EP2306085A1 - Burner with pressurized air and liquid fuel with modulation of the comburent / fuel ratio - Google Patents

Burner with pressurized air and liquid fuel with modulation of the comburent / fuel ratio Download PDF

Info

Publication number
EP2306085A1
EP2306085A1 EP10183334A EP10183334A EP2306085A1 EP 2306085 A1 EP2306085 A1 EP 2306085A1 EP 10183334 A EP10183334 A EP 10183334A EP 10183334 A EP10183334 A EP 10183334A EP 2306085 A1 EP2306085 A1 EP 2306085A1
Authority
EP
European Patent Office
Prior art keywords
pump
burner
fuel
pressure
turbine
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.)
Granted
Application number
EP10183334A
Other languages
German (de)
French (fr)
Other versions
EP2306085B1 (en
Inventor
Philippe Weitz
Olivier Beaugeois
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.)
Spm Innovation
Original Assignee
SPM
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 SPM filed Critical SPM
Publication of EP2306085A1 publication Critical patent/EP2306085A1/en
Application granted granted Critical
Publication of EP2306085B1 publication Critical patent/EP2306085B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/001—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space spraying nozzle combined with forced draft fan in one unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/30—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen

Definitions

  • the present invention relates to a blown-air burner fed with a liquid fuel, in particular fuel oil, more particularly intended for an application in domestic or industrial heating.
  • a burner is called to perform the mixing of an oxidizer, in this case air, and a fuel, to obtain combustion.
  • an oxidizer in this case air
  • a fuel to obtain combustion.
  • the oil burners comprise a turbine that draws outside air or combustion air to inject it into a circuit and on the other hand means to supply the liquid fuel supply, that is to say in fuel.
  • This fuel is fed by a pump which can be set to maintain a certain supply pressure to ensure the spraying of the fuel.
  • the fuel supply is controlled by one or more solenoid valves.
  • the turbine which supplies the oxidant is actuated by a motor with a constant rotation speed of 2800 revolutions / minute and the air flow is regulated by a shutter which creates a pressure drop in the aeraulic circuit.
  • the pump that supplies the pressurized fuel oil is also driven by a motor that rotates at a constant speed of 2800 rpm, which may be the same as the previous one.
  • Mechanical control means such as valves and pressure regulators, make it possible to adjust the flow rate.
  • the document DE 196 52 205 relates to a single-shaft burner driving both a pump and a turbine, from a constant rotational speed of the motor which is predetermined and fixed at the laying, and under variable air pressure.
  • the present invention proposes to remedy the drawbacks mentioned above by proposing a burner in which the fuel supply pump and the turbine comprise a common drive, coupled to means for modulating the supply of air and fuel oil. .
  • the invention is characterized in that the pump and the turbine are mounted on the same motor shaft, the oil pressure delivered being measured in real time and adjusted if necessary.
  • An associated electronic control then makes it possible to modulate the speed of rotation of the engine, and therefore of the turbine, and to adapt the fuel / oxidant ratio as a function of the measured pressure information.
  • the figure 1 represents the burner according to the invention without showing its implantation environment, which may vary.
  • the burner consists of a burner plate (1) which is connected to a fuel supply circuit via a pipe (2) provided with a solenoid valve (4) connected to a pump (5) which provides fuel oil under pressure.
  • the pump (5) is actuated by a variable speed motor (6), which also controls the air supply means.
  • These means consist of a turbine (7) which is disposed opposite the pump (5) and which is placed inside a volute (3).
  • the pump (5) and the turbine (7) have a common drive.
  • the mechanical connection which results from a common drive makes it possible to ensure a constant ratio between the oil pressure and the air flow, and without it being necessary later to use mechanical correction means.
  • the pump (5) and the turbine (7) are both mounted on the motor shaft (8) of the speed variation motor (6).
  • the shaft (8) therefore drives both the pump (5) which feeds the fuel burner and the turbine (7) which provides the air flow required for combustion.
  • the rotational speed of a turbine engine of a burner of this type is of the order of 2800 revolutions / minute.
  • a drop in engine speed causes a decrease in the oil pressure delivered by the pump.
  • This pressure variation is neither constant nor proportional to the loss of engine speed, and negatively influences the air / fuel ratio, resulting in poor combustion.
  • the solution implemented by the invention is to vary the fuel pressure, that is to say the fuel flow, regardless of the speed of rotation of the engine, so the turbine, c that is to say the flow rate oxidizer, while using a common mechanical drive, which allows to change the air flow without changing the oil pressure.
  • the pump (5) and the variable speed motor (6) are associated with means for modulating the pressure, designed to maintain the pump speed from a certain threshold of motor rotation speed. This predefined threshold of triggering makes it possible to ensure fuel supply in a stable manner.
  • the servocontrol of the oxidant is effected according to the information of the oil pressure and / or of the oxygen value obtained via the modulation means which comprise a measuring device and an associated electronics (10).
  • the measuring device of the modulation means consists of at least one pressure sensor (9) placed at the outlet of the pump (5).
  • the oil pressure delivered by the pump (5) can be readjusted if necessary, according to the information measured and supplied by the sensor (9), which will, if necessary, induce a corresponding variation in the speed of rotation of the motor, therefore the air flow, to optimize combustion.
  • the measuring device of the modulation means consists of at least one oxygen sensor (11) disposed in the combustion chamber, and controlling the fuel pressure and the flow rate. air as a function of the measured 0 2 content.
  • the measuring device of the modulation means combines at least one pressure sensor (9) and at least one oxygen sensor (11).
  • the electronic unit (10) associated with the measuring device indicates in real time and at any time the fuel consumption, and thus makes it possible to control the state of the combustion. We can thus anticipate the maintenance of the burner, and take the necessary security measures in case of bad combustion.
  • the figure 2 shows in the form of a diagram the schematic diagram of the burner according to the present invention, including the exchange of information between the various components of the burner to achieve the object of the invention.
  • the modularity of the air / fuel parameters independently of one another makes it possible to optimize boiler efficiency and combustion hygiene.
  • the air / oil control and the use of oil pressure sensors and / or oxygen sensors allow to modify either the oil pressure, the speed of the turbine or both to compensate for the variations of the air flow rate. for example, in the event of a change in climatic conditions, or variations in the oil flow, for example when the nozzle is dirty.
  • the modulation makes it possible to carry out longer operating cycles (stabilized phase) and thus to avoid many start-up phases (transient phase), which has the advantage of eliminating the losses of output during the phases of meadow. -ventilation, and to avoid electromagnetic disturbances during burner arcing phases.
  • This reduction of the starting phases also makes it possible to reduce the wear of the mechanical parts and thus to increase the service life of the components, to reduce the unburnt and thus to ensure a cleaner combustion and more respectful of the environment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

The burner has a burner plate (1) connected to a fuel oil supply circuit by a conduit (2) having an electromagnetic valve (4) connected to a pump (5) that supplies pressurized fuel oil, by a speed control motor (6) and a turbine (7). The turbine and the pump define a common drive, and the pump and the motor are associated with modulation units having a measurement device and an electronic unit. The modulation units adjust pressure of the fuel oil independent of the rotational speed of the motor to maintain speed of the pump from a predefined threshold value of the speed of the motor.

Description

La présente invention concerne un brûleur à air soufflé alimenté par un combustible liquide, notamment du fioul, plus particulièrement destiné à une application en matière de chauffage domestique ou industriel.The present invention relates to a blown-air burner fed with a liquid fuel, in particular fuel oil, more particularly intended for an application in domestic or industrial heating.

Un brûleur est appelé à réaliser le mélange d'un comburant, en l'occurrence de l'air, et d'un carburant, pour obtenir la combustion.A burner is called to perform the mixing of an oxidizer, in this case air, and a fuel, to obtain combustion.

De manière classique, les brûleurs fioul comportent une turbine qui aspire de l'air extérieur ou comburant pour l'injecter dans un circuit et d'autre part des moyens pour fournir l'alimentation en combustible liquide, c'est-à-dire en carburant.In a conventional manner, the oil burners comprise a turbine that draws outside air or combustion air to inject it into a circuit and on the other hand means to supply the liquid fuel supply, that is to say in fuel.

Ce combustible est alimenté par une pompe qui peut être réglée pour maintenir une certaine pression d'alimentation pour assurer la pulvérisation du combustible. L'alimentation en fioul est contrôlée par une ou plusieurs électrovannes.This fuel is fed by a pump which can be set to maintain a certain supply pressure to ensure the spraying of the fuel. The fuel supply is controlled by one or more solenoid valves.

Pour obtenir une combustion satisfaisante, il est donc nécessaire d'ajuster au mieux, puis de conserver, le rapport entre le débit d'air alimenté par la turbine (comburant) et la pression du fioul fourni par la pompe (carburant).To obtain a satisfactory combustion, it is therefore necessary to best adjust, then maintain, the ratio between the air flow supplied by the turbine (oxidizer) and the pressure of the fuel supplied by the pump (fuel).

Dans les brûleurs de type connu, la turbine qui fournit le comburant est actionnée par un moteur à vitesse de rotation constante de 2800 tours/minute et le débit d'air est réglé par un volet qui crée une perte de charge dans le circuit aéraulique.In burners of known type, the turbine which supplies the oxidant is actuated by a motor with a constant rotation speed of 2800 revolutions / minute and the air flow is regulated by a shutter which creates a pressure drop in the aeraulic circuit.

La pompe qui assure l'alimentation en fioul sous pression est également entraînée par un moteur qui tourne à une vitesse constante de 2800 tours/minute, qui peut être le même que le précédent. Des moyens de régulation mécaniques, tels que des vannes et régulateurs de pression, permettent d'ajuster le débit.The pump that supplies the pressurized fuel oil is also driven by a motor that rotates at a constant speed of 2800 rpm, which may be the same as the previous one. Mechanical control means, such as valves and pressure regulators, make it possible to adjust the flow rate.

Jusqu'à présent, le ratio entre la pression de fioul et le débit d'air était ajusté au moment de l'installation du brûleur, donnant ainsi à l'installation de chauffage une puissance fixe, donc non modulable. A l'usage, des problèmes de combustion pouvaient survenir, par exemple à la suite de pertes de charge résultant d'une variation de régime de la turbine, d'une chute de la pression délivrée par la pompe, d'un encrassement de la chaudière ou de la variation des conditions atmosphériques.Until now, the ratio between the oil pressure and the air flow was adjusted at the time of installation of the burner, thus giving the heating plant a fixed power, and therefore not adjustable. In use, combustion problems could arise, for example as a result of pressure losses resulting from a variation in the speed of the turbine, a drop in the pressure delivered by the pump, a fouling of the boiler or the variation of atmospheric conditions.

Le dérèglement du rapport air/fioul en cours de fonctionnement a pour conséquence une instabilité de la combustion, et des effets secondaires non négligeables en matière de bruit, de consommation, de rendement et d'encrassement.The disruption of the air / fuel ratio during operation results in instability of combustion, and significant side effects in terms of noise, consumption, efficiency and fouling.

Pour maintenir constant le rapport entre le débit d'air et la pression en combustible tout en faisant varier la puissance du brûleur, diverses solutions ont été proposées. Certaines solutions sont purement mécaniques. Il existe ainsi des dispositifs qui permettent d'augmenter ou de réduire la section des circuits d'alimentation en comburant et en carburant au moyen de bagues ou de vannes, comme par exemple dans le document FR 2 722 705 . Ces dispositifs ne sont pas pleinement satisfaisants car ils ne permettent pas une modulation immédiate des paramètres en fonction des besoins et ils sont relativement encombrants et onéreux.To maintain constant the ratio between the air flow rate and the fuel pressure while varying the power of the burner, various solutions have been proposed. Some solutions are purely mechanical. There are thus devices which make it possible to increase or reduce the section of the fuel and fuel supply circuits by means of rings or valves, as for example in the document FR 2,722,705 . These devices are not fully satisfactory because they do not allow immediate modulation of the parameters as needed and they are relatively bulky and expensive.

Il existe également des dispositifs dans lesquels la modulation est obtenue au moyen de capteurs contrôlant une ou plusieurs valves, la mesure d'une variation dans la pression du fioul induisant alors un ajustement par les valves du débit d'air fourni. Un exemple de ce type est décrit dans le document JP 419 86 14 . Cette modalité n'est pas pleinement satisfaisante, dans la mesure où elle consiste en fait à ajuster l'air apportée par la turbine en cas de variation de la pression de fioul mesurée par le capteur présent dans le système, ce qui suppose donc que soient prédéfinies et préréglées des valeurs de pression qui sont considérées comme optimales en vue de la combustion recherchée. Le carburant et le comburant ne sont pas asservis, il n'est donc pas possible de moduler l'air et le fioul indépendamment l'un de l'autre.There are also devices in which the modulation is obtained by means of sensors controlling one or more valves, the measurement of a variation in the pressure of the fuel then inducing an adjustment by the valves of the supplied air flow. An example of this type is described in the document JP 419 86 14 . This modality is not entirely satisfactory, since it consists in fact in adjusting the air supplied by the turbine in case of variation of the oil pressure measured by the sensor present in the system, which therefore presupposes that predefined and preset pressure values that are considered optimal for the desired combustion. The fuel and the oxidant are not enslaved, so it is not possible to modulate the air and fuel oil independently of one another.

Le document US 4 613 072 décrit un brûleur à vaporisation comportant un arbre unique sur lequel sont montées une pompe assurant l'alimentation en fioul et une turbine assurant le débit en air. Ce brûleur met en oeuvre uniquement une régulation en amont du débit en carburant et fonctionne sous une pression nulle, et n'est pas associé à des moyens permettant de réguler la pression du fioul alimenté, à l'inverse des brûleurs à pulvérisation.The document US 4,613,072 discloses a steam burner having a single shaft on which are mounted a pump for supplying fuel oil and a turbine for the flow of air. This burner uses only regulation upstream of the fuel flow and operates under zero pressure, and is not associated with means for regulating the pressure of fuel oil, unlike spray burners.

Le document DE 196 52 205 concerne un brûleur à arbre unique entraînant à la fois une pompe et une turbine, à partir d'une vitesse de rotation constante du moteur qui est prédéterminée et figée à la pose, et sous pression d'air variable.The document DE 196 52 205 relates to a single-shaft burner driving both a pump and a turbine, from a constant rotational speed of the motor which is predetermined and fixed at the laying, and under variable air pressure.

La présente invention se propose de remédier aux inconvénients mentionnés ci-dessus, en proposant un brûleur dans lequel la pompe d'alimentation en fioul et la turbine comportent un entraînement commun, couplé à des moyens de modulation de l'alimentation en air et en fioul.The present invention proposes to remedy the drawbacks mentioned above by proposing a burner in which the fuel supply pump and the turbine comprise a common drive, coupled to means for modulating the supply of air and fuel oil. .

Plus particulièrement, l'invention est caractérisée en ce que la pompe et la turbine sont montées sur le même arbre moteur, la pression fioul délivrée étant mesurée en temps réel et au besoin ajustée. Une commande électronique associée permet ensuite de moduler la vitesse de rotation du moteur, donc de la turbine, et d'adapter le ratio carburant / comburant en fonction de l'information de pression mesurée.More particularly, the invention is characterized in that the pump and the turbine are mounted on the same motor shaft, the oil pressure delivered being measured in real time and adjusted if necessary. An associated electronic control then makes it possible to modulate the speed of rotation of the engine, and therefore of the turbine, and to adapt the fuel / oxidant ratio as a function of the measured pressure information.

L'invention sera mieux comprise au travers de la description donnée ci-après d'un mode de mise en oeuvre, exposé à titre d'exemple non limitatif, et en référence aux figures annexées dans lesquelles :

  • la figure 1 est un schéma d'ensemble d'un brûleur selon l'invention, et
  • la figure 2 est un schéma de principe du brûleur selon la présente invention.
The invention will be better understood through the description given below of an embodiment, given by way of nonlimiting example, and with reference to the appended figures in which:
  • the figure 1 is an overall diagram of a burner according to the invention, and
  • the figure 2 is a schematic diagram of the burner according to the present invention.

La figure 1 représente le brûleur selon l'invention, sans que ne soit représenté son environnement d'implantation, qui peut varier.The figure 1 represents the burner according to the invention without showing its implantation environment, which may vary.

Le brûleur se compose d'une platine de brûleur (1) qui est reliée à un circuit d'alimentation en carburant par l'intermédiaire d'un conduit (2) muni d'une électrovanne (4) reliée à une pompe (5) qui assure l'alimentation en fioul sous pression. La pompe (5) est actionnée par un moteur à variation de vitesse (6), lequel contrôle également les moyens d'alimentation en air. Ces moyens sont constitués par une turbine (7) qui est disposée à l'opposé de la pompe (5) et qui est placée à l'intérieur d'une volute (3).The burner consists of a burner plate (1) which is connected to a fuel supply circuit via a pipe (2) provided with a solenoid valve (4) connected to a pump (5) which provides fuel oil under pressure. The pump (5) is actuated by a variable speed motor (6), which also controls the air supply means. These means consist of a turbine (7) which is disposed opposite the pump (5) and which is placed inside a volute (3).

La pompe (5) et la turbine (7) ont un entraînement commun. La liaison mécanique qui résulte d'un entraînement commun permet d'assurer un rapport constant entre la pression en fioul et le débit d'air, et sans qu'il soit nécessaire ultérieurement de mettre en oeuvre des moyens de correction mécaniques. Dans l'exemple de mise en oeuvre représenté, la pompe (5) et la turbine (7) sont montées toutes les deux sur l'arbre moteur (8) du moteur à variation de vitesse (6). L'arbre (8) entraîne donc à la fois la pompe (5) qui alimente le brûleur en carburant et la turbine (7) qui fournit le débit d'air nécessaire à la combustion.The pump (5) and the turbine (7) have a common drive. The mechanical connection which results from a common drive makes it possible to ensure a constant ratio between the oil pressure and the air flow, and without it being necessary later to use mechanical correction means. In the embodiment shown, the pump (5) and the turbine (7) are both mounted on the motor shaft (8) of the speed variation motor (6). The shaft (8) therefore drives both the pump (5) which feeds the fuel burner and the turbine (7) which provides the air flow required for combustion.

Comme indiqué plus haut, la vitesse de rotation d'un moteur de turbine d'un brûleur de ce type est de l'ordre de 2800 tours/minutes. Une chute de la vitesse du moteur provoque une diminution de la pression en fioul délivré par la pompe. Cette variation de la pression n'est ni constante, ni proportionnelle à la perte de vitesse du moteur, et influence négativement le ratio air/fioul, avec pour conséquence une mauvaise combustion.As indicated above, the rotational speed of a turbine engine of a burner of this type is of the order of 2800 revolutions / minute. A drop in engine speed causes a decrease in the oil pressure delivered by the pump. This pressure variation is neither constant nor proportional to the loss of engine speed, and negatively influences the air / fuel ratio, resulting in poor combustion.

Pour remédier à ce problème, la solution mise en oeuvre par l'invention consiste à faire varier la pression fioul, c'est-à-dire le débit en carburant, indépendamment de la vitesse de rotation du moteur, donc de la turbine, c'est-à-dire le débit en comburant, tout en utilisant un entraînement mécanique commun, ce qui permet donc de modifier le débit d'air sans modifier la pression fioul.To remedy this problem, the solution implemented by the invention is to vary the fuel pressure, that is to say the fuel flow, regardless of the speed of rotation of the engine, so the turbine, c that is to say the flow rate oxidizer, while using a common mechanical drive, which allows to change the air flow without changing the oil pressure.

Dans le brûleur selon l'invention, la pompe (5) et le moteur à variation de vitesse (6) sont associés à des moyens de modulation de la pression, prévus pour maintenir le régime de la pompe à partir d'un certain seuil de vitesse de rotation du moteur. Ce seuil prédéfini de déclenchement permet d'assurer l'alimentation en fioul de manière stable.In the burner according to the invention, the pump (5) and the variable speed motor (6) are associated with means for modulating the pressure, designed to maintain the pump speed from a certain threshold of motor rotation speed. This predefined threshold of triggering makes it possible to ensure fuel supply in a stable manner.

L'asservissement du comburant s'effectue en fonction de l'information de la pression fioul et/ou de la valeur d'oxygène obtenue par l'intermédiaire des moyens de modulation qui comprennent un dispositif de mesure et une électronique associée (10).The servocontrol of the oxidant is effected according to the information of the oil pressure and / or of the oxygen value obtained via the modulation means which comprise a measuring device and an associated electronics (10).

Selon une première variante de mise en oeuvre, le dispositif de mesure des moyens de modulation est constitué d'au moins un capteur de pression (9) placé en sortie de la pompe (5). La pression en fioul délivrée par la pompe (5) peut être réajustée si nécessaire, en fonction de l'information mesurée et fournie par le capteur (9), ce qui induira le cas échéant une variation correspondante de la vitesse de rotation du moteur, donc du débit d'air, afin d'optimiser la combustion.According to a first variant embodiment, the measuring device of the modulation means consists of at least one pressure sensor (9) placed at the outlet of the pump (5). The oil pressure delivered by the pump (5) can be readjusted if necessary, according to the information measured and supplied by the sensor (9), which will, if necessary, induce a corresponding variation in the speed of rotation of the motor, therefore the air flow, to optimize combustion.

Selon une deuxième variante de mise en oeuvre de l'invention, le dispositif de mesure des moyens de modulation est constitué d'au moins une sonde à oxygène (11) disposée dans la chambre de combustion, et pilotant la pression fioul et le débit d'air en fonction de la teneur en 02 mesurée.According to a second alternative embodiment of the invention, the measuring device of the modulation means consists of at least one oxygen sensor (11) disposed in the combustion chamber, and controlling the fuel pressure and the flow rate. air as a function of the measured 0 2 content.

Selon une troisième forme de réalisation, le dispositif de mesure des moyens de modulation combine au moins un capteur de pression (9) et au moins une sonde à oxygène (11).According to a third embodiment, the measuring device of the modulation means combines at least one pressure sensor (9) and at least one oxygen sensor (11).

Le boîtier électronique (10) associé au dispositif de mesure indique en temps réel et à tout instant la consommation en carburant, et permet donc de contrôler l'état de la combustion. On peut ainsi anticiper l'entretien du brûleur, et prendre les mesures de sécurisation nécessaires en cas de mauvaise combustion.The electronic unit (10) associated with the measuring device indicates in real time and at any time the fuel consumption, and thus makes it possible to control the state of the combustion. We can thus anticipate the maintenance of the burner, and take the necessary security measures in case of bad combustion.

La figure 2 montre sous la forme d'un diagramme le schéma de principe du brûleur selon la présente invention, avec notamment les échanges d'informations entre les différents composants du brûleur pour réaliser l'objet de l'invention.The figure 2 shows in the form of a diagram the schematic diagram of the burner according to the present invention, including the exchange of information between the various components of the burner to achieve the object of the invention.

Les avantages du brûleur selon l'invention sont multiples.The advantages of the burner according to the invention are multiple.

En premier lieu, la modularité des paramètres air / fioul indépendamment l'un de l'autre permet d'optimiser le rendement de la chaudière et l'hygiène de combustion. L'asservissement air / fioul et l'utilisation de capteurs de pression fioul et/ou de sondes à oxygène, permettent de modifier soit la pression fioul, soit la vitesse de la turbine ou les deux afin de compenser les variations du débit d'air, par exemple en cas de changement des conditions climatiques, ou les variations du débit fioul, par exemple en cas gicleur encrassé.First of all, the modularity of the air / fuel parameters independently of one another makes it possible to optimize boiler efficiency and combustion hygiene. The air / oil control and the use of oil pressure sensors and / or oxygen sensors, allow to modify either the oil pressure, the speed of the turbine or both to compensate for the variations of the air flow rate. for example, in the event of a change in climatic conditions, or variations in the oil flow, for example when the nozzle is dirty.

Le fait qu'un arbre unique entraîne à la fois la turbine et la pompe améliore la performance acoustique par une diminution du volume sonore lors des phases de mise en marche du brûleur et de fonctionnement ainsi qu'une diminution de la consommation électrique des auxiliaires, puisqu'on utilise qu'un seul moteur électrique.The fact that a single shaft drives both the turbine and the pump improves the acoustic performance by reducing the sound volume during the burner start-up and operating phases as well as a reduction in the electrical consumption of the auxiliaries, since only one electric motor is used.

Par ailleurs, la modulation permet de réaliser des cycles de fonctionnement plus long (phase stabilisée) et ainsi d'éviter de nombreuses phases de démarrage (phase transitoire), ce qui à l'avantage de supprimer les pertes de rendement lors des phases de pré-ventilation, et d'éviter les perturbations électromagnétiques lors des phases d'arquage du brûleur.Furthermore, the modulation makes it possible to carry out longer operating cycles (stabilized phase) and thus to avoid many start-up phases (transient phase), which has the advantage of eliminating the losses of output during the phases of meadow. -ventilation, and to avoid electromagnetic disturbances during burner arcing phases.

Cette diminution des phases de démarrage permet aussi de diminuer l'usure des pièces mécaniques et ainsi d'augmenter la durée de vie des composants, de diminuer les imbrûlés et donc d'assurer une combustion plus propre et plus respectueuse de l'environnement.This reduction of the starting phases also makes it possible to reduce the wear of the mechanical parts and thus to increase the service life of the components, to reduce the unburnt and thus to ensure a cleaner combustion and more respectful of the environment.

Enfin, cette innovation peut être installée sur des chaudières déjà existantes, là où l'encombrement le permet.Finally, this innovation can be installed on existing boilers, where congestion allows.

Claims (5)

Brûleur à air soufflé alimenté par un combustible liquide, du type comportant une platine de brûleur (1) reliée à un circuit d'alimentation en fioul par l'intermédiaire d'un conduit (2) muni d'une électrovanne (4) reliée à une pompe (5) assurant l'alimentation en fioul sous pression, au moyen d'un moteur à variation de vitesse (6) et d'une turbine (7) assurant le débit en air, caractérisé en ce que - la pompe (5) et la turbine (7) ont un entraînement commun, et - la pompe (5) et le moteur à variation de vitesse (6) sont associés à des moyens de modulation comprenant un dispositif de mesure et une électronique associée (10), lesdits moyens de modulation permettant d'ajuster la pression en fioul indépendamment de la vitesse de rotation du moteur pour maintenir le régime de ladite pompe à partir d'une valeur de seuil prédéfinie de la vitesse de rotation dudit moteur. Blown-air burner supplied with a liquid fuel, of the type comprising a burner plate (1) connected to a fuel supply circuit via a conduit (2) provided with a solenoid valve (4) connected to a pump (5) supplying fuel oil under pressure, by means of a speed variation motor (6) and a turbine (7) providing the air flow, characterized in that the pump (5) and the turbine (7) have a common drive, and the pump (5) and the speed variation motor (6) are associated with modulation means comprising a measuring device and associated electronics (10), said modulation means making it possible to adjust the fuel pressure independently of the rotational speed of the engine for maintaining the speed of said pump from a predefined threshold value of the rotational speed of said engine. Brûleur suivant la revendication 1, caractérisée en ce que l'entraînement commun de la pompe (5) et de la turbine (7) est réalisé par l'arbre (8) du moteur à variation de vitesse (6).Burner according to Claim 1, characterized in that the common drive of the pump (5) and the turbine (7) is provided by the shaft (8) of the speed variation motor (6). Brûleur suivant la revendication 1 ou la revendication 2, caractérisée en ce que le dispositif de mesure des moyens de modulation de la pression de est constitué d'au moins un capteur de pression (9) placé en sortie de la pompe (5).Burner according to Claim 1 or Claim 2, characterized in that the device for measuring the pressure modulation means consists of at least one pressure sensor (9) placed at the outlet of the pump (5). Brûleur suivant la revendication 1 ou la revendication 2, caractérisée en ce que le dispositif de mesure des moyens de modulation de la pression est constitué d'au moins une sonde à oxygène (11) disposée dans la chambre de combustion.Burner according to Claim 1 or Claim 2, characterized in that the device for measuring the pressure modulation means consists of at least one oxygen sensor (11) arranged in the combustion chamber. Brûleur suivant la revendication 1 ou la revendication 2, caractérisée en ce que le dispositif de mesure des moyens de modulation combine au moins un capteur de pression (9) et au moins une sonde à oxygène (11).Burner according to Claim 1 or Claim 2, characterized in that the measuring device of the modulation means combines at least one pressure sensor (9) and at least one oxygen sensor (11).
EP10183334.1A 2009-10-02 2010-09-30 Burner with pressurized air and liquid fuel with modulation of the comburent / fuel ratio Active EP2306085B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0904700A FR2950954B1 (en) 2009-10-02 2009-10-02 AIR BURNER AND LIQUID FUEL WITH COMBURANT / FUEL RATIO MODULATION

Publications (2)

Publication Number Publication Date
EP2306085A1 true EP2306085A1 (en) 2011-04-06
EP2306085B1 EP2306085B1 (en) 2018-11-14

Family

ID=42154333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10183334.1A Active EP2306085B1 (en) 2009-10-02 2010-09-30 Burner with pressurized air and liquid fuel with modulation of the comburent / fuel ratio

Country Status (3)

Country Link
EP (1) EP2306085B1 (en)
ES (1) ES2709695T3 (en)
FR (1) FR2950954B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2014167737A1 (en) * 2013-04-09 2017-02-16 日本オイルポンプ株式会社 burner

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464697A (en) * 1948-02-13 1949-03-15 Gilbert & Barker Mfg Co Dual oil burner with common air and oil control
US2491201A (en) * 1948-08-12 1949-12-13 Gilbert & Barker Mfg Co Dual firing rate oil burner of the pressure atomizing type
CH265658A (en) * 1947-09-13 1949-12-15 Looser & Cie E Device for creating a variable flame output of oil burners, in particular industrial and central heating oil burners, with the amount of air that changes automatically with the amount of fuel.
US4613072A (en) 1984-07-31 1986-09-23 Mikuni Kogyo Kabushiki Kaisha Apparatus for heating fluid by burning liquid fuel
US4737101A (en) * 1984-03-08 1988-04-12 Davair Heating Limited Oil burner
DE3818265A1 (en) * 1988-05-28 1989-11-30 Wolfgang Weinmann Controller for a heating system
JPH02309115A (en) * 1989-05-24 1990-12-25 Tokyo Gas Co Ltd Mechanism and device for supplying fuel gas and air for combustion in burner
GB2247743A (en) * 1990-09-07 1992-03-11 Beckett R W Corp Oil burner
FR2722705A1 (en) 1994-07-19 1996-01-26 Guillot Industrie Air/gas mixing device for feeding fuel/air mixtures to a burner
DE19652205A1 (en) 1996-12-16 1998-06-25 Wlm Feinwerktechnik Gmbh Combustion system for production of heat from liquid fuel e.g. in power plant
JP4198614B2 (en) 2004-02-18 2008-12-17 本田技研工業株式会社 Control device for internal combustion engine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH265658A (en) * 1947-09-13 1949-12-15 Looser & Cie E Device for creating a variable flame output of oil burners, in particular industrial and central heating oil burners, with the amount of air that changes automatically with the amount of fuel.
US2464697A (en) * 1948-02-13 1949-03-15 Gilbert & Barker Mfg Co Dual oil burner with common air and oil control
US2491201A (en) * 1948-08-12 1949-12-13 Gilbert & Barker Mfg Co Dual firing rate oil burner of the pressure atomizing type
US4737101A (en) * 1984-03-08 1988-04-12 Davair Heating Limited Oil burner
US4613072A (en) 1984-07-31 1986-09-23 Mikuni Kogyo Kabushiki Kaisha Apparatus for heating fluid by burning liquid fuel
DE3818265A1 (en) * 1988-05-28 1989-11-30 Wolfgang Weinmann Controller for a heating system
JPH02309115A (en) * 1989-05-24 1990-12-25 Tokyo Gas Co Ltd Mechanism and device for supplying fuel gas and air for combustion in burner
GB2247743A (en) * 1990-09-07 1992-03-11 Beckett R W Corp Oil burner
FR2722705A1 (en) 1994-07-19 1996-01-26 Guillot Industrie Air/gas mixing device for feeding fuel/air mixtures to a burner
DE19652205A1 (en) 1996-12-16 1998-06-25 Wlm Feinwerktechnik Gmbh Combustion system for production of heat from liquid fuel e.g. in power plant
JP4198614B2 (en) 2004-02-18 2008-12-17 本田技研工業株式会社 Control device for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2014167737A1 (en) * 2013-04-09 2017-02-16 日本オイルポンプ株式会社 burner

Also Published As

Publication number Publication date
ES2709695T3 (en) 2019-04-17
FR2950954A1 (en) 2011-04-08
EP2306085B1 (en) 2018-11-14
FR2950954B1 (en) 2012-09-28

Similar Documents

Publication Publication Date Title
CA2980798C (en) Cooling of a turbine engine oil circuit
EP1853805B1 (en) Aircraft engine fuel supply
FR3068114B1 (en) FLUID SUPPLY SYSTEM FOR TURBOMACHINE, COMPRISING A VARIABLE CYLINDER PUMP FOLLOWED BY A FLUID DOSER
EP1959113B1 (en) Method of taking auxiliary energy on an airplane jet engine and jet engine equipped to implement such a method
FR2882098A1 (en) FUEL FLOW REGULATION SUPPLYING A GAS TURBINE ENGINE
FR2919673A1 (en) ASSISTANCE AND RELIEF FOR THE ELECTRIC DRIVE OF A FUEL PUMP IN A TURBOMOTEUR
FR2541726A1 (en) METHOD FOR CONTROLLING THE IDLE SPEED OF AN INTERNAL COMBUSTION ENGINE PROVIDED FOR IMPROVING THE FUEL CONSUMPTION CHARACTERISTIC OF THE ENGINE
FR2930969A1 (en) PROPORTIONAL CONTROL OF FUEL PRESSURE AMPLITUDE IN GAS TURBINES
WO2020245516A1 (en) Method for regulating the acceleration of a turbomachine
WO2018138454A1 (en) System for supplying fuel to a turbomachine
EP3149312B1 (en) Device and method for pre-heating fuel in a turbomachine
FR2972488A1 (en) THERMAL ENGINE LUBRICATING SYSTEM COMPRISING A VARIABLE CYLINDER OIL PUMP
FR2970037A1 (en) ENERGY GENERATING APPARATUS
EP2306085B1 (en) Burner with pressurized air and liquid fuel with modulation of the comburent / fuel ratio
EP3994349B1 (en) Turbogenerator with simplified regulating system for an aircraft
WO2011154528A1 (en) Method and device for starting or stopping a gas turbine engine
EP1231368A1 (en) Two level pressurisation valve driven by a fuel metering device
FR3078551A1 (en) ANTICIPATING CONTROL OF A FUEL SUPPLY CIRCUIT OF A TURBOMACHINE
EP1072772B1 (en) Fuel cell power generating module comprising means for controlling the fuel cell pressure
EP3574200B1 (en) Circuit for supplying fuel to a turbomachine
EP3976950A1 (en) Fuel supply system of a turbomachine, with regulation of the fuel flow
FR3062420A1 (en) DEVICE FOR DRIVING A FUEL PUMP FOR TURBOMACHINE
FR2751030A1 (en) FUEL REGULATOR FOR TURBOJET ENGINE
FR3099207A1 (en) TURBOMACHINE FUEL SUPPLY SYSTEM
FR3099208A1 (en) FUEL SYSTEM FOR AN AIRCRAFT TURBOMACHINE

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

17P Request for examination filed

Effective date: 20111006

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SPM INNOVATION

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170629

RIC1 Information provided on ipc code assigned before grant

Ipc: F23D 11/00 20060101AFI20180612BHEP

Ipc: F23N 1/02 20060101ALI20180612BHEP

Ipc: F23N 5/00 20060101ALN20180612BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F23D 11/00 20060101AFI20180710BHEP

Ipc: F23N 5/00 20060101ALN20180710BHEP

Ipc: F23N 1/02 20060101ALI20180710BHEP

INTG Intention to grant announced

Effective date: 20180802

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

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 country code: AT

Ref legal event code: REF

Ref document number: 1065264

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602010055052

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181114

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1065264

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181114

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2709695

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20190417

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

Ref country code: LV

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: 20181114

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: 20181114

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: 20181114

Ref country code: NO

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: 20190214

Ref country code: LT

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: 20181114

Ref country code: IS

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: 20190314

Ref country code: BG

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: 20190214

Ref country code: HR

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: 20181114

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: 20181114

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: 20181114

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: 20190314

Ref country code: AL

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: 20181114

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20190400403

Country of ref document: GR

Effective date: 20190509

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

Ref country code: PL

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: 20181114

Ref country code: CZ

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: 20181114

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: 20181114

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602010055052

Country of ref document: DE

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

Ref country code: RO

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: 20181114

Ref country code: SK

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: 20181114

Ref country code: EE

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: 20181114

Ref country code: SM

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: 20181114

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: 20190815

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

Ref country code: SI

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: 20181114

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

Ref country code: TR

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: 20181114

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181114

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: 20190930

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

Ref country code: CY

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: 20181114

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100930

Ref country code: MT

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: 20181114

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

Ref country code: MK

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: 20181114

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

Ref country code: IE

Payment date: 20230907

Year of fee payment: 14

Ref country code: GB

Payment date: 20230907

Year of fee payment: 14

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

Ref country code: GR

Payment date: 20230908

Year of fee payment: 14

Ref country code: FR

Payment date: 20230930

Year of fee payment: 14

Ref country code: DE

Payment date: 20230908

Year of fee payment: 14

Ref country code: BE

Payment date: 20230908

Year of fee payment: 14

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

Ref country code: ES

Payment date: 20231019

Year of fee payment: 14

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

Ref country code: IT

Payment date: 20230929

Year of fee payment: 14

Ref country code: CH

Payment date: 20231001

Year of fee payment: 14