EP0886875B1 - Rotatable single-phase electromagnetic actuator with a magnetic spring, and electrically operated valve using same - Google Patents
Rotatable single-phase electromagnetic actuator with a magnetic spring, and electrically operated valve using same Download PDFInfo
- Publication number
- EP0886875B1 EP0886875B1 EP97900660A EP97900660A EP0886875B1 EP 0886875 B1 EP0886875 B1 EP 0886875B1 EP 97900660 A EP97900660 A EP 97900660A EP 97900660 A EP97900660 A EP 97900660A EP 0886875 B1 EP0886875 B1 EP 0886875B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnet
- poles
- magnetic
- major part
- constant current
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/14—Pivoting armatures
- H01F7/145—Rotary electromagnets with variable gap
Definitions
- the present invention relates to a rotary single-phase electromagnetic actuator.
- Electromagnetic actuators are known in the state of the art single-phase torque due to the constant current over most of the useful stroke.
- Such actuators are for example described in patent applications FR-A-2348632 , FR-A-2688105 , and FR-A-2670629 .
- the document EP-A-0 543 105 discloses an actuator according to the preamble of claim 1.
- the actuator In certain applications, in particular for the control of recirculation or air intake valves, it is desirable for the actuator to return to a specific rest position.
- the torque actuators due to the constant current of the state of the art are generally coupled in their applications with a return spring which allows, in case of power failure of the actuator, to completely close the air intake valve to shut off the air supply to the engine.
- a return spring is bulky, has risks of rupture and its restoring torque must be adjusted relative to the position of the valve.
- the object of the invention is to overcome these drawbacks by proposing an actuator comprising return means in the simple rest position, inexpensive, and not requiring adjustment.
- the actuator comprises a fixed member constituted by a stator circuit excited by at least one electric coil, and a rotatable member comprising a thin magnet having 2N pairs of magnetic poles magnetized in alternating directions.
- the actuator further comprises biasing means for returning the movable member to a predetermined angular rest position constituted by a thin auxiliary magnet disposed in the gap, having 2N pairs of magnetic poles magnetized alternately and integral with the stator poles.
- the rotor poles and the magnetic poles of the auxiliary return magnet are in the form of thin annular sectors.
- the rotor poles and the magnetic poles of the auxiliary booster magnet are tubular in shape.
- the auxiliary return magnet is bonded to the stator poles in a position such that the current-neutral equilibrium position of the rotor corresponds to the desired current-free position.
- the rotor cooperates with the fixed member via a ball stop limiting the movement of the rotor in the direction of the fixed organ.
- the ball stop is substantially coplanar with the plane passing through the end of the stator poles.
- the magnetic disk 2N poles constituting the auxiliary magnet has a central recess of a section at least equal to the section of the thrust ball.
- the rotor magnet is integral with a yoke made of a soft magnetic material.
- the stator further comprises a fixed closure yoke made of a soft magnetic material.
- the invention also relates to a valve, in particular an air intake valve for an internal combustion engine, driven by such an actuator.
- the auxiliary return magnet will be arranged in such a way that the rest position corresponds to a partial opening of the air intake.
- the figure 1 represents an exploded view of a first embodiment of an actuator according to the invention.
- the actuator is composed of a fixed part (1) and a rotatable part (2).
- the fixed part (1) has 4 stator poles (3 to 6) in the form of annular sectors each excited by an electric coil (7 to 10).
- the stator poles (3 to 6) are extended by cores surrounded by the electric coils (7 to 10), these cores being integral with a base (11).
- stator structure is known and is not explained in more detail.
- the rotor part (2) has 4 magnetic poles formed by thin magnets (12 to 15) in the form of annular sectors magnetized in alternating directions, perpendicularly to the transverse plane of the annular sectors.
- the magnetized sectors (12 to 15) are glued to a yoke (16). This yoke is mounted on an axis not shown.
- the actuator comprises a second series of magnetized annular sectors (17 to 20) in alternating directions. These magnetized annular sectors (17 to 20) form an auxiliary return magnet bonded to the stator poles (3 to 6).
- the actuator will provide a torque of the constant current and proportional to the current.
- the figure 2 represents the torque curves as a function of the angular position of such an actuator.
- the curves (70 to 72) correspond to the torque as a function of the position, for a current of respectively 1.5, 1 and 0.5 amperes.
- the curve (31) represents the torque in the absence of current, for a displacement of the rotary member (2) in the trigonometrical direction.
- the curve (32) represents the torque in the absence of current, for a displacement of the rotary member (2) in the anti-trigonometric direction.
- Curves (74 to 76) correspond to torque depending on the position, for a current respectively of - 1,5, - 1 and - 0,5 amperes.
- the figure 3 represents a sectional view of another variant embodiment.
- the yoke (35) has a cylindrical housing (38) provided with a bearing (39).
- the stator part (1) has a bearing (36).
- the positioning and guiding of the cylinder head (35) are provided by a ball bearing (37) interposed between the two bearings (36, 39).
- the yoke (35) is integral with an axis (40) passing through an orifice provided in the base (41). This orifice (42) has a section greater than the section of the axis (40) so that this axis is never guided by the stator part.
- the positioning, and in particular the centering of the axis results solely from the magnetic positioning by the magnetic cooperation of the main magnet (43) with the stator poles (44), and the limitation of the axial displacement due to the thrust bearing (37). ).
- the stator poles are excited in known manner by coils (50, 51).
- the auxiliary magnet (45) for return is glued to the stator poles.
- the figure 4 represents a view from above of the actuator described above.
- the magnetization transitions (52, 53) of the main magnet are angularly offset, in the rest position, relative to the magnetization transitions (54 to 57) of the auxiliary magnet.
- the figure 5 represents another alternative embodiment relating to a tubular rotor actuator.
- the actuator is composed of a stator (60) excited by two electrical coils (61, 62) defining a cylindrical cavity inside which is placed a rotor (63) having two magnets semi-tubular magnets (64, 65) radially in opposite directions. These magnets (64, 65) are glued on a cylinder head.
- the stator comprises two auxiliary magnets (66, 67) semi-tubular radially magnetized in opposite directions housed in the central cavity in the tubular air gap (68).
Abstract
Description
La présente invention concerne un actionneur électromagnétique monophasé rotatif.The present invention relates to a rotary single-phase electromagnetic actuator.
On connaît dans l'état de la technique des actionneurs électromagnétique monophasé à couple dû au courant constant sur la plus grande partie de la course utile.Electromagnetic actuators are known in the state of the art single-phase torque due to the constant current over most of the useful stroke.
De tels actionneurs sont par exemple décrits dans les demandes de brevet
Pour certaines applications, notamment pour la commande de vannes de recirculation ou d'admission d'air, il est souhaitable que l'actionneur retourne dans une position de repos déterminée.For certain applications, in particular for the control of recirculation or air intake valves, it is desirable for the actuator to return to a specific rest position.
Pour réaliser cette fonction, les actionneurs à couple dû au courant constant de l'état de la technique sont en général couplés dans leurs applications avec un ressort de rappel qui permet, en cas de coupure de l'alimentation électrique de l'actionneur, de refermer complètement la vanne d'admission d'air pour couper l'alimentation en air du moteur thermique. Un tel ressort de rappel est encombrant, présente des risques de rupture et son couple de rappel doit être réglé par rapport à la position de la vanne.To achieve this function, the torque actuators due to the constant current of the state of the art are generally coupled in their applications with a return spring which allows, in case of power failure of the actuator, to completely close the air intake valve to shut off the air supply to the engine. Such a return spring is bulky, has risks of rupture and its restoring torque must be adjusted relative to the position of the valve.
La fermeture complète de la vanne en cas d'incident électrique pose par ailleurs des problèmes. En effet, il serait préférable de maintenir une légère ouverture de la vanne d'admission d'air, afin de permettre le retour du véhicule en mode dégradé jusqu'au garage le plus proche et d'éviter à la vanne de coller au corps de la vanne en cas de gel, et enfin de permettre un réglage du régime de ralenti par l'actionneur principal autour d'une position d'ouverture d'environ 10°. Cette dernière caractéristique permet d'éviter la réalisation d'une dérivation d'air avec un actionneur supplémentaire de réglage de ralenti.The complete closing of the valve in the event of an electrical incident also poses problems. Indeed, it would be preferable to maintain a slight opening of the air intake valve, to allow the return of the vehicle in degraded mode to the nearest garage and to avoid the valve to stick to the body of the valve in case of frost, and finally to allow adjustment of the idle speed by the main actuator around an open position of about 10 °. This last This feature avoids the realization of an air bypass with an additional idle adjustment actuator.
Cette fonction est réalisée actuellement avec deux ressorts mécaniques extérieurs à l'actionneur, montés en opposition, l'ouverture étant réglée par des butées. Un tel mécanisme est encombrant, coûteux et difficile à régler.This function is currently performed with two mechanical springs external to the actuator, mounted in opposition, the opening being adjusted by stops. Such a mechanism is bulky, expensive and difficult to adjust.
L'objet de l'invention est de remédier à ces inconvénients en proposant un actionneur comportant des moyens de retour en position de repos simple, peu coûteux, et ne nécessitant pas de réglage.The object of the invention is to overcome these drawbacks by proposing an actuator comprising return means in the simple rest position, inexpensive, and not requiring adjustment.
A cet effet, l'actionneur selon l'invention comporte un organe fixe constitué par un circuit statorique excité par au moins une bobine électrique, et un organe mobile en rotation comportant un aimant mince présentant 2N paires de pôles magnétiques aimantés en sens alterné. L'actionneur comporte en outre des moyens de rappel pour ramener l'organe mobile dans une position angulaire de repos prédéterminée constitués par un aimant auxiliaire mince de rappel disposé dans l'entrefer, présentant 2N paires de pôles magnétiques aimantés en sens alterné et solidaires des pôles statoriques.For this purpose, the actuator according to the invention comprises a fixed member constituted by a stator circuit excited by at least one electric coil, and a rotatable member comprising a thin magnet having 2N pairs of magnetic poles magnetized in alternating directions. The actuator further comprises biasing means for returning the movable member to a predetermined angular rest position constituted by a thin auxiliary magnet disposed in the gap, having 2N pairs of magnetic poles magnetized alternately and integral with the stator poles.
Selon une première variante, les pôles rotoriques et les pôles magnétiques de l'aimant auxiliaire de rappel sont en forme de secteurs annulaires minces.According to a first variant, the rotor poles and the magnetic poles of the auxiliary return magnet are in the form of thin annular sectors.
Selon une deuxième variante, les pôles rotoriques et les pôles magnétiques de l'aimant auxiliaire de rappel sont de forme tubulaire.According to a second variant, the rotor poles and the magnetic poles of the auxiliary booster magnet are tubular in shape.
De préférence, l'aimant auxiliaire de rappel est collé sur les pôles statoriques dans une position telle que la position d'équilibre sans courant du rotor corresponde à la position sans courant recherchée.Preferably, the auxiliary return magnet is bonded to the stator poles in a position such that the current-neutral equilibrium position of the rotor corresponds to the desired current-free position.
Selon un mode de réalisation particulier, le rotor coopère avec l'organe fixe par l'intermédiaire d'une butée à bille limitant le déplacement du rotor en direction de l'organe fixe. La butée à bille est sensiblement coplanaire avec le plan passant par l'extrémité des pôles statoriques. Le disque magnétique à 2N pôles constituant l'aimant auxiliaire comporte un évidement central d'une section au moins égale à la section de la butée à bille.According to a particular embodiment, the rotor cooperates with the fixed member via a ball stop limiting the movement of the rotor in the direction of the fixed organ. The ball stop is substantially coplanar with the plane passing through the end of the stator poles. The magnetic disk 2N poles constituting the auxiliary magnet has a central recess of a section at least equal to the section of the thrust ball.
Selon une variante, l'aimant rotorique est solidaire d'une culasse en un matériau magnétique doux.According to one variant, the rotor magnet is integral with a yoke made of a soft magnetic material.
Selon une autre variante, le stator comporte en outre une culasse de fermeture fixe réalisée en un matériau magnétique doux.According to another variant, the stator further comprises a fixed closure yoke made of a soft magnetic material.
L'invention concerne également une vanne, en particulier vanne d'admission d'air pour un moteur à explosion, entraîné par un tel actionneur.The invention also relates to a valve, in particular an air intake valve for an internal combustion engine, driven by such an actuator.
De préférence, l'aimant auxiliaire de rappel sera disposé de manière à ce que la position au repos corresponde à une ouverture partielle de l'admission d'air.Preferably, the auxiliary return magnet will be arranged in such a way that the rest position corresponds to a partial opening of the air intake.
L'invention sera mieux comprise à la lecture de la description qui suit, faisant référence aux figures annexées concernant un mode de réalisation non limitatif, où:
- la
figure 1 représente une vue éclatée d'un actionneur selon l'invention ; - la
figure 2 représente la courbe du couple en fonction de la position angulaire ; - la
figure 3 représente une vue en coupe médiane d'un actionneur selon l'invention ; - la
figure 4 représente une vue de dessus de l'actionneur ; - la
figure 5 représente une vue en coupe transversale d'une variante de réalisation.
- the
figure 1 represents an exploded view of an actuator according to the invention; - the
figure 2 represents the curve of the torque as a function of the angular position; - the
figure 3 represents a view in median section of an actuator according to the invention; - the
figure 4 represents a top view of the actuator; - the
figure 5 represents a cross-sectional view of an alternative embodiment.
La
L'actionneur est composé par une partie fixe (1) et une partie mobile en rotation (2). La partie fixe (1) présente 4 pôles statoriques (3 à 6) en forme de secteurs annulaires excités chacun par une bobine électrique (7 à 10). Les pôles statoriques (3 à 6) sont prolongés par des noyaux entourés par les bobines électriques (7 à 10), ces noyaux étant solidaires d'une embase (11).The actuator is composed of a fixed part (1) and a rotatable part (2). The fixed part (1) has 4 stator poles (3 to 6) in the form of annular sectors each excited by an electric coil (7 to 10). The stator poles (3 to 6) are extended by cores surrounded by the electric coils (7 to 10), these cores being integral with a base (11).
La structure statorique est connue et n'est pas exposée plus en détail.The stator structure is known and is not explained in more detail.
La partie rotorique (2) comporte 4 pôles magnétiques formés par des aimants minces (12 à 15) en forme de secteurs annulaires aimantés en sens alternés, perpendiculairement au plan transversal des secteurs annulaires.The rotor part (2) has 4 magnetic poles formed by thin magnets (12 to 15) in the form of annular sectors magnetized in alternating directions, perpendicularly to the transverse plane of the annular sectors.
Dans l'exemple décrit, les secteurs aimantés (12 à 15) sont collés sur une culasse (16). Cette culasse est montée sur un axe non représenté.In the example described, the magnetized sectors (12 to 15) are glued to a yoke (16). This yoke is mounted on an axis not shown.
L'actionneur comporte une deuxième série de secteurs annulaires aimantés (17 à 20) en sens alternés. Ces secteurs annulaires aimantés (17 à 20) forment un aimant auxiliaire de rappel collé sur les pôles statoriques (3 à 6).The actuator comprises a second series of magnetized annular sectors (17 to 20) in alternating directions. These magnetized annular sectors (17 to 20) form an auxiliary return magnet bonded to the stator poles (3 to 6).
Aussi longtemps que la transition entre deux pôles rotoriques adjacents reste en vis à vis de la surface d'un pôle statorique, l'actionneur fournira un couple du au courant constant et proportionnel au courant. La
Les courbes (70 à 72) correspondent au couple en fonction de la position, pour un courant de respectivement 1,5, 1 et 0,5 ampères. La courbe (31) représente le couple en l'absence de courant, pour un déplacement de l'organe rotatif (2) dans le sens trigonométrique. La courbe (32) représente le couple en l'absence de courant, pour un déplacement de l'organe rotatif (2) dans le sens anti-trigonométrique. Les courbes (74 à 76) correspondent au couple en fonction de la position, pour un courant respectivement de - 1,5, - 1 et - 0,5 ampères.The curves (70 to 72) correspond to the torque as a function of the position, for a current of respectively 1.5, 1 and 0.5 amperes. The curve (31) represents the torque in the absence of current, for a displacement of the rotary member (2) in the trigonometrical direction. The curve (32) represents the torque in the absence of current, for a displacement of the rotary member (2) in the anti-trigonometric direction. Curves (74 to 76) correspond to torque depending on the position, for a current respectively of - 1,5, - 1 and - 0,5 amperes.
La
L'aimant auxiliaire (45) de rappel est collé sur les pôles statoriques.The auxiliary magnet (45) for return is glued to the stator poles.
La
La
L'actionneur est composé par un stator (60) excité par deux bobines électriques (61, 62) définissant une cavité cylindrique à l'intérieur de laquelle est placée un rotor (63) présentant deux aimants semi-tubulaires (64, 65) aimantés radialement en sens opposé. Ces aimants (64, 65) sont collés sur une culasse.The actuator is composed of a stator (60) excited by two electrical coils (61, 62) defining a cylindrical cavity inside which is placed a rotor (63) having two magnets semi-tubular magnets (64, 65) radially in opposite directions. These magnets (64, 65) are glued on a cylinder head.
Le stator comporte deux aimants auxiliaires (66, 67) semi-tubulaires aimantés radialement en sens opposé logés dans la cavité centrale, dans l'entrefer tubulaire (68).The stator comprises two auxiliary magnets (66, 67) semi-tubular radially magnetized in opposite directions housed in the central cavity in the tubular air gap (68).
Claims (10)
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, and having a magnetic return torque around a stable rest position without current, including a fixed member (1) composed by a stator circuit (3 - 6) excited by at least one electric coil (7 - 10) and a rotating mobile member (2) comprising a thin magnet having 2N pairs of magnetic poles (12 - 15) magnetized in alternating directions, the actuator further including return means for returning the mobile member (2) in a predetermined angular rest position, characterized in that the return means are magnetic means or magnetostatic means composed by a thin auxiliary return magnet positioned in the air gap and having 2N pairs of magnetic poles magnetized in alternating directions, the magnetic poles (17 - 20) of said thin auxiliary magnet being integral with the stator poles (3 - 6).
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, according to claim 1, characterized in that the rotor poles (12 - 15) and the magnetic poles (17 - 20) of the auxiliary return magnet are in the form of thin annular sectors.
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, according to claim 2, characterized in that said magnetic poles (17 - 20) of the return means are magnetized perpendicularly to the transversal plane of the thin annular sectors.
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, according to claim 1, characterized in that the rotor poles (64, 65) and the magnetic poles (66, 67) of the auxiliary return magnet are in a tubular form.
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, according to any one of the preceding claims, characterized in that the auxiliary return magnet (17 - 20, 45; 66, 67) adheres on the stator poles (3 - 6, 44; 61, 62) in such a position that the equilibrium position without current of the rotor (2; 63) corresponds to the desired position without current.
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, according to one of claims 1 to 3, characterized in that the rotor (2) cooperates with the fixed member (1) through a ball stop (36 - 39) limiting the rotor (2) motion towards the fixed member (1), said ball stop (36 - 39) being substantially co-planar with the plane crossing the end of the stator poles (44), the auxiliary return magnet (45) being formed by a 2N poles magnetic disk comprising a central recess having a section at least equal to that of the ball stop (36 - 39).
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, according to any one of the preceding claims, characterized in that the rotor magnet (12 - 15, 43; 64, 65) is integral with a yoke (16, 35) made of a magnetically soft material.
- A single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, according to any one of the preceding claims, characterized in that the stator further includes a fixed locking yoke made of a magnetically soft material.
- A valve, and more particularly, an air intake valve for an internal combustion engine driven by a single-phase electro-mechanical actuator with a torque caused by a constant current on the major part of the working stroke, and having a magnetic return torque around a stable rest position without current, including a fixed member (1) composed by a stator circuit (3 - 6) excited by at least one electric coil (7 - 10) and a rotating mobile member (2) comprising a thin magnet having 2N pairs of magnetic poles magnetized in alternating directions, the actuator further including return means for returning the mobile member (2) in a predetermined angular rest position, characterized in that the return means are magnetic means or magnetostatic means composed by a thin auxiliary return magnet positioned in the air gap and having 2N pairs of magnetic poles magnetized in alternating directions, the magnetic poles (17 - 20) of said thin auxiliary magnet being integral with the stator poles (3 - 6).
- A valve, and more particularly, an air intake valve for an internal combustion engine driven by a single-phase electro-mechanical actuator according to claim 7, characterized in that the auxiliary return magnet (17 - 20; 45; 66, 67) is positioned so that the rest position corresponds to a partial opening of the air intake.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9600496A FR2744559B1 (en) | 1996-01-17 | 1996-01-17 | SINGLE-PHASE ROTARY ELECTROMAGNETIC ACTUATOR WITH MAGNETIC SPRING AND ELECTRIC VALVE USING SUCH AN ACTUATOR |
| FR9600496 | 1996-01-17 | ||
| PCT/FR1997/000080 WO1997026667A1 (en) | 1996-01-17 | 1997-01-16 | Rotatable single-phase electromagnetic actuator with a magnetic spring, and electrically operated valve using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0886875A1 EP0886875A1 (en) | 1998-12-30 |
| EP0886875B1 true EP0886875B1 (en) | 2008-05-21 |
Family
ID=9488188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97900660A Expired - Lifetime EP0886875B1 (en) | 1996-01-17 | 1997-01-16 | Rotatable single-phase electromagnetic actuator with a magnetic spring, and electrically operated valve using same |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0886875B1 (en) |
| JP (1) | JP2000503165A (en) |
| AT (1) | ATE396486T1 (en) |
| DE (1) | DE69738708D1 (en) |
| FR (1) | FR2744559B1 (en) |
| WO (1) | WO1997026667A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764221A (en) * | 2017-08-31 | 2019-05-17 | 北京影谱科技股份有限公司 | A kind of holder |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5828151A (en) * | 1997-08-27 | 1998-10-27 | Cts Corporation | Self aligning actuator with low bearing wear |
| FR2997745B1 (en) | 2012-11-06 | 2014-11-07 | Sonceboz Automotive Sa | MOTORIZED OVERHEAD VALVE WITH IMPROVED SEALING |
| FR3038772B1 (en) | 2015-07-07 | 2017-08-11 | Mmt Sa | ELECTROMAGNETIC ACTUATOR WITH DIRECT DRIVE. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4596970A (en) * | 1984-12-21 | 1986-06-24 | Pneumo Corporation | Limited angle torque motor with high stiffness and natural frequency |
| DE3908545C2 (en) * | 1989-03-16 | 1995-01-05 | Vdo Schindling | Adjustment drive for a throttle valve of an internal combustion engine |
| FR2670629B1 (en) * | 1990-12-17 | 1995-03-10 | Moving Magnet Tech | ROTARY SINGLE - PHASE ELECTROMAGNETIC ACTUATOR. |
| JP2573859Y2 (en) * | 1991-11-21 | 1998-06-04 | 株式会社ハーモニック・ドライブ・システムズ | Home position return mechanism for electromagnetic finite rotary motor |
| FR2688105B1 (en) * | 1992-02-28 | 1994-05-06 | Moving Magnet Technologies Sa | ELECTROMAGNETIC ROTARY ACTUATOR SINGLE-PHASE RACE BETWEEN 60 AND 120 DEGREES. |
| US5337030A (en) * | 1992-10-08 | 1994-08-09 | Lucas Industries, Inc. | Permanent magnet brushless torque actuator |
-
1996
- 1996-01-17 FR FR9600496A patent/FR2744559B1/en not_active Expired - Fee Related
-
1997
- 1997-01-16 WO PCT/FR1997/000080 patent/WO1997026667A1/en active IP Right Grant
- 1997-01-16 DE DE69738708T patent/DE69738708D1/en not_active Expired - Lifetime
- 1997-01-16 JP JP9508717A patent/JP2000503165A/en active Pending
- 1997-01-16 AT AT97900660T patent/ATE396486T1/en not_active IP Right Cessation
- 1997-01-16 EP EP97900660A patent/EP0886875B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764221A (en) * | 2017-08-31 | 2019-05-17 | 北京影谱科技股份有限公司 | A kind of holder |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997026667A1 (en) | 1997-07-24 |
| JP2000503165A (en) | 2000-03-14 |
| ATE396486T1 (en) | 2008-06-15 |
| FR2744559A1 (en) | 1997-08-08 |
| EP0886875A1 (en) | 1998-12-30 |
| FR2744559B1 (en) | 1998-04-10 |
| DE69738708D1 (en) | 2008-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0869519B1 (en) | Planar magnetic motor and magnetic microactuator with such a motor | |
| EP0829129B1 (en) | Electromagnetic actuator magnetically locked into two or more stable positions | |
| EP2792057B1 (en) | Electromagnetic actuator | |
| EP1174595B1 (en) | Valve actuator for internal combustion engine | |
| FR2793944A1 (en) | Circuit breaker opening/closing command mechanism having permanent magnet/winding and rotating armature stop positions moving. | |
| EP0886875B1 (en) | Rotatable single-phase electromagnetic actuator with a magnetic spring, and electrically operated valve using same | |
| FR2526603A1 (en) | LINEAR MOTOR WITH ROD AND GUIDE SLIDER | |
| EP1450011B1 (en) | Electromagnetic valve actuator for internal combustion engine and engine comprising such an actuator | |
| EP1450013B1 (en) | Electromagnetic valve actuator for internal combustion engine and engine comprising such an actuator | |
| EP1555463B1 (en) | Control device of a transmission, especially for vehicles | |
| EP1421590B1 (en) | Electromagnetic actuator with two stable end-of-travel positions, in particular for controlling air intake duct valves for internal combustion engines | |
| CA3197790A1 (en) | Bistable electromagnetic actuator and aircraft brake valve provided with such an actuator | |
| EP3939151B1 (en) | Electromagnetic device | |
| WO2002084082A1 (en) | Device for controlling a valve in a dead center position | |
| EP3729618B1 (en) | Actuator with open-loop control direct drive | |
| EP0419352B1 (en) | Electromagnetic valve with permanent magnet | |
| EP1576627B1 (en) | Electromagnetic valve actuator with permanent magnet | |
| FR2812121A1 (en) | Internal combustion engine valve linear electromagnetic driver having upper/lower branch magnetic circuit with magnetic coil drive valve section between upper/lower magnetic gap. | |
| EP1122868B1 (en) | Rotating actuator with limited trajectory and electric control | |
| FR2834118A1 (en) | Internal combustion engine motor valve opening/closing electromagnetic actuator having ferromagnetic circuits with excitation control symmetrically connected load under control cooperating armature pairs stable end travel positions. | |
| EP1091368A1 (en) | Electric actuator in particular for a motor vehicle valve | |
| FR2710695A1 (en) | Motor vehicle starter. | |
| EP1298776A1 (en) | Rotary actuator | |
| EP1229560A1 (en) | Electromagnetic valve actuator with electromagnet for an internal combustion engine | |
| FR2808616A1 (en) | ROTARY ELECTROMAGNET |
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: 19980710 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| 17Q | First examination report despatched |
Effective date: 19991006 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 69738708 Country of ref document: DE Date of ref document: 20080703 Kind code of ref document: P |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ABREMA AGENCE BREVET ET MARQUES, GANGUILLET |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080521 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080901 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080521 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080521 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080821 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081021 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080521 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080521 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20090224 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090131 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080521 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090116 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090116 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090131 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080822 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090116 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20151217 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20151222 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20151217 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69738708 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |