EP1589298B1 - Appareil de chauffage, en particulier pour véhicule - Google Patents

Appareil de chauffage, en particulier pour véhicule Download PDF

Info

Publication number
EP1589298B1
EP1589298B1 EP20050007314 EP05007314A EP1589298B1 EP 1589298 B1 EP1589298 B1 EP 1589298B1 EP 20050007314 EP20050007314 EP 20050007314 EP 05007314 A EP05007314 A EP 05007314A EP 1589298 B1 EP1589298 B1 EP 1589298B1
Authority
EP
European Patent Office
Prior art keywords
combustion
guide element
product guide
section
combustion product
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 - Fee Related
Application number
EP20050007314
Other languages
German (de)
English (en)
Other versions
EP1589298A2 (fr
EP1589298A3 (fr
Inventor
Walter Blaschke
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 EP1589298A2 publication Critical patent/EP1589298A2/fr
Publication of EP1589298A3 publication Critical patent/EP1589298A3/fr
Application granted granted Critical
Publication of EP1589298B1 publication Critical patent/EP1589298B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/263—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body with a dry-wall combustion chamber

Definitions

  • the present invention relates to a heater, in particular for a vehicle, according to the preamble of claim 1, such as can be used as a heater or heater to produce by combustion of generally liquid fuel and combustion air hot combustion products and transported in these products of combustion Heat to be heated to a medium to be heated, so for example, to be introduced into a vehicle interior air or a liquid medium in a heat exchanger assembly.
  • the combustion products generally emerge from an open end of the tube-like or generally cylindrical flame tube and meet there on the bottom region of a generally cup-shaped heat exchanger arrangement surrounding the flame tube. Due to the fact that even in the region of the flame tube when flowing through it will still take place combustion, so moves the Combustion also closer to the bottom of the heat exchanger assembly zoom with the result that even when hitting the bottom wall complete combustion has not yet taken place and will not take place by the spontaneous cooling and. The consequence of this is increased CO emissions.
  • the conventional design of the flame tube which is open in its discharge end region, but otherwise essentially a closed, cylindrical component, further leads to the problem that the emerging from the flame tube, deflected at the bottom portion of the heat exchanger assembly and then between the flame tube and a peripheral region the combustion products flowing the heat exchanger assembly form a stratified flow, wherein the layer which flows along the surface of the peripheral region of the heat exchanger assembly, although their heat transfer comparatively well to the heat exchanger assembly, while that flow layer which flows substantially along the outer surface of the flame tube, for heat transfer can contribute to the heat exchanger arrangement only reduced.
  • the GB 348 264 A discloses a heater according to the preamble of claim 1.
  • the combustion product guide member of this known heater is completed in its remote from a combustion chamber outlet end region by a spherical cap-like end face.
  • a plurality of outlet openings is arranged in a plurality of rings of such outlet openings.
  • the combustion product guide element in the direction of its longitudinal axis is not open as usual, but is basically completed or limited by a wall.
  • the impact of the entire combustion product flow on the bottom portion of the heat exchanger assembly can thus be prevented.
  • the outlet openings provided in the outlet end region of the combustion product guide element then ensure a defined distribution of the combustion product flow during the transition into the heat transfer flow space and thus a more uniform and therefore more efficient flow to the bottom region and the peripheral region of the heat exchanger arrangement.
  • the transition between the interior region of the combustion product guide element and the heat transfer flow region through a plurality of outlet openings causes a turbulent flow transition. This supports on the one hand a possibly still ongoing combustion, on the other hand, however, also has the consequence that the formation of a Layer flow, as described above, can be largely prevented.
  • outlet openings are formed in the bottom wall and / or a circumferential wall of the combustion product guide element.
  • a total flow cross-sectional area provided by all the outlet openings in the outlet end region is smaller than a flow cross-sectional area provided by the tubular combustion product-conducting element.
  • heat transfer ribs are provided on a side of the circumferential area of the heat exchanger arrangement facing the heat transfer flow space and that no heat transfer ribs or heat transfer ribs with a smaller rib height are provided in the portion of the peripheral area surrounding the discharge end area.
  • the combustion product guide element with its bottom wall and its peripheral wall is positioned substantially parallel to the bottom region or to the peripheral region of the heat exchanger arrangement in the outlet end region.
  • a combustion chamber region is provided which has, for example, a pot-shaped combustion chamber housing 14 with a combustion chamber 16 formed therein. Over a plurality of combustion air inlet openings 18, the combustion air supplied by an unillustrated combustion air blower enters the combustion chamber 16.
  • the fuel also required for combustion can be provided, for example, by evaporation from a porous evaporator medium, not shown. The combustion can be started by a likewise not shown ignition element.
  • the combustion products exiting from the combustion chamber 16 first pass through a flame shutter 20 and thus reach the inlet end region 22 of a combustion product guide element 24 which acts as a flame tube.
  • This flame tube or combustion product guide element 24 for example made of sheet metal or other metal material, of ceramic heating material or the like. can be made, has an approximately cylindrical and in the direction of a longitudinal axis L extending Umfansgwandung 26. In an exit end region 28, this circumferential wall 26 merges into a bottom wall 30 which terminates or terminates the flame tube 24 in the direction of the longitudinal axis L.
  • outlet openings 32 are provided at the outlet end region 28. These outlet openings 32 are distributed both on the peripheral wall 26 and the bottom wall 30th
  • the flame tube or combustion product guide element 24 is surrounded by a heat exchanger arrangement, generally designated 34.
  • This includes according to well-known design two approximately pot-shaped housing components 36, 38, which between them a volume range 40, which is flowed through by a medium to be heated, so for example air or water.
  • the heat exchanger assembly 34 basically comprises a peripheral wall portion 42, substantially provided by peripheral walls 44, 46 of the housing members 36, 38, and a bottom portion 48, substantially provided by bottom walls 50, 52 of the housing members 36, 38. At their bottom walls 50, 52nd remote end portions, the two housing components 36, 38 in the region of their peripheral walls 44, 46 fixedly and fluid-tightly connected.
  • a heat transfer flow space is formed between the fire tube 24 and the inner housing member 36.
  • the heat-transporting combustion products transfer heat to the housing member 36, which in turn transfers that heat to the medium to be heated circulating in the volume region 40.
  • a plurality of heat transfer ribs 58 extending in the direction of the longitudinal axis L and distributed in the circumferential direction are formed on the side of the peripheral wall 44 of the inner housing component 36 facing the flame tube 24 or the flow space 54. These enlarge the contact surface for heat transfer.
  • these heat transfer ribs 58 end before the bottom wall 50, so that substantially in the outlet openings formed in the Umfansgwandung 26 of the flame tube 24 32 opposite region on the housing member 36, no ribs or ribs with a smaller rib height and thus greater distance from the flame tube 24 are provided.
  • the flame tube 24 By configuring the flame tube 24 with the bottom wall 32, that is, the fundamental completion of the flame tube 24 in the direction of its longitudinal axis L at the outlet end region 28, and providing a plurality of distributed outlet openings various advantages are achieved. First, it is ensured that not the entire stream of hot combustion products impinges on the bottom region 48 of the heat exchanger arrangement 34, ie the bottom wall 50 of the inner housing component 36. This leads to a considerable thermal relief of this area of the heat exchanger arrangement 34 and an enlargement of that surface on which the hot combustion products emerging from the flame tube 24 impinge directly on the heat exchanger arrangement 34. Furthermore, by providing the outlet openings 32, stronger turbulence formation of the combustion products entering the flow space 54 is forced.
  • the total flow cross-sectional area provided by the openings 32 is smaller than the passage area generally provided by the flow cross-section of the flame tube 24. This ensures a flow acceleration of the combustion products passing through the openings 32 and an even greater turbulence formation.
  • This turbulence formation in turn has the consequence that in the event that the combustion was not completely completed when leaving the flame tube 24, increased support for this combustion can be obtained, and has the further advantage that the formation of a layer flow can be prevented in an improved manner can.
  • This also has effects on the further flow of the combustion products in the flow space 24, so that even there layer flow can be increasingly prevented.
  • the turbulence formation and the defined outflow from the flame tube 24 can also be assisted in that the openings 32 are not in one regular pattern and of uniform size, but that, for example, a more or less irregular distribution of the same on the peripheral wall 26 and / or the bottom wall 30 is provided. In this way, at the same time an influencing of the preferred outflow direction or outflow quantity can be achieved.
  • the combustion products in the flow space 54 preferably flow in the region which leads substantially directly towards the outlet 56.
  • the combustion products in the representation of Fig. 1 If it is directed towards the top, then a flow through those volume areas of the flow space 54 that are farther from the outlet 56 is forcibly obtained. Since in the inventively designed flame tube 54 in the region of the peripheral wall 26 of the flame tube 24, a substantially vertical flow of the surface of the housing member 36 can be obtained, thereby an improved heat transfer to this housing member 36 is ensured.
  • the use of suitable materials for example for the flame tube 24, such.
  • the already mentioned ceramic heater material silicon carbide

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Wick-Type Burners And Burners With Porous Materials (AREA)

Claims (5)

  1. Appareil de chauffage, en particulier pour un véhicule, comprenant:
    - une section de chambre de combustion (12) pour brûler du combustible et pour produire des produits de combustion chauds,
    - un élément de guidage de produit de combustion (24) sous forme d'un tube prévoyant une section finale d'entrée (22) par laquelle les produits de combustion quittant une chambre de combustion (16) entrent dans l'élément de guidage de produit de combustion (24) et prévoyant une section terminale de sortie (28), par laquelle au moins une partie des produits de combustion quittent l'élément de guidage de produit de combustion (24),
    - un arrangement d'échangeur de chaleur (34) définissant un espace de flux de transfer de chaleur (54) avec l'élément de guidage de produit de combustion (24) et étant formé essentiellement sous forme d'un pot avec une zone circonférentielle (42) entourant l'extérieur de l'élément de guidage de produit de combustion (24) et avec une zone de fond (48) succédant à la section terminale de sortie (28) dans la direction d'un axe longitudinal (L) de l'élément de guidage de produit de combustion (24), l'élément de guidage de produit de combustion (24) sous forme d'un tube étant clôturé dans sa section terminale de sortie (28) dans la direction de l'axe longitudinal (L) par un paroi de fond (30) et prévoyant une pluralité d'ouvertures de sortie (32) pour laisser sortir des produits de combustion de l'élément de guidage de produit de combustion (24) dans l'espace de flux de transfer de chaleur (54),
    caractérisé par au moins une partie des ouvertures de sortie (32) prévues dans la section terminale de sortie (28) présentant des formes de section transversale différentes ou/et des surfaces de sections de flux différentes les unes par rapport aux autres,
    ou/et
    par les ouvertures de sortie (32) dans la section terminale de sortie (28) étant distribuées d'une manière inégale dans la direction circonférentielle.
  2. Appareil de chauffage selon la revendiation 1,
    caractérisé par les ouvertures (32) étant formées dans le paroi de fond (30) ou/et dans un paroi circonférentiel (26) de l'élément de guidage de produit de combustion (24).
  3. Appareil de chauffage selon la revendiation 1 ou 2,
    caractérisé par une surface totale de section du flux prévue par toutes les ouvertures de sortie (32) dans la section terminale de sortie (28) étant plus petite qu'une surface de section de flux prévue par l'élément de guidage de produit de combustion (24) sous forme d'un tube.
  4. Appareil de chauffage selon une des revendiations 1 à 3,
    caractérisé par des renforts de transfer de chaleur (58) étant prévus à une face de l'espace circonférentiel (42) de l'arrangement d'échangeur de chaleur (34) tournée vers l'espace de flux de transfer de chaleur (54) et par non pas de renforts de transfer de chaleur ou des renforts de transfer de chaleur avec des renforts moins hauts étant prévus dans la partie de la section circonférentielle (48) qui entoure la section terminale de sortie (28).
  5. Appareil de chauffage selon une des revendiations 1 à 4,
    caractérisé en ce que dans la section terminale de sortie (28) l'élément de guidage de produit de combustion (24) sous forme d'un tube avec son paroi de fond (36) et son paroi circonférentiel (26) est positionné essentiellement d'une manière parallèle à la section de fond (48) ou bien à la section circonférentielle (42) de l'arrangement d'échangeur de chaleur (34).
EP20050007314 2004-04-23 2005-04-04 Appareil de chauffage, en particulier pour véhicule Expired - Fee Related EP1589298B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004019870 2004-04-23
DE200410019870 DE102004019870A1 (de) 2004-04-23 2004-04-23 Heizgerät, insbesondere für ein Fahrzeug

Publications (3)

Publication Number Publication Date
EP1589298A2 EP1589298A2 (fr) 2005-10-26
EP1589298A3 EP1589298A3 (fr) 2006-09-06
EP1589298B1 true EP1589298B1 (fr) 2010-07-07

Family

ID=34934735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050007314 Expired - Fee Related EP1589298B1 (fr) 2004-04-23 2005-04-04 Appareil de chauffage, en particulier pour véhicule

Country Status (3)

Country Link
EP (1) EP1589298B1 (fr)
DE (2) DE102004019870A1 (fr)
RU (1) RU2290327C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102008034139B4 (de) 2008-07-22 2022-11-10 Eberspächer Climate Control Systems GmbH Heizgerät, insbesondere für ein Fahrzeug
DE102011004159A1 (de) * 2011-02-15 2012-08-16 J. Eberspächer GmbH & Co. KG Wärmetauscheranordnung, insbesondere für ein brennstoffbetriebenes Fahrzeugheizgerät
DE102013020469A1 (de) * 2013-12-06 2015-06-11 Webasto SE Wärmeübertrager und Verfahren zum Herstellen eines Wärmeübertragers
DE102017119077A1 (de) * 2017-08-21 2019-02-21 Eberspächer Climate Control Systems GmbH & Co. KG Fahrzeugheizgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB348264A (en) * 1930-03-04 1931-05-14 Thomas Clarkson Improvements in or relating to water heaters or steam generators
DE3136839A1 (de) * 1981-09-16 1983-03-31 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Fahrzeugheizung
DE4430196C1 (de) * 1994-08-25 1996-01-18 Eberspaecher J Fahrzeugheizgerät mit Flammenwächter
DE10019890C2 (de) * 2000-04-20 2003-05-22 Webasto Thermosysteme Gmbh Brenner mit Flammrohr
DE10146610A1 (de) * 2001-09-21 2003-04-24 Eberspaecher J Gmbh & Co Wärmetauscheranordnung für eine Heizeinrichtung, insbesondere eine Kraftfahrzeugheizung

Also Published As

Publication number Publication date
RU2005112099A (ru) 2006-10-27
EP1589298A2 (fr) 2005-10-26
EP1589298A3 (fr) 2006-09-06
DE102004019870A1 (de) 2005-11-17
DE502005009849D1 (de) 2010-08-19
RU2290327C1 (ru) 2006-12-27

Similar Documents

Publication Publication Date Title
DE3715712C1 (de) Waermetauscher insbesondere zum Kuehlen von Spaltgas
EP1860379B1 (fr) Composant d'évaporateur, en particulier pour un appareil de chauffage de véhicule ou un dispositif de réformateur de carburant d'un système à cellules combustibles
DE2139504C3 (de) Heizgerät für mobile Einheiten
EP1589298B1 (fr) Appareil de chauffage, en particulier pour véhicule
DE3213161C2 (fr)
EP1681519A2 (fr) Echangeur de chaleur et appareil de chauffage pour véhicules avec un tel échangeur de chaleur
WO2008061510A2 (fr) Brûleur pour appareil de chauffage destiné à la combustion de combustibles liquides ou gazeux et unité comprenant un brûleur et un échangeur de chaleur
DE60225654T2 (de) Wärmetauscher für Umluftherde, insbesondere zum Backen
DE2349202A1 (de) Kessel fuer zentralheizungsanlagen
DE2556453A1 (de) Waermetauscher und verfahren zum kuehlen heisser gase
DE1802196A1 (de) Brennereinheit fuer Heizkoerper
DE4207500C2 (de) Heizkessel mit verringerter NO¶x¶-Emission
EP1327820A1 (fr) Atténuateur actif de bruit pour systèmes de gaz d'échappement
EP0451234B1 (fr) Chaudiere pour combustibles liquides ou gazeux
DE2410893C2 (de) Ventilkorb für Brennkraftmaschinen
DE2107514A1 (de) Vorrichtung zum Heizen mit Infrarot Strahlung
EP1445552B1 (fr) Installation de chauffage de voitures
EP1389295A1 (fr) Echangeur thermique pour rechauffer un produit, en particulier une masse pour produire des confiseries
DD150105A5 (de) Zweikammer-heizkessel
DE2906362C2 (de) Heizungskessel für flüssige oder gasförmige Brennstoffe
DE2749089A1 (de) Ofen
DE2518067A1 (de) Waermetauscher und dessen verwendung zum kuehlen heisser gase
DE1501777C3 (de) Verbrennungskammer für Heizvorrichtungen, insbesondere für Lufterhitzer
DE19929465C1 (de) Brennstoffbetriebene Heizvorrichtung mit optimierter Verbrennungsgasführung
DE10203116B4 (de) Heizgerät mit einem becherförmigen Wärmeübertrager

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

17P Request for examination filed

Effective date: 20070306

AKX Designation fees paid

Designated state(s): CZ DE PL SE

17Q First examination report despatched

Effective date: 20090625

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CZ DE PL SE

REF Corresponds to:

Ref document number: 502005009849

Country of ref document: DE

Date of ref document: 20100819

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100707

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100707

26N No opposition filed

Effective date: 20110408

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005009849

Country of ref document: DE

Effective date: 20110408

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110405

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005009849

Country of ref document: DE

Representative=s name: WEICKMANN & WEICKMANN, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005009849

Country of ref document: DE

Owner name: EBERSPAECHER CLIMATE CONTROL SYSTEMS GMBH & CO, DE

Free format text: FORMER OWNER: J. EBERSPAECHER GMBH & CO. KG, 73730 ESSLINGEN, DE

Effective date: 20130607

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005009849

Country of ref document: DE

Representative=s name: WEICKMANN & WEICKMANN, DE

Effective date: 20130607

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005009849

Country of ref document: DE

Representative=s name: RUTTENSPERGER LACHNIT TROSSIN GOMOLL PATENT- U, DE

Effective date: 20130607

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005009849

Country of ref document: DE

Representative=s name: RUTTENSPERGER LACHNIT TROSSIN GOMOLL PATENT- U, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200430

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005009849

Country of ref document: DE

Representative=s name: RUTTENSPERGER LACHNIT TROSSIN GOMOLL, PATENT- , DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005009849

Country of ref document: DE

Owner name: EBERSPAECHER CLIMATE CONTROL SYSTEMS GMBH, DE

Free format text: FORMER OWNER: EBERSPAECHER CLIMATE CONTROL SYSTEMS GMBH & CO. KG, 73730 ESSLINGEN, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005009849

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211103