EP2314947B1 - Dispositif de combustion de matière solide doté d'un caloporteur pour le transfert thermique sur un circuit de liquide - Google Patents

Dispositif de combustion de matière solide doté d'un caloporteur pour le transfert thermique sur un circuit de liquide Download PDF

Info

Publication number
EP2314947B1
EP2314947B1 EP10187408.9A EP10187408A EP2314947B1 EP 2314947 B1 EP2314947 B1 EP 2314947B1 EP 10187408 A EP10187408 A EP 10187408A EP 2314947 B1 EP2314947 B1 EP 2314947B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
solid fuel
heat
ribs
combustion device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10187408.9A
Other languages
German (de)
English (en)
Other versions
EP2314947A2 (fr
EP2314947A3 (fr
Inventor
Heribert Posch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2314947A2 publication Critical patent/EP2314947A2/fr
Publication of EP2314947A3 publication Critical patent/EP2314947A3/fr
Application granted granted Critical
Publication of EP2314947B1 publication Critical patent/EP2314947B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/02—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom
    • F23B50/06—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the flue gases being removed downwards through one or more openings in the fuel-supporting surface
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B9/00—Stoves, ranges or flue-gas ducts, with additional provisions for heating water 
    • F24B9/04—Stoves, ranges or flue-gas ducts, with additional provisions for heating water  in closed containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2230/00—Solid fuel fired boiler

Definitions

  • the invention relates to a solid fuel combustion device having a heat exchanger for heat transfer to a fluid circuit.
  • Such fuel devices are used, for example, to operate the central heating of a residential house with solid fuel, such as wood.
  • the heat generated by the combustion device is supplied via the heat exchanger and the liquid circuit a liquid-filled heat storage, from which the consumers - for example, underfloor heating, hot water consumption points, etc. - get their heat energy.
  • the space of the pre-combustion chamber is greatly increased above the combustion grate on which forms the ember, and also serves as a fuel storage space, filled in the up to 1 m 3 solid fuel at once can be, for example, logs.
  • the burnup so the flue gas duct, usually takes place from the pre-combustion chamber through the combustion grate down into the afterburner, where the afterburning of the flue gases takes place, usually with the help of the secondary air supplied there or in the region of the combustion grate.
  • devices have been proposed which are intended to solve the deposits by automatic knocking or hitting or in the heat exchanger elements, or to prevent their setting.
  • the heat exchanger ribs over a small portion of their surface in physical contact with the liquid-carrying part of the heat exchanger (hereinafter referred to as liquid part), the amount of tar deposits is drastically reduced.
  • Tar deposits are due to a caused by rapid drop in temperature condensation of gaseous or vaporous combustion residues present in the flue gases, since the areas of the heat exchanger elements flowed through at the back of the liquid of the heat exchanger have a much lower temperature than the flue gases.
  • the heat exchanger fins are tubes whose interior is traversed by cool liquid
  • the entire outer surface of the tubes, which is flowed from the flue gases, due to the full-surface contact with the cool liquid is approximately at the temperature level of the liquid.
  • heat exchanger fins In the heat exchanger fins according to the invention, these are in physical contact with the liquid part of the heat exchanger only over a small cross-sectional area and only in this small part is the Temperature of the heat exchanger fin approximately that of the cooler liquid.
  • the remaining, much larger, part of the heat-conductive material, usually metal, existing heat exchanger fins is not in direct physical contact with the cool liquid part, but is flowed on both sides of the hot flue gases and therefore has a temperature level close to the temperature of the Flue gases on.
  • the heat exchanger fins are preferably made of folded sheet metal material, according to the invention are U-shaped, and are attached to the outside of their connecting intermediate leg on the particular flat outside of the liquid-flow part of the heat exchanger surface, in particular welded, e.g. MAG-welded, soldered or glued.
  • This cladding of heat-storing material faces on the opposite side, ie its rear side facing away from the heat exchanger, the main combustion chamber and / or the fuel storage space and / or the afterburner and extends in particular over all three areas and thus the entire height of the combustion device.
  • a further cover made of sheet steel may be present.
  • the heat-storing panel causes in times of low heat input by the flue gases on the heat exchanger fins that the heat exchanger fins are then kept by the heat-storing material then emitted radiant heat substantially at the high temperature.
  • the cross-sectional area of the heat exchanger fins considered in the direction of heat exchanger lining in the direction of heat exchanger fins and in particular their parts not in contact with the liquid part is to be as large as possible, which is why with heat-exchanger fins folded in a U-shape, these are preferably connected to the free end. shaped diverge legs are designed.
  • the heat exchanger ribs may also consist of simple plates which are attached with a narrow side of the liquid part, but then the contact surface to the liquid part is very low and the efficiency of the heat exchanger is reduced.
  • the V-shaped apart heat exchanger fins have the further advantage that - if it should form deposits inside the heat exchanger ribs - they can be very easily mechanically cleaned by a cleaning cover removed above the heat exchanger and using a brush, the heat exchanger fins from above be brushed down so that deposits fall down into the after-combustion chamber.
  • the liquid-flowed part of the heat exchanger can be a rectangular, flat box, which forms the outer wall of the heat exchanger, and from one side of the U-shaped, in each case parallel from bottom to top according to the flow direction of the flue gases extending - heat exchanger ribs are soldered or welded with their middle leg.
  • connection of these metallic parts of the heat exchanger to the arranged at a small distance from the free ends of the heat exchanger fins heat storing panel is neither necessary nor useful, because these two parts have very different expansion behavior and should not be mechanically interconnected.
  • the therefore necessarily existing distance between the free ends of the heat exchanger fins on the one hand and the heat-storing panel on the other hand should be kept as low as possible in order to keep as low as possible a passage of flue gases that have no contact with the heat exchanger fins and the distance losses of radiant heat of The heat-storing panel on the heat exchanger ribs also to minimize.
  • FIG. 1 a shows a vertical section of the schematic diagram of a generic combustion device 1 according to the prior art.
  • the burning takes place down through the grate 2, since the primary air inlet 27 above the burner grate 2, z. B. as shown in the side wall 11 a, b, and are passed through the combustion grate 2 down in the arranged below the afterburner 4 and from there into the lower open end of the heat exchanger 20, each in a side wall 11 a, b and / or the rear wall of the combustion device 1 is arranged and lies approximately at the level of the lower end of the afterburner 4.
  • the flue gases then flow in the side walls 11 a, b through the heat exchanger 20 upwards, and are passed at the upper outlet of the heat exchanger 20 in the housing 11 of the combustion device 1 to a central central flue gas discharge 5.
  • FIG. 1 are the grate bars 2a, b - which individually in the supervision of the FIG. 1 b are visible - formed as hollow tubes and give the flue gases through outlet openings 7a, b secondary gas 8, usually air, from the flue gases to improve the afterburning in the afterburner 4.
  • the metal grate bars 2a, b lie on the side of a side lining 13 of the Nachbrennraumes 4, which usually consists of heat-storing and heat-resistant material such as chamotte or silicon carbide, while the rest of the housing 11 of the burner is made of sheet steel.
  • FIG. 2 The solution of FIG. 2 is different from the one of FIG. 1 in that the supply of secondary gas 8 does not take place through the grate bars 2a, b, but instead 2 special nozzle tubes 6 are present in the afterburner 4 below the combustion grate, which have outlet openings 7a, b for secondary gas 8 at their side surfaces and - via the in FIG. 2b apparent distribution box 9 - be charged with secondary gas.
  • FIG. 3a shows a specific generic combustion device 1 in exploded view and in FIG. 3b in the supervision.
  • main and secondary combustion chamber 3, 4 made of refractory material is omitted in these illustrations. There are only the metal parts of the housing 11 drawn.
  • the ribs 22 of the heat exchanger 20 are arranged in the hollow side walls 11 a, b of the housing of the burner device 1.
  • the central flue gas outlet 5 can be seen in the rear area, to which the flue gases are directed after high currents in the lateral heat exchangers 20.
  • a heat exchanger can also be arranged in the rear wall 11d of the housing 11, which as a rule is not necessary since the side walls 11a, b are large enough.
  • the inventive feature of the heat exchanger 20 is best in the horizontal section of the FIG. 4 visible through the heat exchanger 20.
  • the liquid-flow through part 24 of the heat exchanger 20 can be seen, which is for example a welded steel sheet, cuboid, flat, almost plate-shaped box, which extends along the entire side surface of the burner may extend from the lower edge of the Nachbrennraumes to the upper edge of the fuel storage space 23.
  • the heat exchanger ribs 22 are usually made of sheet steel, possibly also made of copper or aluminum, and are usually folded sheet metal parts, so in the simplest case have over the entire cross-sectional extent constant wall thickness.
  • the wall thickness increases from the free end of the heat exchanger fin 22b, c towards the central leg 22a, in accordance with the heat flux increasing in this direction.
  • liquid part 24 Opposite the liquid part 24 is - parallel to and at a small distance 26 to the free ends of the heat exchanger ribs 22 - arranged a flat panel 25 of a heat-storing material such as fireclay or silicon carbide, so that the flow space 28 for the flue gases in the heat exchanger through this panel 25 on the one hand and the liquid part 24 on the other hand is limited and on the front and rear end faces, not shown, of course, by corresponding foreclosures, usually made of sheet metal.
  • a heat-storing material such as fireclay or silicon carbide
  • the absolute height of the temperature curve according to FIG. 6 depends on what height of the heat exchanger 20 - so according to the direction of progress of the flue gases through the heat exchanger 20 through - it is recorded, because the temperature T RG of the flue gases decreases increasingly in this process.
  • this minimum temperature difference ⁇ T min is generally not exceeded, but at most in the region of the middle leg 22a.
  • FIG. 3b shows, above the heat exchanger 20 in addition to the middle lid 11c each have a cleaning cover 30 which can be removed, so that then with a matching brush, the heat exchanger ribs 22 can be cleaned from above.
  • the loosening deposits fall down along the ribs 22 and then lie in the afterburner 4, where they can be disposed of together with the rest of the ash there.
  • This heat-storing panel 25 is heated on the one hand by the flue gases flowing along, on the other hand, but also by the heat acting from the opposite side, ie from the combustion chambers 3. 4, on the heat-storing panel 25 heat directly.
  • the heat-storing cladding 25 must have a sufficient volume, that is to say a sufficient thickness, as it generally extends over the entire side surface of the burner device 1, as does the liquid part 24.
  • the distance 26 between the free ends of the heat exchanger fins 22 and the panel 25 is chosen as small as possible, but no mechanical connection between these two parts is possible and not necessary.
  • FIG. 5 shows an exemplary design of a single heat exchanger rib 22, as it can be easily generated in a bending device of a simple sheet metal strip, which is bent centrally by means of a round rod contour.
  • the middle leg 22a of the heat exchanger fin is bent semicircular with convex curvature outwards and serves for fixing to the liquid part 24th
  • the wall thickness is about 3 mm with a radius of curvature of the middle leg 22a that is about four times as large.
  • a plurality of through holes 29 are arranged in the middle of the connecting leg 22a, which are e.g. can be used for spot welding to the liquid part 24, but this serves only as pre-fixing.
  • the rib 22 is welded along its entire length continuously relative to the liquid part 24 in order to achieve a good heat transfer.

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Solid-Fuel Combustion (AREA)
  • Details Of Fluid Heaters (AREA)

Claims (7)

  1. Dispositif de combustion de matières solides (1) comprenant une chambre principale de combustion (3), une chambre de combustion postérieure (4), ainsi qu'un échangeur thermique (20) qui est traversé par les gaz de fumée pour le transfert de chaleur à un circuit de fluide (21) comprenant
    a) une grille de combustion (2) pour placer une matière solide combustible, en particulier du bois (10),
    b) une évacuation de gaz de fumée (5) depuis la chambre de combustion principale (3) au-dessus de la grille de combustion (2) à travers la grille de combustion (2) vers le bas dans la chambre de combustion postérieure (4),
    c) l'échangeur de chaleur (20) présentant plusieurs ailettes d'échange de chaleur (22) et transmettant la chaleur au circuit de fluide (21),
    d) les ailettes d'échange de chaleur (22) se trouvant en contact physique sur moins de 30 % de leur surface avec la partie (24) guidant le fluide de l'échangeur thermique (20),
    caractérisé en ce
    e) qu'il est disposé, sur la face des ailettes d'échange de chaleur (22), détournée de la partie (24) guidant le fluide de l'échangeur thermique (20), et à la plus faible distance possible, un revêtement (25) en matériau stockant la chaleur, en particulier de la chamotte ou du carbure de silicium, entre la chambre de combustion principale (3) et les ailettes d'échange de chaleur (22),
    f) que les ailettes d'échange de chaleur (22) sont en forme de U et sont fixées par leur branche médiane (22a) sur la partie (24) guidant le fluide de l'échangeur thermique (20).
  2. Dispositif de combustion de matières solides (1) selon la revendication 1,
    caractérisé en ce
    que les ailettes d'échange de chaleur (22) sont connectées uniquement sur une face de leur périphérie à la partie (24) guidant le fluide de l'échangeur thermique (20) et/ou les ailettes d'échange de chaleur (22) sont soudées à la partie guidant le fluide de l'échangeur thermique (20).
  3. Dispositif de combustion de matières solides (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que l'échangeur thermique (20) est disposé le long des parois latérales du dispositif de combustion de matières solides (1).
  4. Dispositif de combustion de matières solides (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que le revêtement stockant la chaleur (25) et/ou les ailettes d'échange de chaleur (22) s'étendent sur l'ensemble de la hauteur de la chambre principale de combustion (3) et d'une chambre de réserve de combustible (23) et en particulier également sur la hauteur de la chambre de combustion postérieure (4).
  5. Dispositif de combustion de matières solides (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que les branches (22b, c) d'extrémité libre des ailettes d'échange de chaleur (22) présentent une distance croissante par rapport à l'extrémité libre.
  6. Dispositif de combustion de matières solides (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que l'épaisseur de paroi entre l'extrémité libre des branches (22b, c) d'extrémité libre des ailettes d'échange de chaleur et la branche médiane augmente en fonction du flux thermique croissant dans cette direction.
  7. Dispositif de combustion de matières solides (1) selon l'une des revendications précédentes,
    caractérisé en ce
    que les branches (22b, c) d'extrémité libre des ailettes d'échange de chaleur (22) en forme de U présentent une épaisseur de paroi décroissante en direction de l'extrémité libre.
EP10187408.9A 2009-10-23 2010-10-13 Dispositif de combustion de matière solide doté d'un caloporteur pour le transfert thermique sur un circuit de liquide Not-in-force EP2314947B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009050507A DE102009050507B4 (de) 2009-10-23 2009-10-23 Feststoff-Brennvorrichtung mit Wärmetauscher zur Wärmeübertragung an einen Flüssigkeits-Kreislauf

Publications (3)

Publication Number Publication Date
EP2314947A2 EP2314947A2 (fr) 2011-04-27
EP2314947A3 EP2314947A3 (fr) 2014-11-19
EP2314947B1 true EP2314947B1 (fr) 2018-02-14

Family

ID=43727318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10187408.9A Not-in-force EP2314947B1 (fr) 2009-10-23 2010-10-13 Dispositif de combustion de matière solide doté d'un caloporteur pour le transfert thermique sur un circuit de liquide

Country Status (2)

Country Link
EP (1) EP2314947B1 (fr)
DE (1) DE102009050507B4 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013019954A1 (de) 2013-11-27 2015-05-28 Karl Stefan Riener Ofen zur Wärmeerzeugung
DE102015004823A1 (de) 2015-04-14 2016-11-03 Rika Innovative Ofentechnik Gmbh Ofen
EP3290795B1 (fr) 2016-09-02 2019-07-17 Fröling Heizkessel- Und Behälterbau Gesellschaft M.B.H Chaudière
EP3514454A4 (fr) * 2016-09-15 2020-05-20 Pyroheat Oü Chaudière à pyrolyse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7409278U (de) * 1974-03-16 1977-08-25 W. Ernst Haas + Sohn, 6349 Sinn Oel- oder gasbeheizter, druckloser warmwasserbereiter
DE2913205C2 (de) * 1979-04-03 1985-07-04 Interliz Anstalt, Vaduz Zweikammer-Heizkessel für Brennerfeuerung und Festbrennstoff-Feuerung
DE8101941U1 (de) * 1981-01-27 1981-05-21 Vießmann, Hans, 3559 Battenberg Kaminheizkessel
FR2558241B1 (fr) * 1984-01-18 1989-03-31 Tabel Rene Chaudiere a bois comportant une chambre de prechauffage du comburant
DE8407225U1 (de) * 1984-03-09 1985-11-07 Vießmann, Hans, Dr.h.c., 3559 Battenberg Vergaserheizkessel für Festbrennstoffe
FR2607227B1 (fr) * 1986-11-21 1989-04-07 Lemer Joseph Chaudiere a combustible solide et, plus particulierement, chaudiere a bois
DE3737661A1 (de) * 1987-11-06 1989-05-24 Karl Ackermann Heizungskessel mit zwangsweiser zufuhr der verbrennungsluft
FR2682176B1 (fr) * 1991-10-07 1993-12-17 Chablais Ste Financiere Cale Chaudiere a bois a pyrolyse, a combustion inversee et tirage force.

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
DE102009050507A1 (de) 2011-04-28
DE102009050507B4 (de) 2012-08-30
EP2314947A2 (fr) 2011-04-27
EP2314947A3 (fr) 2014-11-19

Similar Documents

Publication Publication Date Title
DE60308696T2 (de) Wärmetauscher für ein brennwertgerät mit doppelrohrbündel
EP2314947B1 (fr) Dispositif de combustion de matière solide doté d'un caloporteur pour le transfert thermique sur un circuit de liquide
DE112014002165T5 (de) Wärmeübertragungstauchrohr für Wirbelschichtboiler und Wirbelschichtboiler
DE29616022U1 (de) Anlage zur Rückgewinnung von Wärme aus den Abgasen von Feuerungsanlagen
DE3325200C1 (de) Heizungskessel
DE102008037762A1 (de) Gliederheizkessel aus Gusseisen oder Aluminium
DE4442281A1 (de) Behälterartiger Sammler und Verteiler für Heizungs- und/oder Kühlanlagen
DE202006003153U1 (de) Energierückgewinnungsmodul
DE202009011326U1 (de) Wärmetauscher für den Rauchgaskanal einer Feuerung
DE102008035407A1 (de) Wärmetauscher
DE102007010585A1 (de) Wasserregister für einen Ofen, Wärmetauscher hierfür, sowie Verfahren zu deren Herstellung
EP0616173A2 (fr) Procédure et chaudière pour le chauffage combiné d'un chauffage d'un batiment et d'un accumulateur pour eau sanitaire
DE3205121C2 (de) Heizungskessel
EP1602886A2 (fr) Chaudière
EP0166703B1 (fr) Chaudière
DE202009004942U1 (de) Grundofenanordnung mit einem Wärmetauscher
EP0387584B1 (fr) Tuyau de tirage pour gaz de chauffage
DE102007059425A1 (de) Brennwertkammer eines Speicherkessels einer Heizanlage
DE3310343A1 (de) Niedertemperaturkessel mit zylindrischer feuerraumzarge
EP1406049B1 (fr) générateur de chaleur insérable et utilisation dans un accumulator
DE10246259B3 (de) Speicher mit Wärmeerzeugereinschub
EP0851180B1 (fr) Installation de chauffage
DE3348037C2 (fr)
DE2804780C2 (de) Heizungskessel für flüssige oder gasförmige Brennstoffe
AT369521B (de) Vorrichtung zur bereitung von heisswasser oder heissluft

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): 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 RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RIC1 Information provided on ipc code assigned before grant

Ipc: F23B 50/06 20060101ALI20141002BHEP

Ipc: F23B 80/04 20060101ALI20141002BHEP

Ipc: F24H 1/38 20060101AFI20141002BHEP

AK Designated contracting states

Kind code of ref document: A3

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 RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: F23B 50/06 20060101ALI20141010BHEP

Ipc: F24H 1/38 20060101AFI20141010BHEP

Ipc: F23B 80/04 20060101ALI20141010BHEP

17P Request for examination filed

Effective date: 20150519

RBV Designated contracting states (corrected)

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 RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20150630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502010014643

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F24H0001380000

Ipc: F24B0009040000

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: F23B 50/06 20060101ALI20170712BHEP

Ipc: F23B 80/04 20060101ALI20170712BHEP

Ipc: F24H 1/38 20060101ALI20170712BHEP

Ipc: F24B 9/04 20060101AFI20170712BHEP

INTG Intention to grant announced

Effective date: 20170816

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): 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 RS 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

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010014643

Country of ref document: DE

Ref country code: AT

Ref legal event code: REF

Ref document number: 970089

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180315

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SCHMAUDER AND PARTNER AG PATENT- UND MARKENANW, CH

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180214

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

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: 20180214

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: 20180214

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: 20180214

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: 20180214

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: 20180214

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: 20180514

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: 20180214

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

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: 20180514

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: 20180515

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: 20180214

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: 20180214

Ref country code: RS

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: 20180214

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

Effective date: 20180214

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

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: 20180214

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: 20180214

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: 20180214

Ref country code: IT

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

Effective date: 20180214

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: 20180214

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010014643

Country of ref document: DE

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

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: 20180214

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: 20180214

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: 20180214

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: 20180214

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: 20181115

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: 20180214

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20181013

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181031

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: 20180214

Ref country code: LU

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

Effective date: 20181013

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: CH

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

Effective date: 20181031

Ref country code: FR

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

Effective date: 20181031

Ref country code: LI

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

Effective date: 20181031

Ref country code: BE

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

Effective date: 20181031

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: 20181013

Ref country code: GB

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

Effective date: 20181013

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: 20180214

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

Ref country code: AT

Payment date: 20191018

Year of fee payment: 10

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

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: 20180214

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: 20101013

Ref country code: MK

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

Effective date: 20180214

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: 20180614

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

Ref country code: DE

Payment date: 20201030

Year of fee payment: 11

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 970089

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201013

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 NON-PAYMENT OF DUE FEES

Effective date: 20201013

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502010014643

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20220503