EP1074790B1 - Brenner mit Abgasrückführung - Google Patents

Brenner mit Abgasrückführung Download PDF

Info

Publication number
EP1074790B1
EP1074790B1 EP00430026A EP00430026A EP1074790B1 EP 1074790 B1 EP1074790 B1 EP 1074790B1 EP 00430026 A EP00430026 A EP 00430026A EP 00430026 A EP00430026 A EP 00430026A EP 1074790 B1 EP1074790 B1 EP 1074790B1
Authority
EP
European Patent Office
Prior art keywords
duct
burner
ducts
air
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00430026A
Other languages
English (en)
French (fr)
Other versions
EP1074790A1 (de
Inventor
Jean-Claude Gauthier
Frédéric Bury
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.)
Entreprise Generale de Chauffage Industriel Pillard SA
Original Assignee
Entreprise Generale de Chauffage Industriel Pillard SA
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 Entreprise Generale de Chauffage Industriel Pillard SA filed Critical Entreprise Generale de Chauffage Industriel Pillard SA
Publication of EP1074790A1 publication Critical patent/EP1074790A1/de
Application granted granted Critical
Publication of EP1074790B1 publication Critical patent/EP1074790B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
    • F23D17/002—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel gaseous or liquid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/78—Cooling burner parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/20—Premixing fluegas with fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/40—Inducing local whirls around flame

Definitions

  • the present invention relates to improvements made industrial burners with liquid or gaseous fuel.
  • the technical field of the invention is the field of manufacture industrial burners.
  • the present invention more particularly relates to improvements in low-emission gaseous fuel burners nitrogen oxide having primary gas injection means fuel arranged in the center of the burner and injection means secondary devices, and intended to be mounted either in an orifice intended for that in the wall of an enclosure, such as the chamber of combustion or hearth of a furnace or boiler, that is, in the central part of a turbine exhaust gas flow duct of a installation of co-generation of electrical and thermal energy, in order to warm up these exhaust gases.
  • the present invention has more particularly concerned a burner in which combines the two above methods of flue gas recirculation, on the one hand, and staging of the fuel supply, on the other hand.
  • US Pat. No. 5,284,438 describes a burner of similar structure but more complex, in which the burner block delimits a convergent and a divergent separated by a constriction, and includes conduits fumes extraction by fuel jets which, by their dimensions, their flared shape at the entrance, their inclined position and their exit located in the divergent from the block, are supposed to ensure a defined dosage of the mixture fuel - fumes and its injection into a mixing zone with air, which is situated in the divergent;
  • this burner comprises a central duct injection nozzle equipped with a nozzle, and a stabilizer of flame ;
  • this structure causes the formation of jets (of a mixture fuel - smoke) turbulent and swirling, and causes them to mixing with the air in the mixing zones delimited by the block.
  • EP 675 321 discloses a gaseous fuel burner which has several primary fuel injection rods arranged in the central part of an air duct delimited by the body tubular burner; the ends of the rods are bent outwards, arranged under the slots of a flame stabilizer, and the ends of rods are pierced with holes through which fuel gas is injected in the focus through the slits of the stabilizer; the burner has in in addition to (secondary) gaseous fuel injection rods, which are distributed around the primary injection rods, and which end with a single nozzle each opening into a recirculation duct smoke produced in the home; these secondary injection canes, as well that the associated recirculation ducts, are located inside the canal of air, to ensure their cooling by the air circulating there.
  • Each recirculation duct opens into the firebox in parallel to the air channel, and communicates at its other end with the hearth by a orifice pierced in the wall of the air channel, at the outer periphery of the burner; these orifices allow, by suction effect and drive, to recirculate the fumes that mix with the gas fuel and reduce the formation of nitrogen oxides; to complete this reduction by increasing the staging of combustion, the burner includes (tertiary) fuel injection rods crossing the wall of the hearth enclosure; each cane is associated with a air intake channel surrounding the cane.
  • Patent EP 675 321 also describes a burner devoid of means tertiary fuel injection, whose performance is reduced.
  • the burner described in this document has certain disadvantages: the gaseous currents delivered by the rods and the air channels associated with these tertiary means of injection, are likely to form a curtain surrounding the secondary means of fuel gas injection, which is likely to disturb and limit the efficiency of the recirculation system smoke by secondary means for injecting gaseous fuel; a Another disadvantage is the difficulty of regulating and controlling the effect produced by the jets of air surrounding the gas jets of tertiary means injection, and in particular to control these coaxial jets and their mixture necessary for good combustion with other jets caused by this burner, which is equipped with three separate injection systems gaseous fuel and two separate transport and injection systems air in the burner (and hearth); in addition, a disadvantage related to canes extending through the walls delimiting the enclosure of the home, lies in the large size of this system and the difficulty of repairing it, maintain and / or modify such a system partially embedded in the wall of the hearth of the hearth.
  • An object of the present invention is to provide a burner improved and at least partially remedy the disadvantages of burners known while improving their performance in reducing the formation of nitrogen oxides.
  • An object of the present invention is in particular to improve the self-recirculation of fumes.
  • An object of the present invention is also to propose a compact burner, simple, inexpensive and likely to be used in a Turbine exhaust gas transport duct (s).
  • the invention consists in proposing a burner gaseous fuel which comprises a central transport duct fuel, a central air duct surrounding said duct central fuel, several gaseous fuel extending at least partly outside the duct central air transport, preferably parallel to it, and completed each by a fuel ejection nozzle;
  • the burner has in in addition to a rectilinear section of cylindrical conduit (or tube) of recirculation of fumes, which is arranged in the extension of each nozzle and at a distance (in front) thereof;
  • the air transport duct and the smoke extraction ducts are metallic, substantially parallel between them, and preferably open substantially in the same plane perpendicular to the longitudinal axis of the burner;
  • the suction ducts of The fumes are fixed on the metal body of the burner, preferably on the air transport duct, by a metal connection which contributes to ensure, by conduction, the cooling of the suction ducts by the burner body (especially by the air duct) which is itself cooled by the air it carries
  • each peripheral fuel nozzle from the inlet of the associated recirculation tube is preferably same order of magnitude as the radius or diameter of the pipe section of recirculation, for example of the order of 2 to 20 centimeters; thus, the space between the nozzle and the inlet (the upstream end) of the recirculation facilitates the extraction of fumes and the mixing of gas combustible with the fumes present in the hearth, delineating a passage section for smokes of significantly larger dimensions large than that defined by the peripheral opening of the tubes of recirculation described in EP 675 321; in addition, this provision allows and / or facilitates the adjustment, during assembly or the installation of the burner, this distance, which makes it possible to optimize suction, mixing and entrainment of fumes by gas jets combustible.
  • the cooling of Conducted flue gas recirculation ducts with the central duct air transport is sufficient to prevent deterioration of these ducts although these flues are located in the fireplace (and / or are subjected to intense heating by the direct radiation of the flame); preferably, for this purpose, the metal link serving as a heat sink extends over a large area, particularly substantially over the entire length of the recirculation ducts; this link is preferably obtained by welding.
  • the cooling of flue gas tubes can not be obtained by convection with a flow of air (relatively cold) as is the case in EP 675 321 and in the patent application FR 98/10350 filed August 7, 1998 by the Claimant; in this document indeed, peripheral nozzles of air injection are arranged nested with the peripheral nozzles fuel injection.
  • Said peripheral nozzles and the associated suction ducts are preferably identical, arranged equidistant from the axis longitudinal axis of the burner (that is to say on a circle) and in a symmetry of revolution (that is, angularly equidistant).
  • the peripheral gas injection nozzles fuel and the associated flue gas pipes are three to twelve, in particular six to eight, arranged in a crown, regularly (angularly) distributed around the longitudinal axis (of general symmetry) of the burner.
  • the invention consists of a gas heater turbine, which comprises a burner according to the invention which is mounted in the central part of a turbine gas transport duct which is equipped with partial closure shutters.
  • the external position of the smoke circulation tubes avoids disturbing the combustion of the fuel delivered in the central part.
  • FIG. 1 illustrates in longitudinal sectional view a burner with liquid and gaseous fuel according to the invention.
  • FIG. 2 is a front view of the front end of the burner of the Figure 1 and is a view along II of Figure 1.
  • FIG. 3 illustrates in longitudinal sectional view a heater of turbine outlet gas according to the invention.
  • the burner 1 (FIGS. 1 and 2) comprises a first ferrule cylindrical 2 longitudinal axis 3 horizontal, and a second ferrule cylindrical 4 coaxial with the first, which delimits a duct 5; the ferrule 2 defines a central duct 31 for air passage, which extends the duct 5 air inlet.
  • the burner extends through a cylindrical orifice 6 provided in the wall 7 separating the hearth 8 from the outside 9 of the enclosure.
  • the burner comprises in central part a central rod of transport of liquid fuel (in particular such as heavy fuel oil, diesel fuel, gasoline, oils, residual liquids ...) up to the equipped burner head a central nozzle 11 and a flame stabilizer 12, which are arranged at the front end of the duct 31 and the ferrule 2, and are salient at inside the fireplace 8; the burner further comprises a central rod 100 injection of gaseous fuel.
  • liquid fuel in particular such as heavy fuel oil, diesel fuel, gasoline, oils, residual liquids
  • the burner comprises a bundle of six peripheral tubes 13 of transport of fuel gas, which are each equipped at their end before a nozzle 14 arranged protruding (for example prominent 1 centimeter) to the inner face 15 of the wall 7.
  • the tubes 13 extends parallel to the axis 3 inside duct 5 for air transport; the tubes 13 are powered by a common collector 16, and pass through an annular flange 17 connecting ferrules 2 and 4; as illustrated in FIG. 2, the six identical nozzles 14 fuel gas ejection are angularly spaced 60 degrees.
  • the longitudinal axes 20 of the nozzles 14 which are parallel to the axis 3, are located on identical or neighboring rays.
  • the axis of the tubes 22 coincides with the axis of the nozzles 14 and the end rear 24 identical sections 22 is disposed at a distance 25 from the corresponding nozzle 14, which distance is close to 50 millimeters, and corresponding to the diameter of the tubes 22.
  • the front end 23 of the tubes 22 extends in the plane 112 containing the outlet orifice of the central duct 31.
  • the burner 1 is mounted in a duct 200, of axis coincides with the axis 3 of the burner, delimited by walls 201 (In the case where several burners are mounted in the duct 200, their axes 3 are parallel to that of the duct).
  • the pipe 200 carries (according to the arrows 103) gas leaving a turbine, whose temperature is of the order of 500 ° C or, when the turbine is stopped, air; in the latter case, shutters 104, which are pivotally mounted in the conduit 200 along axes 105, seal partially - in the position shown in solid lines - the section of passage of the duct 200 leaving the passage free - according to the arrows 102 - through the conduit 2 of the burner; the (open) position of the shutters shown in dashed lines corresponds to the case where the turbine gases are present.
  • the burner is fixed in the duct 200 by means represented.
  • peripheral ducts 13 are supplied with gas fuel by a second collector 16; the flow of gaseous fuel injected by the peripheral nozzles is generally of the order of 90 95% of the total fuel flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Claims (9)

  1. Brenner (1) mit gasförmigem Brennstoff, der eine zentrale Brennstofftransportleitung (10, 100), eine zentrale Lufttransportleitung (2), welche die zentrale Brennstoffleitung umgibt, und mehrere Umfangstransportleitungen (13) für den gasförmigen Brennstoff aufweist, dadurch gekennzeichnet, dass sich die Umfangsleitungen zumindest zum Teil außerhalb der zentralen Lufttransportleitung erstrecken, dass der Brenner außerdem ein geradliniges Leitungsteilstück (22) zur Rückführung der Rauchgase aufweist, welches in der Verlängerung jeder Düse (14), mit welcher die Umfangsleitungen (13) ausgestattet sind, angeordnet ist, und dass die Rauchgasansaugleitungen (22) durch eine Verbindung (101) an der Lufttransportleitung (2) außerhalb von dieser befestigt sind und nicht mit einem Luftstrom in Kontakt kommen, wobei ihre Kühlung durch Übertragung mittels der Verbindung (101) erreicht wird.
  2. Brenner gemäß Anspruch 1, bei welchem die Leitungen (22) an einer ihrer Mantellinien mit einem Verbindungsmetallstab (101) verschweißt sind, welcher auf einer Mantellinie der Leitung (2) parallel zu dieser verschweißt ist.
  3. Brenner gemäß irgendeinem der Ansprüche 1 oder 2, der einen Flammenstabilisator (105) und eine Ablenkrosette (106) aufweist, welche in der Luftleitung (2, 31) in der Nähe ihrer Endebene (112) angeordnet sind.
  4. Brenner gemäß irgendeinem der Ansprüche 1 bis 3, bei welchem die oberstromige Öffnung (24) jeder Leitung (22) mit einem Abstand (25) von der entsprechenden Düse (14) angeordnet ist, welcher in der Größenordnung des Durchmessers der Leitung (22) liegt.
  5. Brenner gemäß irgendeinem der Ansprüche 1 bis 4, bei welchem sich die Ausgangsöffnung (23) der Leitungen (22) praktisch in der Querausgangsebene (112) der Leitung (2) erstreckt.
  6. Brenner gemäß irgendeinem der Ansprüche 1 bis 5, bei welchem die Düsen (14) und die Leitungen (2, 22) in das Innere des Feuerraumes (8) vorspringen.
  7. Brenner gemäß irgendeinem der Ansprüche 1 bis 6, bei welchem die Rauchgasrückfühneitungen (22) und die Lufttransportleitung (2) aus Metall bestehen.
  8. Vorwärmer für Turbinengase, die von einer Leitung (200) transportiert werden, welche mit Verschlussklappen (104) ausgestattet ist, dadurch gekennzeichnet, dass er einen Brenner gemäß irgendeinem der Ansprüche 1 bis 7 aufweist.
  9. Vorwärmer gemäß Anspruch 8, der eine Luftversorgungsleitung (106) für die Kühlung des Brenners aufweist.
EP00430026A 1999-08-04 2000-07-27 Brenner mit Abgasrückführung Expired - Lifetime EP1074790B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9910296A FR2797321B1 (fr) 1999-08-04 1999-08-04 Bruleurs a recirculation de fumees et a faible emission d'oxydes d'azote et rechauffeurs de gaz comportant de tels bruleurs
FR9910296 1999-08-04

Publications (2)

Publication Number Publication Date
EP1074790A1 EP1074790A1 (de) 2001-02-07
EP1074790B1 true EP1074790B1 (de) 2004-11-24

Family

ID=9548999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00430026A Expired - Lifetime EP1074790B1 (de) 1999-08-04 2000-07-27 Brenner mit Abgasrückführung

Country Status (3)

Country Link
EP (1) EP1074790B1 (de)
DE (1) DE60016106T2 (de)
FR (1) FR2797321B1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007134580A1 (de) * 2006-05-19 2007-11-29 Ulrich Dreizler Flammenmodellierung
FR2914398B1 (fr) 2007-04-02 2009-12-18 Pillard Chauffage Bruleur a combustible gazeux
CN103277795B (zh) * 2013-05-27 2015-05-20 中国科学院广州能源研究所 可调节烟气自身再循环燃气燃烧器
US9593847B1 (en) * 2014-03-05 2017-03-14 Zeeco, Inc. Fuel-flexible burner apparatus and method for fired heaters
CN109631036B (zh) * 2019-01-14 2023-08-25 唐山亿昌热能科技有限公司 一种超低氮氧化物的燃烧方法及匹配的燃烧头和燃烧装置
CN110594743B (zh) * 2019-10-12 2024-05-07 西藏仁泽环境技术有限公司 一种利用高热值废液燃烧低热值废气的混合燃料燃烧器
CN112303621B (zh) * 2020-03-02 2023-06-16 青岛永泰锅炉有限公司 一种超低氮锅炉气体燃烧器
IT202000028394A1 (it) * 2020-11-25 2022-05-25 Baltur S P A Bruciatore e apparato industriale a ridotte emissioni
CN217131272U (zh) * 2020-11-25 2022-08-05 百得股份公司 减少排放的工业燃烧器和设备
CN116379431A (zh) * 2023-03-30 2023-07-04 武汉明正动力工程有限公司 一种四合一低氮燃烧器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3822004A1 (de) * 1988-06-30 1990-01-04 Babcock Werke Ag Brenner
US5073105A (en) * 1991-05-01 1991-12-17 Callidus Technologies Inc. Low NOx burner assemblies
US5284438A (en) 1992-01-07 1994-02-08 Koch Engineering Company, Inc. Multiple purpose burner process and apparatus
US5238395A (en) * 1992-03-27 1993-08-24 John Zink Company Low nox gas burner apparatus and methods
FR2718222B1 (fr) 1994-03-29 1996-07-05 Pillard Ent Gle Chauffage Indl Perfectionnements de brûleurs à combustible gazeux à très faible émission d'oxyde d'azote.
FR2760071B1 (fr) * 1997-02-27 1999-05-28 Pillard Chauffage Dispositif de montage de bruleurs dans un conduit de gaz a chauffer
FR2782150B1 (fr) * 1998-08-07 2000-11-10 Pillard Chauffage Perfectionnements aux bruleurs a recirculation de fumees et a faible emission d'oxydes d'azote

Also Published As

Publication number Publication date
DE60016106T2 (de) 2005-12-01
EP1074790A1 (de) 2001-02-07
DE60016106D1 (de) 2004-12-30
FR2797321B1 (fr) 2001-10-26
FR2797321A1 (fr) 2001-02-09

Similar Documents

Publication Publication Date Title
CA1253745A (fr) Bruleur a charbon pulverise
EP0675321B1 (de) Gasbrenner mit sehr niedrigen Stickstoffoxidemissionen
EP1907754B1 (de) Verfahren und anlage für trägerlose magere kraftstoff-gas-verbrennung unter verwendung eines brenners und zugehöriger brenner
EP1074790B1 (de) Brenner mit Abgasrückführung
EP0703410B1 (de) Brenner mit einem Brennerstein und Verfahren zu dessen Verwendung
EP2037174B1 (de) Handwerkzeug mit verbesserter Gasverbrennung
EP0313469B1 (de) Gasbrenner zur Heizung eines Luftstromes oder eines anderen sauerstoffhaltigen Gases
EP0967434B1 (de) Brenner mit konzentrischer Luftzufuhr und zentral angeordnetem Stabilisator
EP0926434A1 (de) Stickoxidemissionsarmer Brenner mit Gasrückführung
EP1122494B1 (de) Gasbrenner zum Erwärmen eines Gasstromes in einem Kanal
EP0893651B1 (de) Brenner für flüssigen und gasförmigen Brennstoff mit niedriger Stickoxidemission
FR2804497A1 (fr) Bruleur aero-oxy-gaz a flamme stabilisee, et bloc-ouvreau equipe d'un tel bruleur
FR2772888A1 (fr) Amelioration aux bruleurs a combustible solide
EP1980788B1 (de) Brenner für gasförmigen Kraftstoff
FR2570473A1 (fr) Perfectionnements aux bruleurs a gaz a ecoulement parallele comportant une rosace et un moyeu d'accrochage de flamme concernant les bruleurs a gaz et l'alimentation independante en air central
EP0368829B1 (de) Brenner für festen Brennstoff
FR2749927A1 (fr) Bruleur a faible niveau d'emission de composes polluants
CA2987532A1 (fr) Four a injection sonique
EP3234462B1 (de) Vorrichtung zur verbrennung mit einer sogenannten cool-wall-brennkammer, kessel und ofen mit solch einer vorrichtung
EP0978685A1 (de) Verbesserung an Brennern mit Abgasrückführung und niedrigem Stickoxydausstoss
EP0967437A1 (de) Verbesserung an Verbrennungsgeräten mit mehreren Verbrennungsluftzufuhrkanälen
EP0660039A1 (de) Brennerkopf für Gasbrenner, Brenner versehen mit einem solchen Kopf und Verbrennungsverfahren
BE521180A (de)
FR2877074A1 (fr) Dispositif de combustion pour ensemble comprenant une turbine a gaz et une chaudiere a recuperation
FR2564181A1 (fr) Bruleur pour foyer a grande souplesse de fonctionnement

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): DE ES GB IT NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010720

AKX Designation fees paid

Free format text: DE ES GB IT NL

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT NL

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: 20041124

Ref country code: GB

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: 20041124

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 60016106

Country of ref document: DE

Date of ref document: 20041230

Kind code of ref document: P

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

Ref country code: ES

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

Effective date: 20050306

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20041124

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: 20050825

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

Ref country code: IT

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

Effective date: 20090727

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

Ref country code: IT

Payment date: 20090728

Year of fee payment: 10

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110616

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110616

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60016106

Country of ref document: DE

Representative=s name: RAUSCH WANISCHECK-BERGMANN BRINKMANN PARTNERSC, DE

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

Ref country code: DE

Payment date: 20190620

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 60016106

Country of ref document: DE