EP1978302B1 - Composant d'évaporateur, en particulier pour un brûleur par évaporation d'un appareil de chauffage de véhicule - Google Patents

Composant d'évaporateur, en particulier pour un brûleur par évaporation d'un appareil de chauffage de véhicule Download PDF

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Publication number
EP1978302B1
EP1978302B1 EP20080005168 EP08005168A EP1978302B1 EP 1978302 B1 EP1978302 B1 EP 1978302B1 EP 20080005168 EP20080005168 EP 20080005168 EP 08005168 A EP08005168 A EP 08005168A EP 1978302 B1 EP1978302 B1 EP 1978302B1
Authority
EP
European Patent Office
Prior art keywords
evaporator medium
evaporator
porous
carrier
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.)
Not-in-force
Application number
EP20080005168
Other languages
German (de)
English (en)
Other versions
EP1978302A3 (fr
EP1978302A2 (fr
Inventor
Günter Eberspach
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 EP1978302A2 publication Critical patent/EP1978302A2/fr
Publication of EP1978302A3 publication Critical patent/EP1978302A3/fr
Application granted granted Critical
Publication of EP1978302B1 publication Critical patent/EP1978302B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/10—Burner material specifications ceramic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/20—Burner material specifications metallic

Definitions

  • the present invention relates to an evaporator assembly, for example for an evaporator burner of a vehicle heater, according to the preamble of claim 1.
  • Evaporator assemblies generally include a cup-like evaporator media carrier having a porous evaporator medium disposed thereon. Liquid fuel is fed into this porous evaporator medium in order to distribute it by capillary action in the interior volume region of the porous evaporator medium and then to vaporize it on a surface of the evaporator medium facing a combustion chamber. Due to the required thermal stability of such evaporator assemblies, the evaporator medium carrier and the porous evaporator medium are generally constructed of metal material, for example sheet material being used for the evaporator medium carrier, while for the porous evaporator medium, for example, a metal fleece or mesh can be used.
  • the US-A-3,573,003 discloses an evaporator assembly according to the preamble of claim 1.
  • a disk-like formed porous evaporator medium is connected in the region of a bottom wall of a pot-like carrier with this locally by soldering.
  • flow channels for a fluid are formed in the adjoining region of the porous evaporator medium to the bottom wall.
  • the US-A-3,302,704 discloses a metallic composite structure having a cup-shaped carrier bent from sheet material and a porous body disposed therein.
  • the porous body is locally connected to the carrier provided as a flat material to form flow channels by soldering. Thereafter, peripheral walls are bent, in the region of which there is no connection between the porous body and the carrier.
  • an evaporator assembly in particular for an evaporator burner of a vehicle heater, according to claim 1.
  • This comprises a pot-like evaporator medium carrier and a porous evaporator medium, wherein the porous evaporator medium is connected to a surface of the evaporator medium carrier by a flat solder joint.
  • the evaporator medium carrier is formed with a bottom wall and a peripheral wall and the planar solder joint comprises substantially the entire abutment region of the porous evaporator medium to a surface of the bottom wall.
  • the planar solder joint additionally comprises the entire abutment region of the porous evaporator medium on a surface of the circumferential wall.
  • the evaporator medium carrier and / or the porous evaporator medium be made of metal material.
  • the pot-like evaporator medium carrier or / and the porous evaporator medium to be composed essentially of non-metallic material, preferably ceramic material.
  • the planar solder connection can be realized, for example, by the measure c) comprising the arrangement of soldering material on a surface of the evaporator medium carrier and before or after carrying out the measure b) the melting of the soldering material.
  • the evaporator medium carrier comprises a bottom wall and a peripheral wall and that in the measure c) a flat solder joint between the porous evaporator medium and a surface of the bottom wall is made substantially in the entire abutment region of the porous evaporator medium to the surface of the bottom wall and that in the measure c) a flat solder joint between the porous evaporator medium and a surface of the peripheral wall is made substantially in the entire abutment region of the porous evaporator medium to the surface of the peripheral wall.
  • the invention further relates to a vehicle heater with an evaporator burner, which is equipped with an inventively constructed or manufactured evaporator assembly.
  • an evaporator assembly 10 is shown as it can be used for example in an evaporator burner of a vehicle heater.
  • the evaporator assembly 10 comprises an evaporator medium carrier 12 constructed from metal, for example sheet metal material, which is generally designed as a cup-like or shell-like structure with a bottom wall 14 and a peripheral wall 16 adjoining it in the outer region.
  • a porous evaporator medium 18 is used in this cup-like or shell-like structure of the evaporator medium carrier.
  • a fuel supply line 20 can pass through the bottom wall 14 and feed liquid fuel into the area of the porous evaporator medium 18 facing away from a combustion chamber.
  • the liquid fuel is distributed by capillary action and also supported by gravity in the porous evaporator medium and reach a combustion chamber facing surface 22 of the porous evaporator medium 18, from where the fuel is released in a vaporous configuration ,
  • the porous evaporator medium 18 produced, for example, from metal fleece, metal mesh or other pore-like metal material structure is dimensioned in accordance with the shaping of the evaporator medium carrier such that it bears against a surface 24 of the bottom wall 14 and also a surface 26 of the circumferential wall 16. In these abutment regions in which the porous evaporator medium adjoins the surfaces 24 and 26, respectively, as described below with reference to FIGS Fig. 2 explains, realized a flat solder joint between the porous evaporator medium 18 and the evaporator medium carrier 12.
  • a Lötmateriallage 30 is provided which the surface 24 is covered over and in which the end regions of the fibers 28 engage.
  • the Lötmateriallage 30 extends at least over the entire surface 24 of the bottom wall 14, wherein, of course, formed in the Brennstoffzuclasstechnisch 20 Brennstoffzu Switzerlandö réelle 32 is recessed to allow the entry of fuel.
  • the soldering material layer 30 is also provided in the adjoining area on the surface 26 of the circumferential wall 16, so that substantially the entire adjoining area of the porous evaporator medium 18 is realized on the evaporator medium carrier 16 with such a soldering material layer 30.
  • the porous evaporator medium 18 In addition to the homogenization of the fuel distribution is also a much better thermal contact between the porous evaporator medium 18 and the evaporator medium carrier by providing the flat solder joint 12 realized. If, for example, a heating device, for example in the form of an electrical heating conductor or the like, is provided on the rear side 34 of the evaporator medium carrier 12 facing away from the evaporator medium 18, the heat provided there can be introduced significantly better into the porous evaporator medium 18 through the evaporator medium carrier 12 and thus the fuel evaporation be supported much more efficiently.
  • a heating device for example in the form of an electrical heating conductor or the like
  • the procedure is such that the solder material is first introduced into the evaporator medium carrier 12, in which case a solder material blank 30 is to be provided on the peripheral wall 16 as well Forming of the evaporator medium carrier 12 adapted ring-like, cup-like or cup-like structure.
  • the porous evaporator medium 18 can then be used. Thereafter, the entire assembly can be heated, so that in the adjoining region of the porous evaporator medium 18 to the evaporator medium carrier 12 existing solder material melts and can penetrate by the capillary effect in the near-surface region of the porous evaporator medium 18. In this way, a Lötmateriallage 30 formed without interruptions is realized, which realizes a fixed connection of the porous evaporator medium 18 to the evaporator medium carrier 12 after cooling and curing.
  • the evaporator medium carrier, the brazing material or the porous evaporator medium may be advantageous to weight the evaporator medium carrier, the brazing material or the porous evaporator medium by a weight. This will achieve that possibly existing gaps in the adjoining area of the porous evaporator medium are removed to the evaporator medium carrier, in particular even when these assemblies are heated to reflow the solder material. The solder material is then evenly distributed in the transition region between the evaporator medium carrier and the evaporator medium by capillary action and thus produces a very uniform connection effect. The emergence of larger gaps, in which reinforced solder material is accumulated, can thus be prevented.
  • the pot-like or shell-like evaporator medium carrier 12 or even the porous evaporator medium 18 made of metal material so that not only a positive-fit connection obtained by the penetration of the soldering material into the porous structure of the porous evaporator medium 18 is generated, but also a material connection.
  • the penetration of the liquefied soldering material into the regions of the pore structure close to the surface after hardening of this soldering material results in a very strong holding effect generated by the material sections forming the pore structure behind.
  • the evaporator medium carrier 12 made of non-metallic material such. B. ceramic material, it is possible to metallize this, for example, to evaporate a thin metal layer, so that it is constructed in particular in particular for obtaining insulation properties, non-metallic, for example, good heat insulating material, by providing a metal coating, however, nevertheless Use of the solder joint a firm connection of the porous evaporator medium 18 is achieved.

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)

Claims (4)

  1. Unité d'évaporateur, en particulier pour un brûleur à évaporation d'un dispositif de chauffage pour un véhicule, comprenant un appui de médium d'évaporation (12) en forme de pot ainsi qu'un médium d'évaporation poreux (18), le médium d'évaporation poreux (18) étant attaché par une liaison soudée de surface (30) à une surface (24, 26) de l'appui de médium d'évaporation, l'appui de médium d'évaporation (12) étant formé avec une paroi de fond (14) et une paroi circonférentielle (16),
    caractérisée par
    la liaison soudée de surface (30) comprenant la section entière de jonction du médium d'évaporation poreux (18) à une surface (24) de la paroi de fond (14) et la section entière de jonction du médium d'évaporation poreux (18) à une surface (26) de la paroi circonférentielle (16) de sorte que la formation de structures en forme de canal à l'arrière du médium d'évaporation poreux (18) est évitée et que la distribution de combustible liquide est imposée exclusivement dans le volume intérieur du médium d'évaporation poreux (18).
  2. Unité d' évaporateur selon la revendication 1,
    caractérisée par l'appui de médium d'évaporation (12) ou/et le médium d'évaporation poreux (18) étant formés d'un matériel métallique.
  3. Unité d' évaporateur selon une des revendications 1 ou 2,
    caractérisée par l'appui de médium d'évaporation (12) en forme de pot ou/et le médium d'évaporation poreux (18) étant substantiellement formés d'un matériel non-métallique, de préférence d'un matériel céramique.
  4. Dispositif de chauffage pour un véhicule, comprenant un brûleur à évaporation avec une unité d'évaporateur (10) selon une des revendications 1 à 3.
EP20080005168 2007-04-04 2008-03-19 Composant d'évaporateur, en particulier pour un brûleur par évaporation d'un appareil de chauffage de véhicule Not-in-force EP1978302B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710016306 DE102007016306A1 (de) 2007-04-04 2007-04-04 Verdampferbaugruppe, insbesondere für einen Verdampferbrenner eines Fahrzeugheizgerätes, und Verfahren zur Herstellung einer Verdampferbaugruppe

Publications (3)

Publication Number Publication Date
EP1978302A2 EP1978302A2 (fr) 2008-10-08
EP1978302A3 EP1978302A3 (fr) 2008-12-10
EP1978302B1 true EP1978302B1 (fr) 2013-01-02

Family

ID=39643810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080005168 Not-in-force EP1978302B1 (fr) 2007-04-04 2008-03-19 Composant d'évaporateur, en particulier pour un brûleur par évaporation d'un appareil de chauffage de véhicule

Country Status (2)

Country Link
EP (1) EP1978302B1 (fr)
DE (1) DE102007016306A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003363B4 (de) * 2009-01-20 2013-01-10 Webasto Ag Heizgerät-Faserverdampfer
WO2011028188A1 (fr) * 2009-09-07 2011-03-10 Stibranyi Ladislav Concept d'incinération de glycérol ou de mélanges contenant du glycérol et brûleur à évaporation atmosphérique
DE102011050368A1 (de) * 2011-05-15 2012-11-15 Webasto Ag Verdampferanordnung
DE102016109369B4 (de) 2016-05-20 2023-09-07 Webasto SE Brennstoffverdampferbaugruppe, brennstoffbetriebenes Heizgerät und Verfahren zur Herstellung einer Brennstoffverdampferbaugruppe

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1426324A (fr) 1964-12-16 1966-01-28 Soc Metallurgique Imphy Procédé de réduction directe de minerais difficiles à réduire
US3302704A (en) * 1965-05-14 1967-02-07 Olin Mathieson Compound metal structure
US3573003A (en) * 1969-11-07 1971-03-30 Olin Corp Compound metal structure
DE9210029U1 (de) * 1992-07-25 1992-09-24 Webasto Thermosysteme GmbH, 8035 Stockdorf Verdampfungsbrenner für ein mit flüssigem Brennstoff betriebenes Heizgerät
DE19546130C2 (de) * 1995-12-11 2001-10-25 Webasto Thermosysteme Gmbh Verdampfungsbrenner eines motorunabhängigen Fahrzeugheizgeräts
SE0000591L (sv) * 2000-02-24 2001-04-02 Swep Int Ab Anordning för katalytisk behandling av strömmande medier, innefattande en plattvärmeväxlare
US7267187B2 (en) * 2003-10-24 2007-09-11 Smith International, Inc. Braze alloy and method of use for drilling applications
DE102005003653A1 (de) * 2005-01-26 2006-08-03 J. Eberspächer GmbH & Co. KG Verdampferanordnung, insbesondere für ein Fahrzeugheizgerät oder einen Reformer
DE102005004359A1 (de) * 2005-01-31 2006-08-03 J. Eberspächer GmbH & Co. KG Brennkammergehäuse für einen Verdampferbrenner

Also Published As

Publication number Publication date
DE102007016306A1 (de) 2008-10-09
EP1978302A3 (fr) 2008-12-10
EP1978302A2 (fr) 2008-10-08

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