EP1927489B1 - Appareil de chauffage pour véhicule - Google Patents

Appareil de chauffage pour véhicule Download PDF

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Publication number
EP1927489B1
EP1927489B1 EP20070023086 EP07023086A EP1927489B1 EP 1927489 B1 EP1927489 B1 EP 1927489B1 EP 20070023086 EP20070023086 EP 20070023086 EP 07023086 A EP07023086 A EP 07023086A EP 1927489 B1 EP1927489 B1 EP 1927489B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
chamber housing
heating device
receiving recess
vehicle heating
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
EP20070023086
Other languages
German (de)
English (en)
Other versions
EP1927489A2 (fr
EP1927489A3 (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
Eberspaecher Climate Control Systems 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 Eberspaecher Climate Control Systems GmbH and Co KG filed Critical Eberspaecher Climate Control Systems GmbH and Co KG
Publication of EP1927489A2 publication Critical patent/EP1927489A2/fr
Publication of EP1927489A3 publication Critical patent/EP1927489A3/fr
Application granted granted Critical
Publication of EP1927489B1 publication Critical patent/EP1927489B1/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
    • F23D91/00—Burners specially adapted for specific applications, not otherwise provided for
    • F23D91/02—Burners specially adapted for specific applications, not otherwise provided for for use in particular heating operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/99009—Combustion process using vegetable derived fuels, e.g. from rapes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/21—Burners specially adapted for a particular use
    • F23D2900/21002—Burners specially adapted for a particular use for use in car heating systems

Definitions

  • the present invention relates to a vehicle heater according to the preamble of claim 1, as used in motor vehicles, for example, as a heater or auxiliary heater to provide heat at relatively low ambient temperatures by combustion of a mixture of fuel and air.
  • alternative fuels such as e.g. PME (vegetable methyl ester), for example rapeseed methyl ester, is becoming increasingly important. Since these are increasingly used as fuel for internal combustion engines in vehicles and generally fuel-powered vehicle heaters from the same tank and are therefore fed with the same fuel as the internal combustion engine in a vehicle, there is also the requirement for adaptation to such alternative fuels for such vehicle heaters ,
  • a problem with vehicle heaters which are themselves designed for fuels such as diesel or gasoline is that the temperature in the vicinity of those assemblies in which the combustion takes place is so high that, especially when PME is used as fuel in the fuel leading assemblies unwanted reactions of this fuel can occur with the atmospheric oxygen. This can affect the service life of such assemblies and lead to undesirable combustion behavior.
  • a vehicle heater according to the preamble of claim 1 is known from US Pat. No. 6,929,467 B2 known.
  • a Zündorganingansatz is provided with substantially circular inner contour on a peripheral wall of a combustion chamber housing, in which an ignition element is received, which has a corresponding circumferential contour in its support area.
  • the Zündorganingansatz is provided in this elongated, channel-like bulge, through which the air required for ignition can be introduced.
  • the US 2 404 841 A discloses a spark plug which is formed in a support portion with external thread and thus screwed into a corresponding receiving recess of a combustion chamber housing. Inside the spark plug is a helical shaped heating wire, whose helical contour is designed like a polygon. This results in several circumferential or longitudinal areas investment points, with which the heating wire to minimize the heat loss applied to a surrounding component.
  • a vehicle heater comprising a combustion chamber assembly having a combustion chamber housing, the combustion chamber housing having a peripheral wall and a bottom wall and in the neglectedswandung or bottom wall at least one receiving recess for an ignition device, wherein the ignition member is carried with a support portion in the receiving recess deart in that a passage for air to be conducted into the combustion chamber housing is formed between a surface of the combustion chamber housing delimiting the receiving recess and the support area being in a punctiform or line-like carrying contact with the surface at a plurality of circumferentially successive contact areas.
  • the passage comprises passageways formed between the contact areas.
  • the ignition element In the region of the ignition element are by electrical excitation of the same at least in the starting phase of a vehicle heater comparatively high temperatures generated to start the combustion.
  • Thermal contact of the ignition device with the combustion chamber housing also heats the latter, in particular in a region in which liquid fuel is increasingly fed at least in the starting phase. Due to the only point-like or line-like carrying contact between the ignition device or the support area of the same and the combustion chamber housing, the heat transfer is limited to a minimum and thus significantly reduces the heating of the combustion chamber housing.
  • the support region or the receiving recess has a substantially circular peripheral contour and the respective other assembly has a polygonal circumferential contour, contact areas being formed in corner regions of the polygonal circumferential contour. Due to the structurally simple feasibility, it is proposed that the receiving recess has the substantially circular peripheral contour and the carrying area has the polygonal circumferential contour.
  • the polygonal perimeter contour can be a triangle contour.
  • At least one Zündorganingansatz extending from the latter is formed on the peripheral wall of the combustion chamber housing, which provides the receiving recess with the surface.
  • combustion chamber housing is at least partially surrounded by a pressure chamber, which receives air from a fan and to which the passage is open.
  • This combustion chamber housing 14 in turn is constructed with a peripheral wall 16 and a bottom wall 18, in which an air inlet region with an air guide 20 for introducing air required for combustion in one in the combustion chamber housing 14 formed combustion chamber is provided.
  • To the combustion chamber housing 14 and the peripheral wall 16 of the same includes a flame tube 22, along which flow the combustion exhaust gases formed in the combustion chamber during combustion.
  • a dispensing nozzle 28 discharges the combustion gases out of the exhaust gas flow space 26 and to an exhaust gas routing system.
  • the heat exchanger housing 24 In its region lying in the region of the combustion chamber housing 14, the heat exchanger housing 24 has a step-like, radial extension 30 with an end face 32 formed thereon. At this end face, with interim storage of an intermediate bearing element 34, a radially outward-reaching, ring-like or flange-like fastening region 36 of the combustion chamber housing 14 abuts. This extends from the peripheral wall 16 and is formed integrally therewith, for example. By a plurality of not shown fastening bolts, such as bolts, the mounting portion 36 is fixed to the step-like extension 30 of the heat exchanger housing 24.
  • the exhaust gas flow space 26 is separated by a pressure chamber 38 surrounding the combustion chamber housing or the peripheral wall 16 and the floor area 18 by means of this fastening area 36.
  • the pressure space 38 is limited by an outer wall 40, which in the in Fig. 1 illustrated example is integrally formed with the heat exchanger housing 24 and connects to the radially outer region of the step-like extension 30.
  • a fan 42 e.g. Side channel blower, connected. This absorbs the air to be introduced into the pressure chamber 40 in the region of an intake opening 44 and discharges it into the pressure chamber 38 under the effect of a delivery wheel 46.
  • the blower 42 so the pressure chamber 38 is axially closed at its end remote from the exhaust gas flow chamber 26 end.
  • Zündorganingansatz 50 is provided on the combustion chamber housing 14. This approximately tangentially extending from the peripheral wall 16 extending Zündorganingansatz wearing in the Fig. 1 only with his outside of this approach extending, rear part shown ignition member 52, such as a Glühzündux. By exciting the same locally locally high temperatures are generated in the Zündorganingansatz that ignites the existing there mixture of air and fuel vapor and thus the combustion is started.
  • the Fig. 3 shows in section the Zündorganingansatz 50, which has a substantially circular or cylindrical configuration and thus on its inner side provides a surface 54 having a circular cylindrical contour and a receiving recess 55 for the ignition device 52 limited.
  • the ignition member 52 extends and is supported or supported for stable support with a support portion 56 on Zündorganingansatz 50.
  • the support portion 56 has primarily the functionality of the lateral support of the ignition member 52 with respect to the Zündorganingansatzes 50th
  • the support portion 56 is configured with a triangular circumferential contour and in the region of the corners 58, 60, 62 bears against the inner surface 54 of the Zündorganitsatzes 50.
  • three contact areas 64, 66, 68 are formed in which there is only a line-like carrying contact between the support area 56 and the Zündorganingansatz 50.
  • This air can mix with the introduced through the supply line 48, for example, in the field of Zündorganingansatzes 50 fuel or fuel vapor and then ignited upon excitation of the ignition device 52.
  • the igniter-receiving lug 50 may be partially open at its rearward end, but may have one or more openings 76 that provide communication between the pressure space 38 and the interior of the igniter-receiving lug 50.
  • the surface 54 could have a polygonal, for example, triangular surface contour, while then, for example, the support portion 56 could be circular, which would also lead to the generation of line-like contact areas.
  • a polygonal contour with more than three corners is also conceivable, with a minimum of corners also leading to a minimum of contact areas.
  • Other geometries, such as pyramidal elevations on the surface 54 or on the support portion 56, may also produce such point contact.

Landscapes

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

Claims (6)

  1. Dispositif de chauffage pour un véhicule, comprenant un module de chambre de combustion (12) avec un boîtier de chambre de combustion (14), le boîtier de chambre de combustion (14) comprenant une paroi circonférentielle (16) et une paroi de fond (18) et dans la paroi circonférentielle (16) ou la paroi de fond (18) au moins un évidement de réception (55) pour un élément d'allumage (52), l'élément d'allumage (52) étant supporté avec une zone de support (56) dans l'évidement de réception (55) de sorte qu'un passage (70, 72, 74) pour l'air à insérer dans le boîtier de chambre de combustion (14) soit formé entre une surface (54) du boîtier de chambre de combustion (14) définissant l'évidement de réception (55) et la zone de support (56), caractérisé par la zone de support (56) étant en contact de support sous forme de point ou de ligne avec la surface (54) à plusieurs zones de contact (64, 66, 68) et par le passage (70, 72, 74) comprenant des canaux de passage (70, 72, 74) entre les zones de contact (64, 66, 68) en succession dans la direction circonférentielle.
  2. Dispositif de chauffage pour un véhicule selon la revendication 1,
    caractérisé par la zone de support (56) ou l'évidement de réception (55) ayant un périmètre substantiellement circulaire et l'autre module respectif ayant un périmètre polygonal, des zones de contact (64, 66, 68) étant formées dans des parties de coin (60, 62, 64) du périmètre polygonal.
  3. Dispositif de chauffage pour un véhicule selon la revendication 2,
    caractérisé par l'évidement de réception (55) ayant le périmètre substantiellement circulaire et la zone de support (56) ayant le périmètre polygonal.
  4. Dispositif de chauffage pour un véhicule selon la revendication 2 ou 3,
    caractérisé par le périmètre polygonal étant un périmètre triangulaire.
  5. Dispositif de chauffage pour un véhicule selon une des revendications 1 à 4,
    caractérisé en ce que au moins une connexion de réception d'élément d'allumage (50) prévoyant l'évidement de réception (55) avec la surface (54), est formé à la paroi circonférentielle (16) du boîtier de chambre de combustion (14) et s'étend à l'écart de cette dernière.
  6. Dispositif de chauffage pour un véhicule selon une des revendications 1 à 5,
    caractérisé en ce que le boîtier de chambre de combustion (14) est au moins partiellement entouré d'un espace de pression (38) recevant de l'air d'une soufflerie (42) et envers lequel le passage (70, 72, 74) est ouvert.
EP20070023086 2006-11-29 2007-11-28 Appareil de chauffage pour véhicule Not-in-force EP1927489B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006056370A DE102006056370A1 (de) 2006-11-29 2006-11-29 Fahrzeugheizgerät

Publications (3)

Publication Number Publication Date
EP1927489A2 EP1927489A2 (fr) 2008-06-04
EP1927489A3 EP1927489A3 (fr) 2010-09-01
EP1927489B1 true EP1927489B1 (fr) 2015-05-13

Family

ID=39027069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070023086 Not-in-force EP1927489B1 (fr) 2006-11-29 2007-11-28 Appareil de chauffage pour véhicule

Country Status (2)

Country Link
EP (1) EP1927489B1 (fr)
DE (1) DE102006056370A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018117213A1 (de) * 2018-07-17 2020-01-23 Eberspächer Climate Control Systems GmbH & Co. KG Fahrzeugheizgerät
DE102019110949A1 (de) * 2019-04-29 2020-10-29 Eberspächer Climate Control Systems GmbH Fahrzeugheizgerät

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404841A (en) * 1942-07-11 1946-07-30 Selas Corp Of America Ignition device
DE3708745C1 (de) * 1987-03-18 1988-02-18 Eberspaecher J Mit Brennluft gekuehlte Gluehkerze fuer Heizgeraete
DE4328789C2 (de) * 1993-08-26 2001-03-29 Eberspaecher J Gmbh & Co Brenner eines Fahrzeugheizgeräts
DE10160655C2 (de) * 2001-12-11 2003-10-09 Eberspaecher J Gmbh & Co Brennkammerbaugruppe für ein Heizgerät

Also Published As

Publication number Publication date
EP1927489A2 (fr) 2008-06-04
DE102006056370A1 (de) 2008-06-05
EP1927489A3 (fr) 2010-09-01

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