EP0647348B1 - Electromechanical actuator for controlling a flow modulator consisting of a pivotable vane in a pipe - Google Patents

Electromechanical actuator for controlling a flow modulator consisting of a pivotable vane in a pipe Download PDF

Info

Publication number
EP0647348B1
EP0647348B1 EP93913196A EP93913196A EP0647348B1 EP 0647348 B1 EP0647348 B1 EP 0647348B1 EP 93913196 A EP93913196 A EP 93913196A EP 93913196 A EP93913196 A EP 93913196A EP 0647348 B1 EP0647348 B1 EP 0647348B1
Authority
EP
European Patent Office
Prior art keywords
rotor
actuator
angular
pipe
return device
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
EP93913196A
Other languages
German (de)
French (fr)
Other versions
EP0647348A1 (en
Inventor
Jean-Laurent Peube
Jean-Claude Trigeassou
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Publication of EP0647348A1 publication Critical patent/EP0647348A1/en
Application granted granted Critical
Publication of EP0647348B1 publication Critical patent/EP0647348B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator

Definitions

  • the present invention relates to an electromechanical actuator for controlling a flow modulator of the pivoting flap type inside a pipe.
  • FR-A-2 613 089 discloses a method and a device for reducing such rapid fluctuations in the flow rate of a fluid flowing in a pipe.
  • a flow modulator having the appearance of a flap or a butterfly valve pivotally mounted in a pipe and the object of which is the creation of an instantaneous pressure drop; its dimensions determined as a function of this last objective, can generally lead to a shape and to dimensions which do not allow the total sealing of the pipe.
  • This modulator is controlled by a drive means such as a stepping motor.
  • a stepping motor may have too long a response time.
  • a device for controlling the pulsations of a fluid does not a priori include the angular position of the flow modulator as an operating parameter. However, knowledge of this position is essential if a stepper motor is used.
  • the present invention aims to provide an actuator having a low moment of inertia, of the order of 2.10 -7 kg / m 2 , which allows it to reach very high acceleration values, of the order of 5.10 4 radian / s 2 , thanks to which the flow modulator can reach frequencies of the order of a few tens to a few hundred hertz, frequencies necessary to effectively fulfill its role.
  • the present invention relates to an electromechanical actuator for controlling a shutter type flow modulator which is pivotally mounted inside a pipe and which is intended to create a very rapidly variable pressure drop in a fluid flowing at inside the pipeline, the actuator comprising a fixed part or stator, and a rotary mounted part or rotor, integral in rotation with the flow modulator, the stator and the rotor being provided with electromagnetic elements such as coils and possibly permanent magnets, which, when crossed by a current, are in an electromagnetic interaction situation which generates angular displacements of the rotor, only within a predetermined angular sector, characterized in that it oscillates in the pipe (1) and that it is provided with a return device which, during the oscillations of the rotor around a reference angular position, stores the kinetic energy of the rotor and of the flow modulator during angular decelerations of the rotor and returns it at least partially to the actuator during accelerations of the rotor, the operating frequency of the rotor being close to the resonant frequency
  • the actuator comprises adjustment means able to move the reference angular position of the rotor relative to the pipe to make it substantially coincide with the average angular position of the oscillating flow modulator in the pipeline.
  • This adjustment which can be automatic, makes it possible to improve the operation of the actuator according to the invention by adapting it to the required oscillations of the flow modulator.
  • the angular sector within which the rotor oscillates is between approximately 15 and 35 °, and preferably between approximately 20 and 30 °.
  • the actuator according to the invention has the advantage that the rotor and the flow modulator are integral with the same drive axis, hence a reduced moment of inertia.
  • the actuator can communicate to the flow modulator oscillation movements at high frequencies.
  • the actuator has its own resonant frequency, which is advantageously chosen from the range of oscillation frequencies of the actuator. It is therefore sufficient to provide a sufficient energy difference to give the rotor the required operating frequency, which is close to the resonant frequency of the actuator.
  • the actuator according to the invention has the advantage of being able to reach high oscillation frequencies while consuming little energy during its operation.
  • one of the advantages of the actuator according to the invention is that it can achieve higher oscillation frequencies than in the absence of the return device; in fact, the maximum frequency is fixed by the motor torque, that is to say by the electromagnetic power available per unit of rotor volume.
  • the maximum frequency is fixed by the motor torque, that is to say by the electromagnetic power available per unit of rotor volume.
  • this is in fact limited by the admissible electrical power in the windings, itself limited by the possibilities of heat evacuation due to the Joule effect which it creates.
  • the return device by allowing mechanical energy storage independent of the engine torque, without implementing significant inertia, thus ensures an additional instantaneous effective torque on the flow modulator.
  • This advantage is essential in the case of using the actuator on board a motor vehicle, to control the gases circulating in its exhaust line, since there is only one limited energy source.
  • the actuator return device is of the electromagnetic type and comprises a sensor for measuring the angular position of the rotor, electromagnetic elements comprising an electrical circuit arranged on the rotor and on the stator , and an electrical accumulator which stores the quantity of electricity produced in said electrical circuit during the angular decelerations of the rotor and which supplies the actuator with electrical energy during the angular accelerations of the rotor.
  • the accumulator may simply be the accumulator of the vehicle.
  • the second electrical circuit plays the role of a generator which recovers the kinetic energy of the rotor and the flow modulator during the deceleration phases of the rotor and transmits it to the accumulator.
  • the electrical circuit of the return device consists of the electrical circuit of the actuator, switching means making it possible to switch this circuit to the actuator position or to the energy recovery position.
  • switching means making it possible to switch this circuit to the actuator position or to the energy recovery position.
  • a device of the reversible chopper type can be used for this purpose.
  • the actuator is then used alternately as a motor to activate the flow modulator and as an alternator to charge the electric accumulator.
  • the resonant frequency specific to such an actuator depends on its electrical energy recovery circuit. By varying certain parameters of this circuit, it is therefore possible to modify its resonant frequency, which is a considerable advantage insofar as, as explained previously, the operation of the actuator is particularly economical in a range of frequencies close to its resonant frequency.
  • the angular position of the rotor can be moved relative to the pipe to make it coincide with the average position of the flow modulator, which makes it possible to improve actuator operation.
  • the return device is of the mechanical type and comprises an elastic member which is integral with the rotor on the one hand and the stator on the other hand.
  • the kinetic energy of the rotor and of the flow modulator, during the phases of deceleration of the rotor is here stored in the form of potential energy by the elastic member, which can for example be constituted by a spring in the form of a spiral.
  • the elastic member releases its potential energy and participates in the actuation of the flow modulator.
  • this actuator has a fixed resonance frequency. It therefore does not adapt as easily as the previous one to the different ranges of oscillation frequency of the flow modulator.
  • this embodiment makes it possible to increase the value of the torque for the high frequencies, since this energy storage device makes it possible, as has been said previously, to add to the value of the electromagnetic torque a mechanical torque to which no significant additional inertia is associated.
  • the actuator can include both an electromagnetic return device and a mechanical return device.
  • Such a configuration makes it possible to obtain an actuator capable of operating efficiently in a wider range of frequencies, by modifying its resonant frequency by combining energy efficiency and adaptability.
  • the actuator comprises a rest position which is a fixed position corresponding to a safety position of the flow modulator in the event of a malfunction or failure of the actuator.
  • the rest position of the actuator corresponds to that in which the flow modulator is maintained in an open position.
  • Figure 1 there is shown a pipe in which flows a pulsed fluid whose movement is materialized by an arrow.
  • a butterfly valve 2 is pivotally mounted around an axis 3 inside this pipe 1, and here constitutes a flow modulator within the meaning of the present invention.
  • An actuator 4 according to the invention is connected to the butterfly valve 2 by a drive shaft.
  • This actuator 4 is controlled by electrical signals conveyed by electrical wires 6 entering the housing of the actuator 4.
  • FIG. 2 shows a first embodiment of the actuator according to the invention.
  • This actuator comprises a central part 7 rotatably mounted which constitutes the rotor and a peripheral peripheral part 8 which constitutes the stator.
  • the rotor 7 is a permanent magnet with two poles 7 a and 7 b
  • the stator 8 is produced by soft iron elements 8 a and 8 b each surrounded by a coil 9.
  • the rotor is pivotally mounted around the shaft 5.
  • the parts 8 a and 8 b of the stator are integral with a chassis 10 on which they are held by lugs 11.
  • Switching means 12 connect the windings 9 of the stator 8 alternately to the electrical conductor wire 6 carrying the control signals and to an accumulator 13.
  • a command 14 activates the switching means 12 as a function of the angular position of the rotor which is supplied to it by a position sensor 15 mounted on the drive shaft 5.
  • control 14 makes the connection between the electrical signals conveyed by the wires 6 and the stator windings 9.
  • the angular position sensor 15 indicates to the control 14 that the rotor 7 is in the deceleration phase.
  • the switching means 12 On a signal from the control 14, the switching means 12 then make the connection between the windings 9 of the stator 8 and the accumulator 13.
  • the actuator behaves like an alternator which generates electrical energy, which is stored in the accumulator 13.
  • control 14 activates the switching means 12 to reconnect the wires 6 which convey the electrical signal for controlling the actuator to the windings 9.
  • the electrical energy stored in the accumulator 13 is returned to the actuator by means of the electrical signals conveyed by the wires 6, these signals coming from an electronic control device, not shown, including the supply of electrical energy. is provided at least partially by the accumulator 13.
  • the device shown in Figure 2 has the advantage of being able to adapt to any type of oscillation, because its own resonant frequency is variable.
  • the actuator shown in Figure 3 is of an embodiment significantly simpler than the previous one.
  • the return device here consists of a spiral-shaped spring 16 which is integral on the one hand with the chassis 10, and on the other with the drive shaft 5.
  • the electrical circuit for supplying the windings 9 of the stator 8 has not been shown.
  • the return device is of the mechanical type, the kinetic energy of the rotor being accumulated by the spring 16 in the form of potential energy.
  • the energy efficiency of the reminder device is high and the operating frequencies are higher than those obtained by means of the embodiment of FIG. 2.
  • the return devices shown in FIGS. 2 and 3 could be combined, which would make it possible to combine both the high energy efficiency of a mechanical return device with the adaptability of a device electromagnetic reminder.
  • the reference position around which the rotor oscillates is a fixed position.
  • a permanent magnet was placed on the rotor to reduce the number of windings, but the rotor can also include a winding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Control Of Turbines (AREA)

Abstract

An electromechanical actuator for controlling a flow modulator which is pivotably mounted in a pipe to cause a rapidly variable head loss in a fluid flowing therein, said actuator being provided with a stator and a rotor. The rotor (7) can move only through a predetermined angular sector by oscillating about an angular reference position, and a recoil device (12) is provided for storing the kinetic energy of the rotor (7) and flow modulator during angular deceleration of the rotor, and at least partially returning said energy to the actuator during angular acceleration of said rotor (7).

Description

La présente invention a pour objet un actionneur électromécanique pour commander un modulateur de débit du type volet pivotant à l'intérieur d'une canalisation.The present invention relates to an electromechanical actuator for controlling a flow modulator of the pivoting flap type inside a pipe.

Les fluctuations rapides de débit rencontrées dans les installations industrielles sont de nature dynamique, c'est-à-dire que leur comportement fait intervenir l'inertie et l'élasticité du fluide ou des parois des dispositifs. Elles peuvent être l'occasion de phénomènes particulièrement gênants tels que des vibrations excessives entraînant une fatigue des matériaux, ou des nuisances sonores. Ces fluctuations ne peuvent être contrôlées au moyen des dispositifs usuels d'obturation des conduites (vannes, robinets ...) qui nécessitent en pratique un temps assez long d'ouverture en raison de leur inertie ou de leur dispositif de déplacement (vis par exemple).The rapid fluctuations in flow rate encountered in industrial installations are dynamic in nature, that is to say that their behavior involves the inertia and elasticity of the fluid or of the walls of the devices. They can be the occasion of particularly troublesome phenomena such as excessive vibrations causing fatigue of the materials, or noise pollution. These fluctuations cannot be controlled by means of the usual pipe shut-off devices (valves, taps, etc.) which in practice require a fairly long opening time due to their inertia or their movement device (for example screws. ).

On connait par FR-A-2 613 089 un procédé et un dispositif de réduction de telles fluctuations rapides de débit d'un fluide s'écoulant dans une canalisation.FR-A-2 613 089 discloses a method and a device for reducing such rapid fluctuations in the flow rate of a fluid flowing in a pipe.

Dans ce document il est prévu un modulateur de débit ayant l'allure d'un volet ou d'une vanne papillon monté pivotant dans une canalisation et dont l'objet est la création d'une perte de charge instantanée ; ses dimensions déterminées en fonction de ce dernier objectif, peuvent conduire en général à une forme et à des dimensions qui ne permettent pas l'obturation totale de la conduite. Ce modulateur est commandé par un moyen d'entraînement tel qu'un moteur pas à pas.In this document there is provided a flow modulator having the appearance of a flap or a butterfly valve pivotally mounted in a pipe and the object of which is the creation of an instantaneous pressure drop; its dimensions determined as a function of this last objective, can generally lead to a shape and to dimensions which do not allow the total sealing of the pipe. This modulator is controlled by a drive means such as a stepping motor.

Cependant, s'il permet un positionnement précis du modulateur de débit, un moteur pas à pas peut présenter un temps de réponse trop long.However, if it allows precise positioning of the flow modulator, a stepping motor may have too long a response time.

En outre, un dispositif de contrôle des pulsations d'un fluide n'inclut pas, à priori, la position angulaire du modulateur de débit comme paramètre de fonctionnement. Or, la connaissance de cette position est indispensable si on utilise un moteur pas à pas.In addition, a device for controlling the pulsations of a fluid does not a priori include the angular position of the flow modulator as an operating parameter. However, knowledge of this position is essential if a stepper motor is used.

Il est donc nécessaire de disposer, en plus du moteur pas à pas, d'un dispositif de repérage précis de la position angulaire du modulateur de débit.It is therefore necessary to have, in addition to the stepping motor, a device for pinpointing the angular position of the flow modulator.

Pour pallier cet inconvénient, on peut penser à utiliser un moteur électrique classique.To overcome this drawback, one can think of using a conventional electric motor.

Mais l'actionnement du modulateur de débit est alors peu fiable et même dommageable au moteur lui-même, car les balais de ce dernier s'usent rapidement, du fait qu'il fonctionne constamment en régime de démarrage.But the actuation of the flow modulator is then unreliable and even damaging to the engine itself, because the brushes of the latter wear out quickly, owing to the fact that it operates constantly in starting mode.

Compte tenu des valeurs des fréquences d'oscillation requises pour obtenir un actionnement efficace du modulateur de débit, une transmission mécanique d'un mouvement de rotation de l'actionneur en un mouvement d'oscillation du modulateur de débit présenterait une inertie trop importante et exclurait toute possibilité d'adaptation des caractéristiques du mouvement alternatif à celles du débit mesuré.Given the values of the oscillation frequencies required to obtain effective actuation of the flow modulator, mechanical transmission of a rotational movement of the actuator into an oscillation movement of the flow modulator would have too much inertia and would exclude any possibility of adapting the characteristics of the reciprocating movement to those of the measured flow.

La présente invention vise à fournir un actionneur possédant un faible moment d'inertie, de l'ordre de 2.10-7 kg/ m2, ce qui lui permet d'atteindre des valeurs d'accélérations très élevées, de l'ordre de 5.104 radian/s2, grâce auxquelles le modulateur de débit peut atteindre des fréquences de l'ordre de quelques dizaines à quelques centaines de hertz, fréquences nécessaires pour remplir efficacement son rôle.The present invention aims to provide an actuator having a low moment of inertia, of the order of 2.10 -7 kg / m 2 , which allows it to reach very high acceleration values, of the order of 5.10 4 radian / s 2 , thanks to which the flow modulator can reach frequencies of the order of a few tens to a few hundred hertz, frequencies necessary to effectively fulfill its role.

La présente invention a pour objet un actionneur électromécanique pour commander un modulateur de débit du type volet qui est monté pivotant à l'intérieur d'une canalisation et qui est destiné à créer une perte de charge très rapidement variable dans un fluide s'écoulant à l'intérieur de la canalisation, l'actionneur comportant une partie fixe ou stator, et une partie montée rotative ou rotor, solidaire en rotation du modulateur de débit, le stator et le rotor étant munis d'éléments électromagnétiques tels que des bobinages et éventuellement des aimants permanents, lesquels, lorsqu'ils sont traversés par un courant, se trouvent dans une situation d'interaction électromagnétique qui engendre des déplacements angulaires du rotor, uniquement à l'intérieur d'un secteur angulaire prédéterminé, caractérisé par le fait qu'il oscille dans la canalisation (1) et qu'il est muni d'un dispositif de rappel qui, lors des oscillations du rotor autour d'une position angulaire de référence, emmagasine l'énergie cinétique du rotor et du modulateur de débit lors des décélérations angulaires du rotor et la restitue au moins partiellement à l'actionneur lors des accélérations angulaires du rotor, la fréquence de fonctionnement du rotor étant voisine de la fréquence de résonnance de l'actionneur.The present invention relates to an electromechanical actuator for controlling a shutter type flow modulator which is pivotally mounted inside a pipe and which is intended to create a very rapidly variable pressure drop in a fluid flowing at inside the pipeline, the actuator comprising a fixed part or stator, and a rotary mounted part or rotor, integral in rotation with the flow modulator, the stator and the rotor being provided with electromagnetic elements such as coils and possibly permanent magnets, which, when crossed by a current, are in an electromagnetic interaction situation which generates angular displacements of the rotor, only within a predetermined angular sector, characterized in that it oscillates in the pipe (1) and that it is provided with a return device which, during the oscillations of the rotor around a reference angular position, stores the kinetic energy of the rotor and of the flow modulator during angular decelerations of the rotor and returns it at least partially to the actuator during accelerations of the rotor, the operating frequency of the rotor being close to the resonant frequency of the actuator.

Dans un mode de réalisation particulier de l'invention, l'actionneur comporte des moyens de réglage aptes à déplacer la position angulaire de référence du rotor par rapport à la canalisation pour la faire coïncider sensiblement avec la position angulaire moyenne du modulateur de débit qui oscille dans la canalisation.In a particular embodiment of the invention, the actuator comprises adjustment means able to move the reference angular position of the rotor relative to the pipe to make it substantially coincide with the average angular position of the oscillating flow modulator in the pipeline.

Ce réglage, qui peut être automatique, permet d'améliorer le fonctionnement de l'actionneur selon l'invention en l'adaptant aux oscillations requises du modulateur de débit.This adjustment, which can be automatic, makes it possible to improve the operation of the actuator according to the invention by adapting it to the required oscillations of the flow modulator.

De préférence, le secteur angulaire à l'intérieur duquel oscille le rotor est compris entre environ 15 et 35°, et de préférence entre environ 20 et 30°.Preferably, the angular sector within which the rotor oscillates is between approximately 15 and 35 °, and preferably between approximately 20 and 30 °.

L'actionneur selon l'invention présente l'avantage que le rotor et le modulateur de débit sont solidaires d'un même axe d'entraînement, d'où un moment d'inertie réduit.The actuator according to the invention has the advantage that the rotor and the flow modulator are integral with the same drive axis, hence a reduced moment of inertia.

En outre, grâce à l'actionneur selon l'invention, on peut adapter rapidement les paramètres d'oscillation du modulateur de débit aux caractéristiques du débit de fluide.In addition, thanks to the actuator according to the invention, it is possible to quickly adapt the oscillation parameters of the flow modulator to the characteristics of the fluid flow rate.

Il suffit pour cela de modifier la forme du signal électrique de commande de l'actionneur.To do this, it suffices to modify the form of the electrical actuator control signal.

Selon l'invention, l'actionneur peut communiquer au modulateur de débit des mouvements d'oscillation à fréquences élevées.According to the invention, the actuator can communicate to the flow modulator oscillation movements at high frequencies.

En effet, grâce à la présence d'un dispositif de rappel, l'actionneur possède sa propre fréquence de résonance, qu'on choisit avantageusement dans la plage des fréquences d'oscillation de l'actionneur. Il suffit donc de fournir une différence d'énergie suffisante pour donner au rotor la fréquence de fonctionnement requise, qui est voisine de la fréquence de résonance de l'actionneur.Indeed, thanks to the presence of a return device, the actuator has its own resonant frequency, which is advantageously chosen from the range of oscillation frequencies of the actuator. It is therefore sufficient to provide a sufficient energy difference to give the rotor the required operating frequency, which is close to the resonant frequency of the actuator.

Il en résulte que le couple à transmettre au rotor pour lui imposer une telle fréquence d'oscillation est sensiblement réduit par rapport à celui qu'il faudrait fournir en l'absence de dispositif de rappel.It follows that the torque to be transmitted to the rotor to impose such an oscillation frequency on it is substantially reduced compared to that which would have to be provided in the absence of a reminder device.

Par conséquent, l'actionneur selon l'invention présente l'avantage de pouvoir atteindre des fréquences d'oscillation élevées tout en consommant peu d'énergie pendant son fonctionnement.Consequently, the actuator according to the invention has the advantage of being able to reach high oscillation frequencies while consuming little energy during its operation.

En outre, un des avantages de l'actionneur selon l'invention est de pouvoir atteindre des fréquences d'oscillation plus élevées qu'en l'absence du dispositif de rappel; en effet, la fréquence maximale est fixée par le couple moteur, c'est-à-dire par la puissance électromagnétique disponible par unité de volume de rotor. Or celle-ci est de fait limitée par la puissance électrique admissible dans les bobinages, elle même limitée par les possibilités d'évacuation de la chaleur due à l'effet Joule qu'elle crée. Le dispositif de rappel, en permettant un stockage d'énergie mécanique indépendant du couple moteur, sans mettre en oeuvre une inertie importante, assure ainsi un couple effectif instantané supplémentaire sur le modulateur de débit.In addition, one of the advantages of the actuator according to the invention is that it can achieve higher oscillation frequencies than in the absence of the return device; in fact, the maximum frequency is fixed by the motor torque, that is to say by the electromagnetic power available per unit of rotor volume. However, this is in fact limited by the admissible electrical power in the windings, itself limited by the possibilities of heat evacuation due to the Joule effect which it creates. The return device, by allowing mechanical energy storage independent of the engine torque, without implementing significant inertia, thus ensures an additional instantaneous effective torque on the flow modulator.

Cet avantage est primordial dans le cas d'une utilisation de l'actionneur à bord d'un véhicule automobile, pour contrôler les gaz circulant dans sa ligne d'échappement, du fait que l'on ne dispose dans ce cas que d'une source d'énergie limitée.This advantage is essential in the case of using the actuator on board a motor vehicle, to control the gases circulating in its exhaust line, since there is only one limited energy source.

Dans un mode de réalisation possible de l'invention, le dispositif de rappel de l'actionneur est du type électromagnétique et comporte un capteur pour mesurer la position angulaire du rotor, des éléments électromagnétiques comportant un circuit électrique disposés sur le rotor et sur le stator, et un accumulateur électrique qui emmagasine la quantité d'électricité produite dans ledit circuit électrique pendant les décélérations angulaires du rotor et qui alimente l'actionneur en énergie électrique lors des accélérations angulaires du rotor.In a possible embodiment of the invention, the actuator return device is of the electromagnetic type and comprises a sensor for measuring the angular position of the rotor, electromagnetic elements comprising an electrical circuit arranged on the rotor and on the stator , and an electrical accumulator which stores the quantity of electricity produced in said electrical circuit during the angular decelerations of the rotor and which supplies the actuator with electrical energy during the angular accelerations of the rotor.

Dans une variante de ce mode de réalisation, dans laquelle l'actionneur est monté sur une ligne d'échappement d'un véhicule automobile, l'accumulateur peut être simplement l'accumulateur du véhicule.In a variant of this embodiment, in which the actuator is mounted on an exhaust line of a motor vehicle, the accumulator may simply be the accumulator of the vehicle.

On comprend que, dans ce mode de réalisation, le deuxième circuit électrique joue le rôle d'un générateur qui récupère l'énergie cinétique du rotor et du modulateur de débit lors des phases de décélération du rotor et la transmet à l'accumulateur.It is understood that, in this embodiment, the second electrical circuit plays the role of a generator which recovers the kinetic energy of the rotor and the flow modulator during the deceleration phases of the rotor and transmits it to the accumulator.

Dans une variante, le circuit électrique du dispositif de rappel est constitué par le circuit électrique de l'actionneur, des moyens de commutation permettant de commuter ce circuit en position actionneur ou en position récupérateur d'énergie. On peut par exemple utiliser à cet effet un dispositif du type hacheur réversible.In a variant, the electrical circuit of the return device consists of the electrical circuit of the actuator, switching means making it possible to switch this circuit to the actuator position or to the energy recovery position. For example, a device of the reversible chopper type can be used for this purpose.

L'actionneur est alors utilisé alternativement comme moteur pour actionner le modulateur de débit et comme alternateur pour charger l'accumulateur électrique.The actuator is then used alternately as a motor to activate the flow modulator and as an alternator to charge the electric accumulator.

La fréquence de résonnance propre à un tel actionneur dépend de son circuit électrique de récupération d'énergie. En faisant varier certains paramètres de ce circuit, on peut donc modifier sa fréquence de résonnance, ce qui est un avantage considérable dans la mesure où, comme expliqué précédemment, le fonctionnement de l'actionneur est particulièrement économique dans une gamme de fréquences voisines de sa fréquence de résonnance.The resonant frequency specific to such an actuator depends on its electrical energy recovery circuit. By varying certain parameters of this circuit, it is therefore possible to modify its resonant frequency, which is a considerable advantage insofar as, as explained previously, the operation of the actuator is particularly economical in a range of frequencies close to its resonant frequency.

En outre, en adaptant certains paramètres électroniques de l'actionneur selon ce mode de réalisation, on peut déplacer la position angulaire du rotor par rapport à la canalisation pour la faire coïncider avec la position moyenne du modulateur de débit, ce qui permet d'améliorer le fonctionnement de l'actionneur.In addition, by adapting certain electronic parameters of the actuator according to this embodiment, the angular position of the rotor can be moved relative to the pipe to make it coincide with the average position of the flow modulator, which makes it possible to improve actuator operation.

Selon un autre mode de réalisation de l'invention, le dispositif de rappel est du type mécanique et comporte un organe élastique qui est solidaire du rotor d'une part et du stator d'autre part.According to another embodiment of the invention, the return device is of the mechanical type and comprises an elastic member which is integral with the rotor on the one hand and the stator on the other hand.

L'énergie cinétique du rotor et du modulateur de débit, lors des phases de décélération du rotor est ici emmagasinée sous forme d'énergie potentielle par l'organe élastique, qui peut être par exemple constitué par un ressort en forme de spirale. Lors des phases d'accélération du rotor, l'organe élastique libère son énergie potentielle et participe à l'actionnement du modulateur de débit.The kinetic energy of the rotor and of the flow modulator, during the phases of deceleration of the rotor is here stored in the form of potential energy by the elastic member, which can for example be constituted by a spring in the form of a spiral. During the acceleration phases of the rotor, the elastic member releases its potential energy and participates in the actuation of the flow modulator.

La quasi absence de frottements ainsi que la transformation directe de l'énergie cinétique en énergie potentielle accroissent le rendement énergétique d'un tel dispositif de rappel.The virtual absence of friction and the direct transformation of kinetic energy into energy potential increase the energy efficiency of such a reminder device.

Toutefois, si son dispositif de rappel est énergétiquement rentable, cet actionneur possède une fréquence de résonnance fixe. Il ne s'adapte donc pas aussi aisément que le précédent aux différentes gammes de fréquence d'oscillation du modulateur de débit.However, if its reminder device is energetically profitable, this actuator has a fixed resonance frequency. It therefore does not adapt as easily as the previous one to the different ranges of oscillation frequency of the flow modulator.

Cependant, ce mode de réalisation permet d'augmenter la valeur du couple pour les hautes fréquences, puisque ce dispositif de stockage d'énergie permet, ainsi qu'il a été dit précédemment, d'ajouter à la valeur du couple électromagnétique un couple mécanique auquel aucune inertie supplémentaire notable n'est associée.However, this embodiment makes it possible to increase the value of the torque for the high frequencies, since this energy storage device makes it possible, as has been said previously, to add to the value of the electromagnetic torque a mechanical torque to which no significant additional inertia is associated.

Par ailleurs, on peut modifier la position angulaire de l'actionneur par rapport à la canalisation, à l'aide de moyens mécaniques aptes à faire pivoter l'actionneur autour d'un axe confondu avec l'axe du rotor. Ainsi, on peut déplacer la position angulaire de référence du rotor pour la faire coïncider avec la position angulaire moyenne du modulateur de débit oscillant dans la canalisation.Furthermore, it is possible to modify the angular position of the actuator relative to the pipeline, using mechanical means able to pivot the actuator about an axis coincident with the axis of the rotor. Thus, one can move the reference angular position of the rotor to make it coincide with the average angular position of the oscillating flow modulator in the pipeline.

Dans une troisième variante, l'actionneur peut comporter à la fois un dispositif de rappel électromagnétique et un dispositif de rappel mécanique.In a third variant, the actuator can include both an electromagnetic return device and a mechanical return device.

Une telle configuration permet d'obtenir un actionneur apte à fonctionner efficacement dans une plus large gamme de fréquences, par modification de sa fréquence de résonnance en combinant rendement énergétique et adaptabilité.Such a configuration makes it possible to obtain an actuator capable of operating efficiently in a wider range of frequencies, by modifying its resonant frequency by combining energy efficiency and adaptability.

Avantageusement, l'actionneur comporte une position de repos qui est une position fixe correspondant à une position de sécurité du modulateur de débit en cas de disfonctionnement ou de panne de l'actionneur.Advantageously, the actuator comprises a rest position which is a fixed position corresponding to a safety position of the flow modulator in the event of a malfunction or failure of the actuator.

Si par exemple l'actionneur est monté sur une ligne d'échappement d'un véhicule automobile, la position de repos de l'actionneur correspond à celle dans laquelle le modulateur de débit est maintenu dans une position ouverte.If for example the actuator is mounted on an exhaust line of a motor vehicle, the rest position of the actuator corresponds to that in which the flow modulator is maintained in an open position.

Dans le but de mieux faire comprendre l'invention, on va en décrire maintenant un mode de réalisation donné à titre d'exemple et sans aucun caractère limitatif en référence au dessin schématique annexé dans lequel :

  • la figure 1 représente schématiquement une canalisation équipée d'un actionneur selon l'invention,
  • la figure 2 représente un premier mode de réalisation d'un actionneur selon l'invention, et
  • la figure 3 représente un deuxième mode de réalisation d'un actionneur selon l'invention.
In order to better understand the invention, we will now describe an embodiment given as of example and without any limiting character with reference to the appended schematic drawing in which:
  • FIG. 1 schematically represents a pipe fitted with an actuator according to the invention,
  • FIG. 2 represents a first embodiment of an actuator according to the invention, and
  • FIG. 3 represents a second embodiment of an actuator according to the invention.

Sur la figure 1 on a représenté une canalisation dans laquelle circule un fluide pulsé dont le déplacement est matérialisé par une flèche.In Figure 1 there is shown a pipe in which flows a pulsed fluid whose movement is materialized by an arrow.

Une vanne papillon 2 est montée pivotante autour d'un axe 3 à l'intérieur de cette canalisation 1, et constitue ici un modulateur de débit au sens de la présente invention.A butterfly valve 2 is pivotally mounted around an axis 3 inside this pipe 1, and here constitutes a flow modulator within the meaning of the present invention.

Un actionneur 4 selon l'invention est relié à la vanne papillon 2 par un arbre d'entraînement.An actuator 4 according to the invention is connected to the butterfly valve 2 by a drive shaft.

Cet actionneur 4 est commandé par des signaux électriques que véhiculent des fils électriques 6 pénétrant dans le boîtier de l'actionneur 4.This actuator 4 is controlled by electrical signals conveyed by electrical wires 6 entering the housing of the actuator 4.

Sur cette figure, il est clair que par des mouvements d'oscillation de la vanne papillon 2, on crée une perte de charge variable dans le fluide circulant à l'intérieur de la canalisation 1.In this figure, it is clear that by oscillating movements of the butterfly valve 2, a variable pressure drop is created in the fluid circulating inside the pipe 1.

Sur la figure 2 on a représenté un premier mode de réalisation de l'actionneur selon l'invention.FIG. 2 shows a first embodiment of the actuator according to the invention.

Cet actionneur comporte une partie centrale 7 montée rotative qui constitue le rotor et une partie périphérique 8 fixe qui constitue le stator.This actuator comprises a central part 7 rotatably mounted which constitutes the rotor and a peripheral peripheral part 8 which constitutes the stator.

Dans ce mode de réalisation, le rotor 7 est un aimant permanent à deux pôles 7a et 7b, tandis que le stator 8 est réalisé par des éléments en fer doux 8a et 8b entourés chacun d'un bobinage 9.In this embodiment, the rotor 7 is a permanent magnet with two poles 7 a and 7 b , while the stator 8 is produced by soft iron elements 8 a and 8 b each surrounded by a coil 9.

Le rotor est monté pivotant autour de l'arbre 5.The rotor is pivotally mounted around the shaft 5.

Les parties 8a et 8b du stator sont solidaires d'un châssis 10 sur lequel elles sont maintenues par des pattes 11.The parts 8 a and 8 b of the stator are integral with a chassis 10 on which they are held by lugs 11.

Des moyens de commutation 12 relient les bobinages 9 du stator 8 alternativement au fil conducteur électrique 6 véhiculant les signaux de commande et à un accumulateur 13.Switching means 12 connect the windings 9 of the stator 8 alternately to the electrical conductor wire 6 carrying the control signals and to an accumulator 13.

Une commande 14 active les moyens de commutation 12 en fonction de la position angulaire du rotor qui lui est fournie par un capteur de position 15 monté sur l'arbre d'entraînement 5.A command 14 activates the switching means 12 as a function of the angular position of the rotor which is supplied to it by a position sensor 15 mounted on the drive shaft 5.

Le fonctionnement de l'actionneur est le suivant :The operation of the actuator is as follows:

Pendant les phases d'accélération du rotor la commande 14 réalise la connexion entre les signaux électriques véhiculés par les fils 6 et les bobinages 9 stator 8.During the acceleration phases of the rotor, the control 14 makes the connection between the electrical signals conveyed by the wires 6 and the stator windings 9.

Il en résulte un déplacement angulaire accéléré du rotor 7.This results in an accelerated angular displacement of the rotor 7.

Une fois que ledit rotor 7 a dépassé sa position angulaire de référence, le capteur de position angulaire 15 indique à la commande 14 que la rotor 7 se trouve en phase de décélération.Once said rotor 7 has exceeded its reference angular position, the angular position sensor 15 indicates to the control 14 that the rotor 7 is in the deceleration phase.

Sur un signal de la commande 14, les moyens de commutation 12 réalisent alors la connexion entre les bobinages 9 du stator 8 et l'accumulateur 13.On a signal from the control 14, the switching means 12 then make the connection between the windings 9 of the stator 8 and the accumulator 13.

Pendant la phase de décélération, l'actionneur se comporte comme un alternateur qui génère de l'énergie électrique, laquelle est emmagasinée dans l'accumulateur 13.During the deceleration phase, the actuator behaves like an alternator which generates electrical energy, which is stored in the accumulator 13.

Pour la phase d'accélération suivante, la commande 14 active les moyens de commutation 12 pour relier à nouveau les fils 6 qui véhiculent le signal électrique de commande de l'actionneur aux bobinages 9.For the next acceleration phase, the control 14 activates the switching means 12 to reconnect the wires 6 which convey the electrical signal for controlling the actuator to the windings 9.

L'énergie électrique emmagasinée dans l'accumulateur 13 est restituée à l'actionneur par l'intermédiaires des signaux électriques véhiculés par les fils 6, ces signaux provenant d'un dispositif électronique de commande, non représenté, dont l'alimentation en énergie électrique est assurée au moins partiellement par l'accumulateur 13.The electrical energy stored in the accumulator 13 is returned to the actuator by means of the electrical signals conveyed by the wires 6, these signals coming from an electronic control device, not shown, including the supply of electrical energy. is provided at least partially by the accumulator 13.

Le dispositif représenté sur la figure 2 présente l'avantage de pouvoir s'adapter à tout type d'oscillation, du fait que sa propre fréquence de résonnance est variable.The device shown in Figure 2 has the advantage of being able to adapt to any type of oscillation, because its own resonant frequency is variable.

L'actionneur représenté sur la figure 3 est d'un mode de réalisation sensiblement plus simple que le précédent.The actuator shown in Figure 3 is of an embodiment significantly simpler than the previous one.

Dans ce mode de réalisation, on retrouve le rotor 7 monté rotatif autour de l'arbre 5, ainsi que le stator 8 qui repose sur le châssis 10 par des pattes 11.In this embodiment, we find the rotor 7 rotatably mounted around the shaft 5, as well as the stator 8 which rests on the chassis 10 by lugs 11.

Le dispositif de rappel est ici constitué par un ressort en forme de spirale 16 qui est solidaire d'une part du châssis 10, et d'autre part de l'arbre d'entraînement 5.The return device here consists of a spiral-shaped spring 16 which is integral on the one hand with the chassis 10, and on the other with the drive shaft 5.

Le circuit électrique d'alimentation des bobinages 9 du stator 8 n'a pas été représenté.The electrical circuit for supplying the windings 9 of the stator 8 has not been shown.

Dans ce mode de réalisation, le dispositif de rappel est du type mécanique, l'énergie cinétique du rotor étant accumulée par le ressort 16 sous forme d'énergie potentielle.In this embodiment, the return device is of the mechanical type, the kinetic energy of the rotor being accumulated by the spring 16 in the form of potential energy.

Sauf si un dispositif annexe est capable d'agir sur la raideur du ressort, la fréquence de résonnance d'un tel actionneur est fixe, ce qui présente l'inconvénient que l'actionneur ne peut pas s'adapter à toute fréquence d'oscillation sans que le couple nécessaire à transmettre au rotor n'augmente.Unless an additional device is capable of acting on the stiffness of the spring, the resonant frequency of such an actuator is fixed, which has the disadvantage that the actuator cannot adapt to any frequency of oscillation without increasing the torque required to be transmitted to the rotor.

Par contre, comme expliqué plus haut, le rendement énergétique du dispositif de rappel est élevé et les fréquences de fonctionnement sont supérieures à celles obtenues au moyen du mode de réalisation de la figure 2.On the other hand, as explained above, the energy efficiency of the reminder device is high and the operating frequencies are higher than those obtained by means of the embodiment of FIG. 2.

Dans un autre mode de réalisation, on pourrait cumuler les dispositifs de rappel représentés sur les figures 2 et 3, ce qui permettrait d'allier à la fois le haut rendement énergétique d'un dispositif de rappel mécanique à l'adaptabilité d'un dispositif de rappel électromagnétique.In another embodiment, the return devices shown in FIGS. 2 and 3 could be combined, which would make it possible to combine both the high energy efficiency of a mechanical return device with the adaptability of a device electromagnetic reminder.

Dans les deux modes de réalisation décrits précédemment, la position de référence autour de laquelle oscille le rotor, est une position fixe.In the two embodiments described above, the reference position around which the rotor oscillates is a fixed position.

Pourtant, il peut être avantageux de faire varier cette position de référence.However, it may be advantageous to vary this reference position.

Ceci est facilement réalisable si on prévoit un moyen permettant de faire pivoter l'actionneur 4 autour de l'arbre 5.This is easily achievable if a means is provided allowing the actuator 4 to pivot around the shaft 5.

Il est bien entendu que les modes de réalisation qui viennent d'être décrits ne présentent aucun caractère limitatif et qu'ils pourront recevoir toutes modifications désirables sans sortir pour cela du cadre de l'invention.It is understood that the embodiments which have just been described have no limiting character and that they can receive any desirable modifications without departing from the scope of the invention.

En particulier, on n'a représenté ici que des rotor et stator bipolaires, mais il est bien évident qu'ils pourraient comporter plus de deux pôles pour augmenter le couple transmis au rotor.In particular, only bipolar rotor and stator have been shown here, but it is obvious that they could have more than two poles to increase the torque transmitted to the rotor.

Par ailleurs, on a placé un aimant permanent sur le rotor pour diminuer le nombre de bobinages, mais le rotor peut également comporter un bobinage.Furthermore, a permanent magnet was placed on the rotor to reduce the number of windings, but the rotor can also include a winding.

Du fait des oscillations autour d'une position de référence, il est inutile de prévoir des balais dans ce cas, des fils souples de longueur adéquate pouvant avantageusement relier le bobinage du rotor au circuit électrique de l'actionneur.Due to the oscillations around a reference position, it is unnecessary to provide brushes in this case, flexible wires of adequate length which can advantageously connect the winding of the rotor to the electrical circuit of the actuator.

Claims (8)

  1. Electromagnetic actuator for controlling a flow regulator of the vane type (2) which is mounted so that it can pivot inside a pipe (1) and which is designed to create a very rapidly variable head loss in a fluid flowing inside the pipe, the actuator (2,4,5,7,8) including a stationary part or stator (8), and a part mounted so that it can rotate, or rotor (7), rotationally secured to the flow regulator (2), the stator and the rotor being equipped with electromagnetic elements (7a, 7b, 8a, 8b, 9) such as windings and possibly with permanent magnets, which, when a current passes through them, are in a situation of electromagnetic interaction which generates angular displacements of the rotor (7) solely within a predetermined angular sector, characterized in that it oscillates inside the pipe (1) and in that it is equipped with a return device (12-16) which, during the oscillations of the rotor about an angular reference position, stores up the kinetic energy of the rotor (7) and of the flow regulator (2) during the angular decelerations of the rotor (7) and restores it, at least in part, to the actuator (2,4,5,7,8) during the angular accelerations of the rotor (7), the operating frequency of the rotor (7) being close to the resonant frequency of the actuator (2,4,5,7,8).
  2. Actuator according to Claim 1, characterized in that it includes adjustment means capable of shifting the angular reference position of the rotor (7) relative to the pipe (1) to make it coincide substantially with the mean angular position of the flow regulator (2) oscillating inside the pipe (1).
  3. Actuator according to either one of Claims 1 and 2, characterized in that the angular sector within which the rotor (7) oscillates lies between approximately 15 and 35 degrees and, preferably, between approximately 20 and 30 degrees.
  4. Actuator according to any one of Claims 1 to 3, characterized in that the return device (12-15) is of the electromagnetic type and includes a sensor (15) for measuring the angular position of the rotor (7), electromagnetic elements (7a, 7b, 8a, 8b, 9) including an electric circuit and located on the rotor (7) and on the stator (8) and an electric accumulator (13) which stores up the amount of electricity produced in the said electric circuit during the angular decelerations of the rotor (7) and which supplies the actuator (4) with electrical energy during the angular accelerations of the rotor (7).
  5. Actuator according to Claim 4, characterized in that the electric circuit of the return device (12-15) consists of the electric circuit of the actuator (4), switching means (12) making it possible to switch this circuit into an actuating position or into a position for recovering electrical energy.
  6. Actuator according to any one of Claims 1 to 3, characterized in that the return device (16) is of the mechanical type and includes an elastic member (16) secured to the rotor (7) on the one hand, and to the stator (8) on the other hand.
  7. Actuator according to any one of Claims 1 to 3, characterized in that it includes both an electromagnetic return device (12-15) according to any one of Claims 4 and 5, and a mechanical return device (16) according to Claim 6.
  8. Actuator according to any one of the preceding claims, characterized in that it includes a position of rest corresponding to a position of the flow regulator (2) which is safe in the event of malfunction of the actuator (4).
EP93913196A 1992-06-26 1993-06-25 Electromechanical actuator for controlling a flow modulator consisting of a pivotable vane in a pipe Expired - Lifetime EP0647348B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9207899A FR2693055B1 (en) 1992-06-26 1992-06-26 ELECTROMECHANICAL ACTUATOR FOR CONTROLLING A FLOW MODULATOR OF THE PIVOTING SHUTTER TYPE WITHIN A PIPELINE.
FR9207899 1992-06-26
PCT/FR1993/000643 WO1994000858A1 (en) 1992-06-26 1993-06-25 Electromechanical actuator for controlling a flow modulator consisting of a pivotable vane in a pipe

Publications (2)

Publication Number Publication Date
EP0647348A1 EP0647348A1 (en) 1995-04-12
EP0647348B1 true EP0647348B1 (en) 1996-10-16

Family

ID=9431256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93913196A Expired - Lifetime EP0647348B1 (en) 1992-06-26 1993-06-25 Electromechanical actuator for controlling a flow modulator consisting of a pivotable vane in a pipe

Country Status (7)

Country Link
US (1) US5785296A (en)
EP (1) EP0647348B1 (en)
JP (1) JP3113679B2 (en)
DE (1) DE69305515T2 (en)
ES (1) ES2093434T3 (en)
FR (1) FR2693055B1 (en)
WO (1) WO1994000858A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042214A1 (en) 2002-11-02 2004-05-21 Deutsche Montan Technologie Gmbh Electromechanical drive unit for controlling and regulating a butterfly valve used as a flow rate modulator in a pipe
CN105546198A (en) * 2016-03-01 2016-05-04 魏伯卿 Cut-off electromagnetic valve

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531205A (en) * 1995-03-31 1996-07-02 Siemens Electric Limited Rotary diesel electric EGR valve
US5562081A (en) * 1995-09-12 1996-10-08 Philips Electronics North America Corporation Electrically-controlled throttle with variable-ratio drive
DE19651920A1 (en) * 1996-12-13 1998-06-18 Philips Patentverwaltung Electromotive adjustment device
WO1998049112A1 (en) * 1997-04-28 1998-11-05 Koninklijke Philips Electronics N.V. Method of manufacturing a conductive layer on a substrate
JP3665710B2 (en) * 1998-05-18 2005-06-29 愛三工業株式会社 DC torque motor, drive control device using the same, and throttle valve control device
JP3445173B2 (en) * 1998-12-11 2003-09-08 ミネベア株式会社 Actuator device with valve
JP3864008B2 (en) * 1999-02-09 2006-12-27 三菱電機株式会社 Valve device
FR2808916B1 (en) * 2000-05-11 2003-08-15 Jean Laurent Peube ELECTROAEROACOUSTIC SOURCE AND SYSTEM FOR ACTIVE NOISE CONTROL
DE10111991A1 (en) * 2001-03-13 2002-09-19 Schatz Thermo Engineering Air impulse valve drive
DE10218471A1 (en) * 2002-04-25 2003-11-06 Mann & Hummel Filter Electromagnetically actuated valve is used to vary the flow in a pipe or channel and has a pair of coils that provide bidirectional movement to change area
DE10228856A1 (en) * 2002-06-27 2004-01-22 Siemens Ag Direct drive for a throttle valve shaft in a throttle valve assembly
TW201107639A (en) * 2007-04-27 2011-03-01 Edwards Japan Ltd Plate rotating device, exhaust path opening degree changing device, exhausted device, transfer device, beam device, and gate valve
US9435462B2 (en) * 2013-05-22 2016-09-06 Precision Engine Control Corporation Valve with latching return spring
US9797521B1 (en) * 2016-08-09 2017-10-24 Edward P Davis Rotary magnetic coupling actuated valve with external magnets and internal magnetic flux path
US10151403B2 (en) 2016-12-30 2018-12-11 Edward P. Davis Asymmetric torque magnetic valve actuator
JP6243073B1 (en) * 2017-05-10 2017-12-06 株式会社空 Rotating electric machine
CN107332396A (en) * 2017-06-26 2017-11-07 桐昆集团浙江恒通化纤有限公司 A kind of motor rotation axis rotary limited device
US20200232575A1 (en) * 2019-01-22 2020-07-23 Baker Hughes, A Ge Company, Llc Valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158460A (en) * 1984-08-27 1986-03-25 Hitachi Ltd Torque motor
US4800308A (en) * 1988-03-21 1989-01-24 Eti Systems Motorized control unit with torsional elastomeric bias
DE3908546C2 (en) * 1989-03-16 1995-01-05 Vdo Schindling Electromotive adjustment drive for a throttle valve of an internal combustion engine
SE465737B (en) * 1990-05-31 1991-10-21 Alfa Laval Agri Int VALVE DEVICE
NL9002642A (en) * 1990-12-03 1992-07-01 Philips Nv DEVICE FOR INTERRUPTING A MATERIAL FLOW.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042214A1 (en) 2002-11-02 2004-05-21 Deutsche Montan Technologie Gmbh Electromechanical drive unit for controlling and regulating a butterfly valve used as a flow rate modulator in a pipe
DE10251116A1 (en) * 2002-11-02 2004-05-27 Deutsche Montan Technologie Gmbh Electromechanical drive for control/regulation of flow rate of modulating choke flap has rod at one end in vibration generator with coil/core/active counter bearing, other end joined to flap axle
CN105546198A (en) * 2016-03-01 2016-05-04 魏伯卿 Cut-off electromagnetic valve
CN105546198B (en) * 2016-03-01 2017-11-07 魏伯卿 Clean cut system magnetic valve

Also Published As

Publication number Publication date
WO1994000858A1 (en) 1994-01-06
FR2693055A1 (en) 1993-12-31
JP3113679B2 (en) 2000-12-04
FR2693055B1 (en) 1995-06-30
DE69305515T2 (en) 1997-05-15
ES2093434T3 (en) 1996-12-16
EP0647348A1 (en) 1995-04-12
US5785296A (en) 1998-07-28
JPH07508372A (en) 1995-09-14
DE69305515D1 (en) 1996-11-21

Similar Documents

Publication Publication Date Title
EP0647348B1 (en) Electromechanical actuator for controlling a flow modulator consisting of a pivotable vane in a pipe
CA2135469C (en) Method and apparatus for controlling variable pitch blades in a rotor
EP1669648B1 (en) Motor operated valve
EP1115977A1 (en) Wind turbine with counter rotating rotors
EP2867498B1 (en) Device for ventilating and supplying electrical power to an aircraft engine computer
FR2744492A1 (en) VALVE CONTROL FOR AN INTERNAL COMBUSTION ENGINE
FR2718544A1 (en) Device for positioning an adjusting element having a plurality of stable positions.
FR2896821A1 (en) SCREEN DEVICE, SUCH AS IN PARTICULAR A STORE, OR STILL A DEVICE FOR CLOSING AND OPENING AN OPENING HAVING IRREVERSIBLE MOTOREDUCING MEANS.
EP2593646B1 (en) Device for transmitting mechanical torque between a driving member and a driven member, and air-compression system for supplying power to an engine using such a device
BE1014275A3 (en) Speed transmission device.
FR2517899A1 (en) DIRECT CURRENT MOTOR WITHOUT BRUSH
FR2801146A1 (en) MOTOR VEHICLE AIR CONDITIONING VALVE ACTUATOR
EP4259493A1 (en) Actuator with integrated parking brake
FR2786244A1 (en) Direct control fuel valve for fuel injection circuit in aircraft jet engines, has brushless electric motor controlling the rotational position of rotary slide valve in fuel valve
FR2507252A1 (en) Horizontal axis wind turbine with front air deflector - uses screw mechanism responding to turbine speed to vary deflector position to vary amount of air directed onto turbine
EP0642209A1 (en) Apparatus for starting a turbine, especially a gas-turbine
FR3060526A1 (en) ELECTROMECHANICAL STEM ACTUATION SYSTEM FOR A TURBOMACHINE PROPELLER
EP0506536A1 (en) Device for moving the wings of a projectile
FR2858368A1 (en) Starter for driving internal combustion engine, has belt and pulley rotatably mounted on shaft section that has front free end carried by arm that is integrated to support unit, and moving unit having rear wheel
EP2762434A1 (en) System for controlling and limiting speed for monitoring the movement of a movable member
FR2947588A1 (en) Fan's blade pitch varying system for single fan jet-prop engine in aircraft, has control unit operated along power generating mode in which coupling units occupy activated configuration and electric machine occupies generator configuration
WO2004010567A2 (en) Magnetic motor with diamagnetic and non-magnetic mask
FR2847300A1 (en) CAMSHAFT ADJUSTMENT
FR2977745A1 (en) METHOD FOR CONTROLLING AN ELECTRIC ENGINE AGENT FOR DRIVING A TURBINE OF A MOTORCYCLE FAN
WO2005091491A1 (en) Energy storage electricity generating device

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: 19941227

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT NL SE

17Q First examination report despatched

Effective date: 19950505

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT NL SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961017

REF Corresponds to:

Ref document number: 69305515

Country of ref document: DE

Date of ref document: 19961121

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2093434

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20120530

Year of fee payment: 20

Ref country code: DE

Payment date: 20120524

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120525

Year of fee payment: 20

Ref country code: SE

Payment date: 20120525

Year of fee payment: 20

Ref country code: FR

Payment date: 20120705

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120526

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20120612

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69305515

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20130625

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20130624

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 EXPIRATION OF PROTECTION

Effective date: 20130624

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130626

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20140828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130626