EP1363070A1 - Brûleur à vaporisation - Google Patents

Brûleur à vaporisation Download PDF

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Publication number
EP1363070A1
EP1363070A1 EP03005259A EP03005259A EP1363070A1 EP 1363070 A1 EP1363070 A1 EP 1363070A1 EP 03005259 A EP03005259 A EP 03005259A EP 03005259 A EP03005259 A EP 03005259A EP 1363070 A1 EP1363070 A1 EP 1363070A1
Authority
EP
European Patent Office
Prior art keywords
ignition
porous medium
combustion chamber
combustion
fuel
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
Application number
EP03005259A
Other languages
German (de)
English (en)
Other versions
EP1363070B1 (fr
Inventor
Thomas Bauer
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1363070A1 publication Critical patent/EP1363070A1/fr
Application granted granted Critical
Publication of EP1363070B1 publication Critical patent/EP1363070B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F23C99/006—Flameless combustion stabilised within a bed of porous heat-resistant material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D3/00—Burners using capillary action
    • F23D3/40—Burners using capillary action the capillary action taking place in one or more rigid porous bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/06—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs structurally associated with fluid-fuel burners
    • F23Q7/08—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs structurally associated with fluid-fuel burners for evaporating and igniting liquid fuel, e.g. in hurricane lanterns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications

Definitions

  • the present invention relates to an evaporator burner, in particular for a vehicle heater, which one in a combustion chamber housing Combustion chamber formed, into which a first porous medium Fuel is fed.
  • Such vaporizer burners are generally designed so that Start the combustion process a protruding into the combustion chamber Ignition device is provided by electrical excitation in its environment generated correspondingly high temperatures.
  • the one in the area near this Ignition device introduced into the combustion chamber via the first porous medium and evaporated fuel there ensures an ignitable mixture, which is initially in the vicinity of the ignition organ due to the prevailing there is ignited at high temperatures.
  • the combustion is spreading then generally ring-like over the entire combustion chamber. Has the combustion can then spread over the entire combustion chamber the ignition device can be deactivated because of the heat of combustion at the same time also sufficient energy to evaporate the over the porous supplied fuel is provided.
  • a disadvantage of such evaporator burners is that they are comparatively slow Start-up procedure, as essential areas of the combustion chamber are created by the ignition device must be warmed to the necessary for ignition To be able to generate temperatures. This could be compensated Disadvantage due to a correspondingly high glow power, which however Device power consumption increased.
  • Another disadvantage is that before and even after operating the evaporator burner, i.e. before it occurs the ignition and after stopping the combustion by which still prevailing high temperatures a fuel outgassing take place can what is due to the combustion that no longer exists in this state leads to high exhaust emissions and, above all, in Ignition process can result in inhomogeneous combustion.
  • a Vaporizer burner in particular for a vehicle heater, comprising a combustion chamber formed in a combustion chamber housing, into which Fuel is fed via a first porous medium, further comprising an ignition chamber open to the combustion chamber, in which fuel is fed via a second porous medium and in which a Ignition device is essentially completely absorbed.
  • Ignition device is no longer used to heat areas of the combustion chamber, the temperatures required to ignite an ignitable mixture to provide, but in a separate, provided for this Ignition chamber is effective, so that first in this ignition chamber Combustion will occur and combustion from the ignition chamber then into the combustion chamber, which communicates with the ignition chamber stands, will spread.
  • the Concentration of the thermal energy provided for ignition to one reached comparatively small volume range with the result that the Ignition process runs much faster and thus the period in which excessive exhaust emissions occur during the start-up phase, can be significantly reduced.
  • the risk of Deposits significantly reduced.
  • the ignition chamber is in a with the ignition chamber housing connected to the combustion chamber housing is.
  • the ignition chamber housing from thermal insulating material is built up and / or with the combustion chamber housing is connected in a thermally insulating manner.
  • the ignition chamber housing can be constructed from ceramic material.
  • the second porous medium is the igniter at least in its thermally effective range while maintaining one Intermediate space is arranged.
  • a heating device is assigned to the second porous medium.
  • this heating device can therefore in addition to that by the ignition element provided thermal energy to ensure that the in the second porous medium introduced fuel also evaporates better.
  • the ignition process can therefore be the thermal energy provided by the ignition element essentially to generate the temperatures required for ignition be used in its environment while the heat of vaporization is provided by the heater.
  • the heater has the second porous medium on it is arranged surrounding from the igniter side.
  • the fuel has a Fuel supply line can be introduced into the second porous medium can.
  • the liquid fuel then becomes the first porous medium preferably supplied with the intermediary of the second porous medium.
  • the present invention relates to a method for removing deposits on an inventive Vaporizer burner, which procedure after finishing a normal Burner operation in the ignition chamber under a fuel deficit spreading the combustion chamber and deposits on the first porous Medium burning combustion is induced.
  • This procedure ensures that the first under a fuel deficit, i.e. a lean mixture of vaporized Fuel and combustion air running off the combustion in the area the inner surface of the first porous medium, for example soot-like deposits are burned off.
  • a fuel deficit i.e. a lean mixture of vaporized Fuel and combustion air running off the combustion in the area the inner surface of the first porous medium, for example soot-like deposits are burned off.
  • This procedure preferably ensures that simultaneous excitation of the igniter and the heater essentially all of the fuel introduced into the second porous medium the ignition chamber is evaporated. This ensures that the Burn off the deposits accumulated in the combustion chamber further deposits more in the area of the first porous medium itself can accumulate.
  • the combustion during this cleaning or burning process preferably takes place at a lambda value of at least 2.
  • an evaporator burner according to the invention is generally at 10 designated.
  • the evaporator burner 10 comprises a flame tube 12, which in an axial end region 15, a combustion chamber housing 14 for a inner combustion chamber 16 of the flame tube 12 formed there.
  • the inner wall of this combustion chamber 16 is provided with a porous medium 18 lined, for example, from felt-like, braid-like or other material with pores, e.g. Foam ceramic or the like, can be formed.
  • the axial closure of the combustion chamber 16 essentially forms a ring-shaped flame diaphragm 26 which through which the combustion gases and the flame merge into the remaining area of the flame tube 12 can extend.
  • an ignition chamber housing 28 is attached to the side.
  • This approximately cylindrical ignition chamber housing 28 can with the Combustion chamber housing 14 or the end section 15 of the flame tube 12 with the interim storage of a heat and fuel resistant and preferably O-ring-like formed from thermally insulating material Sealing element 30 may be connected, so that in the transition area between the combustion chamber housing 14 and the ignition chamber housing 28 good thermal insulation is ensured.
  • the ignition chamber housing 28 for reasons described below made of thermally insulating material, e.g. Ceramic material.
  • ignition chamber housing 28 there is a ignition chamber, generally designated 32 formed in a mouth region 34 to the combustion chamber 16 is open.
  • This junction area 34 can in the example shown partly also by the one adjoining the ignition chamber housing 28 Material or wall area of the combustion chamber housing 14 is provided his.
  • the ignition chamber 32 On the inner circumference of the ignition chamber housing 28 is the ignition chamber 32 surrounding or lining porous medium 36 provided through an opening 37 formed in the mouth region 34 in the combustion chamber housing 14 and a corresponding opening in the porous medium 18 of the combustion chamber housing 14 extends through. In this area so there is an investment connection between the two porous media 36, 18
  • Ignition chamber 32 It lies centrally in the ignition chamber housing 28 or the one formed therein Ignition chamber 32 is an ignition element 46 designed as a glow ignition pin End region of the ignition chamber housing located away from the combustion chamber housing 14 28 through a connection which also has an electrical connection 48 Carrier 50 is carried on the ignition chamber housing 28. Between the outer peripheral area of which is essentially the whole Ignition chamber 32 extending igniter 46 and the porous Medium 36 an interspace 52 is formed.
  • pilot light guide element 56 ensures that one spreading out of the ignition chamber 32 into the combustion chamber 16 Pilot flame does not penetrate the combustion chamber 16 directly and then inside strikes the combustion air inlet port 22, but in the circumferential direction is deflected and thus for a ring-like combustion spread in the combustion chamber 16.
  • the fuel supply line is used first 40 the porous medium 36 of the ignition chamber 32 fuel fed.
  • the heating coil 54 is excited by simultaneous excitation and the glow plug 46 on the one hand for very rapid evaporation of the fuel introduced into the porous medium 36 to others become very much at the same time, especially in the ring-like area 52 quickly provided a sufficiently high temperature to be in the ignition chamber 32 to ignite the ignitable mixture present there.
  • the components to be heated are comparatively similar small thermally well insulated or isolatable room area are limited and not essential components of the combustion chamber 16 need to be warmed up.
  • the inventive design of the evaporator burner 10 can start up very quickly when an ignition process is carried out of the evaporator burner 10 to its nominal output, so that the harmful emissions occurring in this ramp-up phase can be significantly reduced. It is also essential for this that the additional provision of the heating coil 54 also in coordination evaporation optimally the fuel used in each case can be promoted in the ignition chamber 32 without this Providing the ignition temperatures actually provided glow plug 46 excessive heat would have to be removed.
  • the present design of a heating burner means that it is possible to operate it at start-up in such a way that it starts up Nominal power only takes a very short time, which on the one hand electrical energy is saved, on the other hand, those occurring in this phase harmful emissions can be significantly reduced.
  • in the normal combustion operation can ignite the organs effective be completely disabled. Due to the main combustion taking place in the heating burner there is sufficient thermal energy to evaporate and burn of the fuel supplied to the combustion chamber via the porous medium provided.
  • the shape and positioning of the flame guide element 56 can during the ignition process, as well as at the cleaning process described above, an essential Influence on the spread of the pilot flame in the combustion chamber so that depending on the required flame distribution, the Shape or the positioning of the element 56 can be adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wick-Type Burners And Burners With Porous Materials (AREA)
EP20030005259 2002-05-02 2003-03-10 Brûleur à vaporisation et procédé pour enlever des dépôts dans un brûleur à vaporisation Expired - Fee Related EP1363070B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10219633 2002-05-02
DE2002119633 DE10219633C1 (de) 2002-05-02 2002-05-02 Verdampferbrenner

Publications (2)

Publication Number Publication Date
EP1363070A1 true EP1363070A1 (fr) 2003-11-19
EP1363070B1 EP1363070B1 (fr) 2008-06-18

Family

ID=29264998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030005259 Expired - Fee Related EP1363070B1 (fr) 2002-05-02 2003-03-10 Brûleur à vaporisation et procédé pour enlever des dépôts dans un brûleur à vaporisation

Country Status (2)

Country Link
EP (1) EP1363070B1 (fr)
DE (2) DE10219633C1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1574782A2 (fr) * 2004-02-03 2005-09-14 J. Eberspächer GmbH & Co. Brûleur à évaporation, en particulier pour un dispositif de chauffage de voiture
EP1788305A1 (fr) 2005-11-22 2007-05-23 J. Eberspächer GmbH Co. KG Ensemble de chambre de combustion pour un brûleur à évaporation
EP1686317A3 (fr) * 2005-01-31 2008-10-08 J. Eberspächer GmbH Co. KG Ensemble de chambre de combustion pour un appareil de chauffage de véhicule
EP1717517A3 (fr) * 2005-04-29 2008-12-24 J. Eberspächer GmbH Co. KG Evaporateur, en particulier pour un dispositif de chauffage de voiture ou pour un réformeur
EP2026001A2 (fr) * 2007-08-03 2009-02-18 J. Eberspächer GmbH Co. KG Agencement d'admission d'air d'allumage pour un composant de chambre à combustion d'un appareil de chauffage à combustible, en particulier appareil de chauffage de véhicule
EP2072898A1 (fr) * 2007-12-20 2009-06-24 J. Eberspächer GmbH & Co. KG Assemblage d'une chambre de combustion por brûleur à évaporation, en particulier pour appareil de chauffage pour automobile
EP2012058A3 (fr) * 2007-07-02 2013-05-22 Eberspächer Climate Control Systems GmbH & Co. KG Appareil de chauffage pour véhicule
RU2626870C1 (ru) * 2016-09-20 2017-08-02 Евсей Аврумович Кордит Устройство для зажигания и подачи топлива в горелочное устройство испарительного типа

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014103814B4 (de) * 2014-03-20 2022-01-05 Webasto SE Mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
DE102014103813A1 (de) 2014-03-20 2015-09-24 Webasto SE Verdampferbrenneranordnung für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
DE102014103815B4 (de) 2014-03-20 2018-07-19 Webasto SE Verdampferbrenner
DE102014103812A1 (de) 2014-03-20 2015-09-24 Webasto SE Verdampferbrenner für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät
DE102014103817B4 (de) 2014-03-20 2018-07-19 Webasto SE Verdampferbrenner für ein mobiles, mit flüssigem Brennstoff betriebenes Heizgerät

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243395A1 (de) * 1982-11-24 1984-05-24 Danfoss A/S, Nordborg Verfahren zum betrieb eines vergasungsbrenners
JPS61134523A (ja) * 1984-12-04 1986-06-21 Matsushita Electric Ind Co Ltd 液体燃料燃焼器の点火装置
DE19507556A1 (de) * 1994-10-20 1996-04-25 Eberspaecher J Brenner für ein Fahrzeugheizgerät oder einen Partikelfilter-Regenerator
US6027334A (en) * 1994-11-10 2000-02-22 J. Eberspacher Gmbh & Co. Evaporation burner for a heater
DE10004507A1 (de) * 2000-02-02 2001-08-09 Eberspaecher J Gmbh & Co Heizgerät, insbesondere motorunabhängige Fahrzeugheizung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623310A (en) * 1985-04-24 1986-11-18 Mikuni Kogyo Kabushiki Kaisha Vaporized liquid fuel combustion apparatus
DE4443865C2 (de) * 1994-12-09 1999-01-14 Eberspaecher J Gmbh & Co Glühzündeinrichtung eines Verdampfungsbrenners

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243395A1 (de) * 1982-11-24 1984-05-24 Danfoss A/S, Nordborg Verfahren zum betrieb eines vergasungsbrenners
JPS61134523A (ja) * 1984-12-04 1986-06-21 Matsushita Electric Ind Co Ltd 液体燃料燃焼器の点火装置
DE19507556A1 (de) * 1994-10-20 1996-04-25 Eberspaecher J Brenner für ein Fahrzeugheizgerät oder einen Partikelfilter-Regenerator
US6027334A (en) * 1994-11-10 2000-02-22 J. Eberspacher Gmbh & Co. Evaporation burner for a heater
DE10004507A1 (de) * 2000-02-02 2001-08-09 Eberspaecher J Gmbh & Co Heizgerät, insbesondere motorunabhängige Fahrzeugheizung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 331 (M - 533) 11 November 1986 (1986-11-11) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1574782A2 (fr) * 2004-02-03 2005-09-14 J. Eberspächer GmbH & Co. Brûleur à évaporation, en particulier pour un dispositif de chauffage de voiture
EP1574782A3 (fr) * 2004-02-03 2008-04-16 J. Eberspächer GmbH & Co. KG Brûleur à évaporation, en particulier pour un dispositif de chauffage de voiture
EP1686317A3 (fr) * 2005-01-31 2008-10-08 J. Eberspächer GmbH Co. KG Ensemble de chambre de combustion pour un appareil de chauffage de véhicule
EP1717517A3 (fr) * 2005-04-29 2008-12-24 J. Eberspächer GmbH Co. KG Evaporateur, en particulier pour un dispositif de chauffage de voiture ou pour un réformeur
EP1788305A1 (fr) 2005-11-22 2007-05-23 J. Eberspächer GmbH Co. KG Ensemble de chambre de combustion pour un brûleur à évaporation
EP2012058A3 (fr) * 2007-07-02 2013-05-22 Eberspächer Climate Control Systems GmbH & Co. KG Appareil de chauffage pour véhicule
EP2026001A2 (fr) * 2007-08-03 2009-02-18 J. Eberspächer GmbH Co. KG Agencement d'admission d'air d'allumage pour un composant de chambre à combustion d'un appareil de chauffage à combustible, en particulier appareil de chauffage de véhicule
EP2026001A3 (fr) * 2007-08-03 2011-03-09 J. Eberspächer GmbH & Co. KG Agencement d'admission d'air d'allumage pour un composant de chambre à combustion d'un appareil de chauffage à combustible, en particulier appareil de chauffage de véhicule
EP2072898A1 (fr) * 2007-12-20 2009-06-24 J. Eberspächer GmbH & Co. KG Assemblage d'une chambre de combustion por brûleur à évaporation, en particulier pour appareil de chauffage pour automobile
RU2626870C1 (ru) * 2016-09-20 2017-08-02 Евсей Аврумович Кордит Устройство для зажигания и подачи топлива в горелочное устройство испарительного типа

Also Published As

Publication number Publication date
DE50309994D1 (de) 2008-07-31
DE10219633C1 (de) 2003-12-04
EP1363070B1 (fr) 2008-06-18

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