EP0896192A2 - Dispositif d'admission du gaz combustible pour un brûleur à prémélange - Google Patents

Dispositif d'admission du gaz combustible pour un brûleur à prémélange Download PDF

Info

Publication number
EP0896192A2
EP0896192A2 EP98112692A EP98112692A EP0896192A2 EP 0896192 A2 EP0896192 A2 EP 0896192A2 EP 98112692 A EP98112692 A EP 98112692A EP 98112692 A EP98112692 A EP 98112692A EP 0896192 A2 EP0896192 A2 EP 0896192A2
Authority
EP
European Patent Office
Prior art keywords
fuel gas
inflow opening
air
swirl
venturi tube
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.)
Withdrawn
Application number
EP98112692A
Other languages
German (de)
English (en)
Other versions
EP0896192A3 (fr
Inventor
Johann Moses
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.)
Karl Dungs GmbH and Co KG
Original Assignee
Karl Dungs GmbH and Co KG
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 Karl Dungs GmbH and Co KG filed Critical Karl Dungs GmbH and Co KG
Publication of EP0896192A2 publication Critical patent/EP0896192A2/fr
Publication of EP0896192A3 publication Critical patent/EP0896192A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • F23L5/00—Blast-producing apparatus before the fire
    • F23L5/02—Arrangements of fans or blowers
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors

Definitions

  • the invention relates to a device for initiating Fuel gas in an air stream, especially for a gas premix burner, with a venturi tube pointing towards its Air flows through the pipe axis, and with at least one in the venturi leading inlet opening for the Fuel gas.
  • the introduction of the fuel gas into the Air flow occurs approximately in the area of the narrowest cross section of the Venturi tube via a coaxial to the tube axis of the venturi arranged annular inflow opening.
  • the from this annular inflow opening in the shape of a jacket around the Air gas escaping around the air stream essentially flows without mixing with the air flow on the diffuser wall of the Venturi tubes along.
  • the actual mixing between Fuel gas and air only take place in a downstream of the Inflow opening or the venturi arranged fan.
  • the present invention has the object based on an introduction device of the aforementioned Kind in such a way that a faster expansion of the diffuser or the Venturi tube is possible.
  • this object is achieved by a swirl generation device, the at least the one immediately downstream the mixture flowing at least one inflow opening from air and fuel gas directed around the pipe axis Twist impresses.
  • the at least one inflow opening provided that diagonally to the pipe axis in the direction of the inner wall of the venturi is directed.
  • the mixture can flow at least downstream a slight swirl offset an inflow opening become.
  • a negative pressure can be generated at the inflow opening, through which the fuel gas is sucked into the Venturi tube.
  • the at least one inflow opening transverse to Pipe axis in the direction of the inner wall of the Venturi tube is directed. If necessary, the fuel gas flows in a certain pressure from the inflow opening.
  • At least one inflow opening surrounding the air flow Ring opening is in advantageous developments.
  • Fuel gas can e.g. due to one of the air already upstream of the swirl imposed likewise to be in a swirl.
  • At least one guide surface inside the ring opening can also impart a swirl to the outflowing fuel gas become.
  • the at least one guide surface can e.g. one between the two peripheral walls forming the ring opening provided guide vane.
  • a twist generating at least one inflow opening is through an inflow pipe terminating within the venturi tube is formed.
  • This development has the advantage that the outflow direction the fuel gas from the inflow pipe as desired can be adjusted.
  • one forms in the Venturi tube protruding inflow pipe a flow chicane, which leads to eddies in the flow and thus to a contributes to better mixing of fuel gas and air.
  • the swirl generator upstream of the Inflow opening provided for generating a swirl in the air.
  • This swirl also creates a swirl downstream Mixture of fuel gas and air, the swirl effect e.g. due to a slightly tangential inflow of Fuel gas can be further amplified.
  • At least one guide surface is provided for the air is.
  • one or more vanes are provided for the air be.
  • the at least downstream an inflow opening provided a radial fan is.
  • the swirl of the mixture can flow to the radial fan be used to advantage. With counter-swirl flow a particularly high fan performance can be achieved, while a particularly low-loss in the case of constant swirl flow
  • the mixture can enter the radial fan is.
  • the inflow opening in the lies essentially centrally in the tube axis the lower pressure in the center of the circular flow is used become.
  • FIG. 1 shows a gas premix burner with a gas boiler 1 and with a blower 2 , which is driven by a blower motor 3 and supplies an air / fuel gas mixture 4 to the gas boiler 1.
  • the blower 2 is preceded by an introduction device 10 , in which fuel gas 5 is mixed with the air 6 sucked in by the blower 2.
  • the introduction device 10 comprises a Venturi tube (Venturi nozzle or channel) 11 in which the air 6 is temporarily accelerated to a high speed.
  • the fuel gas 5, which flows into the venturi tube 11, is sucked in through this air stream via an inflow opening 12 arranged in the region of the narrowest cross section of the venturi tube 11.
  • the supply of the fuel gas 5 is regulated by means of a gas zero pressure regulator 7 .
  • a swirl 15 directed about the pipe axis 14 is impressed on the mixture 4 flowing in the diffuser 13 of the venturi 11, so that a separation of the flow of the mixture 4 from the inner wall of the diffuser 13 is delayed or completely prevented.
  • the swirl 15 can be generated either by a swirl impressed on the air 6 upstream of the inflow opening 12 or by a swirl impressed on the mixture 4 only downstream of the inflow opening 12.
  • a first exemplary embodiment of an introduction device 10 in which the fuel gas 5 is introduced into the Venturi tube 11 via an inflow pipe 16 .
  • the inflow pipe 16 is oriented obliquely to the pipe axis 14 on the inner wall of the venturi 11, so that the mixture 4 downstream of the inflow opening 12a of the inflow pipe 16 through the air 6 flowing in the direction of the pipe axis 14 and the fuel gas 5 flowing slightly tangentially into the venturi 11 Flows through diffuser 13 with a swirl 15.
  • the inflow tube 16 is directed transversely to the tube axis 14 onto the inner wall of the venturi tube 11, so that the air 4 flowing in the direction of the tube axis 14 and the fuel gas 5 flowing transversely into the venturi tube 11 cause the mixture 4 downstream of the inflow opening 12b receives a swirl 15 in total in the diffuser 13.
  • a swirl 17 is imparted to the air 6 before or during its entry into the venturi 11, which then continues as a swirl 15 of the mixture 4 within the diffuser 13.
  • the fuel gas 5 flows from the inflow opening 12c parallel to the pipe axis 14 into the venturi tube 11.
  • the fuel gas 5 ' is introduced into the Venturi tube 11' via an annular inflow opening 12 ' .
  • a swirl to the air 6 ' upstream of the inflow opening 12' and / or by imparting a swirl to the fuel gas 5 ', as shown in FIG. 5, as it flows out of the annular inflow opening 12', this leads within the diffuser 13 ' to a swirl 15' of the mixture 4 'of air 6' and fuel gas 5 '.
  • a device (10) for introducing fuel gas (5) into an air flow, especially for a gas premix burner with a Venturi tube (11) which is in the direction of its tube axis (14) of air (6) flows through, and with at least one in the Venturi tube (11) leading inflow opening (12) for the fuel gas (5) is provided with a swirl generating device, the at least that immediately downstream of the at least an inflow opening (12) flowing mixture (4) Air (6) and fuel gas (5) directed around the pipe axis (14) Imprints (15).
  • This is a better and longer application of the mixture to the diffuser and thus one faster expansion of the diffuser or Venturi tube possible.
  • the swirl of the flow continues to cause the air and the fuel gas are already in the diffuser mix better.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP98112692A 1997-08-05 1998-07-09 Dispositif d'admission du gaz combustible pour un brûleur à prémélange Withdrawn EP0896192A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19733767 1997-08-05
DE1997133767 DE19733767A1 (de) 1997-08-05 1997-08-05 Brenngas-Einleitungsvorrichtung für einen Gas-Vormischbrenner

Publications (2)

Publication Number Publication Date
EP0896192A2 true EP0896192A2 (fr) 1999-02-10
EP0896192A3 EP0896192A3 (fr) 1999-11-10

Family

ID=7838001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112692A Withdrawn EP0896192A3 (fr) 1997-08-05 1998-07-09 Dispositif d'admission du gaz combustible pour un brûleur à prémélange

Country Status (2)

Country Link
EP (1) EP0896192A3 (fr)
DE (1) DE19733767A1 (fr)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001018451A1 (fr) * 1999-09-06 2001-03-15 Shell Internationale Research Maatschappij B.V. Dispositif melangeur
WO2002029319A1 (fr) * 2000-10-03 2002-04-11 Sit La Precisa S.P.A. Melangeur air-gaz ameliore
WO2002077526A1 (fr) * 2001-03-23 2002-10-03 Sit La Precisa S.P.A. Systeme de connexion d'un dispositif de melange air-gaz a un ventilateur notamment pour chaudieres a gaz et appareil similaire
US7108838B2 (en) 2003-10-30 2006-09-19 Conocophillips Company Feed mixer for a partial oxidation reactor
EP1912021A1 (fr) 2006-10-06 2008-04-16 Jakob Hermann Chambre de combustion pourvue d'un brûleur
EP1921377A2 (fr) * 2006-11-10 2008-05-14 General Electric Company Jet à fente pour l'injection de carburant à haute expansion et procédé d'amélioration du mélange dans les dispositifs de prémélange
WO2012006166A3 (fr) * 2010-06-29 2012-12-06 A.O. Smith Corporation Ensemble soufflante destiné à être utilisé avec un appareil alimenté au gaz
WO2012123207A3 (fr) * 2011-03-15 2013-12-12 Ebm-Papst Landshut Gmbh Dispositif de mélange pour mélanger de l'air de combustion et du gaz pour un appareil à gaz
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
EP2843308A4 (fr) * 2012-04-23 2016-02-10 Kyungdong Navien Co Ltd Dispositif de combustion permettant l'amélioration de la marge de réglage
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
EP3415817A1 (fr) * 2017-06-14 2018-12-19 Honeywell Technologies Sarl Dispositif de mélange gaz/air destiné à un brûleur à gaz
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
DE102005039117B4 (de) * 2005-08-18 2021-01-28 IfTA Ingenieurbüro für Thermoakustik GmbH Mit einem Brenner versehene Verbrennungskammer
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
USD960321S1 (en) 2019-06-11 2022-08-09 Karl Dungs Gmbh & Co. Kg Venturi signal amplifier
EP3980689A4 (fr) * 2019-07-10 2023-03-22 Femas Metal San. Ve Tic. A.S. Ensemble brûleur ayant un élément venturi amélioré

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1874970A (en) * 1931-04-03 1932-08-30 Columbia Burner Company Gas burner spud
GB846237A (en) * 1958-02-13 1960-08-31 Nassheuer Jean Improvements in or relating to jet type burners
SU343111A1 (ru) * 1970-09-25 1972-06-22 А. И. Ващенко, М. И. Топтыгин, А. И. Либерман, Г. П. Денисов, В. Г. Скудин , В. Л. Гусовский Радиационная газовая горелка
GB1469097A (en) * 1973-03-21 1977-03-30 Domestic Appliances Ltd T Fluid mixer devices
GB1499213A (en) * 1976-01-22 1978-01-25 Trapp C Gas burners
US4419074A (en) * 1981-09-11 1983-12-06 Advanced Mechanical Technology, Inc. High efficiency gas burner
CZ278788B6 (en) * 1992-10-09 1994-06-15 Hynek Mikusek Combustion system of heating gas condensation sets
DE29617621U1 (de) * 1995-11-14 1997-08-28 Honeywell B.V., Amsterdam Mischvorrichtung mit Venturi-Düse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FIRMA HONEYWELL, FLAME SPECIAL ISH EDITION, no. 2, 1 January 1997 (1997-01-01)

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001018451A1 (fr) * 1999-09-06 2001-03-15 Shell Internationale Research Maatschappij B.V. Dispositif melangeur
US7018435B1 (en) 1999-09-06 2006-03-28 Shell Oil Company Mixing device
WO2002029319A1 (fr) * 2000-10-03 2002-04-11 Sit La Precisa S.P.A. Melangeur air-gaz ameliore
WO2002077526A1 (fr) * 2001-03-23 2002-10-03 Sit La Precisa S.P.A. Systeme de connexion d'un dispositif de melange air-gaz a un ventilateur notamment pour chaudieres a gaz et appareil similaire
US7108838B2 (en) 2003-10-30 2006-09-19 Conocophillips Company Feed mixer for a partial oxidation reactor
DE102005039117B4 (de) * 2005-08-18 2021-01-28 IfTA Ingenieurbüro für Thermoakustik GmbH Mit einem Brenner versehene Verbrennungskammer
EP1912021A1 (fr) 2006-10-06 2008-04-16 Jakob Hermann Chambre de combustion pourvue d'un brûleur
EP1921377A2 (fr) * 2006-11-10 2008-05-14 General Electric Company Jet à fente pour l'injection de carburant à haute expansion et procédé d'amélioration du mélange dans les dispositifs de prémélange
EP1921377A3 (fr) * 2006-11-10 2013-12-25 General Electric Company Jet à fente pour l'injection de carburant à haute expansion et procédé d'amélioration du mélange dans les dispositifs de prémélange
WO2012006166A3 (fr) * 2010-06-29 2012-12-06 A.O. Smith Corporation Ensemble soufflante destiné à être utilisé avec un appareil alimenté au gaz
WO2012123207A3 (fr) * 2011-03-15 2013-12-12 Ebm-Papst Landshut Gmbh Dispositif de mélange pour mélanger de l'air de combustion et du gaz pour un appareil à gaz
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
EP2843308A4 (fr) * 2012-04-23 2016-02-10 Kyungdong Navien Co Ltd Dispositif de combustion permettant l'amélioration de la marge de réglage
US9970654B2 (en) 2012-04-23 2018-05-15 Kyungdong Navien Co., Ltd Combustion device for improving turndown ratio
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9234661B2 (en) 2012-09-15 2016-01-12 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US10215291B2 (en) 2013-10-29 2019-02-26 Honeywell International Inc. Regulating device
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
EP3415817A1 (fr) * 2017-06-14 2018-12-19 Honeywell Technologies Sarl Dispositif de mélange gaz/air destiné à un brûleur à gaz
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
USD960321S1 (en) 2019-06-11 2022-08-09 Karl Dungs Gmbh & Co. Kg Venturi signal amplifier
EP3980689A4 (fr) * 2019-07-10 2023-03-22 Femas Metal San. Ve Tic. A.S. Ensemble brûleur ayant un élément venturi amélioré

Also Published As

Publication number Publication date
DE19733767A1 (de) 1999-02-11
EP0896192A3 (fr) 1999-11-10

Similar Documents

Publication Publication Date Title
EP0896192A2 (fr) Dispositif d'admission du gaz combustible pour un brûleur à prémélange
EP0896191B1 (fr) Dispositif d'admission de gaz combustible pour un brûleur à prémélange
EP2179222B1 (fr) Brûleur pour une chambre de combustion d'un turbogroupe
EP0781967B1 (fr) Chambre de combustion annulaire pour turbine à gaz
DE60007946T2 (de) Eine Brennkammer
EP0918191B1 (fr) Brûleur pour la mise en oeuvre d'un générateur de chaleur
EP2577071B1 (fr) Canal à surface de guidage d'écoulement
DE2143012A1 (de) Brennersysteme
EP0433790A1 (fr) BrÀ»leur
DE602004005572T2 (de) Mischer
DE102011012039A1 (de) Kanal mit Strömungsleitfläche
DE19733768C2 (de) Brenngas-Einleitungsvorrichtung für einen Gas-Vormischbrenner
DE102010024091A1 (de) Mischer und Strömungsleitgitter
EP0742411A2 (fr) Alimentation en air pour une chambre de combustion à prémélange
DE4306417A1 (de) Vorrichtung und Verfahren zum Verbrennen oxidierbarer Bestandteile in einem zu reinigenden Trägergas
EP1847682A1 (fr) Méthode d'alimentation d'un fluide dans le flux principal de gaz d'une turbine et aube de turbine associée.
CH661974A5 (de) Gasturbinen-brenner.
EP4089325B1 (fr) Buse d'injection de gaz dans une installation de combustion dotée d'un tube et d'un générateur tourbillons, conduit de gaz de fumée doté d'une telle buse et procédé d'utilisation d'une telle buse
DE1650079A1 (de) Vorrichtung zur Verbesserung des Wirkungsgrades von stark erweiterten Diffusoren
DE202022104142U1 (de) Vorrichtung zur Verwirbelung einer Flüssigkeit
DE4329236C1 (de) Verfahren zum Betrieb eines Ejektor-Stufenluft-Wirbelbrenners für eine Kohlenstaubfeuerung und Ejektor-Stufenluft-Wirbelbrenner
DE102022106814A1 (de) Jet-Brennervorrichtung
EP0115858A1 (fr) Brûleur à monter dans les installations de chauffage et de production de vapeur
AT238355B (de) Vorrichtung zur Brennluftförderung in einem Gebläsebrenner für Gase, Flüssigkeiten oder Staube
DE1457146B2 (de) Vorrichtung zum Mischen von mindestens zwei strömungsfähigen Medien

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

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

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

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

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000511