EP1305551B1 - Zerstäuberbrenner - Google Patents

Zerstäuberbrenner Download PDF

Info

Publication number
EP1305551B1
EP1305551B1 EP01965175A EP01965175A EP1305551B1 EP 1305551 B1 EP1305551 B1 EP 1305551B1 EP 01965175 A EP01965175 A EP 01965175A EP 01965175 A EP01965175 A EP 01965175A EP 1305551 B1 EP1305551 B1 EP 1305551B1
Authority
EP
European Patent Office
Prior art keywords
air
nozzle
atomizing
fuel
burner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01965175A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1305551A1 (de
Inventor
Felix Wolf
Bernd Mittmann
Christine Sallinger
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.)
Webasto Thermosysteme GmbH
Webasto Thermosysteme International GmbH
Original Assignee
Webasto Thermosysteme GmbH
Webasto Thermosysteme International GmbH
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 Webasto Thermosysteme GmbH, Webasto Thermosysteme International GmbH filed Critical Webasto Thermosysteme GmbH
Publication of EP1305551A1 publication Critical patent/EP1305551A1/de
Application granted granted Critical
Publication of EP1305551B1 publication Critical patent/EP1305551B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 a nebulizer burner, in particular for use in a motor vehicle parking heater, according to the preamble of patent claim 1.
  • a device known for example from US Pat. No. 4,818,219 A or EP 0 287 712 B1 which is used in particular for auxiliary heaters for motor vehicles or other mobile units, contains an absorbent body such as a fleece, for example, which is supplied with liquid fuel through a fuel feed line.
  • the fuel supplied to this absorbent body evaporates under supply of a combustion air flow and can then be ignited by means of, for example, a glow plug.
  • US Pat. No. 3,972,182 A discloses a generic atomizer burner.
  • a swirl device is disposed within the fuel supply, which imparts a twist to the fuel.
  • the atomizer nozzle opens into a conical inflow part of a Venturi tube.
  • a further atomizing burner in which the outlet plane of a fuel atomizing atomizing nozzle under pressure is arranged approximately in the middle of a cone-shaped tapered inflow part of a Venturi tube.
  • Object of the present invention is therefore to provide a Zerstäuberbrenner that allows a high-quality atomization of the fuel for fast response times of the burner and a high efficiency thereof and can be easily and economically produced and operated.
  • the atomizer nozzle has an inner cross section, which has a pressure profile over its course, which has a minimum at least immediately around an outlet opening of the fuel from a fuel supply. The degree of pressure reduction is chosen such that the fuel is sucked from the fuel supply and thereby atomized.
  • the inner cross section of the atomizer nozzle is expediently also formed in the form of a Venturi nozzle.
  • the air-conducting device to swirl blades, which impose the swirl on the combustion air flow on its way to the atomizer nozzle.
  • the Dralischaufeln are arranged on a mounted on the nozzle carrier and that in each case two swirl vanes together with the carrier and the nozzle block form a conical channel.
  • the Tangentialluftanteil and thus the nozzle air swirl can be adjusted.
  • the swirl blades can be arranged approximately radially or substantially inclined to the radial.
  • the swirl vanes may be flat or curved in the flow direction.
  • the air-conducting device has a pot-shaped sleeve with axial bores and tangential bores formed therein and that the sleeve is attached to the nozzle, wherein the attachment may be formed positively or cohesively.
  • the sleeve can be plugged onto the nozzle.
  • the axial and the tangential bores are coordinated so that the combustion air is given a defined spin.
  • the twist can thus be determined by the choice of the size, the arrangement and the formation of the tangential and axial bores with respect to its characteristics.
  • An atomizing burner which is particularly intended for use in a motor vehicle parking heater, includes (see FIG. 1) an atomizing nozzle 2 with a nozzle 3, a fuel supply 4 for supplying a fluid in a atomizing area 6 of the atomizing nozzle 2 and a combustion chamber 8, which is surrounded by a heat shield 9 as perimeter boundary.
  • the nozzle 3 of the atomizer nozzle 2 is preceded by an air-conducting device 10, which imparts a twist to the nozzle air flowing into the atomizer nozzle 2.
  • an air-conducting device 10 which imparts a twist to the nozzle air flowing into 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 a atomizing air stream flowing in via the air-conducting device 10 into the atomizer nozzle 2.
  • a fluid or fuel supply 11 for.
  • the fuel supply 11 is preferably located on a Central axis 7 of the atomizer nozzle 2 and the Lucaseinströmkanals 5 and the atomizer 6 of the Venturi nozzle.
  • the fuel supply 11 may be a conduit, a fuel needle or a fluid nozzle to promote the fuel to be atomized almost without pressure in the venturi.
  • the atomizing nozzle 2 according to the embodiment of the burner shown in Fig. 1 is subjected to high thermal loads, it is preferably made of ceramic. Ceramic material has significant thermomechanical advantages over steel as an alternative usable material, such as lower thermal conductivity and a lower thermal expansion coefficient.
  • the air-conducting device 10 has a spacing from an end face 15 of the nozzle block 3, and z. B. formed as a circular disc carrier 12 which forms an annular gap 14 together with the end face 15 of the nozzle block 3.
  • swirl vanes 17 are arranged, which are directed against the end face 15 of the nozzle block 3 and abut it in the mounting position.
  • the swirl vanes 17 are arranged offset on the carrier 12 in each case with respect to a radial through the center of the carrier 12 formed by the fuel supply 11 to a tangential flow component to produce.
  • Two swirl vanes 17 together with the carrier 12 and the nozzle 3 form a conical channel 19 (see FIG. 2).
  • the combustion air flow flowing through the annular gap 14 is imparted with a twist by the swirl blades 17 and the conical channels 19 as it flows into the atomizer nozzle 2.
  • the heat shield 9 or the combustion chamber 8 has secondary air bores 16 at its bottom, which can be distributed over an annular edge region of the bottom of the heat shield 9.
  • the heat shield 9 of the combustion chamber 8 is a separate component via a seal 18 and a flange 20 on the nozzle 3 z. B. firmly attached by means of screws 23.
  • the flange 20 includes a further air-conducting device 21 for twisting the secondary air flowing through the secondary air bores 16 into the combustion chamber 8.
  • the air-conducting device 21 also contains in an annular gap 22 approximately radially arranged swirl blades 25, which cause a tangential flow component for swirl generation in the manner already described.
  • the atomizer burner further contains within the combustion chamber 8 in the atomization direction of the fuel in the flame zone a baffle body, which is preferably a baffle plate 24, which may preferably be formed conical, convex or concave.
  • the baffle plate 24 is cup-shaped in the present embodiment as a disc with a collar 26 against the atomization direction of the fuel, wherein the diameter of the baffle plate 24 is less 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.
  • the baffle plate 24 is attached 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 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 adjacent to the venturi nozzle.
  • a second embodiment of a Zerstäuberbrenners includes an air-conducting device 10 ', which has a cup-shaped sleeve 30, in the bottom axial air openings 32, z. B. axial bores, and in the peripheral wall 33 peripheral air openings 34, which are also referred to as tangential bores due to their orientation, are formed.
  • the sleeve 30 is attached to the nozzle 3 of the atomizer nozzle 2, for example by plugging on the nozzle 3 or by other form-, force or cohesive connections.
  • the axial bores 32 and the tangential bores 34 are matched to one another in such a way that a defined spin 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 cup-shaped sleeve 30 shown in FIG. 5 has, in its circumferential wall 33, air openings 35 which are delimited toward the center of the sleeve 30 by a respective air guide vane 36. Through the air guide vanes 36 of the incoming combustion air a tangential flow component is impressed.

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)
  • Air-Conditioning For Vehicles (AREA)
EP01965175A 2000-08-06 2001-08-06 Zerstäuberbrenner Expired - Lifetime EP1305551B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10039152 2000-08-06
DE10039152A DE10039152A1 (de) 2000-08-06 2000-08-06 Zerstäuberbrenner
PCT/EP2001/009065 WO2002012792A1 (de) 2000-08-06 2001-08-06 Zerstäuberbrenner

Publications (2)

Publication Number Publication Date
EP1305551A1 EP1305551A1 (de) 2003-05-02
EP1305551B1 true EP1305551B1 (de) 2007-01-10

Family

ID=7652045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01965175A Expired - Lifetime EP1305551B1 (de) 2000-08-06 2001-08-06 Zerstäuberbrenner

Country Status (10)

Country Link
US (1) US20030022123A1 (enExample)
EP (1) EP1305551B1 (enExample)
JP (1) JP2004506167A (enExample)
KR (1) KR100771965B1 (enExample)
CN (1) CN1198079C (enExample)
AU (1) AU2001285874A1 (enExample)
DE (2) DE10039152A1 (enExample)
HU (1) HUP0203137A2 (enExample)
PL (1) PL196411B1 (enExample)
WO (1) WO2002012792A1 (enExample)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1423190B1 (de) * 2001-09-05 2007-08-15 Webasto AG System zum umsetzen von brennstoff und luft zu reformat und verfahren zur montage eines solchen systems
DE10218623B4 (de) * 2002-04-25 2004-03-25 Webasto Thermosysteme International Gmbh Zerstäuberbrenner für ein Heizgerät
DE10221495B4 (de) * 2002-05-14 2004-03-11 Webasto Thermosysteme International Gmbh Brenner für ein Heizgerät
DE10224350B3 (de) * 2002-05-29 2004-01-22 Webasto Thermosysteme International Gmbh Zerstäuberbrenner mit einem Venturirohr für ein Heizgerät
DE10227810B4 (de) * 2002-06-21 2004-08-26 Webasto Thermosysteme International Gmbh Brenner für ein Heizgerät mit einer Prallscheibe
DE10241791B4 (de) * 2002-09-06 2004-09-23 Webasto Thermosysteme International Gmbh Brenner, insbesondere Venturibrenner, mit einem Brennkammerrohr
US20060214030A1 (en) * 2003-02-28 2006-09-28 Markus Neumuller Nozzle for spraying liquid fuel
DE10394235D2 (de) 2003-02-28 2006-01-19 Webasto Ag Fahrzeugtechnik System zum Zuführen von Brennluft und flüssigem Brennstoff in einen Brenner
ITBG20030016A1 (it) * 2003-02-28 2004-09-01 Benetton Group S P A Ora Benetton Trading Usa In Struttura di racchetta sportiva migliorata con aperture sul telaio
DE10331575B4 (de) * 2003-07-11 2005-08-25 Webasto Ag Brenner für ein Heizgerät mit einer Brennstoffdüse
DE10347509B4 (de) * 2003-10-13 2006-08-10 Webasto Ag Heizgerät mit einer Zerstäuberdüse
DE10350103B3 (de) * 2003-10-27 2005-03-10 Webasto Ag Fahrzeugtechnik Brenner für ein mobiles Heizgerät mit einer Prallscheibe
JP2008520949A (ja) * 2004-11-17 2008-06-19 ベバスト・アクチィエンゲゼルシャフト 改良型燃料供給部を備えたヒータ用バーナ
EP1812750A1 (de) * 2004-11-17 2007-08-01 Webasto AG Brenner für ein heizgerät mit verbesserter prallscheibe
KR100782237B1 (ko) 2005-08-26 2007-12-05 베바스토 아게 액체 연료 분사용 노즐
US8616193B2 (en) * 2008-06-27 2013-12-31 Electrolux Home Products, Inc. Cooktop swirl burner
JP2009063289A (ja) * 2008-11-12 2009-03-26 Webasto Ag 液体燃料を噴霧するノズル
KR101033791B1 (ko) * 2009-06-01 2011-05-13 현대자동차주식회사 버너장치
DE102010043222B4 (de) 2010-11-02 2014-02-27 Eberspächer Climate Control Systems GmbH & Co. KG Brennkammerbaugruppe und Zündorgan dafür
KR101267589B1 (ko) 2011-09-28 2013-05-24 현대제철 주식회사 예열용 버너
DE102012101578A1 (de) * 2012-02-27 2013-08-29 Webasto Ag Mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
DE102012101580B4 (de) 2012-02-27 2020-10-29 Webasto Ag Mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
DE102012101577A1 (de) 2012-02-27 2013-08-29 Webasto Ag Mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
JP5629844B2 (ja) 2012-08-07 2014-11-26 日野自動車株式会社 排気浄化装置用バーナー
US9243531B2 (en) 2012-08-07 2016-01-26 Hino Motors, Ltd. Burner for exhaust gas purification devices
AU2013300488B2 (en) * 2012-08-07 2015-04-23 Hino Motors, Ltd. Burner
WO2014027596A1 (ja) * 2012-08-13 2014-02-20 日野自動車 株式会社 バーナー
US10222070B2 (en) * 2016-01-15 2019-03-05 Haier Us Appliance Solutions, Inc. Gas burner assembly with a temperature sensor
CN107379924A (zh) * 2017-09-04 2017-11-24 郑州振资汽车配件有限公司 用于驻车空暖加热器的导流体总成
DE102018111636A1 (de) * 2018-05-15 2019-11-21 Webasto SE Verdampferbaugruppe für mobile Heizgeräte
CN112628728B (zh) * 2020-12-22 2023-05-12 江苏羚羊机械有限公司 一种新型回转窑燃烧器可调旋流装置
CN114534634B (zh) * 2022-01-18 2023-06-09 清华大学 液体燃料自维持燃烧火焰合成燃烧器

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Also Published As

Publication number Publication date
KR20020033213A (ko) 2002-05-04
JP2004506167A (ja) 2004-02-26
US20030022123A1 (en) 2003-01-30
KR100771965B1 (ko) 2007-11-01
CN1198079C (zh) 2005-04-20
EP1305551A1 (de) 2003-05-02
DE10039152A1 (de) 2002-02-14
WO2002012792A1 (de) 2002-02-14
PL353403A1 (en) 2003-11-17
AU2001285874A1 (en) 2002-02-18
HUP0203137A2 (en) 2003-01-28
CN1386182A (zh) 2002-12-18
PL196411B1 (pl) 2007-12-31
DE50111858D1 (de) 2007-02-22

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