EP0472120A2 - Gasburner - Google Patents

Gasburner Download PDF

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Publication number
EP0472120A2
EP0472120A2 EP91113723A EP91113723A EP0472120A2 EP 0472120 A2 EP0472120 A2 EP 0472120A2 EP 91113723 A EP91113723 A EP 91113723A EP 91113723 A EP91113723 A EP 91113723A EP 0472120 A2 EP0472120 A2 EP 0472120A2
Authority
EP
European Patent Office
Prior art keywords
nozzle plate
outlet openings
elevations
nozzle
nozzles
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.)
Granted
Application number
EP91113723A
Other languages
German (de)
French (fr)
Other versions
EP0472120A3 (en
EP0472120B1 (en
Inventor
Gerhard Weber
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.)
N.V. VAILLANT S.A.
Vaillant Austria GmbH
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
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 Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd filed Critical Vaillant Austria GmbH
Publication of EP0472120A2 publication Critical patent/EP0472120A2/en
Publication of EP0472120A3 publication Critical patent/EP0472120A3/en
Application granted granted Critical
Publication of EP0472120B1 publication Critical patent/EP0472120B1/en
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
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means

Definitions

  • the innovation relates to a nozzle plate provided with a number of outlet openings.
  • Such nozzle plates in which the outlet openings are arranged distributed over the entire surface of the nozzle plate, are relatively expensive if they are produced as die-cast or extruded parts.
  • the aim of the invention is to avoid this disadvantage and to propose a nozzle plate of the type mentioned at the outset which is cheaper.
  • the nozzle plate is formed in two parts, consisting of two sheet metal shells, and the upper part is produced by deep drawing and provided with elevations and is designed to be dimensionally stable, whereas the lower part is provided with incorporated grooves which run in the area of the axes along which the elevations of the upper part are arranged, are incorporated, the The lower part is less rigid and is connected to the upper part in a gas-tight manner by means of a seal.
  • the outlet openings or the nozzles being able to be arranged in the intended places with high accuracy, so that the intended center distances of the burner nozzles from one another can be observed very precisely.
  • the deep drawing of the upper part allows the nozzles to be arranged at the same height with high accuracy, thereby stabilizing the entire surface of the upper side of the nozzle plate.
  • the softer design of the lower part results in advantages with regard to the gas-tight connection of the two parts of the nozzle plate, since the lower part with its edges can be pressed very well onto the upper part, even with a limited deformation of the former. In this way, it is also possible to connect the two parts to one another by means of a collar flange, whereby a warping of the upper part can be avoided by the softer design of the lower part.
  • the outlet openings are arranged in elevations rising from the plane of the nozzle plate.
  • nozzles are pressed in gas-tight in the outlet openings.
  • the burner nozzles are equipped with a cylindrical shaft, which is machined to a diameter that is suitable for the press.
  • the nozzle plate-side receptacle is designed as a retracted collar with a cylindrical inner diameter, which has the associated press fit diameter.
  • the outlet openings can also be made by drilling or piercing on an otherwise finished nozzle plate.
  • the outlet openings can also be made by punching during the manufacture of the corresponding upper part, this also being possible simultaneously with the production of the elevations, for example by deep drawing. With this solution, the outlet openings can also be enlarged subsequently.
  • the nozzles are pressed into the inwardly drawn collar of the outlet openings of the elevations.
  • the reveal forces to be absorbed by the receiving opening when the nozzles are pressed in can be well distributed.
  • the pulled collar also ensures that it radially absorbs the tensions caused by the pressing in of the nozzle and the remaining nozzle plate or its upper part is kept largely free of tension and thus free of distortion, which is advantageous for its gas tightness.
  • the nozzle plate 1 is equipped with three parallel rows of nozzles 2, which are inserted in elevations 3 arranged on the side facing the mixing tubes 15 of the gas burner.
  • This nozzle plate 1 has four openings 4 through which secondary air can flow from below to the flames.
  • channels 5 are provided in the region of the nozzles 2 arranged in rows, which are connected to one another and can be supplied by an essentially centrally arranged gas or mixture connection 6.
  • the metal nozzle plate 1 consists of an upper part 7, which is produced by deep drawing and provided with the elevations 3 and is very dimensionally stable, and a lower part 8, which has grooves 5 'to form the Provided channels 5 and of lower rigidity and dimensional stability than the upper part 7.
  • the nozzles are pressed into inwardly drawn collars 11 of the outlet openings 12 of the elevations 3, the collapsed collars 11 absorbing the stresses caused by the pressing in radially and thereby keeping the remaining part of the upper part 7 free of tension.
  • the outlet openings 12 arranged in the elevations 3 have a cross section corresponding to the intended flame size, and they themselves form the nozzles. In this case, these elevations 3 still have approaches 3 'extending beyond them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Nozzles (AREA)
  • Gas Separation By Absorption (AREA)
  • Glass Compositions (AREA)

Abstract

Nozzle plate which can be supplied with a gas/air mixture and is provided with a number of outlet openings. In order to minimise the emission of NOx even in the case of relatively large nozzle plates (1) having a relatively large number of outlet openings (12), the nozzle plate (1) is provided with apertures (4) for the supply of secondary air, each of these apertures being arranged between two rows of outlet openings (12). <IMAGE>

Description

Die Neuerung bezieht sich auf eine mit einer Anzahl von Auslaßöffnungen versehene Düsenplatte.The innovation relates to a nozzle plate provided with a number of outlet openings.

Solche Düsenplatten, bei denen die Auslaßöffnungen über die gesamte Fläche der Düsenplatte verteilt angeordnet sind, sind relativ teuer, wenn sie als Druckguß- oder Strangpreßteile hergestellt werden.Such nozzle plates, in which the outlet openings are arranged distributed over the entire surface of the nozzle plate, are relatively expensive if they are produced as die-cast or extruded parts.

Ziel der Erfindung ist es, diesen Nachteil zu vermeiden und eine Düsenplatte der eingangs erwähnten Art vorzuschlagen, die preiswerter ist.The aim of the invention is to avoid this disadvantage and to propose a nozzle plate of the type mentioned at the outset which is cheaper.

Neuerungsgemäß wird dies dadurch erreicht, daß die Düsenplatte zweiteilig, aus zwei Blechschalen bestehend, ausgebildet ist und der Oberteil durch Strecktiefziehen hergestellt und mit Erhebungen versehen und formstabil ausgebildet ist, wogegen der Unterteil mit eingearbeiteten Rinnen versehen ist, die im Bereich der Achsen, entlang derer die Erhebungen des Oberteiles angeordnet sind, eingearbeitet sind, wobei der Unterteil von geringerer Steifigkeit ist und mit dem Oberteil mittels einer Dichtung gasdicht verbunden ist.According to the innovation, this is achieved in that the nozzle plate is formed in two parts, consisting of two sheet metal shells, and the upper part is produced by deep drawing and provided with elevations and is designed to be dimensionally stable, whereas the lower part is provided with incorporated grooves which run in the area of the axes along which the elevations of the upper part are arranged, are incorporated, the The lower part is less rigid and is connected to the upper part in a gas-tight manner by means of a seal.

Durch diese Maßnahmen ergibt sich eine einfache Herstellung der Düsenplatte, wobei die Auslaßöffnungen beziehungsweise die Düsen mit hoher Genauigkeit an den vorgesehenen Plätzen angeordnet werden können, so daß die vorgesehenen Achsabstände der Brennerdüsen voneinander sehr genau eingehalten werden können. Außerdem lassen sich durch das Strecktiefziehen des Oberteiles die Düsen mit hoher Genauigkeit auf gleicher Höhe anordnen, wodurch die gesamte Fläche des Düsenplattenoberseite stabilisiert wird.These measures result in a simple manufacture of the nozzle plate, the outlet openings or the nozzles being able to be arranged in the intended places with high accuracy, so that the intended center distances of the burner nozzles from one another can be observed very precisely. In addition, the deep drawing of the upper part allows the nozzles to be arranged at the same height with high accuracy, thereby stabilizing the entire surface of the upper side of the nozzle plate.

Weiter ergeben sich durch die weichere Ausbildung des Unterteiles Vorteile im Hinblick auf die gasdichte Verbindung der beiden Teile der Düsenplatte, da eben der Unterteil mit seinen Rändern sehr gut an den Oberteil, auch unter einer begrenzten Verformung des ersteren, angepreßt werden kann. So ist es auf diese Weise auch möglich, die beiden Teile durch eine Kragenbördelung miteinander zu verbinden, wobei durch die weichere Ausbildung des Unterteiles ein Verzug des Oberteiles vermieden werden kann.Furthermore, the softer design of the lower part results in advantages with regard to the gas-tight connection of the two parts of the nozzle plate, since the lower part with its edges can be pressed very well onto the upper part, even with a limited deformation of the former. In this way, it is also possible to connect the two parts to one another by means of a collar flange, whereby a warping of the upper part can be avoided by the softer design of the lower part.

Nach einem weiteren Merkmal der Neuerung kann vorgesehen sein, daß die Auslaßöffnungen in aus der Ebene der Düsenplatte aufragenden Erhebungen angeordnet sind.According to a further feature of the innovation, it can be provided that the outlet openings are arranged in elevations rising from the plane of the nozzle plate.

Durch die Anordnung der Auslaßöffnungen in Erhebungen wird die Haltekraft auf die Düse vergleichmäßigt, ohne daß sich Verwerfungen der Düsenplattenoberfläche ergeben.By arranging the outlet openings in elevations, the holding force on the nozzle is evened out without the surface of the nozzle plate being distorted.

Nach einem weiteren Merkmal der Neuerung kann vorgesehen sein, daß in den Auslaßöffnungen Düsen gasdicht eingepreßt sind.According to a further feature of the innovation it can be provided that nozzles are pressed in gas-tight in the outlet openings.

Zu diesem Zweck sind die Brennerdüsen mit einem zylindrischen Schaft ausgestattet, welcher durch mechanische Bearbeitung einen preßpassungsgerechten Durchmesser erhält. Die düsenplattenseitige Aufnahme ist als ein eingezogener Kragen mit einem zylindrischen Innendurchmesser gestaltet, welcher den zugehörigen Preßsitz-Durchmesser aufweist.For this purpose, the burner nozzles are equipped with a cylindrical shaft, which is machined to a diameter that is suitable for the press. The nozzle plate-side receptacle is designed as a retracted collar with a cylindrical inner diameter, which has the associated press fit diameter.

Die Auslaßöffnungen können auch durch Bohrungen oder Durchstechen auf bei sonst fertiger Düsenplatte hergestellt werden. Bei aus mehreren Teilen zusammengesetzten Brennerplatten können die Auslaßöffnungen auch bei der Herstellung des entsprechenden Oberteiles durch Lochen hergestellt werden, wobei dies auch gleichzeitig mit der Herstellung der Erhebungen, zum Beispiel durch Tiefziehen, erfolgen kann. Bei dieser Lösung können auch nachträglich die Auslaßöffnungen vergrößert werden.The outlet openings can also be made by drilling or piercing on an otherwise finished nozzle plate. In the case of burner plates composed of several parts, the outlet openings can also be made by punching during the manufacture of the corresponding upper part, this also being possible simultaneously with the production of the elevations, for example by deep drawing. With this solution, the outlet openings can also be enlarged subsequently.

Bei einer bevorzugten Ausführungsform nach der Neuerung kann vorgesehen sein, daß die Düsen in nach innen eingezogene Kragen der Auslaßöffnungen der Erhebungen eingepreßt sind.In a preferred embodiment according to the innovation it can be provided that the nozzles are pressed into the inwardly drawn collar of the outlet openings of the elevations.

Durch diese Maßnahmen können die beim Einpressen der Düsen vom aufnehmenden Durchbruch aufzunehmenden Laibungskräfte gut verteilt werden. Außerdem wird durch den gezogenen Kragen auch erreicht, daß dieser die durch das Einpressen der Düse bedingten Spannungen radial aufnimmt und dabei die übrige Düsenplatte beziehungsweise deren Oberteil weitgehend spannungsfrei und damit verzugsfrei gehalten wird, was für ihre Gasdichtheit von Vorteil ist.By means of these measures, the reveal forces to be absorbed by the receiving opening when the nozzles are pressed in can be well distributed. In addition, the pulled collar also ensures that it radially absorbs the tensions caused by the pressing in of the nozzle and the remaining nozzle plate or its upper part is kept largely free of tension and thus free of distortion, which is advantageous for its gas tightness.

Die Erfindung wird nun anhand der Zeichnung näher erläutert.The invention will now be explained in more detail with reference to the drawing.

Dabei zeigen:

  • Figur 1 eine Draufsicht auf eine neuerungsgemäße Düsenplatte,
  • Figur 2 einen Ausschnitt aus der Düsenplatte nach der Figur 1,
  • Figur 3 einen weiteren Ausschnitt der Düsenplatte im Bereich eines Durchbruchs und
  • Figur 4 eine Variante der Erfindung.
Show:
  • FIG. 1 shows a top view of a nozzle plate according to the invention,
  • FIG. 2 shows a section of the nozzle plate according to FIG. 1,
  • Figure 3 shows a further section of the nozzle plate in the region of an opening and
  • Figure 4 shows a variant of the invention.

Die Düsenplatte 1 ist mit drei parallel zueinander verlaufenden Reihen von Düsen 2 bestückt, die in auf der den Mischrohren 15 des Gasbrenners zugewandten Seite angeordneten Erhebungen 3 eingesetzt sind.The nozzle plate 1 is equipped with three parallel rows of nozzles 2, which are inserted in elevations 3 arranged on the side facing the mixing tubes 15 of the gas burner.

Diese Düsenplatte 1 weist vier Durchbrüche 4 auf, durch die Sekundärluft von unten her zu den Flammen zuströmen kann.This nozzle plate 1 has four openings 4 through which secondary air can flow from below to the flames.

Im Inneren der Düsenplatte 1 sind Kanäle 5 im Bereich der in Reihen angeordneten Düsen 2 vorgesehen, die miteinander in Verbindung stehen und von einem im wesentlichen zentral angeordneten Gas- beziehungsweise Gemischanschluß 6 versorgbar sind.In the interior of the nozzle plate 1, channels 5 are provided in the region of the nozzles 2 arranged in rows, which are connected to one another and can be supplied by an essentially centrally arranged gas or mixture connection 6.

Wie aus den Figuren 2 und 3 zu ersehen ist, besteht die metallene Düsenplatte 1 aus einem Oberteil 7, der durch Strecktiefziehen hergestellt und mit den Erhebungen 3 versehen und sehr formstabil ausgebildet ist, und einem Unterteil 8, der mit Rinnen 5' zur Bildung der Kanäle 5 versehen und von geringerer Steifigkeit und Formstabilität als der Oberteil 7 ist.As can be seen from Figures 2 and 3, the metal nozzle plate 1 consists of an upper part 7, which is produced by deep drawing and provided with the elevations 3 and is very dimensionally stable, and a lower part 8, which has grooves 5 'to form the Provided channels 5 and of lower rigidity and dimensional stability than the upper part 7.

Diese beiden Teile 7 und 8 sind aus Blech geprägt und miteinander durch einen gezogene Kragen 9 unter Zwischenlage einer Dichtung 10 miteinander gasdicht verbunden. Statt der festen Dichtung 10 kann auch eine pastöse oder flüssige Dichtung vorgesehen sein, wobei zumindest die letztere zu einer gegebenenfalls elastisch verformbaren Masse erhärten muß.These two parts 7 and 8 are stamped from sheet metal and connected to one another in a gas-tight manner by a drawn collar 9 with the interposition of a seal 10. Instead of the fixed seal 10, a pasty or liquid seal can also be provided, at least the latter having to harden to an optionally elastically deformable mass.

Die Düsen sind in nach innen eingezogene Kragen 11 der Auslaßöffnungen 12 der Erhebungen 3 eingepreßt, wobei die eingezogenen Kragen 11 die durch das Einpressen bedingten Spannungen radial aufnehmen und dadurch den übrigen Teil des Oberteiles 7 frei von Verspannungen halten.The nozzles are pressed into inwardly drawn collars 11 of the outlet openings 12 of the elevations 3, the collapsed collars 11 absorbing the stresses caused by the pressing in radially and thereby keeping the remaining part of the upper part 7 free of tension.

Aus der Figur 3 ist zu ersehen, daß die beiden Teile 7, 8 im Bereich der Durchbrechungen 4 mittels Dichtungen 13, ähnlich O-Ringen, abgedichtet sind, die in Abstufungen 14 des Unterteiles 8 eingelegt sind.It can be seen from FIG. 3 that the two parts 7, 8 are sealed in the area of the openings 4 by means of seals 13, similar to O-rings, which are inserted in steps 14 of the lower part 8.

Bei der Ausführungsform nach der Figur 4 weisen die in den Erhebungen 3 angeordneten Auslaßöffnungen 12 einen der vorgesehenen Flammengröße entsprechenden Querschnitt auf, wobei sie selbst die Düsen bilden. Dabei weisen diese Erhebungen 3 noch sich über diese hinaus erstreckende Ansätze 3' auf.In the embodiment according to FIG. 4, the outlet openings 12 arranged in the elevations 3 have a cross section corresponding to the intended flame size, and they themselves form the nozzles. In this case, these elevations 3 still have approaches 3 'extending beyond them.

Claims (5)

Düsenplatte, dadurch gekennzeichnet, daß die Düsenplatte (1) zweiteilig ausgebildet ist und der Oberteil (7) durch Strecktiefziehen hergestellt und mit Erhebungen (3) versehen und formstabil ist, wogegen der Unterteil (8) mit eingearbeiteten Rinnen (5') versehen ist, die im Bereich der Achsen entlang derer die Erhebungen (3) des Oberteiles (7) angeordnet sind, eingearbeitet sind, wobei der Unterteil (8) von geringerer Steifigkeit ist und mit dem Oberteil (7) mittels einer Dichtung (10) gasdicht verbunden ist.Nozzle plate, characterized in that the nozzle plate (1) is formed in two parts and the upper part (7) is produced by deep drawing and is provided with elevations (3) and is dimensionally stable, whereas the lower part (8) is provided with incorporated grooves (5 '), which are incorporated in the area of the axes along which the elevations (3) of the upper part (7) are arranged, the lower part (8) being less rigid and being gas-tightly connected to the upper part (7) by means of a seal (10). Düsenplatte nach Anspruch 1, dadurch gekennzeichnet, daß in den Auslaßöffnungen (13) Düsen (2) gasdicht eingepreßt sind.Nozzle plate according to Claim 1, characterized in that nozzles (2) are pressed in gas-tightly in the outlet openings (13). Düsenplatte, nach Anspruch 1, dadurch gekennzeichnet, daß die Auslaßöffnungen (12) in aus der Ebene der Düsenplatte (1) aufragenden Erhebungen (3) angeordnet sind.Nozzle plate, according to claim 1, characterized in that the outlet openings (12) are arranged in elevations (3) rising from the plane of the nozzle plate (1). Düsenplatte nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Düsen (2) in nach innen eingezogenen Kragen (11) der Auslaßöffnungen (12) der Erhebungen (3) eingepreßt sind.Nozzle plate according to one of claims 1 to 3, characterized in that the nozzles (2) are pressed into collars (11) of the outlet openings (12) of the elevations (3) which are drawn inwards. Düsenplatten, dadurch gekennzeichnet, daß die Düsenöffnungen direkt in die Düsenplatte durch Bohren, Durchstechen oder Ausstanzen eingebracht sind (Figur 4).Nozzle plates, characterized in that the nozzle openings are made directly in the nozzle plate by drilling, piercing or punching out (Figure 4).
EP91113723A 1990-08-20 1991-08-16 Gasburner Expired - Lifetime EP0472120B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1708/90 1990-08-20
AT0170890A AT396817B (en) 1990-08-20 1990-08-20 BURNER PLATE

Publications (3)

Publication Number Publication Date
EP0472120A2 true EP0472120A2 (en) 1992-02-26
EP0472120A3 EP0472120A3 (en) 1992-09-02
EP0472120B1 EP0472120B1 (en) 1996-05-22

Family

ID=3519272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113723A Expired - Lifetime EP0472120B1 (en) 1990-08-20 1991-08-16 Gasburner

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Country Link
EP (1) EP0472120B1 (en)
AT (2) AT396817B (en)
DE (2) DE9110245U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399032B (en) * 1992-10-02 1995-03-27 Vaillant Gmbh NOZZLE PLATE
FR2714155A1 (en) * 1993-12-21 1995-06-23 Sourdillon Sa Gas burner body for domestic infrared heater

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1254668B (en) * 1992-03-06 1995-09-28 Giorgio Scanferla ATMOSPHERIC GAS BURNER FOR WATER-HEATING APPLIANCES, IN PARTICULAR OF THE SO-CALLED TYPE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655210A (en) * 1950-10-04 1953-10-13 Blodgett G S Co Inc Sheet metal mixer for gas burners
GB805055A (en) * 1956-09-11 1958-11-26 H B Drew Ltd Improvements in or relating to heating elements for gas stoves and the like
DE8513182U1 (en) * 1985-05-04 1985-08-08 Justushütte, Zweigwerk der Fa. Heyligenstaedt & Co Werkzeugmaschinenfabrik GmbH, 3554 Gladenbach Gas burners, in particular for a stool
DE8812595U1 (en) * 1987-10-07 1988-11-17 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476646C (en) * 1929-05-22 Ludwig Stiegler Mixture regulator for gas firing
GB320453A (en) * 1928-08-15 1929-10-17 Frederick King Improvements in, or relating to, gas burners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655210A (en) * 1950-10-04 1953-10-13 Blodgett G S Co Inc Sheet metal mixer for gas burners
GB805055A (en) * 1956-09-11 1958-11-26 H B Drew Ltd Improvements in or relating to heating elements for gas stoves and the like
DE8513182U1 (en) * 1985-05-04 1985-08-08 Justushütte, Zweigwerk der Fa. Heyligenstaedt & Co Werkzeugmaschinenfabrik GmbH, 3554 Gladenbach Gas burners, in particular for a stool
DE8812595U1 (en) * 1987-10-07 1988-11-17 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399032B (en) * 1992-10-02 1995-03-27 Vaillant Gmbh NOZZLE PLATE
FR2714155A1 (en) * 1993-12-21 1995-06-23 Sourdillon Sa Gas burner body for domestic infrared heater
US5593300A (en) * 1993-12-21 1997-01-14 Sourdillon Radiant burner body

Also Published As

Publication number Publication date
EP0472120A3 (en) 1992-09-02
DE9110245U1 (en) 1991-09-26
ATA170890A (en) 1993-04-15
ATE138461T1 (en) 1996-06-15
EP0472120B1 (en) 1996-05-22
AT396817B (en) 1993-12-27
DE59107834D1 (en) 1996-06-27

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