EP1305551A1 - Atomizing burner - Google Patents
Atomizing burnerInfo
- Publication number
- EP1305551A1 EP1305551A1 EP01965175A EP01965175A EP1305551A1 EP 1305551 A1 EP1305551 A1 EP 1305551A1 EP 01965175 A EP01965175 A EP 01965175A EP 01965175 A EP01965175 A EP 01965175A EP 1305551 A1 EP1305551 A1 EP 1305551A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- atomizer
- nozzle
- fuel
- swirl
- 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.)
- Granted
Links
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
- F23D11/10—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
-
- 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
-
- 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
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/07001—Air swirling vanes incorporating fuel injectors
Definitions
- the present invention relates to an atomizer burner, in particular for use in a motor vehicle auxiliary heater, with an atomizer nozzle for processing the fuel, an ignition device and a combustion chamber.
- a known device which is used in particular in auxiliary heaters for motor vehicles or other mobile units, contains an absorbent body such as, for example, a fleece, to which liquid fuel is fed through a fuel feed line.
- the fuel supplied to this absorbent body evaporates by supplying a stream of combustion air and can then be ignited with the aid of, for example, a glow pencil.
- BESTATIGUNGSKOPIE nozzles cannot always cause the required atomization of the fuel.
- This object is achieved according to the invention in a generic atomizer burner in that an air-guiding device is connected upstream of a nozzle assembly of the atomizer nozzle and applies a swirl to the combustion air flowing into the atomizer nozzle.
- an air-guiding device is connected upstream of a nozzle assembly of the atomizer nozzle and applies a swirl to the combustion air flowing into the atomizer nozzle.
- the air-guiding device has swirl showers which impart the swirl to the combustion air flow on its way to the atomizing nozzle.
- the swirl blades are arranged on a carrier attached to the nozzle assembly and that two swirl blades together form a conical channel together with the carrier and the nozzle assembly.
- the level of the tangential air and thus the jet air swirl can be set at the same level.
- the swirl blades can be arranged approximately radially or substantially inclined to the radial.
- the swirl vanes can be flat or curved in the direction of flow.
- the air-guiding device has a cup-shaped sleeve with axial bores and tangential bores formed therein and that the sleeve is fastened to the nozzle assembly, the fastening being able to be formed in a form-fitting or material-locking manner.
- the sleeve can be attached to the nozzle assembly.
- the axial and tangential bores are matched to one another in such a way that the combustion air is given a defined swirl.
- the twist can thus be determined with regard to its characteristics by the choice of the size, the arrangement and the configuration of the tangential and axial bores with respect to one another.
- the atomizer nozzle preferably has an internal cross section which has a pressure profile over its course which, at least directly around an outlet opening of the fuel from a fuel supply, shows a value which is lower than the pressure prevailing in the fuel supply.
- the degree of pressure reduction is chosen such that the fuel is sucked out of the fuel supply and atomized in the process.
- the inner cross section of the atomizer nozzle is expediently formed as a Venturi nozzle.
- FIG. 1 is a schematic longitudinal cross-sectional view of a preferred embodiment of an atomizer burner according to the invention.
- FIG. 2 shows a perspective view of an air-guiding device of the atomizer burner of FIG. 1;
- Figure 3 is a schematic longitudinal cross-sectional view of a second preferred embodiment of an atomizer burner according to the invention.
- FIG. 4 shows the air-guiding device of the embodiment according to FIG. 3 in a schematic cross-sectional view along the line AA in FIG. 3;
- FIG. 5 shows a schematic cross-sectional view according to FIG. 4, an alternative design of the air-guiding device.
- An atomizer burner which is intended in particular for use in a motor vehicle auxiliary heater, contains (see FIG. 1) an atomizer nozzle 2 with a nozzle assembly 3, a fuel supply 4 for supplying fluid fuel into an atomizer region 6 of the atomizer nozzle 2 and a combustion chamber 8, which is surrounded by a heat shield 9 as a peripheral limitation.
- An air-guiding device 10 is connected upstream of the nozzle assembly 3 of the atomizer nozzle 2 and imparts a swirl to the nozzle air flowing into the atomizer nozzle 2.
- FIG. 1 An atomizer burner, which is intended in particular for use in a motor vehicle auxiliary heater, contains (see FIG. 1) an atomizer nozzle 2 with a nozzle assembly 3, a fuel supply 4 for supplying fluid fuel into an atomizer region 6 of the atomizer nozzle 2 and a combustion chamber 8, which is surrounded by a heat shield 9 as a peripheral limitation.
- An air-guiding device 10 is connected upstream of the nozzle assembly 3 of the atomizer nozzle 2
- the atomizer nozzle 2 is designed as a Venturi nozzle, which has an air inflow channel 5 and the atomizer region 6 which widens in the flow direction and is flowed through by an atomizing air stream flowing into the atomizer nozzle 2 via the air-guiding device 10.
- a fluid or fuel supply 11, z. B. a fuel needle into it (see also FIG. 2), which has a defined outlet opening 13.
- the fuel supply 11 is preferably located on a central axis 7 of the atomizer nozzle 2 or the air inflow duct 5 and the atomizer region 6 of the Venturi nozzle.
- the fuel supply 11 can be a line, a fuel needle or a fluid nozzle in order to convey the fuel to be atomized into the venturi nozzle almost without pressure.
- the atomizer nozzle 2 is preferably made of ceramic. Ceramic material has significant thermomechanical advantages over steel as an alternative usable material, such as a lower thermal conductivity and a lower coefficient of thermal expansion.
- the air-guiding device 10 contains a spaced and opposite z. B. formed as a circular disc support 12 which forms an annular gap 14 together with the end face 15 of the nozzle assembly 3.
- Swirl blades 17 are arranged on the carrier 12, which are directed against the end face 15 of the nozzle assembly 3 and bear against it in the assembly position.
- the swirl vanes 17 are each offset on the carrier 12 with respect to a radial through the center of the carrier 12 formed by the fuel supply 11 in order to generate a tangential flow component.
- Two swirl blades 17 form a conical channel 19 together with the carrier 12 and the nozzle assembly 3 (see FIG. 2).
- the heat shield 9 or the combustion chamber 8 has secondary air bores 16 on its base, which can be distributed over an annular edge region of the base of the heat shield 9. 1 shows only two of these secondary air bores 16 by way of example.
- 9 secondary air holes can also be provided in the side or peripheral wall of the heat shield.
- the heat shield 9 of the combustion chamber 8 is a separate component via a seal 18 and a flange 20 on the nozzle assembly 3 z. B. firmly attached by means of screws 23.
- the flange 20 contains a further air-conducting device 21 for swirling the secondary air flowing into the combustion chamber 8 through the secondary air bores 16.
- the air-guiding device 21 likewise contains, in an annular gap 22, approximately radially arranged swirl vanes 25 which, in the manner already described, bring about a tangential flow component for generating swirl.
- the atomizer burner further contains a bluff body within the combustion chamber 8 in the direction of atomization of the fuel in the flame zone, which is preferably a baffle plate 24, which can preferably be conical, convex or concave.
- the baffle plate 24 is pot-shaped in the form of a collar 26 against the direction of atomization of the fuel, the diameter of the baffle plate 24 being smaller than that of the combustion chamber 8 and the ratio of the diameter of the baffle plate 24 to the diameter of the combustion chamber 8 preferably between 0.6 and 0.9 is.
- the baffle plate 24 is fastened to the heat shield 9 with fastening tabs 28. The ratio of the axial distance of the baffle plate 24 from the atomization point of the fuel at the outlet opening 13 of the
- Fuel supply 11 to the diameter of the combustion chamber 8 is preferably between 0.3 and 0.6.
- An ignition device 29, shown schematically with broken lines, for igniting the atomized fuel is arranged in the combustion chamber 8 next to the Venturi nozzle.
- a second embodiment of an atomizer burner contains an air-guiding device 10 'which has a cup-shaped sleeve 30, in the bottom of which axial air openings 32, e.g. B. axial bores, and in the peripheral wall 33 circumferential air openings 34, which are also referred to as tangential bores due to their orientation.
- the sleeve 30 is fastened to the nozzle assembly 3 of the atomizing nozzle 2, for example by plugging it onto the nozzle assembly 3 or by means of other positive, non-positive or material connections.
- the axial bores 32 and the tangential bores 34 are matched to one another in such a way that a defined swirl is imparted to the combustion air which flows into the air inflow duct 5 and then into the atomizer region 6.
- FIG. 4 shows an exemplary arrangement of the axial air openings or axial bores 32 and the circumferential air openings or tangential bores 34 in the sleeve 30.
- the pot-shaped sleeve 30 shown in FIG. 5 has in its peripheral wall 33 air openings 35 which are delimited towards the center of the sleeve 30 by a respective air guide vane 36.
- a tangential flow component is impressed on the inflowing combustion air by the air guide vanes 36.
- atomizer burner in particular for use in a motor vehicle parking heater, with an atomizer nozzle (2) for processing the fuel, an ignition device and a combustion chamber (8), characterized in that a nozzle assembly (3) of the atomizer nozzle (2) is an air-conducting device (10, 10 ') is connected upstream, which impinges a swirl on the combustion air flowing into the atomizing nozzle (2).
- Atomizer burner according to claim 1 characterized in that the air-guiding device (10) has swirl blades (17).
- Atomizer burner according to claim 2 characterized in that the swirl vanes (17) are arranged on a support (12) attached to the nozzle assembly (3) and that in each case two swirl vanes (17) together with the support (12) and the nozzle stock (3) form a conical channel (19).
- Atomizer burner according to claim 1 characterized in that the air-guiding device (10 ') has a cup-shaped sleeve (30) fastened to the nozzle assembly (3) with axial air openings (32) formed therein and in a peripheral wall (33)
- Atomizer burner according to claim 4 characterized in that the peripheral air openings (34) are almost tangential to the peripheral wall (33) bores. 6. Atomizer burner according to claim 4 or 5, characterized in that on the peripheral air openings (35) air guide vanes (36) are arranged.
- atomizer burner according to one of claims 4 to 7, characterized in that the sleeve (30) is integrally connected to the nozzle assembly (3).
- Atomizer burner according to one of claims 4 to 7, characterized in that the sleeve (30) on the nozzle assembly (3) is attached.
- Atomizer burner according to one of the preceding claims, characterized in that the atomizer nozzle (2) has an inner cross section which has a static pressure profile over its course, which at least directly around an outlet opening (13) of the fuel from a fuel supply (11) has its minimum, which results in a high flow rate, which tears the fuel from the fuel feed (11) and atomizes.
- Atomizer burner according to one of the preceding claims, characterized in that the atomizer nozzle (2) is a Venturi nozzle.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
- Spray-Type Burners (AREA)
Abstract
Description
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10039152A DE10039152A1 (en) | 2000-08-06 | 2000-08-06 | atomizer burner |
DE10039152 | 2000-08-06 | ||
PCT/EP2001/009065 WO2002012792A1 (en) | 2000-08-06 | 2001-08-06 | Atomizing burner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1305551A1 true EP1305551A1 (en) | 2003-05-02 |
EP1305551B1 EP1305551B1 (en) | 2007-01-10 |
Family
ID=7652045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01965175A Expired - Lifetime EP1305551B1 (en) | 2000-08-06 | 2001-08-06 | Atomizing burner |
Country Status (10)
Country | Link |
---|---|
US (1) | US20030022123A1 (en) |
EP (1) | EP1305551B1 (en) |
JP (1) | JP2004506167A (en) |
KR (1) | KR100771965B1 (en) |
CN (1) | CN1198079C (en) |
AU (1) | AU2001285874A1 (en) |
DE (2) | DE10039152A1 (en) |
HU (1) | HUP0203137A2 (en) |
PL (1) | PL196411B1 (en) |
WO (1) | WO2002012792A1 (en) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7357821B2 (en) * | 2001-09-05 | 2008-04-15 | Webasto Ag | System for converting fuel and air into reformate |
DE10218623B4 (en) * | 2002-04-25 | 2004-03-25 | Webasto Thermosysteme International Gmbh | Atomizer burner for a heater |
DE10221495B4 (en) * | 2002-05-14 | 2004-03-11 | Webasto Thermosysteme International Gmbh | Burner for a heater |
DE10224350B3 (en) * | 2002-05-29 | 2004-01-22 | Webasto Thermosysteme International Gmbh | Atomizer burner with a Venturi tube for a heater |
DE10227810B4 (en) * | 2002-06-21 | 2004-08-26 | Webasto Thermosysteme International Gmbh | Burner for a heater with a baffle plate |
DE10241791B4 (en) * | 2002-09-06 | 2004-09-23 | Webasto Thermosysteme International Gmbh | Burner, especially Venturi burner, with a combustion chamber tube |
DE10394235D2 (en) | 2003-02-28 | 2006-01-19 | Webasto Ag Fahrzeugtechnik | System for supplying combustion air and liquid fuel into a burner |
ITBG20030016A1 (en) * | 2003-02-28 | 2004-09-01 | Benetton Group S P A Ora Benetton Trading Usa In | IMPROVED SPORTS RACKET STRUCTURE WITH OPENINGS ON THE FRAME |
CN1748108A (en) * | 2003-02-28 | 2006-03-15 | 韦巴斯托股份公司 | Nozzle for spraying liquid fuel |
DE10331575B4 (en) * | 2003-07-11 | 2005-08-25 | Webasto Ag | Burner for a heater with a fuel nozzle |
DE10347509B4 (en) * | 2003-10-13 | 2006-08-10 | Webasto Ag | Heater with a spray nozzle |
DE10350103B3 (en) * | 2003-10-27 | 2005-03-10 | Webasto Ag Fahrzeugtechnik | Burner for mobile heater with baffle has baffle with disk surface having support feet built into them |
CA2595021A1 (en) * | 2004-11-17 | 2006-05-26 | Webasto Ag | Burner for a heater device with improved impact disc |
EP1812747A1 (en) * | 2004-11-17 | 2007-08-01 | Webasto AG | Burner for a heating device with improved fuel supply |
KR100782237B1 (en) | 2005-08-26 | 2007-12-05 | 베바스토 아게 | Nozzle for spraying liquid fuel |
US8616193B2 (en) * | 2008-06-27 | 2013-12-31 | Electrolux Home Products, Inc. | Cooktop swirl burner |
JP2009063289A (en) * | 2008-11-12 | 2009-03-26 | Webasto Ag | Nozzle for spraying liquid fuel |
KR101033791B1 (en) * | 2009-06-01 | 2011-05-13 | 현대자동차주식회사 | A burner apparatus |
DE102010043222B4 (en) | 2010-11-02 | 2014-02-27 | Eberspächer Climate Control Systems GmbH & Co. KG | Combustion chamber assembly and firing mechanism therefor |
KR101267589B1 (en) | 2011-09-28 | 2013-05-24 | 현대제철 주식회사 | A preheating burner |
DE102012101578A1 (en) * | 2012-02-27 | 2013-08-29 | Webasto Ag | Mobile liquid fueled heater |
DE102012101577A1 (en) | 2012-02-27 | 2013-08-29 | Webasto Ag | Mobile liquid fueled heater |
DE102012101580B4 (en) | 2012-02-27 | 2020-10-29 | Webasto Ag | Mobile heating device operated with liquid fuel |
WO2014024943A1 (en) | 2012-08-07 | 2014-02-13 | 日野自動車 株式会社 | Burner for exhaust gas purification devices |
JP5740056B2 (en) * | 2012-08-07 | 2015-06-24 | 日野自動車株式会社 | burner |
WO2014024944A1 (en) | 2012-08-07 | 2014-02-13 | 日野自動車 株式会社 | Burner for exhaust gas purification devices |
CN104603539B (en) * | 2012-08-13 | 2017-06-23 | 日野自动车株式会社 | Burner |
US10222070B2 (en) * | 2016-01-15 | 2019-03-05 | Haier Us Appliance Solutions, Inc. | Gas burner assembly with a temperature sensor |
CN107379924A (en) * | 2017-09-04 | 2017-11-24 | 郑州振资汽车配件有限公司 | Baffle assembly for the empty warm heater of parking |
DE102018111636A1 (en) * | 2018-05-15 | 2019-11-21 | Webasto SE | Evaporator assembly for mobile heaters |
CN112628728B (en) * | 2020-12-22 | 2023-05-12 | 江苏羚羊机械有限公司 | Novel rotary kiln combustor adjustable cyclone device |
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US2464165A (en) * | 1942-08-24 | 1949-03-08 | Stewart Warner Corp | Portable heating apparatus |
US2806517A (en) * | 1950-11-16 | 1957-09-17 | Shell Dev | Oil atomizing double vortex burner |
US3749548A (en) * | 1971-06-28 | 1973-07-31 | Zink Co John | High intensity burner |
US3972182A (en) * | 1973-09-10 | 1976-08-03 | General Electric Company | Fuel injection apparatus |
US3922137A (en) * | 1974-02-22 | 1975-11-25 | Gulf Oil Canada Ltd | Apparatus for admixing fuel and combustion air |
US4004875A (en) * | 1975-01-23 | 1977-01-25 | John Zink Company | Low nox burner |
US4089629A (en) * | 1975-02-12 | 1978-05-16 | Pietro Fascione | Process and apparatus for controlled recycling of combustion gases |
US4220444A (en) * | 1978-02-27 | 1980-09-02 | John Zink Company | Gas burner for flame adherence to tile surface |
US4303386A (en) * | 1979-05-18 | 1981-12-01 | Coen Company, Inc. | Parallel flow burner |
DE3642122C1 (en) | 1986-12-10 | 1988-06-09 | Mtu Muenchen Gmbh | Fuel injector |
JP3159519B2 (en) * | 1992-05-18 | 2001-04-23 | 中国電力株式会社 | Burner structure for combustion |
KR100211676B1 (en) * | 1996-12-24 | 1999-08-02 | 구이회 | A cold aggregate heating apparatus with dryer burne and superheated steam ejector around its body |
DE19738054C2 (en) * | 1997-09-01 | 2002-06-20 | Heinrich Koehne | Method and device for changing the swirl number of the combustion air of a burner during operation |
FR2794221B1 (en) * | 1999-05-31 | 2001-08-24 | Pillard Chauffage | IMPROVEMENTS ON LOW NOx AND DUST EMISSIONS, LIQUID FUEL BURNERS, AND ATOMIZERS |
DE50107045D1 (en) * | 2000-03-24 | 2005-09-15 | Webasto Thermosysteme Gmbh | TWO-PIECE BURNER WITH VENTURI TUBE FUEL SPRAYING AND VENTURID BUTTER FOR SPRAYING LIQUID FUEL |
-
2000
- 2000-08-06 DE DE10039152A patent/DE10039152A1/en not_active Ceased
-
2001
- 2001-08-06 DE DE50111858T patent/DE50111858D1/en not_active Expired - Lifetime
- 2001-08-06 KR KR1020027004335A patent/KR100771965B1/en active IP Right Grant
- 2001-08-06 HU HU0203137A patent/HUP0203137A2/en unknown
- 2001-08-06 WO PCT/EP2001/009065 patent/WO2002012792A1/en active IP Right Grant
- 2001-08-06 AU AU2001285874A patent/AU2001285874A1/en not_active Abandoned
- 2001-08-06 CN CNB018023088A patent/CN1198079C/en not_active Expired - Fee Related
- 2001-08-06 JP JP2002518038A patent/JP2004506167A/en active Pending
- 2001-08-06 PL PL353403A patent/PL196411B1/en unknown
- 2001-08-06 US US10/110,070 patent/US20030022123A1/en not_active Abandoned
- 2001-08-06 EP EP01965175A patent/EP1305551B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0212792A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1386182A (en) | 2002-12-18 |
PL353403A1 (en) | 2003-11-17 |
DE50111858D1 (en) | 2007-02-22 |
JP2004506167A (en) | 2004-02-26 |
HUP0203137A2 (en) | 2003-01-28 |
KR20020033213A (en) | 2002-05-04 |
PL196411B1 (en) | 2007-12-31 |
US20030022123A1 (en) | 2003-01-30 |
EP1305551B1 (en) | 2007-01-10 |
KR100771965B1 (en) | 2007-11-01 |
CN1198079C (en) | 2005-04-20 |
AU2001285874A1 (en) | 2002-02-18 |
DE10039152A1 (en) | 2002-02-14 |
WO2002012792A1 (en) | 2002-02-14 |
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