EP1464893B1 - Dispositif de brûleur pour un appareil de chauffe et appareil de chauffe, en particulier appareil de chauffe de véhicule - Google Patents

Dispositif de brûleur pour un appareil de chauffe et appareil de chauffe, en particulier appareil de chauffe de véhicule Download PDF

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Publication number
EP1464893B1
EP1464893B1 EP04007837A EP04007837A EP1464893B1 EP 1464893 B1 EP1464893 B1 EP 1464893B1 EP 04007837 A EP04007837 A EP 04007837A EP 04007837 A EP04007837 A EP 04007837A EP 1464893 B1 EP1464893 B1 EP 1464893B1
Authority
EP
European Patent Office
Prior art keywords
flame tube
region
tube section
heating device
heat exchanger
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.)
Expired - Lifetime
Application number
EP04007837A
Other languages
German (de)
English (en)
Other versions
EP1464893A1 (fr
Inventor
Andreas Collmer
Patric Schlecht
Jürgen Wagner
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 EP1464893A1 publication Critical patent/EP1464893A1/fr
Application granted granted Critical
Publication of EP1464893B1 publication Critical patent/EP1464893B1/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
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details
    • F23D11/40—Mixing tubes; Burner heads
    • F23D11/404—Flame tubes
    • 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 burner assembly for a heater, in particular vehicle heater, comprising a combustion chamber and a combustion products leading away from the combustion chamber flame tube with a combustion chamber near the inlet region in which combustion products enter the flame tube, and an outlet region in which combustion products from the Exude flame tube, as defined in the preamble of claim 1, and further relates to such a burner arrangement exhibiting heater, in particular vehicle heater.
  • a burner assembly according to the preamble of claim 1 is known from DE 100 19 890 A1 known.
  • a combustion tube leading the combustion flue or the combustion flame adjacent to a housing enclosing a combustion chamber, there is provided a combustion tube leading the combustion flue or the combustion flame.
  • the fire tube has a start portion and an end portion which adjoin one another in a transition region. In this transition region, a plurality of openings are provided in the flame tube, through which the combustion exhaust gases can escape in the region lying between the initial portion and the end portion of the flame tube.
  • the EP 0 483 520 A2 discloses a burner assembly in which an area in which the fuel ejected from a burner nozzle is burned is enclosed by a housing having a plurality of tubular, successive housing sections.
  • the tubular housing sections are substantially cylindrical and inserted into one another in such a way that openings are formed in a transition region through which the air required for combustion with the fuel can enter.
  • the DE 41 00 523 A1 discloses a combustion heater in which a combustion chamber is provided in a cylindrical housing and a flame tube is provided separated by a flame cover thereof.
  • the fire tube is open at an end region remote from the combustion chamber.
  • a burner assembly for a heater in particular a vehicle heater, comprising a combustion chamber and a flame tube leading the combustion products away from the combustion chamber with an inlet region near the combustion chamber, in which combustion products enter the flame tube, and an outlet region, in which combustion products exit from the flame tube, further comprising at least one intermediate discharge region between the inlet region and the outlet region, in which intermediate outlet region a part of the combustion waste gases can exit from the flame tube.
  • a distribution of the combustion exhaust gases leaving the combustion chamber at very high temperature is achieved for heating the fluid circulating in a heat exchanger arrangement over the length of the flame tube, so that also in an intermediate region or a region closer to the combustion chamber the flame tube combustion products can be provided at a higher temperature for the transfer of heat to a medium to be heated.
  • the flame tube has at least one intermediate outlet opening in the at least one intermediate outlet region.
  • the flame tube has at least two flame tube sections and that the at least one intermediate outlet opening is provided in a transitional region between an upstream one-with respect to a flow direction of the combustion products in the flame tube-and a downstream one of the flame tube sections.
  • the discharge of the combustion products from the flame tube in this region can then be made possible in a very simple manner in that an opening between the flame tube sections forms at least part of an intermediate outlet opening in the transition region.
  • the upstream flame tube section has a larger cross-sectional dimension than the downstream flame tube section, wherein furthermore preferably the downstream flame tube section engages the upstream flame tube section and at least part of an intermediate outlet opening is provided in the overlap region of the upstream flame tube section with the downstream flame tube section is.
  • the formation of the flame tube has with its with different cross-sectional dimensions formed flame tube sections with the result that in a closer to the inlet portion of the flame tube this has a larger outer dimension, as in an area near the exit region.
  • the flow space formed between the outer circumference of the flame tube and an inner surface of a heat exchanger housing surrounding it also has a corresponding cross-sectional change, in the sense that a larger flow cross-sectional area is present in the region of this flow space close to the outlet region, than in the region of the flow tube which is closer to the inlet region of the flame tube.
  • the downstream flame tube section be carried by at least one carrying region on the upstream flame tube section.
  • the upstream flame tube section and the downstream flame tube section are formed substantially cylindrical. It is thus possible to produce the two flame tube sections simply by cutting to length of sheet metal tubes.
  • the at least one intermediate outlet opening is formed in an outer wall of the flame tube.
  • a heating device in particular a vehicle heater, which is a device according to the invention
  • Burner assembly has, such as a heat exchanger assembly with a heat exchanger housing into which protrudes the flame tube.
  • a carrying structure for carrying at least one flame tube section is provided on a side facing the flame tube side of the heat exchanger housing.
  • a plurality of ribs extending in the longitudinal direction of the flame tube is provided on the heat exchanger housing, and for the carrying structure to comprise at least part of the ribs.
  • such ribs are already present in heat exchanger housings in order to increase the heat transfer surface and at the same time to be able to specify a defined flow direction for the combustion products.
  • Fig. 1 are parts of a trained according to the principles of the present invention vehicle heater 10 in longitudinal section, that is, cut along a longitudinal center axis L shown.
  • the vehicle heater 10 includes a burner assembly 1 2 and a heat exchanger assembly 14, of which only the components relevant to the principles of the present invention are shown.
  • the burner assembly 12 comprises a substantially cup-shaped combustion chamber housing 16, in which a combustion chamber 18 is formed.
  • Combustion air is introduced into the combustion chamber 18 via a combustion air inlet nozzle 20 provided centrally in the combustion chamber housing 16 under the effect of a combustion air blower (not shown).
  • fuel is introduced via a fuel supply, not shown, for example, by evaporation effect, so that in the combustion chamber 18, an ignitable or combustible fuel / air mixture is generated.
  • This brought to combustion for example, by a Glühzündelement produces a flame and combustion exhaust gases, the combustion chamber 18 at the in the Fig. 1 Leave left recognizable side and enter a generally designated 22 Flammrohr.
  • Recognizable flame tube 22 has two substantially cylindrically shaped flame tube sections 24, 26. It can be seen that these two flame tube sections 24, 26 have different dimensions.
  • the upstream of the combustion products R in the flame tube 22 positioned upstream of the flame tube section 24, which has a larger cross-sectional dimension is positioned adjacent to the combustion chamber housing 16 and forms an inlet region 28 of the flame tube 22, in which the combustion products in the flame tube 22 enter.
  • a flame shutter 30 is also carried in the flame tube 22 with a central passage opening 34 for the combustion products.
  • the flame tube section 26 which has a smaller cross-sectional dimension than the upstream flame tube section 24, forms in its end region remote from the combustion chamber 18 an outlet region 36 of the flame tube 22, in which the combustion products that have flowed up to this outlet region 36 emerge from the flame tube 22, such as shown by arrows P 1 .
  • This opening portion 40 defines an intermediate discharge portion 42, in which, as indicated by arrows P 2 , also combustion products that have flowed along the upstream flame tube portion 24 and in a near wall region thereof, can escape from the flame tube 22.
  • this intermediate outlet region 42 in which the mentioned opening region 40 forms an intermediate outlet opening 44, the two flame tube sections 24, 26 are also supported on one another.
  • Carrying portions 46 are provided, for example, soldered thereto, glued or otherwise fixed, the same as the flame tube section 26 engage in the flame tube section 24 and thus hold the two flame tube sections 24, 26 with respect to each other.
  • a definition by soldering or the like can also be done on the flame tube section 24.
  • an inner heat exchanger housing 48 is shown. This has a substantially pot-like structure with a bottom wall 50 and a peripheral wall 52. On the outside of the bottom wall 50 and the peripheral wall 52 so-called outer ribs 54 are provided which guide the circulating in the heat exchanger assembly 14 to be heated medium and transfer heat to this. On the inside of the heat exchanger housing 48, ie the side facing the flame tube 22, so-called inner ribs 56 are provided, which extend from the bottom region 50 in the longitudinal direction of the flame tube 22 substantially over the entire length of the heat exchanger housing 48 and the peripheral wall 52 thereof. These internal ribs 56 serve to increase the heat transfer area at which heat is transferred from the combustion products leaving the fire tube 22 to the heat exchanger housing 48, and also serve to give the combustion products flowing back to an outlet 59 a certain defined flow direction.
  • the combustion products leaving the combustion chamber 18 enter the upstream flame tube section 24 of the flame tube 22 in the inlet region 28 through the central opening 34 of the flame cover 30 and flow in the direction R toward the transition region 38.
  • Part of the combustion products now enters the combustion chamber Intermediate outlet region 42 from the flame tube 22 from.
  • the remaining part flows into the downstream flame tube section 26 and enters the Outlet region 36 from the flame tube 22 and is deflected there by the bottom portion 50 to flow back on the outside of the flame tube 22 along a formed between the outside of the flame tube 22 and the peripheral wall 52 of the heat exchanger housing 48 intermediate space 58.
  • the intermediate space 58 likewise has different cross-sectional dimensions. In the region in which it surrounds the flame tube section 26, the intermediate space 58 has a larger cross-sectional dimension than in the region in which it surrounds the flame tube section 24. It follows that a correspondingly reduced flow cross-section is provided for the already close to the outlet 59 and already much colder combustion products, which also claim a smaller volume (given pressure conditions), with the result of a uniform over the entire length range of the gap 58 Heat transfer to the heat exchanger housing 48th
  • Fig. 2 an alternative embodiment of the heater 10 according to the invention is shown.
  • Fig. 1 existing differences that are present in the area of the holder of the flame tube section 26 with the smaller cross-sectional dimension.
  • the inner ribs 56 have a greater extension length in their area 60 starting from the bottom area 50, starting from the circumferential wall 52 of the heat exchanger housing 48, than in a further downstream area 62 (downstream in the direction of flow of the combustion products in the gap 58).
  • the region 60 of the inner ribs 56 also extends over a partial length region of the flame tube section 26.
  • the ribs 56 are dimensioned in this region 60 so that their radially inwardly facing surfaces 64 form a support surface for the flame tube section 26 so that this between the in the circumferential direction distributed around it positioned inner surfaces 64 of the areas 60 of the inner ribs 56 is clamped.
  • the flame tube section 26 may have a longitudinal slot 66.
  • the shape of the inner ribs 56, at least in the rib area 60 can be such that they are to be provided when carrying out a casting operation Entformschräge has only a very small angle, so that at least in that region in which the outlet region 36 is formed on the flame tube section 26, a firm clamping effect of the wedge-like tapered to each other inner surfaces 64 on the flame tube section 26 is generated.
  • Fig. 3 One recognizes also in Fig. 3 in that the inner ribs 56 extend farther radially inward in their rib region 60 extending along the flame tube section 26 than in the rib region 62 surrounding the flame tube section 24.
  • the transition between the two rib regions 60, 62 is now essentially also in the transition region 38 between the two flame tube sections 24, 26 is provided.
  • the flame tube section 26, in its end region adjoining the flame tube section 24, has fixing lugs 68 bent radially outward at a plurality of circumferential positions.
  • rivet elements 72 are provided in the example shown, approximately in the direction of the longitudinal center axis L, which pass through openings in the tabs 68 and then form the tabs 68 and thus the flame tube section 26 by forming hold the inner ribs 56.
  • the rib areas 60 can be dimensioned so that they rest firmly against the flame tube section 26 with their inner surfaces 64, so that movements of the flame tube section 26 leading to rattling noises can not occur.
  • the attachment of the tabs 68 on the inner ribs 56 can not necessarily be made by rivet elements, but also by screw or the like. When using rivet elements these may be designed as blind rivets, but may also be provided as rivets formed on the step-like transition region 70.
  • the heating device according to the invention or the burner arrangement 12 can be modified therefor in a wide variety of areas.
  • the flame tube 22 may be formed again as a continuous material portion.
  • U-shaped incisions 74 can then be cut or stamped into the wall of this flame tube 22 so that the U opening is positioned downstream in the flame tube 22 relative to the flow direction R of the combustion products.
  • the tab 76 formed in this manner is bent inwardly so that it, as in Fig. 6 can be seen in the space surrounded by the flame tube 22 and projected by the combustion products in the direction R space region. In the area now released by a tab 76, an intermediate outlet opening 44 is formed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Spray-Type Burners (AREA)
  • Gas Burners (AREA)

Claims (11)

  1. Arrangement de brûleur pour un dispositif de chauffage, en particulier pour un dispositif de chauffage d'un véhicule, comprenant une chambre de combustion (18) et un tube de flamme (22) éloignant les produits de combustion de la chambre de combustion, avec une région d'entrée (28) près de la chambre de combustion (18), où des produits de combustion entrent dans le tube de flamme (22), et une région de sortie (36) où des produits de combustion sortent du tube de flamme (22), comprenant en outre au moins une région intermédiaire de sortie (42) entre la région d'entrée (28) et la région de sortie (36), une partie des gaz d'échappement pouvant sortir du tube de flamme (22) dans dette région intermédiaire de sortie (42),
    le tube de flamme (22) comprenant au moins une ouverture intermédiaire de sortie (44) dans la au moins une région intermédiaire de sortie (42),
    le tube de flamme (22) comprenant au moins deux sections de tube de flamme (24, 26) et la au moins une ouverture intermédiaire de sortie (44) étant prévue dans une région de transition (38) entre une section en amont (24) - par rapport à la direction du courant (R) des produits de combustion dans le tube de flamme - et une section en aval (26) des sections de tube de flamme (24, 26),
    caractérisé par la section de tube de flamme en amont (24) ayant une dimension de coupe transversale plus grande que la section de tube de flamme en aval (26).
  2. L'arrangement de brûleur selon la revendication 1,
    caractérisé par une ouverture (40) formant dans la section de transition (38) entre les sections de tube de flamme (24, 26) au moins une partie d'une ouverture intermédiaire de sortie (44).
  3. L'arrangement de brûleur selon la revendication 1 ou 2,
    caractérisé par la section de tube de flamme en aval (26) s'interposant dans la section de tube de flamme en amont (24) et par au moins une partie de l'ouverture intermédiaire de sortie (44) étant prévue dans la région de recouvrement de la section de tube de flamme en amont (24) avec la section de tube de flamme en aval (26).
  4. L'arrangement de brûleur selon une des revendications 1 à 3,
    caractérisé par la section de tube de flamme en aval (26) étant supportée par au moins une section de support (46) à la section de tube de flamme en amont (24).
  5. L'arrangement de brûleur selon une des revendications 1 à 4,
    caractérisé par la section de tube de flamme en amont (24) et la section de tube de flamme en aval (26) ayant une forme essentiellement cylindrique.
  6. L'arrangement de brûleur selon une des revendications 1 à 5,
    caractérisé par la au moins une ouverture intermédiaire de sortie (44) étant formée dans un paroi extérieur du tube de flamme (22).
  7. Dispositif de chauffage, en particulier dispositif de chauffage pour un véhicule, comprenant un arrangement de brûleur (12) selon une des revendications précédentes ainsi qu'un arrangement d'échangeur de chaleur (14) avec un boîtier d'échangeur de chaleur (48) dans lequel s'étend le tube de flamme (22).
  8. Dispositif de chauffage selon la revendication 7,
    caractérisé par une structure de support (60) pour supporter au moins une section de tube de flamme (26) étant prévue à un côté du boîtier d'échangeur de chaleur (48) tourné vers le tube de flamme (22).
  9. Dispositif de chauffage selon la revendication 8,
    caractérisé par une pluralité de renforts (56) s'étendant dans la direction longitudinale du tube de flamme étant prévus au boîtier d'échangeur de chaleur (48) et par la structure de support (60) comprenant au moins une partie des renforts (56).
  10. Dispositif de chauffage selon la revendication 9,
    caractérisé par la au moins une section de tube de flamme (26) étant supportée entre plusieurs renforts échelonnés sur sa circonférence par un effet de serrage.
  11. Dispositif de chauffage selon la revendication 9 ou 10,
    caractérisé par la au moins une section de tube de flamme (26) étant supportée à au moins un des renforts (56) par rivetage, vissage ou d'autres méthodes semblables.
EP04007837A 2003-04-01 2004-03-31 Dispositif de brûleur pour un appareil de chauffe et appareil de chauffe, en particulier appareil de chauffe de véhicule Expired - Lifetime EP1464893B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10314836 2003-04-01
DE10314836A DE10314836A1 (de) 2003-04-01 2003-04-01 Brenneranordnung für ein Heizgerät und Heizgerät, insbesondere Fahrzeugheizgerät

Publications (2)

Publication Number Publication Date
EP1464893A1 EP1464893A1 (fr) 2004-10-06
EP1464893B1 true EP1464893B1 (fr) 2011-09-21

Family

ID=32842206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04007837A Expired - Lifetime EP1464893B1 (fr) 2003-04-01 2004-03-31 Dispositif de brûleur pour un appareil de chauffe et appareil de chauffe, en particulier appareil de chauffe de véhicule

Country Status (5)

Country Link
US (1) US6872073B2 (fr)
EP (1) EP1464893B1 (fr)
JP (1) JP2004309126A (fr)
DE (1) DE10314836A1 (fr)
RU (1) RU2270401C2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005053514A1 (de) 2004-11-26 2006-07-06 Webasto Ag Luftheizgerät für ein Kraftfahrzeug
DE102005001662A1 (de) * 2005-01-13 2006-07-27 J. Eberspächer GmbH & Co. KG Wärmetauscherkörper und Fahrzeugheizgerät mit einem Wärmetauscherkörper
DE102006054821A1 (de) * 2006-11-21 2008-10-02 Webasto Ag Brenner für ein Heizgerät zur Verbrennung flüssiger oder gasförmiger Brennstoffe und Baugruppe aus einem Brenner und einem Wärmeübertrager
DE102011079018A1 (de) * 2011-07-12 2013-01-17 J. Eberspächer GmbH & Co. KG Fahrzeugheizgerät
DE102013216127B4 (de) * 2013-08-14 2015-03-19 Eberspächer Climate Control Systems GmbH & Co. KG Strömungsverdämmungselement, insbesondere zur Luftströmungsverdämmung in einem Luftkanalsystem eines Fahrzeugs
CN103836788A (zh) * 2014-02-27 2014-06-04 山西建工申华暖通设备有限公司 环绕送风整体式燃气热风炉
DE102014214768A1 (de) * 2014-07-28 2016-01-28 Eberspächer Climate Control Systems GmbH & Co. KG Wärmetauscheranordnung, insbesondere für ein Fahrzeugheizgerät
DE102018117213A1 (de) * 2018-07-17 2020-01-23 Eberspächer Climate Control Systems GmbH & Co. KG Fahrzeugheizgerät

Family Cites Families (18)

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GB954683A (en) * 1960-05-31 1964-04-08 Walter Eberspacher Heating means for motor vehicles
DE1454672A1 (de) * 1962-10-26 1969-05-22 Eberspaecher Fa Heizgeraet
DE2139504C3 (de) * 1971-08-06 1979-06-28 Fa. J. Eberspaecher, 7300 Esslingen Heizgerät für mobile Einheiten
DE3136839A1 (de) * 1981-09-16 1983-03-31 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Fahrzeugheizung
DE3233321C2 (de) 1982-09-08 1986-08-07 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Verdampfungsbrenner
US4729365A (en) * 1986-07-21 1988-03-08 Engineered Air Systems, Inc. Air heating apparatus and method
JPH0396521U (fr) 1990-01-12 1991-10-02
EP0483520A3 (en) 1990-10-02 1992-10-14 Vereinigte Aluminium-Werke Aktiengesellschaft Method and apparatus for the combustion of gaseous and liquid fuels generating a low emission of noxious products
DE29511384U1 (de) * 1995-07-14 1995-10-12 Fa. J. Eberspächer, 73730 Esslingen Verdampfungsbrennkammer für ein mit flüssigem Brennstoff betriebenes Heizgerät
RU2118754C1 (ru) * 1996-09-25 1998-09-10 Акционерное общество открытого типа "Институт по проектированию и конструированию тепловых агрегатов "Стальпроект" Радиационный трубчатый нагреватель
DE19720282B4 (de) * 1997-05-15 2007-09-27 J. Eberspächer GmbH & Co. KG Mit Flüssigbrennstoff betriebenes Luftheizgerät, insbesondere Zuheizer für Kraftfahrzeuge
DE19749821C1 (de) * 1997-11-11 1999-03-18 Webasto Thermosysteme Gmbh Heizgerät mit in den Wärmeübertrager integrierten Abgasauslaßstutzen
DE19802906A1 (de) * 1998-01-27 1999-07-29 Eberspaecher J Gmbh & Co Brennstoffbetriebenes Luftheizgerät
DE10019890C2 (de) 2000-04-20 2003-05-22 Webasto Thermosysteme Gmbh Brenner mit Flammrohr
RU14893U1 (ru) * 2000-05-23 2000-09-10 Холодков Юрий Васильевич Отопительное устройство транспортного средства
DE10060522B4 (de) * 2000-12-06 2004-07-22 J. Eberspächer GmbH & Co. KG Abgas-Schalldämpfer für ein brennstoffbetriebenes Heizgerät
DE10200524C5 (de) * 2002-01-09 2008-07-17 J. Eberspächer GmbH & Co. KG Brennkammerbaugruppe, insbesondere für ein Fahrzeugheizgerät
RU2200904C1 (ru) * 2002-05-15 2003-03-20 Кордит Евсей Аврумович Горелочное устройство

Also Published As

Publication number Publication date
US20040197723A1 (en) 2004-10-07
RU2270401C2 (ru) 2006-02-20
JP2004309126A (ja) 2004-11-04
DE10314836A1 (de) 2004-10-28
US6872073B2 (en) 2005-03-29
EP1464893A1 (fr) 2004-10-06
RU2004109907A (ru) 2005-09-20

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