EP2085694B1 - Elektronisch gesteuerter Holzbrennofen und Regelungsverfahren dafür - Google Patents

Elektronisch gesteuerter Holzbrennofen und Regelungsverfahren dafür Download PDF

Info

Publication number
EP2085694B1
EP2085694B1 EP09151419.0A EP09151419A EP2085694B1 EP 2085694 B1 EP2085694 B1 EP 2085694B1 EP 09151419 A EP09151419 A EP 09151419A EP 2085694 B1 EP2085694 B1 EP 2085694B1
Authority
EP
European Patent Office
Prior art keywords
air
valve
combustion
primary
combustion chamber
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.)
Active
Application number
EP09151419.0A
Other languages
English (en)
French (fr)
Other versions
EP2085694A3 (de
EP2085694A2 (de
Inventor
Vagn Hvam Pedersen
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.)
IHS INNOVATION APS
Original Assignee
IHS Innovation APS
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 IHS Innovation APS filed Critical IHS Innovation APS
Publication of EP2085694A2 publication Critical patent/EP2085694A2/de
Publication of EP2085694A3 publication Critical patent/EP2085694A3/de
Application granted granted Critical
Publication of EP2085694B1 publication Critical patent/EP2085694B1/de
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
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • F23B80/04—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for guiding the flow of flue gases, e.g. baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00—Combustion methods not related to a particular type of apparatus
    • F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/02—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air above the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/002—Regulating air supply or draught using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/007—Regulating air supply or draught using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/06—Regulating air supply or draught by conjoint operation of two or more valves or dampers
    • F23N3/065—Regulating air supply or draught by conjoint operation of two or more valves or dampers using mechanical means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/02—Closed stoves
    • F24B1/028—Closed stoves with means for regulating combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/185—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion
    • F24B1/187—Condition responsive controls for regulating combustion 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B5/00—Combustion-air or flue-gas circulation in or around stoves or ranges
    • F24B5/02—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves
    • F24B5/021—Combustion-air or flue-gas circulation in or around stoves or ranges in or around stoves combustion-air circulation
    • F24B5/026—Supply of primary and secondary air for combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/13003—Energy recovery by thermoelectric elements, e.g. by Peltier/Seebeck effect, arranged in the combustion plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/02—Fail safe using electric energy accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2239/00—Fuels
    • F23N2239/02—Solid fuels

Definitions

  • the present invention relates to a method for controlling a woodburning stove and of the kind stated in the preamble of claim 1.
  • the invention furthermore concerns a electronic control for a woodburning stove and of the kind indicated in the preamble of claim 2.
  • the invention additionally concerns a woodburning stove of the kind indicated in the preamble of claim 6 with an electronic control according to the invention.
  • Modern woodburning stoves are often designed as a stove for firing with wood, coal, coke, briquettes or wood pellets as the stove includes mechanical control means for regulating supply of primary as well as secondary combustion air.
  • Primary combustion air is supplied through the grate, i.e. up through the fuel, while secondary combustion air is supplied directly to the combustion chamber of the stove in order to ensure combustion of the gasses developed in the combustion chamber.
  • DK 166 637 B1 discloses a woodburning stove of this type and where the control means include a thermal sensor disposed in the flue gas exhaust and controlled valve means connected therewith for controlling supply of primary and secondary combustion air to the combustion chamber.
  • the valve means are found at the back side of the stove in a separate wall part including valve openings that are connected with the ash chamber and an upper part of the combustion chamber and which are provided with the said sensor.
  • the valve means include damper plates that are adapted to be displaced relative to the valve openings and which also are control connected with operating arms arranged from operation from the front side of the stove, and valve plates adapted to be displaced in relation to the damper plates and which are mechanically control connected with the sensor.
  • the damper and valve plates are designed and mutually suspended in relation to the valve openings such that respective valve openings can be forcibly opened by forced control of the valve plates, and that the damper and valve plates for the secondary combustion air are designed and mutually suspended in relation to the valve opening such that it cannot be forcibly closed when the woodburning stove is hot, i.e. within the operating range of the sensor.
  • DK 1998 00198 U3 discloses a woodburning stove where the combustion with the intention of ensuring optimal environmental and economical combustion includes an electronic control of primary and secondary air supply.
  • the development concerns a woodburning stove where the door of the stove can be opened electronically and/or manually such that the woodburning stove can be used both as an open and as a closed fireplace.
  • This double function requires a separate regulation of the combustion air, why the opening/closing function interacts with the electronic control of the combustion air supply.
  • the purpose of the invention is to indicate a new and improved method for controlling a woodburning stove and an electronic control for a woodburning stove of the kind specified in the introduction, and which enables achieving a woodburning stove with a more correct combustion and at the same time a more environmentally optimal combustion such that the utilisation of the fuel of the stove is further optimised simultaneously.
  • the method according to the invention is characterised in that tertiary combustion air is supplied directly to the combustion chamber via a feed opening along a top side of the door, and that supply of primary, secondary and tertiary combustion air to the combustion chamber is controlled by the electronic control by means of separate control valves.
  • the invention also concerns an electronic control which is characterised in that the control is incorporated in a cabinet which is adapted to be disposed below the ash chamber and which includes a common air intake and one or more air valves with a damper plate, each drivingly connected with an electric motor arranged in the cabinet, the motor being control connected with the electronic control, the air valve or valves interacting with air ducts for supplying primary and secondary combustion air, the air ducts being disposed side by side at a rear side of the woodburning stove.
  • the electronic control according to the invention is suitably designed such that the cabinet includes three air valves, namely a first air valve interacting with a first air duct for supplying primary combustion air, a second air valve interacting with a second air duct for supplying secondary combustion air, and a third air valve interacting with a third air duct for supplying tertiary combustion air.
  • the control according to the invention may advantageously be designed such that the first air duct opens into the ash chamber above a possible ash pan, as primary combustion air is supplied to the combustion chamber through the grate bottom, and that the second air duct opens in the rear side of the combustion chamber spaced apart from the grate bottom, as secondary combustion air is supplied through a horizontal slotted opening at the transition to the inclining wall part of the combustion chamber.
  • the electronic control according to the invention is designed such that the third air duct opens into a horizontal slotted opening along the top side of a glass door at the front side of the combustion chamber, as tertiary combustion air, besides being mixed with rising gasses, is also used as scavenging air for keeping clean the inner side of the glass door.
  • the invention additionally concerns a woodburning stove including a combustion chamber which is downwards separated from an ash chamber by means of a grate bottom and having a walling at the rear and at both sides which upwards has an inclining forwards/upwards extending wall part, the combustion chamber upwards preferably via a reversing plate being connected with a chimney via a flue gas exhaust, the woodburning stove including an electronic control which includes a thermal sensor and a ⁇ -probe provided in the flue gas exhaust, the woodburning stove being characterised in that the control is incorporated in a cabinet which is adapted to be disposed below the ash chamber and which includes a common air intake and one or more air valves with a damper plate, each drivingly connected with an electric motor arranged in the cabinet, the motor being control connected with the electronic control, the air valve or valves interacting with air ducts for supplying primary and secondary combustion air, the air ducts being disposed side by side at a rear side of the woodburning stove.
  • the woodburning stove according to the invention is suitably designed such that the cabinet includes three air valves, namely a first air valve interacting with a first air duct for supplying primary combustion air, a second air valve interacting with a second air duct for supplying secondary combustion air, and a third air valve interacting with a third air duct for supplying tertiary combustion air.
  • the woodburning stove according to the invention is designed in a way known per se such that the first air duct opens into the ash chamber above a possible ash pan, as primary combustion air is supplied to the combustion chamber through the grate bottom, and that the second air duct opens in the rear side of the combustion chamber spaced apart from the grate bottom, as secondary combustion air is supplied through a horizontal slotted opening at the transition to the inclining wall part of the combustion chamber.
  • the third air duct opens into a horizontal slotted opening along the top side of a glass door at the front side of the combustion chamber, as tertiary combustion air, besides being mixed with rising gasses, is also used as scavenging air for keeping clean the inner side of the glass door.
  • the woodburning stove 2 shown in Fig. 1 is constructed of steel plate as a conventional convection oven with an external casing 4 and a combustion chamber 6 which is internally covered by a heat-resistant material 8 (walling), and which in a known way enclosed by a convection channel system 10, e.g. with inlet holes for cold air at the bottom of the casing 4 and with (not shown) discharge holes for heated air at the top of the casing 4.
  • a convection channel system 10 e.g. with inlet holes for cold air at the bottom of the casing 4 and with (not shown) discharge holes for heated air at the top of the casing 4.
  • the combustion chamber 6 is provided with a preferably circular grate bottom 12 which can be shaken or swung back and forth in a known way from the front side of the woodburning stove 2 by means of a (not shown) handle.
  • the front side of the combustion chamber 6 is provided with a stove door 14 with heat-resistant glass pane 16.
  • an ash compartment 18 under the grate bottom 12 there is provided an ash pan 20.
  • the ash compartment 18 is connected with a supply duct for primary combustion air 19 which via the ash compartment 18 is conducted up into the combustion chamber 6 through the grate bottom 12.
  • the combustion chamber 6 has an inclining, upwards/forwards extending wall part 22 which consists of ceramic material, and which at the rear and at each side is supported by the ceramic walling 8.
  • a reversing plate 24 is mounted behind the wall part 22 at an upper wall part 21 of the combustion chamber 6 such that the flue gas, cf. the arrow 23 from the combustion chamber 6, is forced downwards before it has access upwards to a flue gas exhaust 26 and chimney 28, respectively.
  • a horizontal, slotted feed opening 32 for secondary combustion air 33 which e.g. is supplied via a (not shown) vertical duct communicating downwards with a middle secondary regulating valve 34 in a common cabinet 36, which is located under the ash compartment 18 and which also contains a common electronic control 38.
  • a rear wall 5 of the combustion chamber 6 e.g. side by side, are arranged three vertical air ducts of which one middle air duct communicates downwards with the said middle regulating valve 34 regulating the supply of secondary combustion air via the feed opening 32, while a regulating valve 40 for primary combustion air 19 communicates with a rather short air duct that opens up at the back side of the ash compartment 18, i.e. providing for regulation of the supply of primary combustion air to the combustion chamber 6 up through the grate bottom 12.
  • a third regulating valve 42 communicates with a relatively long air duct running along the whole back side of the stove, and which at the top extends forward along the top side of the stove 2 to a horizontal slotted feed opening 44 along the top side of the door 14, through which tertiary combustion air 45 is supplied in such a way that the tertiary combustion air is used both as scavenging air for keeping clean the glass pane 16 and for being mixed with the flue gas at the top of the combustion air 6 with the intention of ensuring optimal combustion of all combustible gases before they reach the flue gas exhaust 26 via the reversing plate 24.
  • Supply of primary, secondary and tertiary combustion air 19, 33, 45 thus occurs via a common opening 46 at the back side of the woodburning stove at the bottom of the casing 4, from where all combustion air is introduced via a further common opening 48 at the bottom of the cabinet 36, after which supply of primary, secondary and tertiary combustion air 19, 33, 45 to respective air ducts takes place by means of the regulating valves 34, 40, 42 which via the electronic control 38 are controlled by each their electric motor, e.g. a step motor, 50, 52, 54.
  • supply of primary, secondary and tertiary combustion air 19, 33, 45 from respective regulating valves 34, 40, 42 alternatively may occur by means of flexible hoses of non-combustible material, the hoses being run from respective regulating valves 34, 40, 42 within the external casing 4 to respective feed openings for the combustion chamber 6.
  • the electronic control 38 includes a thermal sensor 47 and a ⁇ -probe 49 , both disposed in the flue gas exhaust 26 and connected with the electronic control 38.
  • the regulating valve 40 When firing a new portion of fuel, the regulating valve 40 is opened such that primary air 19 is supplied via the ash compartment 18 up through the grate bottom 16, while the secondary regulating valve 34 is closed.
  • the primary regulating valve 40 When reaching a temperature of the magnitude 1000° - 1200° and generation of a large amount of gas has occurred after some time, the primary regulating valve 40 is partially closed, while the secondary regulating valve 34 is partly opened and the tertiary regulating valve 42 is partly opened, controlled by the flue gas temperature (200°-350°) and the oxygen content in the flue gas which is detected by the ⁇ -probe 49.
  • the woodburning stove 2 according to the invention will preferably be designed with a firing indicator, which may consist of a light diode and/or an acoustic signal emitter which by signalling will remind about the fact that wood has to be fired now in order to maintain optimal combustion.
  • a firing indicator which may consist of a light diode and/or an acoustic signal emitter which by signalling will remind about the fact that wood has to be fired now in order to maintain optimal combustion.
  • the ⁇ -probe 49 continuously detects the oxygen content in the flue gas, why the automatic control can react rapidly if the oxygen content suddenly drops - e.g. in that the fuel blazes up - an optimal reaction by high temperature in the fire core (1200°) will be to open more for the regulating valve 34 secondary combustion air 33, while a corresponding reaction at lower temperature in the fire core will be to increase the supply of primary combustion air 19 via the regulating valve 40.
  • FIG. 4 illustrates the flue gas temperature viewed over five firings, each constituted by test firing with wood, each two kg.
  • FIG. 5 illustrates the amount of CO (the area under the curve) as CO also includes non-detectable particles.
  • the area under the curve in Fig. 5 represents, as mentioned, the actual amount of CO during the combusting; if the oxygen content detected by the ⁇ -probe 49 is incorporated in the curve, cf. Fig. 5 , the area under the curve will be reduced in general, i.e. the curve will approximately be displaced "in parallel" downwards.
  • Figs. 6-8 illustrate the valve opening in % for primary, secondary and tertiary combustion air, respectively.
  • Figs. 9-12 show a preferred embodiment of a valve cabinet 36 which is located under the ash compartment 18 ( Fig. 1 ), and which includes three regulating valves 34, 40, 42, where the regulating valve 40 regulates supply of primary combustion air 19, the regulating valve 34 regulates supply of secondary combustion air 33 and the regulating valve 42 regulates supply of tertiary combustion air 45 to respective feed openings 12, 32, 44 for the combustion chamber 6.
  • a front side 56 of the valve cabinet 36 is designed with a large number of supply openings 58 through which combustion air is generally introduced in the valve cabinet 36 which is usually provided with a not shown lower bottom plate.
  • the cavity 60 immediately within the supply openings 58 represents a relatively cold spot in the woodburning stove 2, why the electronic control 38 is located here, possibly fastened to the not shown bottom plate.
  • Fig. 13 shows a laboratory version of the regulating valves 34, 40, 42 with associated step motors 50, 52, 54 for primary, secondary and tertiary combustion air 19, 33, 45, respectively, which is supplied to the stove via flex hoses 62, 64, 66 with metal jacket.
  • the electronic control 38 enables achieving a rapid reaction by controlling the regulating valves 34, 40, 42 and good efficiency of the woodburning stove 2.
  • the woodburning stove 2 may include a number of signal diodes and/or a display showing the status of the most important control parameters, and which may be wall-mounted and interact wirelessly with the electronic control 38.
  • the electronic control 38 is battery-powered such that operation of the stove 2 is independent of the public network.
  • the battery may possibly be adapted to be recharged via a thermocouple connected to the stove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)

Claims (5)

  1. Verfahren zur Regelung eines Holzverbrennungsofens (2) des Typs, der eine Brennkammer (6) mit einer Glastür (14) aufweist, wobei die Brennkammer (6) an der Rückseite und an ihren beiden Seiten eine Wandung (5, 8, 21, 22, 30) aufweist und unten mittels eines Rostbodens (12) von einer Aschekammer (20) getrennt ist, und über einen Rauchgasabzug (26), in dem die Rauchgastemperatur liegt mittels eines thermischen Sensors (47) detektiert wird, mit einem Schornstein (28) verbunden ist, wobei durch das Verfahren Primärbrennluft (19) über die Aschekammer (20) nach oben durch den Rostboden (12) der Brennkammer (6) zugeführt wird, und Sekundärverbrennungsluft (33) der Verbrennungskammer (6) direkt zugeführt wird, wobei durch das Verfahren eine elektronische Regelung (38) zur Anwendung kommt, die mit dem Wärmesensor (47) und mit einer in dem Rauchgasabzug (26) vorgesehenen λ-Sonde (49) verbunden ist, und Tertiärverbrennungsluft (45) über eine Zuführöffnung (44) entlang einer Oberseite der Tür (14) direkt der Brennkammer (6) zugeführt wird, und die Zufuhr von Primär-, Sekundär, und Tertiärverbrennungsluft (19, 33, 45) zu der Verbrennungskammer (6) durch die elektronische Regelung (38) mittels getrennter Regelventile (34, 40, 42) geregelt wird, wobei das Verfahren die Schritte umfasst:
    - wenn ein neuer Teil des Brennstoffs verfeuert wird, wird ein Primärventil (40) geöffnet, so dass die Primärverbrennungsluft (19) über die Aschekammer (20) durch den Rostboden (12) nach oben geführt wird, während ein Sekundärventil (34) geschlossen ist,
    - wenn nach einiger Zeit eine Temperatur in dem Feuerkern eine Größenordnung von 1000-1200°C erreicht, wird das Primärventil (40) teilweise geschlossen, während das Sekundärventil (34) teilweise geöffnet ist und ein Tertiärventil (42) teilweise geöffnet ist, geregelt durch eine Rauchgastemperatur von 200°-350°C und durch den von der λ-Sonde (49) detektierten Sauerstoffgehalt im Rauchgas.
  2. Holzverbrennungsofen (2) mit einer Brennkammer (6), die unten mittels eines Rostbodens (12) von einer Aschekammer (20) getrennt ist und eine Wandung (5, 8, 21, 22, 30) an der Rückseite und an beiden Seiten aufweist, die oben einen schräg nach vorne und oben verlaufenden Wandteil (8) aufweist, wobei die Brennkammer (6) oben vorzugsweise über eine Umlenkplatte (24) über einen Rauchgasabzug (26) mit einem Schornstein (28) verbunden, wobei der Holzverbrennungsofen (2) eine elektronische Regelung (38) aufweist, die mit einem Wärmesensor (47) und einer in dem Rauchgasabzug (26) vorgesehenen λ-Sonde (49) verbunden ist, wobei die Regelung (38) in einem unterhalb der Aschekammer (20) angeordneten Kasten (36) eingebaut ist, der einen gemeinsamen Lufteinlass und eines oder mehrere Regulierventile (34, 40, 42) mit einer Dämpfungsplatte aufweist, die ansteuerungsmäßig jeweils mit einem Elektromotor (50, 52, 54) verbundenen sind, der in dem Kasten (36) angeordnet ist, wobei der Motor (50, 52, 54) zur Regelung mit der elektronischen Regelung (38) verbunden ist, wobei die Luftventile (34, 40, 42) mit Luftkanälen zum Zuführen von Primär-, Sekundär- und Tertiärverbrennungsluft (19, 33, 45) zusammenwirken, wobei die Luftkanäle Seite an Seite an einer Rückseite des Holzverbrennungsofens (2) angeordnet sind, und wobei die Regelung (38) konfiguriert ist, die Regulierventile (34, 40, 42) derart zu regeln, dass:
    - wenn ein neuer Teil des Brennstoffs verfeuert wird, ein Primärventil (40) geöffnet wird, so dass die Primärverbrennungsluft (19) über die Aschekammer (20) durch den Rostboden (12) nach oben geführt wird, während ein Sekundärventil (34) geschlossen ist,
    - wenn nach einiger Zeit eine Temperatur in dem Feuerkern eine Größenordnung von 1000-1200°C erreicht, das Primärventil (40) teilweise geschlossen wird, während das Sekundärventil (34) teilweise geöffnet ist und ein Tertiärventil (42) teilweise geöffnet ist, geregelt durch eine Rauchgastemperatur von 200°-350°C und durch den von der λ-Sonde (49) detektierten Sauerstoffgehalt im Rauchgas.
  3. Holzverbrennungsofen nach Anspruch 2, wobei der Kasten drei Luftventile aufweist, nämlich ein erstes Luftventil, das mit einem ersten Luftkanal zum Zuführen von Primärverbrennungsluft zusammenwirkt, ein zweites Luftventil, das mit einem zweiten Luftkanal zum Zuführen von Sekundärverbrennungsluft zusammenwirkt, und ein drittes Luftventil, das mit einem dritten Luftkanal zum Zuführen von tertiärer Verbrennungsluft zusammenwirkt.
  4. Holzverbrennungsofen nach Anspruch 2 und 3, wobei der erste Luftkanal oberhalb einer möglichen Aschelade in die Aschekammer mündet, während der Brennkammer durch den Rostboden primäre Verbrennungsluft zugeführt wird, und der zweite Luftkanal in die Rückseite der Brennkammer, die vom Rostboden beabstandet ist, mündet, während sekundäre Verbrennungsluft an dem Übergang zu dem geneigten Wandteil durch eine horizontale Schlitzöffnung der Brennkammer zugeführt wird.
  5. Holzverbrennungsofen nach Anspruch 2 und 3, wobei der dritte Luftkanal in eine horizontale Schlitzöffnung entlang der Oberseite einer Glastür an der Vorderseite der Brennkammer mündet, während Tertiärverbrennungsluft, abgesehen davon, dass sie mit aufsteigenden Gasen gemischt wird, auch als Spülluft verwendet wird, um die Innenseite der Glastür sauber zu halten.
EP09151419.0A 2008-01-30 2009-01-27 Elektronisch gesteuerter Holzbrennofen und Regelungsverfahren dafür Active EP2085694B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA200800114 2008-01-30

Publications (3)

Publication Number Publication Date
EP2085694A2 EP2085694A2 (de) 2009-08-05
EP2085694A3 EP2085694A3 (de) 2013-05-15
EP2085694B1 true EP2085694B1 (de) 2018-05-30

Family

ID=40535753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09151419.0A Active EP2085694B1 (de) 2008-01-30 2009-01-27 Elektronisch gesteuerter Holzbrennofen und Regelungsverfahren dafür

Country Status (2)

Country Link
EP (1) EP2085694B1 (de)
DK (1) DK2085694T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4215820A1 (de) * 2022-01-20 2023-07-26 Jide Heizvorrichtung mit sekundärluftzuführung

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK177394B1 (da) 2011-11-07 2013-03-18 Hwam As Fremgangsmåde til forbrænding af et brændsel i en brændeovn, en brændeovn med en styreenhed samt en luftregulator til en brændeovn
GB201209713D0 (en) * 2012-05-31 2012-07-18 Thurlow Alan Improvements to air flow control for stoves
CN103486570A (zh) * 2012-06-12 2014-01-01 中山市兴和生物能源科技有限公司 一种生物质燃烧机
CN103512025A (zh) * 2012-06-21 2014-01-15 中山市兴和生物能源科技有限公司 一种半气化生物质燃烧机
GB2503462B (en) * 2012-06-27 2016-10-12 Hunter Stoves Ltd Stove with additional air flow
FI127234B (fi) * 2012-10-09 2018-02-15 Jouko Kettunen Menetelmä ja laite kiinteiden polttoaineiden tulisijassa polttamisen tehostamiseksi
DE102013103205A1 (de) 2013-03-08 2014-09-11 Thomas Blank Heizgerät, Bevorratungseinsatz für ein Heizgerät und Betriebsverfahren für ein Heizgerät
BE1021949B1 (nl) * 2013-09-18 2016-01-28 Dovre N.V. Kachel
BE1022253B1 (nl) * 2014-01-22 2016-03-04 Ifire Bvba Inbouwhaard
FR3019272B1 (fr) * 2014-03-25 2019-07-12 Actinov Sas Circuit d'air carburant et d'evacuation des gaz brules pour poele a granules de bois, autonome a usage domestique
GB2530732A (en) * 2014-09-30 2016-04-06 Be Modern Ltd Solid fuel stove
JP6148282B2 (ja) * 2015-04-28 2017-06-14 寿正 金田 ストーブ
SI25142A (sl) 2016-02-23 2017-08-31 Atech Elektronika D.O.O. Naprava za regulacijo in optimizacijo izgorevanja pri kurilnih napravah na trda goriva
FR3050012B1 (fr) * 2016-04-06 2018-04-13 Speeta Poele a bois avec six etats de controle de combustion
PL234400B1 (pl) * 2017-12-06 2020-02-28 Strzelczyk Marian Eko Wery Zespół płyt dopalania spalin oraz kocioł centralnego ogrzewania z zespołem płyt dopalania spalin
CZ307859B6 (cs) * 2018-03-12 2019-07-03 Blaze Harmony S.R.O. Topidlo na pevná paliva s třípásmovým přívodem spalovacího vzduchu
TW202028658A (zh) * 2019-01-30 2020-08-01 愛烙達股份有限公司 具散熱效果之燃燒裝置
DE102019217537A1 (de) * 2019-11-13 2021-05-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur Regelung der Verbrennung in Feuerungsanlagen
IT202000003335A1 (it) * 2020-02-19 2021-08-19 Emma Savino Sistema di riscaldamento a flussi d’aria controllati
FR3122245B1 (fr) * 2021-04-21 2023-03-24 N2Air Procédé de réglage d’un poêle à granulés et installation correspondante
DE102021112506A1 (de) * 2021-05-12 2022-11-17 Ulrich Brunner Ofen- und Heiztechnik Gesellschaft für Guß- und Stahlkonstruktionen mbH Einzelfeuerstätte mit einem Brennraumboden

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK166637B1 (da) 1990-03-02 1993-06-21 Abc Pejseindustri A S Braendeovn
AT398483B (de) * 1992-12-22 1994-12-27 Pfisterer Kurt Vorrichtung zur regelung der verbrennungsluftzufuhr bei einem ofen
DK9800198U3 (da) 1998-05-28 1999-01-22 Hwam Heat Design As Brændeovn med elektronisk styring og automatisk lågeåbning
DE69910381T2 (de) * 1998-05-29 2004-06-24 Morso Jernstoberi A/S Ofen für feste brennstoffe
GB2389414B (en) * 2002-06-06 2005-09-28 A J Wells & Sons Stove
DE102006046599B4 (de) * 2006-09-30 2012-02-09 Hochschule Karlsruhe-Technik Und Wirtschaft Verfahren und Vorrichtung zur diskontinuierlichen Verbrennung von Brennstoffen
EP1918637A1 (de) * 2006-10-27 2008-05-07 Karl Stefan Riener Steuerung einer Biomassefeuerung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4215820A1 (de) * 2022-01-20 2023-07-26 Jide Heizvorrichtung mit sekundärluftzuführung
BE1030215B1 (fr) * 2022-01-20 2023-08-28 Jide Dispositif de chauffage avec alimentation en air secondaire

Also Published As

Publication number Publication date
EP2085694A3 (de) 2013-05-15
DK2085694T3 (en) 2018-09-03
EP2085694A2 (de) 2009-08-05

Similar Documents

Publication Publication Date Title
EP2085694B1 (de) Elektronisch gesteuerter Holzbrennofen und Regelungsverfahren dafür
US9170025B2 (en) Hybrid wood burning fireplace assembly
US4141336A (en) Fireplace stove
CA1094421A (en) Wood burning stove
AU2010226437B2 (en) Fireplace assembly with integrated burn control system
EP1821038A2 (de) Öfen
RU132530U1 (ru) Твердотопливный котел длительного горения
AU1233292A (en) A solid fuel heating stove
WO2000050817A1 (en) Fireplace insert
US6488024B2 (en) Wood heater
US6216684B1 (en) Wood heater
GB2324856A (en) Fuel burning stove
EP1582815B1 (de) Ofen für Brennstoffpellets oder für körnige festen Brennstoffe
JP2014115068A (ja) 屋内設置型ロケットストーブ
CA1167721A (en) Space heating stove
US4506653A (en) Combustion method and apparatus
WO2018004023A1 (ko) 외부 공기조절이 용이한 난로
KR102011676B1 (ko) 벽난로
KR102320351B1 (ko) 연탄 연료와 목재 연료의 결합형 고효율 난로
US20090223507A1 (en) Low-emission fireplace assembly
CN211781237U (zh) 高原班用新型取暖炉
CN211502881U (zh) 一种倾斜烟道的烟气可下行的柴草燃炉
KR20180001237A (ko) 보일러 일체형 하이브리드 난로
GB2481026A (en) Space heater with selective flow to divided cavity
CN201184615Y (zh) 微烟省柴灶

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: A2

Designated state(s): 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 TR

AX Request for extension of the european patent

Extension state: AL BA RS

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

Owner name: HWAM A/S

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): 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 TR

AX Request for extension of the european patent

Extension state: AL BA RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F23L 3/00 20060101ALI20130408BHEP

Ipc: F23B 80/04 20060101ALI20130408BHEP

Ipc: F24B 5/02 20060101ALI20130408BHEP

Ipc: F23L 9/02 20060101ALI20130408BHEP

Ipc: F23B 60/02 20060101AFI20130408BHEP

Ipc: F23N 5/00 20060101ALI20130408BHEP

17P Request for examination filed

Effective date: 20131115

RAX Requested extension states of the european patent have changed

Extension state: AL

Payment date: 20131115

Extension state: RS

Payment date: 20131115

Extension state: BA

Payment date: 20131115

RBV Designated contracting states (corrected)

Designated state(s): 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 TR

AKX Designation fees paid

Designated state(s): 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 TR

AXX Extension fees paid

Extension state: RS

Payment date: 20131115

Extension state: BA

Payment date: 20131115

Extension state: AL

Payment date: 20131115

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

Owner name: IHS INNOVATION APS

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602009052477

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F23B0060020000

Ipc: F23N0003000000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F23L 9/02 20060101ALI20160408BHEP

Ipc: F23B 90/04 20110101ALI20160408BHEP

Ipc: F23B 80/04 20060101ALI20160408BHEP

Ipc: F23N 5/00 20060101ALI20160408BHEP

Ipc: F23N 3/06 20060101ALI20160408BHEP

Ipc: F24B 1/02 20060101ALI20160408BHEP

Ipc: F23N 3/00 20060101AFI20160408BHEP

INTG Intention to grant announced

Effective date: 20160502

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAL Information related to payment of fee for publishing/printing deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR3

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

INTC Intention to grant announced (deleted)
17Q First examination report despatched

Effective date: 20161111

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

INTG Intention to grant announced

Effective date: 20171208

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): 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 TR

AX Request for extension of the european patent

Extension state: AL BA RS

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1003980

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009052477

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20180828

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20180530

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180530

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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: 20180530

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: 20180530

Ref country code: ES

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

Effective date: 20180530

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: 20180530

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: 20180830

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: 20180530

Ref country code: GR

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

Effective date: 20180831

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: 20180530

REG Reference to a national code

Ref country code: CH

Ref legal event code: PK

Free format text: BERICHTIGUNGEN

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1003980

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180530

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

Ref country code: NL

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

Effective date: 20180530

RIC2 Information provided on ipc code assigned after grant

Ipc: F23B 90/04 20110101ALI20160408BHEP

Ipc: F23N 3/00 20060101AFI20160408BHEP

Ipc: F23N 5/00 20060101ALI20160408BHEP

Ipc: F23B 80/04 20060101ALI20160408BHEP

Ipc: F24B 1/02 20060101ALI20160408BHEP

Ipc: F23L 9/02 20060101ALI20160408BHEP

Ipc: F23N 3/06 20060101ALI20160408BHEP

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

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: 20180530

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: 20180530

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: 20180530

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: 20180530

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: 20180530

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: 20180530

REG Reference to a national code

Ref country code: CH

Ref legal event code: PK

Free format text: BERICHTIGUNGEN

RIC2 Information provided on ipc code assigned after grant

Ipc: F23N 3/00 20060101AFI20160408BHEP

Ipc: F23B 80/04 20060101ALI20160408BHEP

Ipc: F23N 5/00 20060101ALI20160408BHEP

Ipc: F24B 1/02 20060101ALI20160408BHEP

Ipc: F23B 90/04 20110101ALI20160408BHEP

Ipc: F23N 3/06 20060101ALI20160408BHEP

Ipc: F23L 9/02 20060101ALI20160408BHEP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009052477

Country of ref document: DE

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: 20190301

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: 20180530

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: 20180530

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20190127

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190131

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190131

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

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190131

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190127

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: 20180530

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190127

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: 20181001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602009052477

Country of ref document: DE

Owner name: HWAM A/S, DK

Free format text: FORMER OWNER: IHS INNOVATION APS, HOERNING, DK

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20210114 AND 20210120

REG Reference to a national code

Ref country code: NO

Ref legal event code: CHAD

Owner name: HWAM A/S, DK

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

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: 20180930

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: 20090127

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: 20180530

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

Ref country code: DK

Payment date: 20231221

Year of fee payment: 16

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

Ref country code: DE

Payment date: 20240123

Year of fee payment: 16

Ref country code: GB

Payment date: 20240122

Year of fee payment: 16

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

Ref country code: SE

Payment date: 20240117

Year of fee payment: 16

Ref country code: NO

Payment date: 20240123

Year of fee payment: 16

Ref country code: IT

Payment date: 20240118

Year of fee payment: 16

Ref country code: FR

Payment date: 20240117

Year of fee payment: 16