EP1192391B1 - Bruleur atomiseur pour le dispositif de chauffage d'un vehicule - Google Patents

Bruleur atomiseur pour le dispositif de chauffage d'un vehicule Download PDF

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Publication number
EP1192391B1
EP1192391B1 EP01940336A EP01940336A EP1192391B1 EP 1192391 B1 EP1192391 B1 EP 1192391B1 EP 01940336 A EP01940336 A EP 01940336A EP 01940336 A EP01940336 A EP 01940336A EP 1192391 B1 EP1192391 B1 EP 1192391B1
Authority
EP
European Patent Office
Prior art keywords
baffle plate
combustion chamber
atomizer
burner according
atomizer 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
EP01940336A
Other languages
German (de)
English (en)
Other versions
EP1192391A1 (fr
Inventor
Felix Wolf
Bernd Mittmann
Johann Sperl
Thomas Kerscher
Josef Amann
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 EP1192391A1 publication Critical patent/EP1192391A1/fr
Application granted granted Critical
Publication of EP1192391B1 publication Critical patent/EP1192391B1/fr
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
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/40—Mixing tubes or chambers; Burner heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/06—Baffles or deflectors for air or combustion products; Flame shields in fire-boxes
    • 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

Definitions

  • the present invention relates to a nebulizer burner for a Vehicle heater according to the preamble of claim 1.
  • Atomizer burners which are bound in fossil fuels Energy converts into heat energy, are already in the used in various fields (see for example WO 87/00605 or DE 39 01 126 A1).
  • Atomizer burners or nozzle atomizer burners in the power range of ⁇ 10 kW is usually not used because the sputtering quality at smaller Services is considered insufficient and a high electrical Power consumption to achieve a sufficient atomization quality is required.
  • atomizer burners show a bad Burning behavior in the partial load range, since here the atomization quality worse is when under full load.
  • nozzle atomizer burners of the known type show a bad Cold start behavior due to decreasing temperature increasing viscosity of the fuel, the atomization quality deteriorated.
  • large fuel drops unvaporated or only partially evaporated through the combustion chamber which is the cause of high launch emissions.
  • the object of the present invention is therefore to provide a Zerstäuberbrenner to create for a vehicle heater that works well even at lower power Part load range and during the cold start phase a good burning behavior and low emissions.
  • An atomizer burner for a vehicle heater is provided with one a combustion chamber containing combustion chamber and with a fuel in the Combustion atomizing atomizer device, being at a distance from the atomizing point of the atomizer device, which is smaller than that Diameter of the combustion chamber or the diameter of a cylindrical, is in the combustion chamber extending heat shield, one as a bluff body acting Pralisk is provided.
  • the baffle plate as a baffle has the Effect of flame stabilization, which is beneficial to a reduction of Flame noise and on the improvement of combustion in particular at lower capacities or in the partial load range of the burner. Particularly advantageous effect of the baffle plate in the realization of compact combustors for liquid fuels.
  • the burner equipped with it can also have poorer sputtering qualities process, without this having a negative effect on the burner behavior. Similarly, the possibility of realizing partial load stages, in which the Atomization quality is worse than in the full-load stage, improved.
  • the baffle plate may be conical, convex or concave, among other things.
  • the arrangement of the baffle plate in the flame zone is a Re-ignite the fuel at the glowing disk after one Flame breakage, as he for example by air bubbles in the fuel line caused, relieved.
  • CO and HC emissions can when stopping a burning process by reacting at the glowing Baffle plate can be reduced.
  • the baffle plate can be used as a disc with a collar with a height of for example, 2 mm counter to the atomization direction of the fuel be formed so that it forms a flat pot.
  • the ratio of Baffle diameter to combustion chamber diameter is preferably between 0.6 and 0.9 and the ratio of the axial distance of the baffle plate from the atomization point to the combustion chamber diameter is preferred between 0.3 and 0.6.
  • the baffle may have openings in the form of slots and / or holes , wherein the openings preferably in the form of a defined Belochung the baffle plate are formed.
  • the baffle plate can also be formed as a ring with a central through hole.
  • a chamber may be arranged on the baffle plate into which a glow device in the form of an annealing pin, for example made of ceramic, or in the form of a glow plug projects.
  • the arrangement of the glow device in the region of the flow of flow upstream of the baffle plate improves the starting behavior of the burner.
  • the chamber is preferably designed such that the glowing device protrudes into it just so that the radiation energy of the annealing device can be used downstream of the sputtering device for component heating of the baffle plate. As a result, in particular the starting behavior of such a burner is substantially improved.
  • the baffle plate may be fixed to, inter alia, the combustion chamber, the combustion chamber floor or aerodynamic installations, such as a swirl device for the combustion air.
  • the baffle plate may preferably made of high-alloy steel, ceramic or Made of ceramic coated steel.
  • FIG. 1 is a cross section through a preferred embodiment of a Atomizer burner shown.
  • This atomizer burner exists in the illustrated embodiment of a spray nozzle 2, an air-conducting Device 4 for twisting the entering into the atomizer nozzle 2 Combustion air is connected upstream.
  • the air-conducting device 4 In front of the air-conducting device 4 is on the left Side to recognize a fuel supply line 6, to which in the Atomizing nozzle 2 to be atomized fuel is supplied.
  • the Atomizer nozzle 2 is facing the combustion chamber 24 (see FIG. 5) Side connected to a cylindrical heat shield 8.
  • This heat shield 8 can be provided with secondary air holes 10, which also in the behind the Heat shield 8 lying flange 12 are provided, the attachment of the Atomizer nozzle 2 within the combustion chamber or within the vehicle heater serves.
  • the secondary air passing through these holes 10, is by an air-conducting swirl device 14 also with a twist applied.
  • the atomizer burner is also with a Annealing device 16 provided, which is a preferably of a Ceramic material existing glow pin or act on a glow plug, with the help of which the atomized fuel mixture is ignited.
  • a Annealing device 16 is a preferably of a Ceramic material existing glow pin or act on a glow plug, with the help of which the atomized fuel mixture is ignited.
  • the annealing device 16 not shown, at Zerstäubungsbrennem usual ignition device for generating a Zündfunkens provided.
  • baffle plate 18 is provided in the heat shield 8 of the Brenners a bluff body in the form of a plane in this case, perpendicular to Longitudinal axis of the combustion chamber 24 arranged baffle plate 18 is provided.
  • atomized fuel by insufficient Fuel treatment in the form of fuel droplets may occur occurs designed as a flat baffle plate 18 baffle and can there evaporate.
  • the bluff body or the baffle plate 18 is within the Flame zone of the burner arranged, whereby the flame stability improves becomes.
  • the baffle plate 18 also acts störmungsumschend and thus flame stabilizing.
  • the baffle plate 18 is preferably made of high-alloy steel and has a directed to the atomizer nozzle 2 collar 20 of about 2 mm in height on.
  • the baffle plate 18 also made of ceramic material or a coated with a ceramic material, high-alloy steel.
  • FIG. 2 is a perspective view of one having a baffle plate 18 provided combustion chamber 24, wherein at the back of the Combustion chamber 24, a flame tube 26 is arranged.
  • the illustrated in the Variant designed as a disc with a central through hole 34 Baffle plate 18D is via fastening tabs 22 in the combustion chamber 24 attached.
  • a start chamber 28 is arranged, into which a glow device protrudes can.
  • the start chamber 28 areas of the baffle plate as a "hot spot" be used to the start chamber 28 and the baffle plate 18D heat.
  • the start chamber 28 also serves as Calming zone, in which a pilot flame forms faster, which the Evaporation of the atomized fuel accelerates and thus to a faster ignition when starting the burner leads.
  • the starting chamber 28 is in the present Embodiment arranged on the edge of the baffle plate 18D.
  • the baffle plate 18 can also in particular in a closed planar training the baffle plate 18 be attached to any other point of the baffle plate or be formed integrally with this. The position of the start chamber 28 becomes ultimately determined by the position of the glowing device.
  • Figures 3 and 4 show the embodiment of FIG. 2 once in a Section view and another time in a plan view of the baffle plate 18th
  • the combustion chamber in FIGS. 2 to 4 is connected to the burner according to FIG. 1 in FIG a way that the heat shield 8 preferably in the inside of the Combustion chamber 24 is introduced, wherein the baffle plate 18 alternatively on the Heat shield 8, as shown in Fig. 1, or at the combustion chamber 24, as in the Fig. 2 to 4 shown, may be attached.
  • the heat shield 8 can also at the Be mounted combustion chamber 24, in which case recesses in the Heat shield 8 are provided.
  • holes 18 and slots 32 are additionally on the baffle plate 18 educated. Such holes 30 and slots 32 are optional intended. You can either use a given hole pattern with only one or more holes 30 or with one or more slots 32 or - As shown - as combinations of holes 30 and slots 32nd to be available.
  • the baffle plate 18A is concave educated.
  • the combustion chamber 24, which is the heat shield 8 outside surrounds, indicated.
  • Such a combustion chamber 24 is also in the remaining embodiments available.
  • the baffle plate 18D is convex, that is, it is convex. H. With one of the atomizer nozzle 2 opposing curvature formed.
  • the baffle plate 18C is conical educated.
  • the tip of the Konus also be directed against the atomizer nozzle 2.
  • the Ratio of the axial distance of the baffle plate 18, 18A, 18B, 18C and 18D from the sputtering point P is approximately between 0.3 and 0.6.
  • the Ratio of the diameter of the baffle plate 18, 18A, 18B, 18C and 18D to the diameter of the combustion chamber 24 and to the diameter of the in the Combustion chamber 24 arranged heat shield 8 approximately between 0.6 and 0.9 lies.

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)
  • Spray-Type Burners (AREA)

Claims (13)

  1. Brûleur à vaporisation pour un appareil de chauffage de véhicule, avec une chambre de combustion (24) contenant un corps déflecteur ou chicane (18), et avec un organe de vaporisation (2) vaporisant du combustible dans la chambre de combustion, caractérisé en ce qu'un disque déflecteur (18, 18A, 18B, 18C, 18D) agissant comme corps déflecteur est prévu à l'intérieur de la chambre de combustion (24) à une distance - dans la direction de vaporisation du combustible - du point de vaporisation (P) de l'organe de vaporisation (2) qui est inférieure au diamètre de la chambre de combustion (24) ou au diamètre d'un bouclier thermique cylindrique (8) s'étendant dans la chambre de combustion (24).
  2. Brûleur à vaporisation selon la revendication 1, caractérisé en ce que le disque déflecteur (18C) est conique.
  3. Brûleur à vaporisation selon la revendication 1, caractérisé en ce que le disque déflecteur (18B) est convexe.
  4. Brûleur à vaporisation selon la revendication 1, caractérisé en ce que le disque déflecteur (18A) est concave.
  5. Brûleur à vaporisation selon l'une des revendications 1 à 4, caractérisé en ce que le disque déflecteur (18, 18A, 18B, 18C, 18D) est réalisé sous forme de disque pourvu d'un collet (20) à l'encontre de la direction de vaporisation du combustible, de sorte qu'il forme un pot ouvert vers l'organe de vaporisation (2).
  6. Brûleur à vaporisation selon l'une des revendications 1 à 5, caractérisé en ce que le rapport du diamètre du disque déflecteur (18) au diamètre de la chambre de combustion (24) ou au diamètre d'un bouclier thermique (8) disposé dans la chambre de combustion (24) est compris entre 0,6 et 0,9.
  7. Brûleur à vaporisation selon l'une des revendications 1 à 6, caractérisé en ce que le rapport, au diamètre de la chambre de combustion, de la distance axiale entre le disque déflecteur (18) et le point de vaporisation (P) est compris entre 0,3 et 0,6.
  8. Brûleur à vaporisation selon l'une des revendications 1 à 7, caractérisé en ce que le disque déflecteur (18) présente des ouvertures sous la forme de fentes (32) et/ou de perçages (30).
  9. Brûleur à vaporisation selon l'une des revendications précédentes, caractérisé en ce que le disque déflecteur (18D) est réalisé sous forme d'anneau.
  10. Brûleur à vaporisation selon l'une des revendications 1 à 9, caractérisé en ce qu'une chambre (28), dans laquelle pénètre un organe incandescent (16), est disposée sur le disque déflecteur (18, 18A, 18B, 18C, 18D).
  11. Brûleur à vaporisation selon l'une des revendications précédentes, caractérisé en ce que le disque déflecteur (18, 18A, 18B, 18C, 18D) est réalisé en acier fortement allié.
  12. Brûleur à vaporisation selon l'une des revendications 1 à 10, caractérisé en ce que le disque déflecteur (18, 18A, 18B, 18C, 18D) est réalisé en matériau céramique.
  13. Brûleur à vaporisation selon l'une des revendications 1 à 10, caractérisé en ce que le disque déflecteur (18, 18A, 18B, 18C, 18D) est réalisé en acier revêtu de matériau céramique.
EP01940336A 2000-04-17 2001-04-17 Bruleur atomiseur pour le dispositif de chauffage d'un vehicule Expired - Lifetime EP1192391B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10019198A DE10019198A1 (de) 2000-04-17 2000-04-17 Zerstäuberbrenner
DE10019198 2000-04-17
PCT/EP2001/004336 WO2001079755A1 (fr) 2000-04-17 2001-04-17 Bruleur atomiseur pour le dispositif de chauffage d'un vehicule

Publications (2)

Publication Number Publication Date
EP1192391A1 EP1192391A1 (fr) 2002-04-03
EP1192391B1 true EP1192391B1 (fr) 2004-08-25

Family

ID=7639187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01940336A Expired - Lifetime EP1192391B1 (fr) 2000-04-17 2001-04-17 Bruleur atomiseur pour le dispositif de chauffage d'un vehicule

Country Status (7)

Country Link
US (1) US6644959B2 (fr)
EP (1) EP1192391B1 (fr)
JP (1) JP2003531353A (fr)
KR (1) KR100786146B1 (fr)
CN (1) CN1140426C (fr)
DE (2) DE10019198A1 (fr)
WO (1) WO2001079755A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054662B4 (de) * 2004-11-17 2008-08-14 Webasto Ag Brenner für ein Heizgerät mit verbesserter Prallscheibe
DE102005054661B4 (de) * 2004-11-17 2008-08-14 Webasto Ag Brenner für ein Heizgerät mit verbesserter Brennstoffzuführung, verbessertem Hitzeschild und verbesserter Prallscheibe
DE102005054657B4 (de) * 2004-11-17 2009-04-09 Webasto Ag Brenner für ein Heizgerät mit verbessertem Hitzeschild
DE102005054656B4 (de) * 2004-11-17 2010-03-04 Webasto Ag Brenner für ein Heizgerät mit verbesserter Brennstoffzuführung

Families Citing this family (26)

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US7357820B2 (en) * 2001-09-05 2008-04-15 Webasto Ag System for converting fuel and air into reformate
DE10210034B4 (de) * 2002-03-07 2009-10-01 Webasto Ag Mobiles Heizgerät mit einer Brennstoffversorgung
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
AU2003233909A1 (en) * 2003-02-28 2004-09-17 Webasto Ag Nozzle for spraying liquid fuel
JP2005116356A (ja) * 2003-10-08 2005-04-28 Nissan Motor Co Ltd 燃焼器支持構造
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
DE102004002246A1 (de) * 2004-01-15 2005-08-11 J. Eberspächer GmbH & Co. KG Vorrichtung zur Erzeugung eines Luft/Kohlenwasserstoff-Gemischs
DE102004005113B4 (de) * 2004-02-02 2006-02-23 Webasto Ag Venturi-Brenner mit einem Abfangkörper
DE102004016333B4 (de) * 2004-04-02 2006-08-31 Webasto Ag Heizgeräte-Brenner mit einer Prallscheibe
DE102004034868B4 (de) * 2004-07-19 2008-09-25 Webasto Ag Brenner für ein Heizgerät
DE112005003408A5 (de) * 2004-11-17 2007-10-25 Webasto Ag Brenner für ein Heizgerät mit verbessertem Hitzeschild
CA2594577A1 (fr) * 2004-11-17 2006-05-26 Webasto Ag Bruleur pour un appareil de chauffage, presentant une alimentation en combustible, un ecran thermique et un deflecteur ameliores
CA2595021A1 (fr) * 2004-11-17 2006-05-26 Webasto Ag Bruleur pour un appareil de chauffage presentant un deflecteur ameliore
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
DE102004057270B4 (de) * 2004-11-26 2006-08-17 Webasto Ag Brennstoffverdampferelement für ein Heizgerät
DE102008033096A1 (de) * 2008-07-15 2010-02-11 Uhde Gmbh Verfahren und Vorrichtung zum Zünden und zum Betrieb von Brennern bei der Vergasung kohlenstoffhaltiger Brennstoffe
US9249704B2 (en) 2012-08-07 2016-02-02 Hino Motors, Ltd. Burner for exhaust gas purification devices
WO2014024942A1 (fr) * 2012-08-07 2014-02-13 日野自動車 株式会社 Brûleur
CN104024734A (zh) 2012-08-07 2014-09-03 日野自动车株式会社 排气净化装置用燃烧器
JP5740057B2 (ja) * 2012-08-13 2015-06-24 日野自動車株式会社 バーナー
WO2017009903A1 (fr) * 2015-07-10 2017-01-19 株式会社長野セラミックス Brûleur à combustible mixte

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DE19649473C2 (de) * 1996-11-29 1999-01-07 Webasto Thermosysteme Gmbh Verfahren zum Überwachen der Flamme in einem brennstoffbetriebenen Heizgerät
US6162049A (en) * 1999-03-05 2000-12-19 Gas Research Institute Premixed ionization modulated extendable burner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054662B4 (de) * 2004-11-17 2008-08-14 Webasto Ag Brenner für ein Heizgerät mit verbesserter Prallscheibe
DE102005054661B4 (de) * 2004-11-17 2008-08-14 Webasto Ag Brenner für ein Heizgerät mit verbesserter Brennstoffzuführung, verbessertem Hitzeschild und verbesserter Prallscheibe
DE102005054657B4 (de) * 2004-11-17 2009-04-09 Webasto Ag Brenner für ein Heizgerät mit verbessertem Hitzeschild
DE102005054656B4 (de) * 2004-11-17 2010-03-04 Webasto Ag Brenner für ein Heizgerät mit verbesserter Brennstoffzuführung

Also Published As

Publication number Publication date
WO2001079755A1 (fr) 2001-10-25
CN1366594A (zh) 2002-08-28
US20020136997A1 (en) 2002-09-26
EP1192391A1 (fr) 2002-04-03
DE10019198A1 (de) 2001-10-18
DE50103379D1 (de) 2004-09-30
KR20020023958A (ko) 2002-03-29
JP2003531353A (ja) 2003-10-21
CN1140426C (zh) 2004-03-03
KR100786146B1 (ko) 2007-12-18
US6644959B2 (en) 2003-11-11

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