EP1696175B1 - Chemise de chambre de combustion de brûleur à vaporisation - Google Patents

Chemise de chambre de combustion de brûleur à vaporisation Download PDF

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Publication number
EP1696175B1
EP1696175B1 EP06001890A EP06001890A EP1696175B1 EP 1696175 B1 EP1696175 B1 EP 1696175B1 EP 06001890 A EP06001890 A EP 06001890A EP 06001890 A EP06001890 A EP 06001890A EP 1696175 B1 EP1696175 B1 EP 1696175B1
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EP
European Patent Office
Prior art keywords
combustion chamber
housing component
end section
housing
tube
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.)
Active
Application number
EP06001890A
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German (de)
English (en)
Other versions
EP1696175A1 (fr
Inventor
Walter Blaschke
Wolfgang Pfister
Hermann Eppler
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
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Filing date
Publication date
Application filed by J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Priority to PL06001890T priority Critical patent/PL1696175T3/pl
Publication of EP1696175A1 publication Critical patent/EP1696175A1/fr
Application granted granted Critical
Publication of EP1696175B1 publication Critical patent/EP1696175B1/fr
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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
    • 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
    • F23D11/44—Preheating devices; Vaporising devices
    • F23D11/441—Vaporising devices incorporated with burners
    • F23D11/448—Vaporising devices incorporated with burners heated by electrical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2213/00—Burner manufacture specifications

Definitions

  • the present invention relates to a combustion chamber housing for an evaporator burner according to the preamble of claim 1.
  • Such combustion chamber housings which are used in evaporator burners in vehicle heaters, are generally constructed of sheet metal material. They may be formed in one or more parts, and the sheet metal parts used to construct such a combustion chamber housing are formed from stamped or bent sheet metal tubular pieces. The assembly of the individual components is generally carried out by spot welding, soldering or other non-cutting connection techniques. In the manufacture of such a housing assembly, the bottom region is also formed or attached, in which bottom region a porous evaporator medium is generally provided. By this type of production, it is generally no longer possible to carry out subsequent replacement measures, in particular in the region of the combustion chamber floor.
  • the US 2004/0173692 A1 discloses an evaporator burner for a vehicle heater.
  • the evaporator burner has a combustion chamber housing, which is constructed with a tube-like housing component produced, for example, in a casting process, which is open at its two axial ends. At one of these axial ends of the tubular housing member is attached with an annular end face of the pipe wall to a shell-like bottom and connected thereto. In this bowl-like bottom, a porous evaporator medium is included, in which liquid fuel is fed.
  • the DE 37 26 862 A1 discloses a motor vehicle heater having a porous evaporator medium provided in a bottom portion.
  • the porous evaporator medium is located in a carrier, which is applied to an annular end face of a tubular housing part of a combustion chamber housing.
  • a securing member is added, which engages behind the carrier on its side facing away from the porous evaporator medium side and presses with an elastic locking tab against the axial end of the tubular housing member.
  • a combustion chamber housing for an evaporator burner in particular for a vehicle heater, according to claim 1.
  • This comprises a tubular housing member which is open in its first axial end region, with respect to a longitudinal axis of the tubular housing member, for providing an exit port for combustion products and in its second axial end portion is open for receiving a bottom assembly, wherein the housing member in a casting process is made.
  • the combustion chamber housing or the tubular housing component thereof in a casting process with metal material, for example a MIM (Metal Injection Molding) casting process or a precision casting process, on the one hand a thermally very stable assembly is obtained, on the other hand by using appropriate casting molds with largely variable Shaping can be designed.
  • the material thickness of such a housing component can be adapted to the locally occurring requirements by appropriate shaping.
  • the MIM method is characterized by the fact that filigree shapes and thin-walled geometries can be represented. By thin-walled geometries, the thermal mass can be reduced and thereby the heating behavior of a combustion chamber can be accelerated or the temperature level of the evaporator can be influenced.
  • the tubular housing component has at its second axial end region on an inner side a contact formation for the axial support of the base assembly.
  • This investment formation can form an integral part of the tubular housing component, d. H. be formed at this production of the casting process.
  • a subsequent machining operation for producing or possibly refining such a formation is possible.
  • the investment formation may comprise, for example, a contact shoulder projecting radially inward, but may alternatively also be formed by a step-like widening of the housing component.
  • a recess for engagement with a securing element is provided which holds the base assembly in contact with the formation formation.
  • a securing element is provided at the second axial end portion on the inside of the tubular housing member which holds the base assembly in contact with the formation formation.
  • a plurality of air inlet openings is provided in a region of the tubular housing component surrounding a combustion chamber. Furthermore, it is advantageous if an ignition element receiving formation is formed in a region of the tubular housing component surrounding a combustion chamber.
  • a flame diaphragm surrounding the outlet opening provided for the flame outlet or the exit of combustion products can be provided.
  • the invention further relates to a combustion chamber assembly for a vehicle heater with a combustion chamber housing according to the invention and a bottom assembly inserted into the second axial end region of the tubular housing component and locked there.
  • the base assembly comprises a porous evaporator medium and a heater and a bottom plate on a side thereof facing away from a combustion chamber.
  • the in the Fig. 1 illustrated combustion chamber assembly 10 includes a generally designated 12 combustion chamber housing. This in turn is essentially constructed with a tubular housing component 14, which is elongated in the direction of a longitudinal axis A. In a first axial end region 16 of the tubular housing component 14, a disc-like flame diaphragm 18 is provided thereon as an integral component, which provides an outlet opening 20 for the combustion products formed in a combustion chamber 22 surrounded by the tubular housing component 14 or a longitudinal region thereof. In this first axial end portion 16, the tubular housing member 14 is further connected to a flame tube 24, for example by soldering, welding or by clamping fit.
  • the tubular housing member 14 is also basically open. In the region of this second axial end region 32, the tubular housing component 14 is formed with a slightly greater wall thickness. On an inner side of this tubular housing component, a radially inwardly projecting abutment shoulder 34 is formed on the second axial end region 32, which is preferably completely circumferential in the circumferential direction and forms a contact formation for a base assembly 36. Slightly closer to the axial end than the abutment shoulder 34, a groove-like depression 38 is formed on the inside of the tubular housing component 14, into which a securing element 40 designed as a locking ring or the like engages or can engage. The bottom assembly 36 is then axially secured between the abutment shoulder 34 and the securing member 40.
  • said bottom assembly 36 comprises, in axial sequence, a porous evaporator medium 42, for example a mesh material, a knit, foamed ceramic or the like, for example in a dish-like support 43, then a heater 44 provided in the form of a heating coil or the like, a plate-like insulating element 46 and a bottom plate 48 comprises.
  • the porous evaporator medium 42 or the carrier 43 is supported in its radially outer region on the abutment shoulder 34, while the bottom plate 48 rests against the securing element 40.
  • a fuel supply line 50 passes through the bottom plate 48 and the isolation member 46 and extends to the porous evaporator medium 42 to introduce liquid fuel therein. The introduced fuel is distributed by capillary action in the porous evaporator medium 42 and transported in the direction of the combustion chamber 22 toward the exposed surface thereof.
  • a receiving formation 52 for serving for starting the combustion ignition member 54 for example, a Glühzünd21 formed.
  • This receiving formation 52 may for example comprise an opening in a wall region with a greater axial thickness in order to be able to stably support the ignition element 54 on the housing component 14.
  • the tubular housing component 14 is provided in the structure according to the invention as a cast metal component. It can be produced in a MIM casting or investment casting process from metal and / or ceramic material and, if necessary, can be reworked by machining. Making the tubular housing member 14 in a casting process allows for very complex shapes, such as the thickness variation seen in the second axial end region 32, so that the required stability for supporting the bottom assembly 36 can be obtained there. Even in other lengths a thickness variation is possible in a simple manner.
  • the groove-like depression 38 or the openings 30 can be incorporated, for example, below. Since at the in Fig. 1 recognizable structure the housing member 14 is formed at its two end portions 16, 32 with radially inwardly cross-sections, can be used in the production in a casting process, for example, with a lost casting core.
  • the recess 38 may be formed in the form of a plurality of radially inwardly projecting protrusions of the tubular housing member 14, similar to the abutment shoulder 34, which then, when viewed in the axial direction, again provide a depression or a support surface for a fuse element.
  • FIG. 2 an alternative embodiment of a combustion chamber assembly 10 is shown in a simplified manner. It can be seen again that the housing component 14 providing the combustion chamber housing 12 with the base assembly 36 inserted into it. In contrast to the in FIG Fig. 1 In the embodiment shown, in which the bottom assembly 36 abuts against a radially inwardly projecting abutment shoulder 34 is in the in Fig. 2 In the embodiment variant shown, the housing component 14 is designed to provide a contact formation for the base assembly 36 with a step-like radial extension 60. At this, the bottom assembly 36 is supported, for example, on the shell-like support 43 of the porous evaporator medium 42 and is held by the securing element 40 in contact with this radial extension 60.
  • the housing component 14 does not have portions that reduce its cross-section, so that it is not necessary to work with a lost shape when producing in a casting process.
  • the groove-like recess 38 for the fuse element 40 can be subsequently formed by screwing or the like.
  • a modification of such an embodiment is in the 3 and 4 shown.
  • the investment formation for the bottom assembly 36 in Substantially again formed by the radial extension 60.
  • these securing tabs 64 are then bent radially inward, so that they engage behind the bottom assembly 36 and the bottom plate 48 thereof at the side facing away from the radial extension 60 and the investment formation for the bottom assembly 36 side and hold securely.
  • FIG. 5 Another variation is in Fig. 5 shown.
  • Fig. 5 is provided for the secure mounting of the base assembly 36 on the housing member 14 by a plurality of formed in the region 62 after insertion of the bottom assembly 36 fuse impressions 66. These also engage behind the bottom plate 48 of the base assembly 36 on its side facing away from the radial extension 60 side and thus hold the bottom assembly 36 securely in the housing member 14th

Claims (8)

  1. Un boîtier de chambre de combustion pour un brûleur à évaporation, en particulier pour un dispositif de chauffage d'un véhicule, comprenant un élément de boîtier de type tube (14), ouvert dans sa première section terminale axiale (16) en relation à un axe longitudinal (A) de l'élément de boîtier de type tube pour prévoir une ouverture de sortie (20) pour des produits de combustion et ouvert dans sa deuxième section terminale axiale (32) pour recevoir un assemblage de fond (36), l'élément de boîtier de type tube (14) étant produit en une opération de fonte,
    l'élément de boîtier de type tube (14) comprenant à une face interne de sa deuxième section terminale axiale (32) une formation d'aboutement (34) pour le support axial de l'assemblage de fond (36),
    caractérisé par
    l'assemblage de fond étant engagé de derrière à son côté détourné de la formation d'aboutement (34) et étant ainsi supporté à l'élément de boîtier (14),
    une dépression (38) pour l'engagement avec un élément de sécurité (40) maintenant l'assemblage de fond (36) contre la formation de juxtaposition (34) étant prévue à la face interne de l'élément de boîtier de type tube (14), ou une pluralité d'éclisses de sécurité (64) intégrales avec l'élément de boîtier de type tube (14) et courbés radialement vers l'intérieur étant prévues à la deuxième section terminale axiale (32), ou
    une pluralité de dépressions de sécurité (66) étant prévues à la deuxième section terminale (32).
  2. Un boîtier de chambre de combustion selon la revendication 1,
    caractérisé par la formation d'aboutement (34) comprenant une épaule d'aboutement (34) s'élançant vers l'intérieur.
  3. Un boîtier de chambre de combustion selon la revendication 1,
    caractérisé par la formation d'aboutement (60) étant formée par une extension échelonnée (60) de l'élément de boîtier de type tube (14).
  4. Un boîtier de chambre de combustion selon une des revendications 1 à 3,
    caractérisé par une pluralité d'ouvertures d'insertion d'air (30) étant prévues dans une région de l'élément de boîtier de type tube (14) qui entoure une chambre de combustion (22).
  5. Un boîtier de chambre de combustion selon une des revendications 1 à 4,
    caractérisé par une formation de réception d'élément d'allumage (52) étant formée dans une région de l'élément de boîtier de type tube (14) qui entoure une chambre de combustion (22).
  6. Un boîtier de chambre de combustion selon une des revendications 1 à 5,
    caractérisé par un obturateur de flamme (18), qui entoure une ouverture de sortie (20) pour des produits de combustion, étant prévu à la première section terminale (16).
  7. Un module de chambre de combustion pour un dispositif de chauffage d'un véhicule, comprenant un boîtier de chambre de combustion (12) selon une des revendications précédentes, ainsi qu'un assemblage de fond (36), qui est inséré dans la deuxième section terminale axiale (32) de l'élément de boîtier de type tube (14) et qui y est arrêté.
  8. Un module de chambre de combustion selon la revendication 7,
    caractérisé par l'assemblage de fond (36) comprenant un médium d'évaporation poreux (42) et comprenant à un côté de ce dernier qui est détourné de la chambre de combustion (22), un dispositif de chauffage (44) et une plaque de fond (48).
EP06001890A 2005-01-31 2006-01-30 Chemise de chambre de combustion de brûleur à vaporisation Active EP1696175B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06001890T PL1696175T3 (pl) 2005-01-31 2006-01-30 Obudowa komory spalania dla palnika odparowującego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005004359A DE102005004359A1 (de) 2005-01-31 2005-01-31 Brennkammergehäuse für einen Verdampferbrenner

Publications (2)

Publication Number Publication Date
EP1696175A1 EP1696175A1 (fr) 2006-08-30
EP1696175B1 true EP1696175B1 (fr) 2010-07-07

Family

ID=36032109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001890A Active EP1696175B1 (fr) 2005-01-31 2006-01-30 Chemise de chambre de combustion de brûleur à vaporisation

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Country Link
EP (1) EP1696175B1 (fr)
DE (2) DE102005004359A1 (fr)
PL (1) PL1696175T3 (fr)
RU (1) RU2310128C1 (fr)

Families Citing this family (18)

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DE102007016306A1 (de) * 2007-04-04 2008-10-09 J. Eberspächer GmbH & Co. KG Verdampferbaugruppe, insbesondere für einen Verdampferbrenner eines Fahrzeugheizgerätes, und Verfahren zur Herstellung einer Verdampferbaugruppe
AT507704B1 (de) 2008-12-19 2012-06-15 Fronius Int Gmbh Vorrichtung zum laden eines energiespeichers, sowie verfahren zur erzeugung von wärmeenergie
DE102009003383B4 (de) * 2009-01-23 2013-01-10 Webasto Ag Verdampferbrenner für ein Fahrzeug-Heizgerät
DE102010016158B4 (de) * 2010-03-26 2012-08-16 Webasto Ag Brennkammeranordnung für einen Verdampferbrenner
DE102011050025A1 (de) * 2011-04-30 2012-10-31 Webasto Ag Verdampferbrenner für ein mobiles Heizgerät
DE102011050368A1 (de) 2011-05-15 2012-11-15 Webasto Ag Verdampferanordnung
DE102011084868C5 (de) * 2011-10-20 2020-07-23 Eberspächer Climate Control Systems GmbH & Co. KG Verdampferbrenner, insbesondere für ein Fahrzeugheizgerät
DE102013200016A1 (de) * 2013-01-02 2014-07-03 Eberspächer Climate Control Systems GmbH & Co. KG Katalytischer Brenner, insbesondere für eine Fahrzeugheizung
DE102013220654B4 (de) * 2013-10-14 2023-10-19 Eberspächer Climate Control Systems GmbH Brennkammerbaugruppe für einen Verdampferbrenner
DE102013220655B4 (de) * 2013-10-14 2016-01-14 Eberspächer Climate Control Systems GmbH & Co. KG Bodenbaugruppe für eine Brennkammerbaugruppe eines Verdampferbrenners
DE102013220653B4 (de) * 2013-10-14 2019-12-05 Eberspächer Climate Control Systems GmbH & Co. KG Brennkammerbaugruppe, insbesondere für einen Verdampferbrenner
DE102014117116B4 (de) * 2014-11-23 2019-07-18 Webasto SE Heizgerät-Verdampferkörper und Verfahren zur Herstellung eines solchen
KR20180014712A (ko) * 2015-06-02 2018-02-09 가부시키가이샤 산고 증발식 버너
DE102015110828B4 (de) * 2015-07-06 2019-11-28 Webasto SE Poröses Brennstoffaufbereitungselement
US10533740B2 (en) 2015-07-09 2020-01-14 Carrier Corporation Inward fired ultra low NOX insulating burner flange
DE102016114315A1 (de) 2016-08-03 2018-02-08 Eberspächer Climate Control Systems GmbH & Co. KG Verfahren zum Betreiben eines brennstoffbetriebenen Fahrzeugheizgerätes
DE102016116687B4 (de) * 2016-09-07 2019-12-05 Eberspächer Climate Control Systems GmbH & Co. KG Brennkammerbaugruppe für einen Verdampferbrenner
DE102017131181A1 (de) * 2017-12-22 2019-06-27 Webasto SE Verdampferbaugruppe insbesondere für ein brennstoffbetriebenes Fahrzeugheizgerät

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Also Published As

Publication number Publication date
EP1696175A1 (fr) 2006-08-30
RU2310128C1 (ru) 2007-11-10
PL1696175T3 (pl) 2010-12-31
DE102005004359A1 (de) 2006-08-03
DE502006007349D1 (de) 2010-08-19

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