EP1522788A2 - Brûleur à vaporisation - Google Patents

Brûleur à vaporisation Download PDF

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Publication number
EP1522788A2
EP1522788A2 EP04012271A EP04012271A EP1522788A2 EP 1522788 A2 EP1522788 A2 EP 1522788A2 EP 04012271 A EP04012271 A EP 04012271A EP 04012271 A EP04012271 A EP 04012271A EP 1522788 A2 EP1522788 A2 EP 1522788A2
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
evaporator
heat transfer
fuel
medium
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
EP04012271A
Other languages
German (de)
English (en)
Other versions
EP1522788B1 (fr
EP1522788A3 (fr
Inventor
Walter Blaschke
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 EP1522788A2 publication Critical patent/EP1522788A2/fr
Publication of EP1522788A3 publication Critical patent/EP1522788A3/fr
Application granted granted Critical
Publication of EP1522788B1 publication Critical patent/EP1522788B1/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
    • 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
    • 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
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
    • 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
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/13003—Energy recovery by thermoelectric elements, e.g. by Peltier/Seebeck effect, arranged in the combustion plant

Definitions

  • the present invention relates to an evaporator burner comprising Evaporating medium for feeding fuel into a combustion chamber, a Zündsammlung adopted for igniting present in the combustion chamber Fuel vapor / air mixture and a tempering device with at least one tempering element for thermal influencing of the into the combustion chamber to be fed fuel or / and the evaporator medium and / or the air to be fed into the combustion chamber.
  • Such an evaporator burner is known from DE 101 30 638 A1.
  • a combustion chamber limiting Combustor housing substantially pot-shaped and indicates at the bottom region on the side facing the combustion chamber an evaporator medium of porous material.
  • the liquid fuel is via a Brennstoffzumoltechnisch in this porous evaporator medium fed, is distributed under capillary action in the evaporator medium and then at the combustion chamber facing surface of the Evaporated evaporator medium. It thus forms fuel vapor, the along with the fed into the combustion chamber also Combustion air then an ignitable fuel vapor / air mixture forms.
  • evaporator burner often for parking heaters and heaters They are generally used with the same fuel operated, like the internal combustion engine of a vehicle. This will be particular be in use as a heater in general diesel fuel.
  • this electrical operable heater is an electrical operable heater assigned.
  • the evaporator medium By exciting this electrically operable Heating device is the evaporator medium at its from the Combustion chamber located away from the side, so that together with the evaporator medium and the distributed therein under capillary action Fuel, so for example diesel fuel is heated and a shows improved Abdampf . This is especially true in the Starting phase important because such evaporator burner or this generally operating heaters, if comparatively low ambient temperatures are present.
  • a vapor burner comprising an evaporator medium for feeding Fuel in a combustion chamber, a Zündsammlung adopted for igniting in the combustion chamber existing fuel vapor / air mixture and a tempering device with at least one tempering for thermal influencing of fed into the combustion chamber Fuel and / or the evaporator medium and / or in the Combustion chamber to be fed air.
  • the at least one tempering includes a Peltier element.
  • thermosetting device used at least one Peltier element.
  • Peltier elements have the elementary characteristic that they work as heat pumps. That is, by energizing a Peltier element can be made sure that heat from one side the same is transported to the other, i. cooled on one side, while the heat removed during cooling then at the other Page is submitted. When reversing the direction of the current is also the Direction of heat transport around.
  • the Charalterizing uses the present invention to, for example, too Operating state dependent on the critical area, so for example the evaporator medium or to be fed into this or already fed liquid fuel to extract heat.
  • the danger of one too spontaneous evaporation thus exists in particular in the Combustion operation not in which due to the expiring combustion comparatively high temperatures are present.
  • the under takes Use of a Peltier element possible cooling for that first still liquid fuel, so for example in terms of Abdampfungs characterizing basically critical gasoline, in the Evaporator medium evenly distributed and then controlled in the Combustion chamber is discharged.
  • a Peltier element possible cooling for that first still liquid fuel, so for example in terms of Abdampfungs characterizing basically critical gasoline, in the Evaporator medium evenly distributed and then controlled in the Combustion chamber is discharged.
  • the use of a such Peltier element the possibility of being on one side, ie For example, from the evaporator medium, withdrawn heat to the in to transfer the combustion chamber to be fed air, so that they already preheated enters the combustion chamber and then taking place Mixing with the already evaporated fuel combustion enabled with reduced pollutant emissions.
  • Peltier element allows described, by defined control of the same, of course also the heating of the evaporator medium or of the steam to be evaporated Fuel, which, for example, before starting at comparatively low Ambient temperatures is of great advantage because of this preheating a shorter starting phase can be obtained and during the starting phase or at the beginning of the ignition already with reduced pollutant emissions is burned.
  • the inventive evaporator burner can be constructed in this way be that a combustion chamber housing with a heat transfer wall is provided that on one of the combustion chamber side facing the heat transfer wall, the evaporator medium is provided and that in the area in which the evaporator medium is provided, on a side remote from the combustion chamber side of the Heat transfer wall, the at least one tempering is provided.
  • the at least one tempering will continue to deliver transported heat as efficiently as possible proposed that the at least one tempering at its from the heat transfer wall facing away from a Heat transfer surface formation has.
  • the heat transfer surface formation rib-like is trained.
  • the combustion characteristics especially with regard to pollutant emissions in the inventive use of one or more Peltier elements characterized be improved, that the at least one tempering on a from the heat transfer wall facing away in Heat transfer interaction with the combustion chamber Air to be fed can be brought.
  • the Combustion chamber to be introduced and together with a fuel vapor burning air already preheated, if the Peltier element so it is operated, that it heat from the range of the combustion chamber, thus for example, the area of the evaporator medium, deducted.
  • the at least one tempering with his from the heat transfer wall facing away from and / or with the Heat transfer surface formation protrudes into an air duct.
  • the combustion chamber housing is pot-shaped with a Peripheral wall and a bottom wall and that the bottom wall forms at least part of the heat transfer wall.
  • an evaporator burner comprising an evaporator medium for feeding fuel into a combustion chamber, an ignition heater to ignite existing in the combustion chamber Fuel vapor / air mixture and a cooling device with at least a cooling element for cooling the feed into the combustion chamber Fuel and / or the evaporator medium.
  • the at least one cooling element comprises a Peltier element.
  • a method proposed for operating an evaporator burner in which Method is provided that before and / or during an ignition / starting phase operated at least one Peltier element of the evaporator burner is that the fuel to be fed into the combustion chamber and / or Is heated evaporator medium and that at or / and after Ignition at least one Peltier element is operated such that the in the combustor to be fed fuel and / or the Evaporator medium is cooled.
  • a generally designated 10 heater with his essential components.
  • This heater 10 includes a Evaporator burner 12, which via an air supply area 14 to the Combustion required air is supplied.
  • the case of combustion Heat generated by a generally designated 14 heat exchanger then to a medium to be heated, so for example air or water, transfer.
  • this heat exchanger 14 is only an inner cup-shaped housing part 16, which together with a not shown and this outside surrounding also pot-like housing part limits a flow space for the medium to be heated.
  • the evaporator burner 12 itself comprises a generally designated 18 Combustor housing, which has a basically pot-like structure.
  • a peripheral wall 20 and a bottom portion 22 of the combustion chamber housing 18 are formed as separate components and connected to each other to provide the cup-like structure.
  • the peripheral wall 20 is further connected to a flame tube 24 into which the combustion exhaust gases flowing through an integral with the peripheral wall 20 to flow therein on the housing part 16 of the heat exchanger 14 and then along a formed between the flame tube 24 and the housing part 16 Return flow space 26 toward a combustion exhaust outlet 28 to flow, as indicated by arrows P 1 .
  • the evaporator burner 12 or the combustion chamber housing 18 of the same is supported on a plate-like support member 30, in particular to achieve the required tightness between the housing member 16 and this support member 30, a sealing member 32 may be provided.
  • This carrier component 30, together with a further housing part 34, also delimits an air flow space 36, through which the air to be combusted in a combustion chamber 38 flows as indicated by arrows P 2 under the conveying action of a blower (not shown ) .
  • a ring-like flow space 40 is formed, in which the air flowing in the air flow space 36 enters air and then via formed in the peripheral wall 20 openings 42 into the combustion chamber 38 arrived.
  • a fuel supply line 44 opens. This will make you more fluid Fuel, such as gasoline, promoted toward the combustion chamber 38.
  • Fuel such as gasoline
  • the inside of the bottom portion 22 of the combustion chamber housing 18 is with a two-layer designed here porous evaporator medium 46 occupied. At the side facing away from the combustion chamber 38 side takes this evaporator medium 46, the liquid fuel and transported this under capillary action in its outermost edge areas.
  • a plate-like Distribution element 48 may be arranged, which ensures that the there entering the porous evaporator medium 46 fuel not straight to the combustion chamber 38 facing side of the porous evaporator medium 46 can flow, but initially deflected radially must become.
  • an ignition element 50 which extends over the porous evaporator medium 46th extends into the combustion chamber 38 inside.
  • This example as Glühzünd21 configured ignition element 50 is used by generating local High temperature areas existing in the combustion chamber 38 To ignite fuel vapor / air mixture and thus the evaporator burner 12 to start.
  • thermoforming device 52 intended.
  • Peltier elements 54 for example, in association with each Peltier element 54 at the bottom wall portion 22 at the of the Combustion chamber 38 facing away from the same provided a recess be there, so that there the material thickness of the Bodenwandungs Schemes to improved heat transfer is reduced.
  • these Depressions for example, in the form of a ring-like circumferential Depression can be provided at the bottom wall portion 22 are provided in the support member 30 corresponding recesses, so that the Peltier elements 54 basically with their from the combustion chamber 38 and thus also facing away from the bottom wall region 22 Side to the air flow space 36 towards freely.
  • the Peltier elements 54 also ribbed, so a better one Heat transfer contact between the Peltier elements 54 and the Tempering device 52 and the air flowing in the air flow space 36 air can be obtained.
  • the Peltier elements 54 can be operated in this way be that they heat from the bottom wall portion 22nd facing side to the side remote from the bottom wall portion 22 and the air flow space 36 side facing transport, or vice versa.
  • the Peltier elements 54 In the first case, that is with the Peltier elements 54 in contact standing area of the bottom wall portion 22 cooled, and there extracted heat is transferred via the ribs 56 to the air flow space 36 discharged air. This attains that together with the bottom wall portion 22 also in contact with the porous Evaporating medium 36 and the liquid fuel present in this be cooled or heat is removed from there.
  • the Peltier elements can operate this way be that they the combustion chamber housing 18 and the bottom wall portion 22 and thus also preheat the porous evaporator medium 46.
  • the evaporator burner 12 is brought into a state in which when the liquid fuel is introduced via the fuel supply line 44 is due to the already slightly elevated temperatures one improved fuel evaporation takes place and thus also in the starting phase or when igniting a lower pollutant emissions is present. Is the ignition then takes place, so ensures the heat of combustion, as previously addressed very quickly for warming up the various system areas, so that then, for example, the Peltier elements 54 switched or be controlled differently according to the previous to achieve the mentioned cooling effect.

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)
  • Air-Conditioning For Vehicles (AREA)
EP04012271.5A 2003-10-07 2004-05-24 Brûleur à vaporisation Expired - Lifetime EP1522788B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10346558 2003-10-07
DE10346558A DE10346558B3 (de) 2003-10-07 2003-10-07 Verdampferbrenner

Publications (3)

Publication Number Publication Date
EP1522788A2 true EP1522788A2 (fr) 2005-04-13
EP1522788A3 EP1522788A3 (fr) 2008-11-12
EP1522788B1 EP1522788B1 (fr) 2014-05-07

Family

ID=34202430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04012271.5A Expired - Lifetime EP1522788B1 (fr) 2003-10-07 2004-05-24 Brûleur à vaporisation

Country Status (2)

Country Link
EP (1) EP1522788B1 (fr)
DE (1) DE10346558B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013017127A1 (fr) * 2011-08-01 2013-02-07 Webasto SE Procédé permettant de faire fonctionner un appareil de chauffage mobile avec différents types de combustible

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006012925A1 (de) * 2006-03-21 2007-09-27 J. Eberspächer GmbH & Co. KG Fahrzeugheizgerät
DE102007021937B4 (de) * 2007-05-10 2014-03-27 Eberspächer Climate Control Systems GmbH & Co. KG Verdampferbaugruppe, insbesondere für einen Verdampferbrenner eines Fahrzeugheizgerätes
DE102007029202A1 (de) * 2007-06-25 2009-01-08 J. Eberspächer GmbH & Co. KG Verdampferbaugruppe, insbesondere für ein Fahrzeugheizgerät
DE102007038705A1 (de) * 2007-08-16 2009-02-19 J. Eberspächer GmbH & Co. KG Verfahren zum Betreiben eines brennstoffbetriebenen Heizgeräts, insbesondere Fahrzeugheizgerät
DE102008006112A1 (de) * 2008-01-25 2009-07-30 BSH Bosch und Siemens Hausgeräte GmbH Heizeinrichtung für ein Hausgerät zur Pflege von Wäschestücken und Verfahren zum Betreiben einer derartigen Heizeinrichtung
DE102011077891B3 (de) * 2011-06-21 2012-12-06 J. Eberspächer GmbH & Co. KG Verdampferbaugruppe, insbesondere für ein Fahrzeugheizgerät
DE102011052324A1 (de) * 2011-08-01 2013-02-07 Webasto Ag Fahrzeugheizgerät zum Betrieb mit mehreren Brennstoffarten
DE102016015762B4 (de) 2016-09-15 2020-07-30 Eberspächer Climate Control Systems GmbH & Co. KG Brennkammerbaugruppe für ein brennstoffbetriebenes Fahrzeugheizgerät
DE102016117408B4 (de) * 2016-09-15 2020-11-26 Eberspächer Climate Control Systems GmbH Brennkammerbaugruppe für ein brennstoffbetriebenes Fahrzeugheizgerät

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210699A1 (de) 1992-04-01 1993-10-07 U T S Uhrentechnik Schwarzwald Löt- oder Schweißvorrichtung
DE10130638A1 (de) 2001-06-26 2003-01-02 Eberspaecher J Gmbh & Co Verdampferbrenner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879837A (en) * 1958-01-28 1959-03-31 Edgar S Downs Liquid fuel burning heater
DE3538201A1 (de) * 1985-02-08 1986-08-14 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Verdampfungsbrenner fuer ein mit fluessigem brennstoff betriebenes heizgeraet
DE3526866A1 (de) * 1985-07-26 1987-02-05 Kernforschungsanlage Juelich Verdampfer fuer fluessigen brennstoff zur erzeugung eines brennstoff-luft-gemisches
DE19848149C2 (de) * 1998-10-20 2001-04-12 Webasto Thermosysteme Gmbh Brenner eines Fahrzeugheizgeräts
DE19900295A1 (de) * 1999-01-07 2000-07-13 Irt Innovative Recycling Techn Verbrennungssteuerung von Gasturbinen zur Schwingungsreduktion durch Brennstoffdotierung im Reaktor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210699A1 (de) 1992-04-01 1993-10-07 U T S Uhrentechnik Schwarzwald Löt- oder Schweißvorrichtung
DE10130638A1 (de) 2001-06-26 2003-01-02 Eberspaecher J Gmbh & Co Verdampferbrenner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013017127A1 (fr) * 2011-08-01 2013-02-07 Webasto SE Procédé permettant de faire fonctionner un appareil de chauffage mobile avec différents types de combustible

Also Published As

Publication number Publication date
EP1522788B1 (fr) 2014-05-07
EP1522788A3 (fr) 2008-11-12
DE10346558B3 (de) 2005-03-17

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