EP0072950A2 - Procédé de vaporisation et de combustion des combustibles liquides et brûleur pour ce procédé - Google Patents
Procédé de vaporisation et de combustion des combustibles liquides et brûleur pour ce procédé Download PDFInfo
- Publication number
- EP0072950A2 EP0072950A2 EP82107104A EP82107104A EP0072950A2 EP 0072950 A2 EP0072950 A2 EP 0072950A2 EP 82107104 A EP82107104 A EP 82107104A EP 82107104 A EP82107104 A EP 82107104A EP 0072950 A2 EP0072950 A2 EP 0072950A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- tube
- grooves
- burner according
- nozzle
- 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.)
- Ceased
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
- F23D11/005—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means
- F23D11/007—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space with combinations of different spraying or vaporising means combination of means covered by sub-groups F23D11/10 and F23D11/24
-
- 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
- F23D11/38—Nozzles; Cleaning devices therefor
-
- 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
- F23D11/40—Mixing tubes or chambers; Burner heads
Definitions
- the invention relates to a method for the evaporation and combustion of liquid fuels, in which air, gas or water vapor is admixed to the atomized fuel, and to a burner for liquid fuels, which has an outlet opening provided with a conically tapering jacket tube at its front end, before the latter Outlet opening is an atomizer nozzle is arranged, in the outer circumferential grooves are provided, one ends of which emanate from an annular space formed by the atomizer nozzle and the jacket tube, which is connected to a compressed gas supply and the other ends of which open into the outlet space of the atomizer nozzle.
- DE-OS 26 56 439 is a method of atomization and combustion of liquid fuel and a burner operating according to this method are known, in which high-tension air is brought together in a jet in front of the oil outlet nozzle with vortex formation, thereby sucking and atomizing the liquid fuel and preparing this premix by introducing secondary air so that it is burned practically without soot can.
- the disadvantage of the burners according to the prior art is that the fuel atomization is brought about by the exchange of kinetic energy between the liquid fuel stream and the high-tension air broken down into partial jets. This known way of working requires a large mass flow of highly compressed air.
- the invention has for its object to provide a method and a burner of the type mentioned, which are not only easy to implement while avoiding the aforementioned disadvantages, but also a completely soot-free combustion with a very hot, stoichiometric, non-luminous flame.
- this object is achieved in that the that the fuel is sprayed under high pressure in an atomizing nozzle and the droplets formed thereby with air or other gas jets with a static pressure which is lower than the vapor pressure of the liquid to be atomized and at a speed which is greater than the speed of sound, be further divided and evaporated.
- the fuel is sprayed, for example, at a pressure of between 5 and 20 bar in the atomizer nozzle, the air or other gas jets having a pressure, for example initially 2.5 bar, which is reduced compared to this pressure and which is converted into a speed of, for example, 1-2 Mach .
- the fuel vapor-gas premix is mixed with secondary air at low admission pressure and completely burned in a burner tube.
- the inventive method finely atomizes the liquid fuel by means of air or gas jets of comparatively low mass, which have speeds greater than the speed of sound.
- the atomizing air or the atomizing gas are introduced into the stream of the pre-atomized fuel via nozzles which have the characteristics of Laval nozzles, in which the inflowing compressed gas is passed through a space with a continuously narrowing cross section and after flowing through the narrowest cross section into one ever expanding space arrives and flows out of this to the mouth of the atomizing nozzle, the compression pressure still inherent in the jet being converted by expansion into a speed greater than 1 Mach.
- the gas jets escaping at supersonic speed cause strong compression surges, which are periodically replaced by strong vacuum pulses.
- the process of evaporation and combustion of liquid fuels according to the invention enables the combustion of liquid fuels from low to very high viscosity, so that in particular even heavy fuel oil can be burned without soot after preheating to approx. 90 ° C with the same flame quality.
- the object underlying the invention is achieved in that the atomizer nozzle with its outer
- the surface on the inner surface of the conically tapering front end of the casing tube lies in a line shape, forming a space that tapers from the area in front of one end of the grooves to its narrowest cross section and one that narrows from the narrowest cross section of the grooves to the area behind the other ends of the groove widening space.
- the geometry of the arrangement in the area of the pressure line of the atomizer nozzle against the conically tapering front end of the casing tube is a Laval nozzle cut along the central plane and thus halved.
- the atomizer nozzle advantageously has a spherical outer peripheral surface at its front end.
- the atomizer nozzle is provided at its front end with a circumferential surface which corresponds to the lateral surfaces of two truncated cones, the front of which have a vertex angle larger and the rear have a vertex angle smaller than the cone angle of the cladding tube.
- the grooves run parallel to the inner circumferential surface of the conically tapering front end of the casing tube.
- the longitudinal axes of the grooves can run at an angle to the longitudinal axis of the casing tube and the atomizing nozzle, so that the compressed gas flowing out at supersonic speed into a Vortex movement is offset about the central axis, which leads to a dynamic mixing of the oil-primary gas mixture.
- the grooves can also be arranged in the inner circumferential surface of the conically tapering front end of the casing tube instead of in the outer circumferential surface of the atomizing nozzle, the geometry otherwise remaining unchanged.
- the cross section of the outlet opening is advantageously larger than the sum of the cross sections of the grooves at their narrowest point.
- the grooves it is also possible to provide only one groove.
- the groove or the grooves can be replaced by one notch slot or several notch slots, which is a significant advantage in terms of production technology.
- baffle plate In front of the outlet opening of the casing tube is at a certain distance a baffle plate provided with a central passage opening, through which the fuel vapor / gas mixture mixed with secondary air exits into the burner tube.
- the passage opening of the baffle plate narrows in a trumpet shape when viewed in the direction of flow, so that a nozzle characteristic results which leads to a reduction in noise generation.
- the distance of the baffle plate from the outlet opening of the casing tube and the cross section of the opening are preferably so chosen so that the secondary air reaches a high speed, for example from 15-40 m / sec., before being combined with the fuel vapor / gas mixture in order to achieve thorough mixing.
- the jacket tube of the burner is surrounded by another jacket tube to form an annular space which is provided with outlet openings at its front, conically tapering end and is connected to a gas supply at its rear end.
- This additional jacket pipe like the jacket pipe of the burner, acts as heat insulation for the supply of the liquid fuel, so that this arrangement can be operated with hot air without the risk of oil evaporation or cracking within the supply line.
- this burner design opens up possible applications in low-temperature combustion chambers for example for heat treatments, drying processes, hot water generation etc.
- the compressed air supplied for the fine atomization of the liquid fuel simultaneously cools the atomizing nozzle, so that it is protected from the effects of temperature reflection from the burner tube, even in time intervals of a fuel or combustion air supply interruption caused by control technology.
- the burner tube is equipped with bores distributed over its entire circumference and is surrounded by a cladding tube or a burner block leaving an annular space. Some of the sound waves are introduced into the annular space through the holes and attenuated by multi-facet reflection.
- the outlet cross section of the burner tube is advantageously widened in a trumpet shape as seen in the direction of flow, so that the formation of vortices on the sound emission is reduced or prevented.
- bores are provided in the area of the burner tube in front of the baffle plate which open into the annular space.
- the combustion air emerging through these bores mixes with the gas jets emerging through the bores of the burner tube, as a result of which their pulses are reduced and their temperature peaks are reduced.
- insulating materials are arranged in the annular space, which lead to a further reduction in the sound intensity.
- the baffle plate is tightly connected to a tube piece surrounding it, the outer diameter of which corresponds approximately to the inner diameter of the burner tube.
- the pipe section fits snugly against the inner wall of the burner pipe. '' Its function is to keep air passages between the baffle plate and the inner wall of the pipe section low without the use of sealing elements and - insofar as air passes through the inevitable annular gap - only at a point in the direction of flow seen at a sufficient distance from the root of the forming flame. This avoids the formation of eddies in the area of the baffle plate and cooling of the flame gases near the baffle plate, the others if it would lead to soot formation on the baffle plate.
- the tube piece is advantageously equipped at its front end with a conically tapering area. This has the task of reducing the speed of the air passing through the annular gap between the tube piece and the burner tube to such an extent that it does not influence the flame gas flow.
- the front end of an ignition electrode extends, leaving a gap, into the conically tapering region of the pipe section as a counter electrode. In this way, reliable ignition is achieved by a defined distance between the electrode and the pipe section in an area that is not endangered by excess temperatures.
- the burner tube is denoted by 1, the fastening flange of the burner by 2, the connection housing by 2a and the cover flange by 3.
- the supply line 4 for combustion air opens radially into the burner tube, while the supply line 5 for heating oil and the supply line 6 for compressed air are connected to the burner described in more detail below.
- the burner has a jacket tube provided with an outlet opening 18 which tapers conically at its front end? on, in front of the outlet opening 18 is the atomizer nozzle 10.
- the atomizer nozzle 10 has a spherical outer circumferential surface at its front end and bears against the inner surface of the conically tapering, front linear end of the casing tube 7 /.
- grooves 16 or notch slots are cut in the outer circumferential surface thereof, one end of which extends from an annular space 9 formed by the atomizer nozzle 10 and the casing tube 7, which serves as a compressed air distribution space, and the other ends of which extend to the outlet space of the atomizer nozzle 10 communicating.
- the nozzle holder of the burner is designated, in which the supply line 5 for the oil opens.
- the oil distribution chamber 11 is located inside the nozzle holder 8.
- baffle plate 13 In front of the outlet opening 18 of the casing tube 7 is at a certain distance a baffle plate 13 provided with a central passage opening 14, which is held by the carrier 15, which also serve as a spacer.
- the burner works in such a way that the liquid fuel supplied via the feed line 5 reaches the distributor space 11 and is fed from there to the atomizing nozzle 10 under high pressure.
- the droplets that form are atomized further by the compressed air entering the annular space via the feed line 6, specifically through the grooves 16 or the like. divided into air jets of high speed, the speed being greater than the speed of sound.
- the droplets, which are further divided in this way, are further evaporated by the gas-dynamic formation of negative pressure pulses, the fuel vapor / air mixture mixed with secondary air at low admission pressure entering the burner tube.
- the secondary air is introduced via the feed line 4 into the burner tube 1, specifically into the annular space surrounding the burner.
- the atomization and gasification which takes place in several stages, and intensive mixing with the combustion air result in a very hot stoichiometric, non-luminous flame in the burner tube 1, the fuel being burned completely without soot.
- the grooves 16 or the like. provided in the inner circumferential surface of the conically tapering front end 12 of the casing tube 7 while maintaining the geometric cross-sectional relationships which are decisive for the effectiveness of the system.
- this embodiment instead of a spherical circumferential surface, one is provided which corresponds to the lateral surfaces of two truncated cones, the front of which is one apex angle larger and the rear one Have apex angles smaller than the cone angle of the cladding tube.
- the compressed air supplied for the very fine atomization of the liquid fuel via the feed line 6 cools the atomizing nozzle 10, so that it is protected from the effect of temperature reflection from the burner tube 1.
- the opening 14 of the baffle plate 13 has a trumpet-shaped constriction as seen in the passage opening.
- the casing tube 7 of the burner is surrounded by a further casing tube 21, namely to form an annular space 23.
- Outlet openings 22 are present at the front end of the conically tapered casing tube 21.
- the annular space 23 is connected to a gas supply via the supply line 20.
- Both the jacket tube 21 and the jacket tube 7 of the burner act as thermal insulation of the feed line 5 for the river Sigen fuel, so that the entire arrangement can be operated with hot air, without the risk of evaporation of the fuel or its cracking within the supply line 5 results.
- bores 25 are provided in the burner tube 1 to reduce the noise emission of the burner over its entire surrounding area.
- the burner tube 1 is surrounded by a cladding tube 24, which can also represent the inner surface of a burner block.
- a cladding tube 24 can also represent the inner surface of a burner block.
- part of the sound waves is introduced into the annular space between burner tube 1 and cladding tube 24 and attenuated by multiple reflection.
- the mouth 28 of the burner tube 1 widens in a trumpet-shaped manner in the direction of flow, which reduces or prevents the formation of abort vortices on the sound emission.
- bores 26 are provided in the flow direction, which open into the annular space between the burner tube 1 and the cladding tube 24.
- the combustion air emerging through these bores 26 mixes with the gas jets emerging through the bores 25, as a result of which their momentum is reduced and their temperature pointed be lowered.
- insulating materials 27 are arranged in the annular space, which lead to a further reduction in the sound intensity.
- the baffle plate 13 can be tightly connected to a tube piece 29 surrounding it, the outer diameter of which corresponds approximately to the inner diameter of the burner tube 1.
- the tube piece 29 is equipped at its rear end, as seen in the flow direction, with a conically tapering region 30. This embodiment avoids eddy formation in the area of the baffle plate 13 and cooling of the flame gases in the vicinity of the baffle plate 13, which would lead to soot formation on the baffle plate.
- An ignition electrode 31 extends into the burner tube 1 and is attached to the burner housing with a spark plug connector.
- the ignition electrode is surrounded by a ceramic insulating body 33 in the feed-through opening in the baffle plate 13.
- the front end of the ignition electrode 31 extends un ter leaving a gap into the conically tapering region 30 of the tube piece 29, which acts as a counter electrode.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
- Spray-Type Burners (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813132948 DE3132948C2 (de) | 1981-08-20 | 1981-08-20 | Brenneraustrittskopf für einen Brenner für flüssige Brennstoffe |
DE3132948 | 1981-08-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0072950A2 true EP0072950A2 (fr) | 1983-03-02 |
EP0072950A3 EP0072950A3 (fr) | 1983-08-24 |
Family
ID=6139735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82107104A Ceased EP0072950A3 (fr) | 1981-08-20 | 1982-08-06 | Procédé de vaporisation et de combustion des combustibles liquides et brûleur pour ce procédé |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0072950A3 (fr) |
JP (1) | JPS5847903A (fr) |
DE (1) | DE3132948C2 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2146758A (en) * | 1983-09-14 | 1985-04-24 | Boc Group Plc | Apparatus and method for burning fuel |
EP0597221A1 (fr) * | 1992-11-10 | 1994-05-18 | KRAFT-INDUSTRIEWARMETECHNIK DR. RICKE GmbH | Brûleur à gaz ou à huile |
US5607108A (en) * | 1994-10-10 | 1997-03-04 | Itw Limited | Nozzle and aircap for spray guns |
EP0864812A3 (fr) * | 1997-03-12 | 1999-06-16 | A. Schwarz + Co. | Dispositif de mélange pour brûleur à gaz et à huile |
CN107084388A (zh) * | 2017-04-24 | 2017-08-22 | 东莞市兴伟达节能环保科技有限公司 | 一种混合雾化裂解燃烧器及其混合燃烧方法 |
CN110237952A (zh) * | 2019-05-23 | 2019-09-17 | 昌乐神睿农业智能设备有限公司 | 三级雾化喷头 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3714408A1 (de) * | 1987-04-30 | 1988-11-10 | Bbc Brown Boveri & Cie | Dualbrennereinrichtung mit einem brennoelzerstaeuber |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE659695C (de) * | 1933-03-14 | 1938-05-07 | Adolf Bargeboer | OEldruckzerstaeuberbrenner mit unmittelbar in den Brennraum muendender Zerstaeuberduese |
GB539877A (en) * | 1940-06-05 | 1941-09-26 | Anglo Saxon Petroleum Co | Improvements in or relating to oil burners |
DE1087310B (de) * | 1952-09-23 | 1960-08-18 | Eureka Williams Corp | Zerstaeubungsoelbrenner |
GB1016333A (en) * | 1961-08-10 | 1966-01-12 | Britowes Machinery Ltd | Improved liquid fuel burner |
GB1065760A (en) * | 1965-12-31 | 1967-04-19 | Hauck Mfg Co | Improvements in or relating to oil burners |
CH466484A (de) * | 1963-07-01 | 1968-12-15 | Broedlin Willi | Verfahren und Einrichtung zum Verbrennen von flüssigen oder gasförmigen Brennstoffen zwecks Erzeugung von Wärme |
DE1451383A1 (de) * | 1962-07-06 | 1969-01-30 | Siderurgie Fse Inst Rech | Brenner zur Erzeugung einer durch eine Stosswelle stabilisierten Flamme |
DE1917387A1 (de) * | 1968-04-03 | 1969-10-23 | Energy Sciences Inc | Verfahren und Vorrichtung zur Erzeugung supersonischer Gasstroeme |
DE1551638A1 (de) * | 1966-07-20 | 1970-04-23 | American Air Filter Co | Brenner |
FR2324986A1 (fr) * | 1975-09-17 | 1977-04-15 | Danfoss As | Buse pulverisatrice sous pression pour bruleur a huile |
DE2656439A1 (de) * | 1975-12-15 | 1977-07-21 | Strenkert L Arthur | Brenner fuer fluessigen brennstoff |
DE2810193A1 (de) * | 1978-03-09 | 1979-09-13 | Walter Swoboda | Brenner fuer fluessige brennstoffe |
DE7919481U1 (de) * | 1979-07-07 | 1979-10-04 | Maschinenfabrik Augsburg-Nuernberg Ag, 8000 Muenchen | Anordnung von zuendelektroden bei heizoelbrennern |
DE2839280A1 (de) * | 1978-09-09 | 1980-03-20 | Bosch Gmbh Robert | Oelvergasungsbrenner |
EP0018602A2 (fr) * | 1979-05-08 | 1980-11-12 | DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. | Brûleur d'huile à gazéification |
DE3011249A1 (de) * | 1980-03-24 | 1982-01-21 | Thermostar Heisler + Leins oHG Heizungs-und Klimatechnik, 7250 Leonberg | Flammrohr eines oelvergasungsbrenners |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1051546A (fr) * | ||||
US3213918A (en) * | 1963-09-04 | 1965-10-26 | Bethlehem Steel Corp | Liquid-gaseous fuel burner |
-
1981
- 1981-08-20 DE DE19813132948 patent/DE3132948C2/de not_active Expired
-
1982
- 1982-08-06 EP EP82107104A patent/EP0072950A3/fr not_active Ceased
- 1982-08-20 JP JP14348882A patent/JPS5847903A/ja active Pending
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE659695C (de) * | 1933-03-14 | 1938-05-07 | Adolf Bargeboer | OEldruckzerstaeuberbrenner mit unmittelbar in den Brennraum muendender Zerstaeuberduese |
GB539877A (en) * | 1940-06-05 | 1941-09-26 | Anglo Saxon Petroleum Co | Improvements in or relating to oil burners |
DE1087310B (de) * | 1952-09-23 | 1960-08-18 | Eureka Williams Corp | Zerstaeubungsoelbrenner |
GB1016333A (en) * | 1961-08-10 | 1966-01-12 | Britowes Machinery Ltd | Improved liquid fuel burner |
DE1451383A1 (de) * | 1962-07-06 | 1969-01-30 | Siderurgie Fse Inst Rech | Brenner zur Erzeugung einer durch eine Stosswelle stabilisierten Flamme |
CH466484A (de) * | 1963-07-01 | 1968-12-15 | Broedlin Willi | Verfahren und Einrichtung zum Verbrennen von flüssigen oder gasförmigen Brennstoffen zwecks Erzeugung von Wärme |
GB1065760A (en) * | 1965-12-31 | 1967-04-19 | Hauck Mfg Co | Improvements in or relating to oil burners |
DE1551638A1 (de) * | 1966-07-20 | 1970-04-23 | American Air Filter Co | Brenner |
DE1917387A1 (de) * | 1968-04-03 | 1969-10-23 | Energy Sciences Inc | Verfahren und Vorrichtung zur Erzeugung supersonischer Gasstroeme |
FR2324986A1 (fr) * | 1975-09-17 | 1977-04-15 | Danfoss As | Buse pulverisatrice sous pression pour bruleur a huile |
DE2656439A1 (de) * | 1975-12-15 | 1977-07-21 | Strenkert L Arthur | Brenner fuer fluessigen brennstoff |
DE2810193A1 (de) * | 1978-03-09 | 1979-09-13 | Walter Swoboda | Brenner fuer fluessige brennstoffe |
DE2839280A1 (de) * | 1978-09-09 | 1980-03-20 | Bosch Gmbh Robert | Oelvergasungsbrenner |
EP0018602A2 (fr) * | 1979-05-08 | 1980-11-12 | DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V. | Brûleur d'huile à gazéification |
DE7919481U1 (de) * | 1979-07-07 | 1979-10-04 | Maschinenfabrik Augsburg-Nuernberg Ag, 8000 Muenchen | Anordnung von zuendelektroden bei heizoelbrennern |
DE3011249A1 (de) * | 1980-03-24 | 1982-01-21 | Thermostar Heisler + Leins oHG Heizungs-und Klimatechnik, 7250 Leonberg | Flammrohr eines oelvergasungsbrenners |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2146758A (en) * | 1983-09-14 | 1985-04-24 | Boc Group Plc | Apparatus and method for burning fuel |
EP0597221A1 (fr) * | 1992-11-10 | 1994-05-18 | KRAFT-INDUSTRIEWARMETECHNIK DR. RICKE GmbH | Brûleur à gaz ou à huile |
US5607108A (en) * | 1994-10-10 | 1997-03-04 | Itw Limited | Nozzle and aircap for spray guns |
EP0864812A3 (fr) * | 1997-03-12 | 1999-06-16 | A. Schwarz + Co. | Dispositif de mélange pour brûleur à gaz et à huile |
CN107084388A (zh) * | 2017-04-24 | 2017-08-22 | 东莞市兴伟达节能环保科技有限公司 | 一种混合雾化裂解燃烧器及其混合燃烧方法 |
CN110237952A (zh) * | 2019-05-23 | 2019-09-17 | 昌乐神睿农业智能设备有限公司 | 三级雾化喷头 |
CN110237952B (zh) * | 2019-05-23 | 2023-07-28 | 潍坊生命方舟生物技术有限公司 | 三级雾化喷头 |
Also Published As
Publication number | Publication date |
---|---|
EP0072950A3 (fr) | 1983-08-24 |
DE3132948A1 (de) | 1983-03-03 |
JPS5847903A (ja) | 1983-03-19 |
DE3132948C2 (de) | 1984-07-19 |
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Legal Events
Date | Code | Title | Description |
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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 |
Designated state(s): FR GB IT NL SE |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Designated state(s): FR GB IT NL SE |
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17P | Request for examination filed |
Effective date: 19840220 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LOI INDUSTRIEOFENANLAGEN GMBH |
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18R | Application refused |
Effective date: 19870228 |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: RICKE, HANS-BENNO, DR. RER. NAT. DIPL.-PHYS. |