EP0865589B1 - Fuel atomiser - Google Patents
Fuel atomiser Download PDFInfo
- Publication number
- EP0865589B1 EP0865589B1 EP96939038A EP96939038A EP0865589B1 EP 0865589 B1 EP0865589 B1 EP 0865589B1 EP 96939038 A EP96939038 A EP 96939038A EP 96939038 A EP96939038 A EP 96939038A EP 0865589 B1 EP0865589 B1 EP 0865589B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- atomizing medium
- supply line
- flow direction
- main flow
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
- F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber
- F23D11/103—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber with means creating a swirl inside the mixing chamber
Abstract
Description
Die vorliegende Erfindung betrifft einen Brennstoffzerstäuber gemäß Anspruch 1, der vorzugsweise
im Bereich der Hochtemperaturfeuerung und dabei insbesondere bei der Beheizung
von Glasschmelzwannen eingesetzt und der mittels einer Brennstoff- und Zerstäubermedium-Zuführleitung
insbesondere mit Schweröl als Brennstoff und mit Druckluft als Zerstäubermedium
betrieben und aus dessen Austrittsöffnung ein Gemisch von Brennstoff und Zerstäubermedium
abgestrahlt wird.The present invention relates to a fuel atomizer according to
Aus Patent Abstracts of Japan Nr. 375 (M545) ist ein Brennstoffzerstäuber, der einen ,atomizer chip 5' mit einer zur Hauptachse geneigten ,cone surface 13', die die Form eines kegelstumpfförmigen Zahnrades aufweist, bekannt. Die auf der ,cone surface 13' kreisbogenförmig verlaufenden Zahnungen bilden entsprechende Nuten. Der Brennstoff ,1' wird über einen Kanal ,2' in ein Zerstäubermedium ,7' eingebracht. Das Brennstoff/Zerstäubermedium-Gemisch strömt dann im Kanal ,7' in einer koaxial zum Brennstoffkanal ,1' verlaufenden Hauptströmungsrichtung und wird durch den oben beschriebenen Drallkörper in eine, gegenüber der Hauptströmungsrichtung nach innen (zur Mittelachse) geneigten, Strömungsrichtung gebracht. Durch die auf der ,cone surface 13' befindlichen Zahnung erhält das Brennstoff/Zerstäubermedium-Gemisch einen Drall.From Patent Abstracts of Japan No. 375 (M545) a fuel atomizer is known which has an 'atomizer chip 5' with a cone surface 13 'inclined to the main axis and which has the shape of a truncated cone-shaped gear. The serrations running in a circular arc on the ' cone surface 13' form corresponding grooves. The fuel, 1 'is introduced into an atomizing medium, 7' via a channel, 2 '. The fuel / atomizing medium mixture then flows in the channel 7 'in a main flow direction coaxial with the fuel channel 1' and is brought by the swirl body described above into a flow direction which is inclined inwards (to the central axis) with respect to the main flow direction. The toothing on the 'cone surface 13' gives the fuel / atomizing medium mixture a swirl.
Aus DE 24 31 573 A ist ein Brennstoffzerstäuber mit einem Körper bekannt, in welchem eine Brennstoff-Zuführung ,23' und eine Zerstäubermedium Zuführung ,28' ausgebildet sind, um einen Brennstoff und ein Zerstäubermedium in Hauptströmungsrichtung zu leiten, wobei die Zerstäubermedium-Zuführung unter Bildung eines Winkels unmittelbar vor der drallgebenden Nut ,39' in die Brennstoff-Zuführung mündet und mit einem zylindrisch ausgebildeten Drallkörper, der eine spiralförmig steigende Nut ,39' aufweist, die dem Brennstoff/Zerstäubermedium-Gemisch einen zur Hauptströmungsrichtung tangential gerichteten Impuls verleiht.From DE 24 31 573 A a fuel atomizer with a body is known in which one Fuel feed, 23 'and an atomizing medium feed, 28' are formed to to conduct a fuel and an atomizing medium in the main flow direction, the Atomizing medium supply at an angle immediately before the swirling Groove, 39 'opens into the fuel supply and with a cylindrical swirl body, which has a spirally rising groove 39 'that corresponds to the fuel / atomizing medium mixture one directed tangentially to the main flow direction Gives impetus.
Es ist bekannt, dass insbesondere bei der Beheizung von Glasschmelzwannen die Brennstoffzerstäubung durch einen um den axial austretenden, vorwiegend aus Schweröl bestehender Brennstoffstrahl konzentrisch angeordneten Strahl des Zerstäubermediums, welcher mit einem zur Hauptströmungsrichtung liegenden tangentialen Impuls beaufschlagt ist, erfolgt und dadurch der Brennstoff nicht nur zerstäubt sondern auch mit Sauerstoff angereichert wird. Das Zerstäubermedium trifft vorwiegend erst kurz vor dem Düsenaustritt auf den Brennstoffstrahl, so dass die Vermischung von Brennstoff und Zerstäubermedium hauptsächlich nach dem Austritt aus dem Brennstoffzerstäuber - also erst innerhalb des Brennraumes - erfolgt. Insbesondere bei der Herstellung von Glasschmelzen sind hohe Temperaturen - insbesondere in der Flammenwurzel - notwendig. Die Temperatur in der Flammenwurzel ist erheblich von der dort enthaltenen Sauerstoffmenge abhängig. Zum Erreichen der erforderlichen hohen Flammenwurzeltemperatur reicht der im Brennraum enthaltene Sauerstoff nicht aus, so dass es notwendig ist, den Brennstoff bereits beim Austritt aus der Zerstäuberdüse mit Sauerstoff anzureichern, wodurch die im folgenden beschriebene NOx-Bildung unterstützt wird. Grundsätzlich entsteht bei allen Verbrennungen Stickstoffoxid, jedoch ist die Bildung von den jeweiligen Prozessbedingungen abhängig. Bei allen Hochtemperaturfeuerungen - insbesondere bei Temperaturen über 1200°C - entsteht das thermische NO aus dem N2 der Verbrennungsluft. Der im Brennstoff enthaltene Stickstoffanteil bewirkt vornehmlich in der Flammenwurzel eine anteilige NO-Bildung, die in der Oxidationszone der Flamme und in der Nachreaktionszone durch anwesende Reaktionshilfen wie CH, CH2, CH3, H2O und OH unterstützt wird. Die teilweise Aufoxidierung des NO zu NO2 erfolgt im Abgasstrom bis zur Abkühlung der Rauchgase auf unter 600 °C.It is known that, in particular in the heating of glass melting tanks, the fuel atomization takes place by means of a jet of the atomizing medium which is concentrically arranged around the axially emerging fuel jet, which mainly consists of heavy oil and which is acted upon by a tangential pulse lying in the direction of the main flow, and thereby not only atomizes the fuel but is also enriched with oxygen. The atomizing medium predominantly only hits the fuel jet shortly before the nozzle exits, so that the fuel and atomizing medium are mixed mainly after exiting the fuel atomizer - that is, only within the combustion chamber. Especially in the production of glass melts, high temperatures - especially in the flame root - are necessary. The temperature in the flame root is significantly dependent on the amount of oxygen it contains. The oxygen contained in the combustion chamber is not sufficient to achieve the required high flame root temperature, so that it is necessary to enrich the fuel with oxygen as it emerges from the atomizer nozzle, which supports the NO x formation described below. In principle, nitrogen oxide is generated in all burns, but the formation depends on the respective process conditions. With all high-temperature furnaces - especially at temperatures above 1200 ° C - the thermal NO arises from the N 2 of the combustion air. The nitrogen content in the fuel mainly causes a partial formation of NO in the flame root, which is supported in the oxidation zone of the flame and in the post-reaction zone by the presence of reaction aids such as CH, CH 2 , CH 3 , H 2 O and OH. The partial oxidation of NO to NO 2 takes place in the exhaust gas stream until the flue gases cool to below 600 ° C.
Aufgabe der Erfindung ist die Schaffung eines Brennstoffzerstäubers, der insbesondere bei der Hochtemperaturfeuerung hohe Flammenwurzeltemperaturen mit einer gegenüber den bekannten Zerstäubungsvorrichtungen reduzierten NOx-Emission und zudem eine Anpassung der Flammenform an die Brennraumgeometrie ermöglicht.The object of the invention is to provide a fuel atomizer which, particularly in high-temperature firing, enables high flame root temperatures with a reduced NO x emission compared to the known atomizing devices and also enables the flame shape to be adapted to the combustion chamber geometry.
Diese Aufgabe wird durch einem Brennstoffzerstäuber gelöst, der die Merkmale des Anspruchs 1 aufweist. This object is achieved by a fuel atomizer, which has the features of
Eine Anpassung der Flammengeometrie an den Brennraum ist durch Variation des Steigungswinkels der auf dem Drallkörper aufgebrachten Nuten möglich, da mit steigendem tangentialen Impuls des Brennstoffgemisches die Flammenlänge ab- und gleichzeitig der Flammendurchmesser zunimmt. Nach VDI-Bericht Nr. 211, 1974, Seite 60, beträgt der Öffnungswinkel einer Freistrahlflamme etwa 20° und kann mit einem starken tangentialen Impuls bis auf 180°, bei gleichzeitig verkürzter Flammenlänge vergrößert werden. Die Flammenlänge kann zudem bei gleichbleibenden Massenströmen durch Variation der Austrittsöffnung bzw. durch eine Veränderung der freien Strömungsfläche (Summe alle Nutenquerschnittsflächen) innerhalb des Drallkörpers an die Brennraumgeometrie angepasst werden. Eine Ausführungsform der vorliegenden Erfindung ist in den Zeichnungen dargestellt.The flame geometry can be adapted to the combustion chamber by varying the pitch angle of the grooves on the swirl body possible, since with increasing tangential momentum of the fuel mixture the flame length and at the same time the Flame diameter increases. According to VDI report No. 211, 1974, page 60, the opening angle is a free jet flame about 20 ° and can with a strong tangential impulse can be enlarged up to 180 ° with a shortened flame length. The flame length can also with constant mass flows by varying the outlet opening or by changing the free flow area (sum of all groove cross-sectional areas) can be adapted to the combustion chamber geometry within the swirl body. An embodiment the present invention is illustrated in the drawings.
Es zeigt:
- Fig.1:
- eine mögliche Ausführungsform des erfindungsgemäßen Brennstoffzerstäubers;
- Fig.2-8:
- mögliche Ausführungsformen des erfindungsgemäßen Brennstoffzerstäubers gemäß Fig. 1 mit unterschiedlich gestalteten Austrittsöffnungen;
- Fig.1:
- a possible embodiment of the fuel atomizer according to the invention;
- Fig.2-8:
- possible embodiments of the fuel atomizer according to the invention according to FIG. 1 with differently designed outlet openings;
In einem in Fig.1 dargestellten, auf die Brennstoffzufuhrleitung aufgesteckten und aus drei Bauteilen (2), (5) und (13) bestehenden Brennstoffzerstäuber wird der Brennstoff - vorzugsweise Schweröl - über die Brennstoffzuleitung (10), in der nicht dargestellte Ventile vorgesehen sind und die an einer ebenfalls nicht dargestellten Ölpumpe angeschlossen ist, mit einem einstellbaren, durch Vorheizung pumpfähigen Massenstrom von Schweröl versorgt. Auf die konzentrisch zu der Brennstoffzuleitung (10) angeordnete Zerstäubermediumzufuhrleitung (11) wird die Brennerkappe (13) aufgeschraubt. Mit der Brennerkappe (13) wird Bauteil (5) entgegen der Hauptströmungsrichtung auf das mit einer Dichtung versehene Bauteil (2) gepresst, das auf die Brennstoffzufuhrleitung (10) aufgesteckt ist. Zwischen Bauteil (5) und der Brennerkappe (13) befindet sich keine Austrittsöffnung, so dass das Zerstäubermedium an der Innenseite der Brennerkappe (13) geführt wird, bevor es durch mindestens eine im Bauteil (5) eingebrachte Bohrung (12) entgegen der Hauptströmungsrichtung umgelenkt und anschließend in dem zwischen Bauteil (2) und (5) befindlichen - vorzugsweise halbkreisförmigen Spalt (7) - zum Zentrum geleitet und somit wieder in Hauptströmungsrichtung umgelenkt wird.In one shown in Figure 1, plugged onto the fuel supply line and from three Components (2), (5) and (13) existing fuel atomizers, the fuel is - preferably Heavy oil - via the fuel supply line (10), provided in the valves, not shown are and which is connected to an oil pump, also not shown, with a adjustable mass flow of heavy oil supplied by preheating. On the Atomizer medium supply line arranged concentrically to the fuel supply line (10) (11) the burner cap (13) is screwed on. The burner cap (13) becomes a component (5) against the main flow direction on the one provided with a seal Component (2) pressed, which is attached to the fuel supply line (10). Between component (5) and the burner cap (13) there is no outlet opening, so that the atomizing medium on the inside of the burner cap (13) before it is passed through at least a bore (12) made in the component (5) is deflected counter to the main flow direction and then in the one between component (2) and (5) - preferably semicircular gap (7) - directed to the center and thus again in the main flow direction is redirected.
Die Führung des Zerstäubermediums entlang der Brennerkappe (13) und durch die im Bauteil (5) eingebrachten Bohrungen (12) bewirken eine Kühlung der eingesetzten Bauteile (2) und (5) sowie der Brennerkappe (13), wenn die Temperatur des Zerstäubermediums unterhalb der bei der Verbrennung entstehenden Umgebungstemperatur liegt. Durch mindestens eine im Bauteil (2) eingebrachte Bohrung (6) wird der Brennstoff vorzugsweise in einem rechten Winkel zur Hauptströmungsrichtung vom Zentrum hin nach außen auf die dem Zentrum zugewandte Seite von Bauteil (5) geführt. Das aus dem Spalt (7) austretende Zerstäubermedium trifft unter einem Winkel - vorzugsweise dem rechten Winkel - auf den Brennstoff. Das Zusammentreffen von Zerstäubermedium und Brennstoff erfolgt unmittelbar vor mindestens einer spiralförmigen auf einem zylindrischen Drallkörper (9) angeordneten Nut (3), die mit einer Steigung größer null und kleiner unendlich versehen ist. Im Drallkörper (9) wird das Gemisch aus Brennstoff und Zerstäubermedium mit einem tangential zur Hauptströmungsrichtung liegenden Impuls beaufschlagt. Eine Veränderung des tangentialen Impulses ermöglicht eine Variation des Flammendurchmessers, gleichzeitig kann mit unterschiedlichen Ausführungsformen des stromauf des Drallkörpers gelegenen Raumes (z.B. Laval-Düse (1), Diffusor (16), Düse (15) oder ein nicht bis zur Austrittsöffnung reichender Drallkörper (9) mit einem gegenüber dem Außendurchmesser des Drallkörpers verkleinerten- (18), vergrößerten-(17) oder gleichen Austrittsdurchmesser (14)) der axiale Impuls des Brennstoffstrahls und somit auch die Flammenlänge beeinflusst werden.The guidance of the atomizing medium along the burner cap (13) and through that in the component (5) bores (12) bring about cooling of the components used (2) and (5) and the burner cap (13) when the temperature of the atomizing medium is below the ambient temperature arising during combustion. By at least one in Component (2) introduced bore (6), the fuel is preferably in a right Angle to the main flow direction from the center outwards to that of the center facing side of component (5). The atomizing medium emerging from the gap (7) hits the fuel at an angle - preferably the right angle. The The atomizing medium and fuel meet at least immediately before a spiral on a cylindrical swirl body (9) arranged groove (3) with an incline greater than zero and less than infinity. In the swirl body (9) Mixture of fuel and atomizing medium with a tangential to the main flow direction applied impulse. A change in the tangential impulse enables a variation of the flame diameter, at the same time with different Embodiments of the space located upstream of the swirl body (e.g. Laval nozzle (1), Diffuser (16), nozzle (15) or a swirl body (9) not reaching to the outlet opening a smaller (18), larger (17) compared to the outer diameter of the swirl body or the same outlet diameter (14)) the axial pulse of the fuel jet and thus the flame length can also be influenced.
Bei der Verbrennung erreicht das austretende Gemisch durch eine verbesserte Vermischung von Brennstoff und Zerstäubermedium die bei der Verbrennung erforderliche Flammentemperatur - insbesondere in der Flammenwurzel - bereits mit deutlich reduzierten Sauerstoffanteilen, wodurch die verminderte NOx-Emission ermöglicht wird. Eine Anpassung der Flammenform an die Brennraumgeometrie erfolgt durch Variation des tangential zur Hauptströmungsrichtung liegenden Impulses, der vom Steigungswinkel der auf dem Drallkörper befindlichen Nut bestimmt wird. Unterschiedliche Bauformen des stromauf vom Drallkörper gelegenen Raumes ermöglichen eine Anpassung der Flammenlänge durch Variation des axialen Brennstoffstrahlimpulses ebenso wie ein durch die Austrittsöffnung in den Brennraum hineinragender Drallkörper.During combustion, the exiting mixture already achieves the flame temperature required for the combustion - in particular in the flame root - with significantly reduced oxygen components due to an improved mixing of fuel and atomizing medium, which enables the reduced NO x emission. The flame shape is adapted to the combustion chamber geometry by varying the pulse lying tangential to the main flow direction, which is determined by the pitch angle of the groove on the swirl body. Different designs of the space located upstream from the swirl body enable the flame length to be adjusted by varying the axial fuel jet pulse, as is a swirl body projecting through the outlet opening into the combustion chamber.
Claims (7)
- A fuel atomizer with a body in which a fuel supply line and an atomizing medium supply line are arranged in order to guide the fuel and the atomizing medium in a main flow direction, wherein the atomizing medium supply line runs into the fuel supply line at a certain angle, and with a spin body with a spiral flute (3) that causes the fuel/atomizing medium mixture to spin, whereinthe spin body (9) is realized cylindrically, namely such that the spiral flute (3) subjects the fuel/atomizing medium mixture to a tangential impulse referred to the main flow direction;the atomizing medium supply line (4, 7, 11, 12) runs into the fuel supply line (10, 6) directly in front of the spiral flute (3);the spiral flute (3) is realized on the spin body (9) in a helically ascending fashion, andthe atomizing medium supply line (4, 7, 11, 12) is realized in at least one section (12) in such a way that the flow is directed opposite to the main flow direction and the section (12) extends in the burner cap.
- A fuel atomizer according to claim 1, wherein the section (12) of the atomizing medium supply line follows a section (7) that is realized in the shape of a circular arc and meets the fuel supply line (6, 10).
- A fuel atomizer according to one of the preceding claims, wherein the section (6) of the fuel supply line extends at an angle referred to the main flow direction.
- A fuel atomizer according to one of the preceding claims, wherein a section (7) that is designed such that the atomizing medium being introduced into the section (6) of the fuel supply line (6, 10) is directed in the main flow direction follows the section (12) of the atomizing medium supply line which is directed opposite to the main flow direction.
- A fuel atomizer according to one of the preceding claims, wherein the spiral flute (3) on the spin body (9) has a pitch that is greater than zero and less than infinite depending on the type of fuel and the type of atomizing medium and/or on the atomizer capacity and/or on the combustion chamber geometry.
- A fuel atomizer according to one of the preceding claims, wherein a chamber (1, 14, 15, 16, 17, 18) is, viewed in the main flow direction, arranged behind the spiral flute (3) and in front of an outlet opening for discharging the fuel/atomizing medium mixture from the body (2, 5, 13).
- A fuel atomizer according to one of claims 1-6, wherein the spin body (9) protrudes into the combustion chamber from the body (5, 13), namely from the outlet opening for the fuel/atomizing medium mixture.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19542530A DE19542530C2 (en) | 1995-11-15 | 1995-11-15 | Fuel atomizers |
DE19542530 | 1995-11-15 | ||
PCT/EP1996/004991 WO1997018414A1 (en) | 1995-11-15 | 1996-11-14 | Fuel atomiser |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0865589A1 EP0865589A1 (en) | 1998-09-23 |
EP0865589B1 true EP0865589B1 (en) | 2002-01-16 |
Family
ID=7777499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96939038A Expired - Lifetime EP0865589B1 (en) | 1995-11-15 | 1996-11-14 | Fuel atomiser |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0865589B1 (en) |
AT (1) | ATE212114T1 (en) |
DE (2) | DE19542530C2 (en) |
ES (1) | ES2173327T3 (en) |
WO (1) | WO1997018414A1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB516724A (en) * | 1938-05-30 | 1940-01-10 | Garner Submicron Atomizers Ltd | Improvements in or relating to liquid fuel burners or liquid atomisers |
DE1734300U (en) * | 1955-05-05 | 1956-11-22 | Balcke Ag Maschbau | TWO-STAGE OIL DUST BURNER. |
US3880571A (en) * | 1973-07-26 | 1975-04-29 | Trw Inc | Burner assembly for providing reduced emission of air pollutant |
DE3202105C2 (en) * | 1982-01-23 | 1985-08-08 | Karl-Heinz 5600 Wuppertal Frickel | Burners, in particular for glass melting furnaces |
JPS61168711A (en) * | 1985-01-18 | 1986-07-30 | Babcock Hitachi Kk | Two-fluid atomizer nozzle |
DE29518060U1 (en) * | 1995-11-15 | 1996-01-11 | Patz Andreas Dipl Ing | Fuel atomizers |
-
1995
- 1995-11-15 DE DE19542530A patent/DE19542530C2/en not_active Expired - Fee Related
-
1996
- 1996-11-14 AT AT96939038T patent/ATE212114T1/en not_active IP Right Cessation
- 1996-11-14 EP EP96939038A patent/EP0865589B1/en not_active Expired - Lifetime
- 1996-11-14 ES ES96939038T patent/ES2173327T3/en not_active Expired - Lifetime
- 1996-11-14 WO PCT/EP1996/004991 patent/WO1997018414A1/en active IP Right Grant
- 1996-11-14 DE DE59608607T patent/DE59608607D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2173327T3 (en) | 2002-10-16 |
DE59608607D1 (en) | 2002-02-21 |
DE19542530C2 (en) | 1998-08-27 |
ATE212114T1 (en) | 2002-02-15 |
WO1997018414A1 (en) | 1997-05-22 |
EP0865589A1 (en) | 1998-09-23 |
DE19542530A1 (en) | 1997-05-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3706234C2 (en) | ||
EP0902233B1 (en) | Combined pressurised atomising nozzle | |
EP0367280B2 (en) | Particle filter system | |
EP0933593B1 (en) | Dual fuel burner | |
DE102006007087B4 (en) | A gas turbine combustor | |
DE2641685A1 (en) | LOW PRESSURE FUEL INJECTION SPRAY SYSTEM | |
EP1213541B1 (en) | Premix burner with catalytic combustion and method of operating | |
DE2727795A1 (en) | COMBUSTION CHAMBER FOR A GAS TURBINE | |
DE2659089C3 (en) | Burners, in particular for liquid fuels | |
DE19738054C2 (en) | Method and device for changing the swirl number of the combustion air of a burner during operation | |
DE2308470C3 (en) | Flat flame burners for a heavy liquid fuel | |
EP0865589B1 (en) | Fuel atomiser | |
EP1752633B1 (en) | Device for generating a hot gas in an exhaust system of a combustion engine | |
DE3424031A1 (en) | METHOD FOR BURNING A LIQUID OR SOLID, POWDERED FUEL | |
DE19535370B4 (en) | Process for low-emission premix combustion in gas turbine combustion chambers | |
EP0573028B1 (en) | Combustion chamber, particularly for regenerating the particle filter in a motor vehicle exhaust device | |
DE4325906C2 (en) | Device for the regeneration of a particle filter used in the exhaust tract of an internal combustion engine | |
DE3038063C2 (en) | Oil burner | |
EP0209631B1 (en) | Process and burner for combusting liquid fuel | |
DE4213518A1 (en) | Liquid-fuel nozzle with coaxial fuel and air pipes - has annular non-throttling fuel outlet and annular air outlet with throttling effect | |
DE19820281C2 (en) | Mixing device of a modulable burner for liquid fuel with an ultrasonic atomizer | |
DE1508230B1 (en) | Burner for heating Siemens-Martin ovens | |
DE2114781C3 (en) | Heating method for blast furnaces and apparatus therefor | |
DE19855069A1 (en) | Liquid fuel preparation unit for burners has hollow cavity inside lance shaped for enlarged volume flow to control air flow | |
DE102018128128A1 (en) | Burner head, burner system and method for operating a burner system |
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): AT BE DE ES FR GB IE IT NL PT |
|
17P | Request for examination filed |
Effective date: 19980616 |
|
17Q | First examination report despatched |
Effective date: 20000301 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE DE ES FR GB IE IT NL PT |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020116 |
|
REF | Corresponds to: |
Ref document number: 212114 Country of ref document: AT Date of ref document: 20020215 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 59608607 Country of ref document: DE Date of ref document: 20020221 |
|
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: 20020416 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20020416 |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2173327 Country of ref document: ES Kind code of ref document: T3 |
|
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: 20021114 |
|
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 |
|
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: 20021130 |
|
26N | No opposition filed | ||
BERE | Be: lapsed |
Owner name: *PATZ ANDREAS Effective date: 20021130 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20031126 Year of fee payment: 8 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20050601 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20050601 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20071128 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20071129 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20071122 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080121 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20090129 Year of fee payment: 13 |
|
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: 20081114 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20090731 |
|
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: 20090603 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20081115 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20081115 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20091114 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091114 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081130 |