EP2072898B1 - Assemblage d'une chambre de combustion por brûleur à évaporation, en particulier pour appareil de chauffage pour automobile et utilisation dans un dispositif de chauffage - Google Patents

Assemblage d'une chambre de combustion por brûleur à évaporation, en particulier pour appareil de chauffage pour automobile et utilisation dans un dispositif de chauffage Download PDF

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Publication number
EP2072898B1
EP2072898B1 EP08018651A EP08018651A EP2072898B1 EP 2072898 B1 EP2072898 B1 EP 2072898B1 EP 08018651 A EP08018651 A EP 08018651A EP 08018651 A EP08018651 A EP 08018651A EP 2072898 B1 EP2072898 B1 EP 2072898B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
ignition element
evaporator medium
element receiving
porous evaporator
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
EP08018651A
Other languages
German (de)
English (en)
Other versions
EP2072898A1 (fr
Inventor
Oliver Schmidt
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 EP2072898A1 publication Critical patent/EP2072898A1/fr
Application granted granted Critical
Publication of EP2072898B1 publication Critical patent/EP2072898B1/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
    • 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
    • F23D3/00—Burners using capillary action
    • F23D3/40—Burners using capillary action the capillary action taking place in one or more rigid porous bodies

Definitions

  • the present invention relates to a combustion chamber assembly for an evaporator burner, in particular for a vehicle heater, comprising a combustion chamber delimiting combustion chamber housing with at least one Zündorganamineransatz on a wall, wherein on an inner side of the Zündorganamsatzes a porous evaporator medium is provided and a fuel supply line for feeding liquid fuel into the porous evaporator medium opens into the Zündorganamble of the Ausprüchs first
  • combustion chamber assembly 10 includes a combustion chamber housing 12 which is formed with an example substantially circular cylindrical peripheral wall 14 and a bottom wall 16.
  • the bottom wall 16 may be integrally formed with the peripheral wall 14 and formed therewith to provide an integral combustor housing 12 in a manufacturing operation, generally using a casting process for manufacturing.
  • the substantially pot-shaped combustion chamber housing 12 defines a combustion chamber 18 with its peripheral wall 14 and its bottom wall 16.
  • a region is at the combustion chamber housing 12, namely here the peripheral wall 14, a Zündorganfactansatz 20 provided.
  • This lateral approach is approximately tangential to the peripheral wall 14 and is preferably integrally formed with this, so also forms an integral part of the metal-made combustor 12.
  • this approach 20 based on its longitudinal direction, for example, be designed substantially circular cylindrical.
  • a possibly provided on the bottom wall 16 combustion air inlet nozzle which may be formed approximately parallel to the peripheral wall 14 extending in a central region of the bottom wall 16 and projects into the combustion chamber 18 to feed combustion air into the combustion chamber 18 via a plurality of slot-like openings formed therein ,
  • a porous evaporator medium 22 is provided on the inside of the peripheral wall 14. This preferably lines the peripheral wall 14 in its entire circumferential area and approximately in the entire extension region of the combustion chamber 18. This porous evaporator medium 22 can receive liquid fuel, distribute it by Kapillarrant Angel in its internal volume range and then evaporate at the surface exposed to the combustion chamber 18 toward.
  • a porous evaporator medium 24 is provided, which is where the projection 20 in its first end portion 26 connects to the peripheral wall 14, in contact with the porous evaporator medium 22.
  • the approach 20 further opens a fuel supply 28, in a region in which the projection 20 is lined with the porous evaporator medium 24. Liquid fuel is thus fed via the line 28 into the batch 20 and there into the porous evaporator medium 24.
  • the evaporator medium 24 provides a Kapillar tone bin so that it on the one hand distributed from the line 28 liquid fuel in its interior volume range and thus distributed over the circumference of the projection 20, on the other hand, but also due to the connection to the porous evaporator medium 22 in the combustion chamber 18 fuel in this porous evaporator medium 22 initiates for further distribution therein and for evaporation in the combustion chamber 18th
  • the ignition element receiving projection 20 carries an ignition element 34 in its carrier region 32.
  • the carrier region 32 can extend into the ignition element receiving projection 20 or cover its front side, thus providing a stable holding by clamping action or optionally also threaded engagement of the ignition device 34 to obtain.
  • the ignition air required for starting the combustion in the region of such an ignition element receiving attachment 20 enters via at least one ignition air inlet opening 38 which is provided in the end region 30 or near the end region 30 in the ignition element receiving attachment 20.
  • This ignition air inlet opening 38 may be covered by the porous evaporator medium 24.
  • the porous evaporator medium 24 may also have a Zündluft tell trecsö réelle 40.
  • the resulting in combustion in the Zündorganingansatz 20 flame can then propagate through an opening 42 in the peripheral wall 14 into the combustion chamber 18 and ignite there also formed ignitable or combustible mixture.
  • a combustion chamber assembly for an evaporator burner in particular for a vehicle heater, according to claim 1.
  • This comprises a combustion chamber delimiting a combustion chamber housing with at least one Zündorganingansatz on a wall, wherein on an inner side of the Zündorganingansatzes a porous evaporator medium is provided and a Brennstoffzumoltechnisch for feeding liquid fuel into the porous evaporator medium into the Zündorganamsatz, wherein on the Zündorganingansatz an extending into this ignition device is worn.
  • the ignition element is carried on the porous evaporator medium on the Zündorganinganthesis.
  • the ignition element is no longer carried directly, but rather via the porous evaporator medium on the ignition element receiving approach, there is substantially no direct heat transfer contact between the ignition element and the ignition element receiving approach. Thus, no direct heat transfer can take place.
  • the porous evaporator medium basically represents a comparatively poor heat conductor with its pore structure, excessive heating of the Zündorganingansatzes, which leads to the risk of forming deposits, largely excluded.
  • the ignition device a Carrier portion, and that the support portion is carried on the porous evaporator medium on the Zündorganingansatz.
  • This carrier region can then be dimensioned and constructed of such material that, on the one hand, a stable holding functionality is ensured in the porous evaporator medium, on the other hand, a certain thermal insulation between the porous evaporator medium and that region of the ignition element is already present here, in which this constitutes the Ignition required high temperatures generated.
  • the carrier region extends into an end region of the ignition element receiving attachment which is remote from the peripheral wall and that the ignition device receiving attachment is lined at least in the end region with the porous evaporator medium over substantially its entire circumference.
  • the carrier region covers an end face of the porous evaporator medium at least partially.
  • At least one air inlet opening be provided in a region of the Zündorganingansatzes lined by the porous evaporator medium, which may be advantageously provided that at least one air passage opening in the porous evaporator medium is provided in association with the at least one air inlet opening in the Zündorganitsatz.
  • the present invention further relates to a heater, as it is preferable can be used in a vehicle as a heater or heater, with an evaporator burner having a combustion chamber assembly constructed according to the invention.
  • FIG. 2 the essential areas of a combustion chamber assembly 10 designed according to the invention are shown. It should be noted that, of course, in terms of its basic construction, this combustion chamber assembly 10 may be constructed as previously described with reference to FIGS Fig. 1 described.
  • this porous evaporator medium can be formed with basically substantially cylindrical structure and can be constructed of nonwoven material, braid, foam ceramic, fabric material or the like and is generally referred to as a candle screen.
  • FIG. 2 the carrier region 32, wherein it should already be noted that right with respect to the longitudinal axis L and left with respect to the longitudinal axis L in Fig. 2 two different variants of this support portion 32 are shown.
  • An ignition region 44 is carried on the carrier region 32, which in its inner region has, for example, an incandescent filament or assemblies which heat up during electrical excitation, in which the volume region surrounding the ignition region 44 and surrounded by the porous evaporator medium 24 is primarily an ignitable one Mixture of combustion air and fuel vapor will be present to start the combustion.
  • the carrier region 32 is designed or dimensioned so that it can be pushed into the end region 30 of the Zündorganingansatzes 20, and indeed in the existing therein porous evaporator medium 24. Since this porous evaporator medium 24 is preferably cylindrical, so the Zündorganingansatz 20 at Its entire circumferential area around the longitudinal axis L around, it also surrounds the imported into the Zündorganingansatz 20 portion of the support portion 32 completely, so that it is held stable.
  • a certain oversizing of the carrier region 32 may be provided on its outer circumference with respect to the inner circumference of the porous evaporator medium 24, so that a certain interference fit or press-holding effect is achieved, taking into account the compressibility of the porous material of the evaporator medium 24.
  • the support region 32 which may also preferably be constructed of comparatively poorly thermally conductive material, such as ceramic or plastic material, is formed with a substantially cylindrical outer peripheral structure, ie without thickness variation, so that an end face 46 the porous evaporator medium 24 is exposed here.
  • the support portion 32 is formed with a step-like extension 48, which covers the end face 46 radially outward and in the circumferential direction and thus prevents the porous structure of the porous evaporator medium 24 is axially open here and therefore an additional entry of air can take place or no unwanted evaporation of fuels can be done to the outside.
  • This step-like widening 48 is formed such that it extends maximally to the outer circumference of the porous evaporator medium 24, that is to say essentially likewise has no direct contact with the Zündorganeauansatz constructed generally of metal material.
  • a wall 50 which surrounds the combustion chamber assembly 10 and thus defines a generally designated 52 Plenumshunt through which the in the combustion chamber 18 and in the or Zündorgan techniquean accounts 20 air to be introduced is promoted.
  • the air conveyed by a heated air blower can then flow toward a heat exchanger area, not shown here, of a heater equipped with such a combustion chamber assembly 10.
  • the line 36 over which the Igniter 34 can be electrically excited, passes through an opening 54 in the wall 50 and is sealed by a flexible insert 58, for example made of rubbery material, on the one hand with respect to the wall 50 and on the other hand supported, so that due to the basically defined positioning of the wall 50 with respect the Zündorganingansatz 20 an additional support effect for the ignition device 34 can be achieved and in particular this can be secured against pulling out of the Zündorganingansatz 20.
  • a flexible insert 58 for example made of rubbery material
  • the inventive holder of an ignition device on a Zündorganoramsatz with the significantly limited heat transfer to the Zündorganoritsatz with nevertheless stable support the risk of the formation of deposits in the Zündorganingansatzes and in particular in the region of the openings through which the ignition air flows, can be prevented.
  • a plurality of such Zündorganfactanticiane can be provided on a peripheral wall 14 of a combustion chamber assembly 10, which can of course also be arranged with a substantially radial extent.

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)

Claims (7)

  1. Un module de chambre de combustion pour un brûleur d'évaporation, en particulier pour un dispositif de chauffage d'un véhicule, comprenant un boîtier de chambre de combustion (12) enfermant une chambre de combustion (18) avec au moins une projection de réception d'un élément d'allumage (20) à un paroi circonférentiel (14), la projection de réception d'un élément d'allumage (20) étant ouverte envers la chambre de combustion (18) via une ouverture (42) dans le paroi circonférentiel (14) dans une section (26) proche du paroi circonférentiel (14), et un medium d'évaporation poreux (24) étant prévu à un côté intérieur de la projection de réception d'un élément d'allumage (20), et un conduit d'alimentation en combustible (28) pour alimenter le medium d'évaporation poreux (24) en combustible liquide débouchant dans la projection de réception d'un élément d'allumage (20), un élément d'allumage (34), s'étendant dans la projection de réception d'un élément d'allumage (20), étant supporté à la section terminale, éloignée (30) du paroi circonférentiel (14), de la projection de réception d'un élément d'allumage (20),
    caractérisé par
    l'élément d'allumage (34) étant supporté à la projection de réception d'un élément d'allumage (20) via le medium d'évaporation poreux (24).
  2. Un module de chambre de combustion selon la revendication 1, caractérisé par l'élément d'allumage (34) comprenant une section de support (32) et par la section de support (32) étant supporté à la projection de réception d'un élément d'allumage (20) via le medium d'évaporation poreux (24).
  3. Un module de chambre de combustion selon la revendication 2, caractérisé par la section de support (32) s'étendant dans une section terminale (30) de la projection de réception d'un élément d'allumage (20) éloignée du paroi circonférentiel (14) et par la projection de réception d'un élément d'allumage (20) étant au moins dans la section terminale (30) couvert (24) par le medium d'évaporation poreux (24) essentiellement à travers toute sa circonférence.
  4. Un module de chambre de combustion selon les revendications 2 ou 3, caractérisé par la section de support (32) recouvrant au moins partiellement un front du medium d'évaporation poreux (24).
  5. Un module de chambre de combustion selon une des revendications 1 à 4, caractérisé par au moins une ouverture d'entrée d'air (38) étant prévue dans une section de la projection de réception d'un élément d'allumage (20) recouverte du medium d'évaporation poreux (24).
  6. Un module de chambre de combustion selon la revendication 5, caractérisé par au moins une ouverture de passage d'air (40) étant prévue dans le medium d'évaporation poreux (24) en association à la au moins une ouverture d'entrée d'air (38) dans la projection de réception d'un élément d'allumage (20).
  7. Un dispositif de chauffage, en particulier pour un véhicule, comprenant un brûleur d'évaporation avec un module de chambre de combustion (10) selon une des revendications précédentes.
EP08018651A 2007-12-20 2008-10-24 Assemblage d'une chambre de combustion por brûleur à évaporation, en particulier pour appareil de chauffage pour automobile et utilisation dans un dispositif de chauffage Not-in-force EP2072898B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007061518A DE102007061518A1 (de) 2007-12-20 2007-12-20 Brennkammerbaugruppe für einen Verdampferbrenner, insbesondere für ein Fahrzeugheizgerät

Publications (2)

Publication Number Publication Date
EP2072898A1 EP2072898A1 (fr) 2009-06-24
EP2072898B1 true EP2072898B1 (fr) 2011-01-26

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Application Number Title Priority Date Filing Date
EP08018651A Not-in-force EP2072898B1 (fr) 2007-12-20 2008-10-24 Assemblage d'une chambre de combustion por brûleur à évaporation, en particulier pour appareil de chauffage pour automobile et utilisation dans un dispositif de chauffage

Country Status (3)

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EP (1) EP2072898B1 (fr)
AT (1) ATE497129T1 (fr)
DE (2) DE102007061518A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529994C2 (de) * 1994-11-10 2003-06-26 Eberspaecher J Gmbh & Co Verdampferbrenner für ein Heizgerät
DE10004507A1 (de) * 2000-02-02 2001-08-09 Eberspaecher J Gmbh & Co Heizgerät, insbesondere motorunabhängige Fahrzeugheizung
DE10209967C5 (de) * 2002-03-07 2009-01-29 J. Eberspächer GmbH & Co. KG Verdampferelement für einen Verdampferbrenner
DE10219633C1 (de) * 2002-05-02 2003-12-04 Eberspaecher J Gmbh & Co Verdampferbrenner
DE10343282B3 (de) * 2003-09-18 2005-04-21 J. Eberspächer GmbH & Co. KG Brenneranordnung, insbesondere für ein Fahrzeugheizgerät
DE102004057271B4 (de) * 2004-11-26 2008-04-24 Webasto Ag Baugruppe für ein Heizgerät sowie Vefahren zur Herstellung derselben
DE102005045067A1 (de) * 2005-09-21 2007-03-22 J. Eberspächer GmbH & Co. KG Reformer zur Bereitstellung von Wasserstoff, insbesondere für eine Brennstoffzelle in einem Fahrzeug
DE102005055642A1 (de) 2005-11-22 2007-05-24 J. Eberspächer GmbH & Co. KG Brennkammerbaugruppe für einen Verdampferbrenner
DE102006013241A1 (de) * 2006-03-22 2007-09-27 J. Eberspächer GmbH & Co. KG Zündbaugruppe für eine Brennkammerbaugruppe eines Fahrzeugheizgerätes

Also Published As

Publication number Publication date
DE102007061518A1 (de) 2009-06-25
EP2072898A1 (fr) 2009-06-24
ATE497129T1 (de) 2011-02-15
DE502008002461D1 (de) 2011-03-10

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