarized electromagnet on the magnetic plate with a gap of 3 mm is equivalent to the action exerted by the unpolarized electromagnet with a gap of 1.7 mm.

Sur les figures 3a et 3b est représentée une première réalisation d'un actionneur électromécanique 300, conforme à l'invention, selon une vue de haut (figure 3a) ou une vue de côté (figure 3b).On the Figures 3a and 3b is represented a first embodiment of an electromechanical actuator 300, according to the invention, according to a view from above ( figure 3a ) or a side view ( figure 3b ).

Dans cette première réalisation, une unique butée B300, destinée à maintenir un entrefer entre le support 304 de l'électroaimant 301 et le plateau 306, est disposée sur le support 304 entre deux aimants 302 disposés sur cette même surface.In this first embodiment, a single abutment B 300 , intended to maintain a gap between the support 304 of the electromagnet 301 and the plate 306, is disposed on the support 304 between two magnets 302 disposed on the same surface.

Comme montré sur la figure 3b, les branches extrêmes E300 du support 304 sont limitées de façon à maintenir un entrefer e entre la surface du plateau 306 et la surface de ces branches E300 du support.As shown on the figure 3b the end branches E 300 of the support 304 are limited so as to maintain an air gap e between the surface of the plate 306 and the surface of these branches E 300 of the support.

Ainsi, lorsque le plateau 306 vient en contact avec la butée B300, aucun contact n'est effectué avec ses branches E300, limitant ainsi la surface de contact entre le plateau 306 et le support 304.Thus, when the plate 306 comes into contact with the abutment B 300 , no contact is made with its branches E 300 , thus limiting the contact area between the plate 306 and the support 304.

Il convient de signaler que, pour protéger les aimants 302 des chocs, un entrefer doit aussi être maintenu entre ces aimants et le plateau 306.It should be pointed out that, in order to protect the magnets 302 from shocks, an air gap must also be maintained between these magnets and the plate 306.

Dans cette réalisation, la butée servant de point de contact est en matériau magnétique, de façon à ne pas générer un entrefer supplémentaire.In this embodiment, the abutment serving as contact point is made of magnetic material, so as not to generate an additional gap.

Toutefois, dans une variante, la butée est en matériau élastomère afin d'absorber de l'énergie lors du contact entre le plateau et la butée, limitant ainsi le bruit généré.However, in a variant, the abutment is made of elastomer material in order to absorb energy during contact between the plate and the abutment, thus limiting the noise generated.

Sur les figures 4a (vue de haut) et 4b (vue de face) est représentée une deuxième variante de l'invention telle que quatre butées B400 sont situées sur la surface du support 404 de l'électroaimant 401 d'un actionneur 400.On the Figures 4a (seen from above) and 4b (front view) is shown a second variant of the invention such that four abutments B 400 are located on the surface of the support 404 of the electromagnet 401 of an actuator 400.

L'utilisation d'un nombre élevé de butées permet d'assurer le parallélisme entre la surface du plateau 406 et la surface du support 404 lorsque ces derniers viennent en contact.The use of a large number of stops makes it possible to ensure the parallelism between the surface of the plate 406 and the surface of the support 404 when the latter come into contact.

Pour cela, on répartit ces butées symétriquement par rapport à l'axe C central de la surface du support 404 qui est colinéaire avec l'axe de translation du plateau 406 magnétique contrôlé par cet électroaimant.For this purpose, these stops are distributed symmetrically with respect to the central axis C of the surface of the support 404 which is collinear with the axis of translation of the magnetic plate 406 controlled by this electromagnet.

Dans une variante représentée aux figures 5a et 5b, cinq butées B500 sont utilisées dans l'actionneur 500 pour améliorer à nouveau le contact entre le plateau 506 et le support 504 de l'électroaimant 501 en combinant une butée centrale, telle que montrée aux figures 3a et 3b, avec quatre butées périphériques, telles que montrées aux figures 4a et 4b.In a variant shown in Figures 5a and 5b five stops B 500 are used in the actuator 500 to further improve the contact between the plate 506 and the support 504 of the electromagnet 501 by combining a central stop, as shown in FIGS. Figures 3a and 3b , with four peripheral stops, as shown to Figures 4a and 4b .

Il convient de signaler que les actionneurs représentés aux figures 3a, 3b, 4a, 4b, 5a et 5b sont polarisés au moyen d'un aimant situé sur le support d'un l'électroaimant en E, en vis-à-vis par rapport au plateau magnétique ce qui facilite la fixation et/ou le remplacement de ces aimants.It should be noted that the actuators represented in FIGS. 3a, 3b, 4a, 4b, 5a and 5b are polarized by means of a magnet located on the support of an electromagnet E, vis-à-vis relative to the magnetic plate which facilitates the fixing and / or replacement of these magnets.

Claims (7)

  1. An electromagnetic valve actuator (300; 400; 500) for an internal combustion engine, including an electromagnet (301; 401; 501) and a mobile magnetic plate (306; 406; 506) intended to come into contact with a member of this electromagnet, at least one stop (B300 ; B400 ; B500) being situated on the electromagnet (301; 401; 501) to limit the contact surface between the plate (306; 406; 506) and the electromagnet (301; 401; 501), characterized in that the electromagnet (301; 401; 501) comprises an E-shaped magnetic circuit, a magnet in its magnetic circuit, the stop (B300 ; B400 ; B500) being situated at the end of one of the three substantially parallel branches of the E and the magnet is situated on the surface of one of the three substantially parallel branches of the E-shaped circuit, opposite the magnetic plate.
  2. The actuator according to Claim 1, characterized in that the stop (B300) is substantially situated in the centre of the contact surface between the electromagnet (300) and the plate.
  3. The actuator according to Claim 1 or 2, characterized in that the stop (B300) is situated on an axis that is collinear with the axis of translation of the plate (306).
  4. The actuator according to one of Claims 1, 2 or 3, characterized in that, a plurality of stops (B400 ; B500) being situated on the electromagnet (401; 501), these latter are disposed in a symmetrical manner with respect to the axis of translation of the plate (406; 506).
  5. The actuator according to one of the preceding claims, characterized in that, when the electromagnet (301; 401; 501) and the plate (306; 406; 506) are in contact, the stop maintains an air gap between each end branch of the magnetic circuit of the electromagnet and the plate.
  6. The actuator according to one of the preceding claims, characterized in that, two magnets being situated on the surface of the E-shaped circuit, the stop is located between these two magnets.
  7. An internal combustion engine provided with an electromagnetic valve actuator (300; 400; 500) for an internal combustion engine, including an electromagnet (301; 401; 501) and a mobile magnetic plate (306; 406; 506) coming into contact with this electromagnet, characterized in that the actuator is in accordance with one of the preceding claims.
EP04300048.8A 2003-02-18 2004-01-27 Electromagnetic valve actuator for internal combustion engine and engine comprising such an actuator Expired - Lifetime EP1450010B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0301945A FR2851289B1 (en) 2003-02-18 2003-02-18 ELECTROMECHANICAL VALVE ACTUATOR FOR INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE EQUIPPED WITH SUCH ACTUATOR
FR0301945 2003-02-18

Publications (3)

Publication Number Publication Date
EP1450010A2 EP1450010A2 (en) 2004-08-25
EP1450010A3 EP1450010A3 (en) 2008-12-31
EP1450010B1 true EP1450010B1 (en) 2016-07-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04300048.8A Expired - Lifetime EP1450010B1 (en) 2003-02-18 2004-01-27 Electromagnetic valve actuator for internal combustion engine and engine comprising such an actuator

Country Status (4)

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US (1) US7487749B2 (en)
EP (1) EP1450010B1 (en)
JP (1) JP4622260B2 (en)
FR (1) FR2851289B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2025973C1 (en) * 1992-02-10 1995-01-09 Научно-производственное предприятие "Биофарм" Solution for conservation of live organs
US8066474B1 (en) 2006-06-16 2011-11-29 Jansen's Aircraft Systems Controls, Inc. Variable guide vane actuator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122748A1 (en) * 2000-02-02 2001-08-08 Peugeot Citroen Automobiles SA Device controlling and reducing the speed of impact of an electromechanical actuator

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858135A (en) 1973-08-14 1974-12-31 S Gray Push-pull linear motor
US4515343A (en) * 1983-03-28 1985-05-07 Fev Forschungsgesellschaft fur Energietechnik und ver Brennungsmotoren mbH Arrangement for electromagnetically operated actuators
US4533890A (en) 1984-12-24 1985-08-06 General Motors Corporation Permanent magnet bistable solenoid actuator
DE3500530A1 (en) 1985-01-09 1986-07-10 Binder Magnete GmbH, 7730 Villingen-Schwenningen Device for the electromagnetic control of piston valves
DE3513103A1 (en) * 1985-04-12 1986-10-16 Fleck, Andreas, 2000 Hamburg ELECTROMAGNETIC WORKING ACTUATOR
JP2707127B2 (en) 1988-12-28 1998-01-28 株式会社いすゞセラミックス研究所 Electromagnetic valve drive
JPH0466706A (en) * 1990-07-09 1992-03-03 Isuzu Ceramics Kenkyusho:Kk Electromagnetic force valve drive device
DE4108758C2 (en) * 1991-03-18 2000-05-31 Deutz Ag Solenoid valve for a fuel injector
JPH05340223A (en) * 1992-06-12 1993-12-21 Isuzu Motors Ltd Buffering device for solenoid valve
JP3134724B2 (en) 1995-02-15 2001-02-13 トヨタ自動車株式会社 Valve drive for internal combustion engine
JP3424426B2 (en) * 1996-02-15 2003-07-07 トヨタ自動車株式会社 Electromagnetic valve drive for internal combustion engine
JPH1047028A (en) 1996-07-31 1998-02-17 Suzuki Motor Corp Controller for solenoid valve type engine
DE19646937C2 (en) * 1996-11-13 2000-08-31 Bayerische Motoren Werke Ag Electromagnetic actuator for an internal combustion engine lift valve
DE19651846B4 (en) 1996-12-13 2005-02-17 Fev Motorentechnik Gmbh Method for the electromagnetic actuation of a gas exchange valve without pole surface contact
JPH10205314A (en) * 1996-12-13 1998-08-04 Fev Motorentechnik Gmbh & Co Kg Method for controlling solenoid valve driving part of gas exchange valve
FR2784497B1 (en) * 1998-10-07 2000-12-15 Sagem ELECTROMAGNETIC ACTUATOR WITH MAGNETIC PALLET
JP4126787B2 (en) 1998-12-07 2008-07-30 トヨタ自動車株式会社 Electromagnetic drive device
JP3715460B2 (en) * 1999-03-31 2005-11-09 株式会社日立製作所 Electromagnetic drive device for engine valve
DE19922427A1 (en) * 1999-05-14 2000-11-30 Siemens Ag Electromagnetic multiple actuator
US6422533B1 (en) * 1999-07-09 2002-07-23 Parker-Hannifin Corporation High force solenoid valve and method of improved solenoid valve performance
JP3573263B2 (en) * 1999-07-21 2004-10-06 愛三工業株式会社 Electromagnetic actuator
DE50010766D1 (en) * 1999-09-16 2005-08-25 Siemens Ag METHOD FOR CONTROLLING AN ELECTROMECHANICAL ACTUATOR
JP2001126919A (en) * 1999-10-28 2001-05-11 Honda Motor Co Ltd Electromagnetic actuator
DE10003928A1 (en) 1999-11-25 2001-06-07 Daimler Chrysler Ag Electromagnetic actuator to operate gas change valve of internal combustion engine; has electromagnets and spring mechanism to adjust valve connected to armature between two end positions
JP2002038912A (en) * 1999-12-09 2002-02-06 Sumitomo Electric Ind Ltd Opening/closing mechanism of valve for internal combustion engine
US6308667B1 (en) 2000-04-27 2001-10-30 Visteon Global Technologies, Inc. Actuator for engine valve with tooth and socket armature and core for providing position output and/or improved force profile
FR2812024B1 (en) * 2000-07-18 2003-04-04 Peugeot Citroen Automobiles Sa VALVE ACTUATOR FOR INTERNAL COMBUSTION ENGINES
FR2812025B1 (en) 2000-07-20 2003-01-24 Peugeot Citroen Automobiles Sa ELECTROMAGNETIC VALVE ACTUATOR OF INTERNAL COMBUSTION ENGINE
DE50106560D1 (en) * 2000-07-24 2005-07-21 Compact Dynamics Gmbh Valve drive for a valve-controlled internal combustion engine
JP2002130510A (en) 2000-10-18 2002-05-09 Toyota Motor Corp Electromagnetic drive valve
FR2822585B1 (en) * 2001-03-20 2003-08-15 Peugeot Citroen Automobiles Sa ELECTROMAGNETIC VALVE ACTUATOR OF INTERNAL COMBUSTION ENGINE
JP2002364391A (en) 2001-06-08 2002-12-18 Toyota Motor Corp Neutral valve position variation detector for solenoid- driven valve
JP3780886B2 (en) * 2001-09-07 2006-05-31 トヨタ自動車株式会社 Valve drive device for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122748A1 (en) * 2000-02-02 2001-08-08 Peugeot Citroen Automobiles SA Device controlling and reducing the speed of impact of an electromechanical actuator

Also Published As

Publication number Publication date
JP4622260B2 (en) 2011-02-02
FR2851289B1 (en) 2007-04-06
US20040206320A1 (en) 2004-10-21
US7487749B2 (en) 2009-02-10
EP1450010A2 (en) 2004-08-25
EP1450010A3 (en) 2008-12-31
FR2851289A1 (en) 2004-08-20
JP2004257382A (en) 2004-09-16

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