EP0926437B1 - Gas burner arrangement for cooking hobs - Google Patents

Gas burner arrangement for cooking hobs Download PDF

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Publication number
EP0926437B1
EP0926437B1 EP98124267A EP98124267A EP0926437B1 EP 0926437 B1 EP0926437 B1 EP 0926437B1 EP 98124267 A EP98124267 A EP 98124267A EP 98124267 A EP98124267 A EP 98124267A EP 0926437 B1 EP0926437 B1 EP 0926437B1
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EP
European Patent Office
Prior art keywords
gas
burner
valve
arrangement according
actuating element
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
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EP98124267A
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German (de)
French (fr)
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EP0926437A1 (en
Inventor
Bernd Dipl.-Ing. Mühle
Werner Gronnenberg
Jörn Dipl.-Ing. Naumann
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
    • F23D14/065—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head with injector axis inclined to the burner head axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges
    • 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
    • F23D2900/14—Special features of gas burners
    • F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings

Definitions

  • the present invention relates to a gas burner arrangement for hotplates a multi-circuit gas burner with an internal burner with side gas-air mixture outlet openings and with low burning power and with one at a distance ring-shaped outer burner with gas-air mixture outlet openings arranged by the inner burner is equipped, as well as with a manually operated gas valve Passing through, dosing and shutting off the multi-circuit burner via separate Pipelines feedable burner gas.
  • Such gas burner assemblies are usually used for heating, heating and preparing food for use, especially where there is high heating output be required.
  • multi-circuit burners constructed in this way Heating outputs up to 5 kW and above can be realized.
  • Such burners are particularly suitable such burners as wok burners.
  • Multi-circuit gas burners are also used, to increase the control bandwidth by switching individual on and off To achieve burner circuits, the heating output of which can also be changed. On such burner is e.g. known from US 5 158 067 A.
  • a gas burner arrangement designed according to these points of view is according to the invention, characterized in that the hand-operated gas fitting three via an actuator that is adjustable in a plurality of adjustment positions and intermediate positions has gas duct branches that can be opened and closed by valves, two of which valve-actuated gas duct branches open for one each fixed gas throughput and another valve-loaded gas duct branch for an influenceable via the actuator and the associated valve variable gas flow rate is designed so that a first of the gas channel branches with fixed assigned gas flow rate to the internal burner and starting from the Reset to zero if necessary after a preliminary stretch of the actuator setting whose full adjustment distance is opened by the associated valve and that the two other gas duct branches are assigned to the external burner and via a Part of the adjustment path that keeps the first gas duct branch open the assigned valves are activated.
  • the gas burner arrangement according to the invention characterized in that the gas duct branches assigned to the external burner over an end section of the line that keeps the first gas channel branch open Adjustment distance of the actuator via the valves are activated, and that in the Starting position of this end section of the valve for the gas duct branching with the variable gas throughput fully opened and lockable in position analogous to the end position is.
  • the gas burner arrangement according to the invention is thus characterized by a simple one Construction from that with high maximum burning power and relatively low minimum burning power can be operated in a user-friendly manner.
  • the one with constant performance Internal burners can, for example, have a power between 300 W to 500 W. be designed and serves both as a burner for the lowest combustion power and preferred as a pilot burner, i.e. in its close range the ignition element is preferably to arrange which, depending on the form of use of the gas burner arrangement according to the invention by a piezo voltage generator or by an electronic one Voltage generator can be influenced.
  • the use of a piezo voltage generator is preferred rather for portable gas burner units, in which an external Power supply is not secured.
  • a Thermocouple to be arranged, possibly as a so-called flame monitoring element serves and acts on a closure element in the gas fitting, so that the gas flow to the burner is interrupted when the flame on the inner burner goes out is.
  • the external burner can now, for example, have a maximum output of 5,000 W. be designed, this output of the external burner by throttling the gas supply can be regulated down to approx. 1,000 W.
  • Both the gas supply for performance of the internal burner as well as the gas supply for the minimum output of the external burner are set as fixed values by gas duct branches in the gas valve dosed so that even at these relatively low values in the overall design of the High burner security is guaranteed.
  • the maximum power of the burner is then achieved by an additional third channel branching in the valve, each can be variably set up to the maximum value at the operator's request can.
  • the necessary Gas injector nozzle arrangement in the area of which the fuel gas mixes with the primary air will be arranged for the internal burner directly in the burner head while the corresponding one Gas injector nozzle arrangement for the external burner in the vicinity of the gas valve is arranged.
  • the gas injector nozzle arrangement is provided up to the focal point completely sufficient to become a to lead good flame formation.
  • gas burner assemblies 4 and associated gas fittings 5 for two hotplates On a base frame, consisting of two angle strips 2 equipped with feet 1 and an intermediate base board 3 are gas burner assemblies 4 and associated gas fittings 5 for two hotplates attached.
  • the completely identical trained gas burner arrangements 4 each have two burner circuits, namely one Inner burner 6 and an outer burner 7 arranged around it, and are with its supply channel for the gas-air mixture intended for the external burner 7 V-shaped in the direction of the gas fittings 5.
  • the vertical Level to the gas-air guide channel 8 for the external burner 7 is opposite in the lower area of the burner head of each of the gas burner arrangements 4 a connection provided for a gas output 9 starting from the respective fitting 5, the gas injector nozzle arrangement arranged in the burner head of the gas burner arrangement 4 10 leads.
  • the gas coming from the valve 5 is passed through a gas nozzle 13, which is part of the fitting body, taking primary air blown.
  • the intensive mixing of injected gas and suction Air to the external burner 7 is found in the gas-air supply duct 8 which is long enough instead of.
  • an axially displaceable pipe socket 14 with an intake funnel 14 ' is assigned, over which the effective distance of the gas-air supply channel 8 to the nozzle 13 is changeable, whereby the air intake can also be changed.
  • This pipe socket 14 can be actuated via an angle lever 15 mounted in the base plate by a rotary knob assembly 16, the - not shown - operating button protrudes from the control panel - also not shown.
  • the gas supply for the gas burner arrangements 4 of the two hotplates of the hob takes place centrally via a gas line 17 which is T-shaped between the two fittings 5 is connected to the two fittings 5.
  • the two fittings 5 are constructed and arranged symmetrically to one another. They each contain three Gas channel branches, which have a rotary knob arrangement 18, which have a - not shown - open operating button protruding beyond the control panel and can be closed.
  • One of the gas duct branches in the valve 5 is designed for constant gas throughput and the gas supply line 9 to Internal burner 6 assigned. After an initial rotary movement of the rotary toggle device 18, this gas channel branch is opened completely, for the whole further adjustment path of this rotary toggle device 18.
  • an ignition electrode 20 is arranged in the vicinity of the inner burner 6.
  • the ignition voltage for generating the ignition sparks is generated at the Embodiment according to FIGS. 1 and 5 with the aid of an ignition generator 21, which by one of the rotary toggle devices e.g. operable by axial pushing Contact 24 is activated or in the embodiment of FIGS. 2 and 4 by the Actuation of a piezo element on which the rotary toggle device 18 acts by prepared by the advance rotary movement or pushing-in movement of the Rotary toggle device at the time of opening of said gas channel branch a striking movement is exerted on the piezo element 25.
  • thermocouple 22 is arranged over which - as long as the flame on the inner burner 6 is present - a main valve 23 is kept open for the gas outlet.
  • the nozzle 13 and thus each of the gas burner arrangement 4 are assigned to the external burner 7.
  • the flame of the inner burner 6 is ignited.
  • One of the two assigned to the external burner 7 and to the gas nozzle 13 guided gas channel branches is variable with regard to the gas flow rate and can until the end of a predetermined angle of rotation of the rotary toggle device be completely closed.
  • the second of the gas channel branches led to the gas nozzle 13 remains fully open during this time and is used for secure gas supply for the external burner 7 at minimum heating output.
  • the design and arrangement of the gas burners for two hotplates is designed in this way and chosen that for simple and similar components for the both hotplate units can be used.
  • the gas fittings 5 as well their associated adjustment mechanisms for the addition of air in the area of the nozzles 13 are mirror images and largely identical; the design of the Two-circuit gas burner arrangements 4 are completely identical. Nevertheless, it allows this Design that the actuators for the cooker areas apart are close together on the front panel and an operating block form.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Description

Die vorliegende Erfindung bezieht sich auf eine Gasbrenneranordnung für Kochstellen mit einem Mehrkreis-Gasbrenner, der mit einem Innenbrenner mit seitlichen Gas-Luft-Gemisch-Austrittsöffnungen und mit niedriger Brennleistung sowie mit einem mit Abstand vom Innenbrenner angeordneten, ringförmigen Außenbrenner mit Gas-Luft-Gemisch-Austrittsöffnungen ausgestattet ist, sowie mit einer handbetätigbaren Gasarmatur zur Durchleitung, Dosierung und Absperrung des den Mehrkreisbrenner über getrennte Rohrleitungen zuführbaren Brennergases.The present invention relates to a gas burner arrangement for hotplates a multi-circuit gas burner with an internal burner with side gas-air mixture outlet openings and with low burning power and with one at a distance ring-shaped outer burner with gas-air mixture outlet openings arranged by the inner burner is equipped, as well as with a manually operated gas valve Passing through, dosing and shutting off the multi-circuit burner via separate Pipelines feedable burner gas.

Derartige Gasbrenneranordnungen kommen üblicherweise zum Erhitzen, Erwärmen und Bereiten von Speisen zur Anwendung, und zwar besonders dort, wo hohe Heizleistungen gefordert werden. Mit derartig aufgebauten Mehrkreisbrennem können Heizleistungen bis zu 5 kW und darüber realisiert werden. Insbesondere eignen sich derartige Brenner als Wok -Brenner. Mehrkreis-Gasbrenner kommen auch zum Einsatz, um damit eine höhere Regelbandbreite durch Zu- und Abschalten einzelner Brennerkreise, deren Heizleistung in sich zusätzlich veränderbar ist, zu erreichen. Ein solcher Brenner ist z.B. aus der US 5 158 067 A bekannt.Such gas burner assemblies are usually used for heating, heating and preparing food for use, especially where there is high heating output be required. With multi-circuit burners constructed in this way Heating outputs up to 5 kW and above can be realized. Are particularly suitable such burners as wok burners. Multi-circuit gas burners are also used, to increase the control bandwidth by switching individual on and off To achieve burner circuits, the heating output of which can also be changed. On such burner is e.g. known from US 5 158 067 A.

Aufbauend auf diesem Stand der Technik ist es Aufgabe der vorliegenden Erfindung, eine Gasbrenneranordnung mit hoher Funktionssicherheit, einfacher Bedienbarkeit und einfachem Aufbau sowie mit einer insbesondere für den Einsatz als Wok-Brenner geeigneten Heizleistung bereitzustellen. Wok-Brenner, wie sie beispielsweise in chinesischen Haushalten zum Einsatz kommen, haben verbreitet üblicherweise eine Nennheizleistung, d.h. Maximalheizleistung von 4 bis 6 kW. Based on this prior art, it is an object of the present invention to Gas burner arrangement with high functional reliability, simple operability and simple Structure and with a particularly suitable for use as a wok burner To provide heating power. Wok burners, such as those found in Chinese households are usually used have a nominal heating capacity, i.e. Maximum heating output from 4 to 6 kW.

Eine nach diesen Gesichtspunkten zielführend ausgestaltete Gasbrenneranordnung ist erfindungsgemäß dadurch gekennzeichnet, daß die handbetätigbare Gasarmatur drei über eine in einer Mehrzahl von Einstellpositionen und Zwischenlagen verstellbares Betätigungsorgan durch Ventile öffenbare und schließbare Gaskanalverzweigungen aufweist, von denen zwei ventilbeaufschlagte Gaskanalverzweigungen geöffnet für jeweils einen fest vorgegebenen Gasdurchsatz und eine weitere ventilbeaufschlagte Gaskanalverzweigung für einen über das Betätigungsorgan und das zugeordnete Ventil beeinflußbaren variablen Gasdurchsatz ausgelegt ist, daß eine erste der Gaskanalverzweigungen mit fest vorgegebenem Gasdurchsatz dem Innenbrenner zugeordnet und ausgehend von der Nullstellung nach gegebenenfalls einer Vorstrecke der Betätigungsorgan-Einstellung über deren volle Verstellstrecke durch das zugeordnete Ventil geöffnet ist und daß die beiden anderen Gaskanalverzweigungen dem Außenbrenner zugeordnet sind und über eine Teilstrecke der die erste Gaskanalverzweigung geöffnet haltenden Verstellstrecke durch die zugeordneten Ventile aktiviert sind.A gas burner arrangement designed according to these points of view is according to the invention, characterized in that the hand-operated gas fitting three via an actuator that is adjustable in a plurality of adjustment positions and intermediate positions has gas duct branches that can be opened and closed by valves, two of which valve-actuated gas duct branches open for one each fixed gas throughput and another valve-loaded gas duct branch for an influenceable via the actuator and the associated valve variable gas flow rate is designed so that a first of the gas channel branches with fixed assigned gas flow rate to the internal burner and starting from the Reset to zero if necessary after a preliminary stretch of the actuator setting whose full adjustment distance is opened by the associated valve and that the two other gas duct branches are assigned to the external burner and via a Part of the adjustment path that keeps the first gas duct branch open the assigned valves are activated.

In einer bevorzugten Ausführungsform ist die erfindungsgemäße Gasbrenneranordnung dadurch gekennzeichnet, daß die dem Außenbrenner zugeordneten Gaskanalverzweigungen über eine End-Teilstrecke der die erste Gaskanalverzweigung geöffnet haltenden Verstellstrecke des Betätigungsorgans über deren Ventile aktiviert sind, und daß in der Anfangsposition dieser End-Teilstrecke das Ventil für die Gaskanalverzweigung mit dem variablen Gasdurchsatz voll geöffnet und bis zur Endposition hin positionsanalog verschließbar ist.In a preferred embodiment, the gas burner arrangement according to the invention characterized in that the gas duct branches assigned to the external burner over an end section of the line that keeps the first gas channel branch open Adjustment distance of the actuator via the valves are activated, and that in the Starting position of this end section of the valve for the gas duct branching with the variable gas throughput fully opened and lockable in position analogous to the end position is.

Damit zeichnet sich die erfindungsgemäße Gasbrenneranordnung durch einen einfachen Aufbau aus, der bei hoher Maximalbrennleistung und relativ niedriger Mindestbrennleistung benutzerfreundlich betrieben werden kann. Der in seiner Leistung konstant zu betreibende Innenbrenner kann beispielsweise auf eine Leistung zwischen 300 W bis 500 W ausgelegt sein und dient sowohl als Brenner für die Niedrigstbrennleistung als auch bevorzugt als Zündbrenner, d.h. in seinem Nahbereich ist das Zündelement bevorzugterweise anzuordnen, welches je nach Einsatzform der erfindungsgemäßen Gasbrenneranordnung durch einen Piezo-Stromspannungsgeber oder durch einen elektronischen Stromspannungsgeber beeinflußbar ist. Die Verwendung eines Piezo-Stromspannungsgebers wird bevorzugt eher bei portablen Gasbrennereinheiten, bei denen eine externe Stromversorgung nicht gesichert ist. Im Nahbereich des Innenbrenners wird auch ein Thermoelement anzuordnen sein, das gegebenenfalls als sogenanntes Flamm-Überwachungselement dient und auf ein Verschlußelement in der Gasarmatur einwirkt, so daß der Gaszustrom zum Brenner unterbrochen wird, wenn die Flamme am Innenbrenner erloschen ist.The gas burner arrangement according to the invention is thus characterized by a simple one Construction from that with high maximum burning power and relatively low minimum burning power can be operated in a user-friendly manner. The one with constant performance Internal burners can, for example, have a power between 300 W to 500 W. be designed and serves both as a burner for the lowest combustion power and preferred as a pilot burner, i.e. in its close range the ignition element is preferably to arrange which, depending on the form of use of the gas burner arrangement according to the invention by a piezo voltage generator or by an electronic one Voltage generator can be influenced. The use of a piezo voltage generator is preferred rather for portable gas burner units, in which an external Power supply is not secured. In the close range of the inner burner is also a Thermocouple to be arranged, possibly as a so-called flame monitoring element serves and acts on a closure element in the gas fitting, so that the gas flow to the burner is interrupted when the flame on the inner burner goes out is.

Der Außenbrenner kann nunmehr beispielsweise auf eine Maximalleistung von 5.000 W ausgelegt werden, wobei diese Leistung des Außenbrenners durch Drosselung der Gaszufuhr auf ca. 1.000 W heruntergeregelt werden kann. Sowohl die Gaszufuhr für die Leistung des Innenbrenners als auch die Gaszufuhr für die Minimalleistung des Außenbrenners werden durch Gaskanalverzweigungen in der Gasarmatur als fest eingestellte Werte dosiert, so daß auch bei diesen relativ niedrigen Werten bei der Gesamtauslegung des Brenners eine hohe Brennsicherheit gewährleistet ist. Die Maximalleistung des Brenners wird dann durch eine zusätzliche dritte Kanalverzweigung in der Armatur erreicht, die je nach Wunsch der Bedienungsperson variabel bis zum Maximalwert eingestellt werden kann.The external burner can now, for example, have a maximum output of 5,000 W. be designed, this output of the external burner by throttling the gas supply can be regulated down to approx. 1,000 W. Both the gas supply for performance of the internal burner as well as the gas supply for the minimum output of the external burner are set as fixed values by gas duct branches in the gas valve dosed so that even at these relatively low values in the overall design of the High burner security is guaranteed. The maximum power of the burner is then achieved by an additional third channel branching in the valve, each can be variably set up to the maximum value at the operator's request can.

Bei der erfindungsgemäßen Gasbrenneranordnung bietet es sich an, die erforderliche Gasinjektor-Düsenanordnung, in deren Bereich das Brenngas mit der Primärluft vermischt wird, für den Innenbrenner im Brennerkopf direkt anzuordnen, während die entsprechende Gasinjektor-Düsenanordnung für den Außenbrenner im Nahbereich der Gasarmatur angeordnet wird. Für den Innenbrenner mit der relativ niedrigen Heizleistung ist die Mischstrecke zwischen dem Unterteil des Brennerkopfes, in dem die Gasinjektor-Düsenanordnung vorgesehen ist, bis zur Brennstelle vollkommen ausreichend, um zu einer guten Flammausbildung zu führen. Für die maximal sehr hohe Leistung des Außenbrenners ist es dagegen vorteilhaft und nötig, zur guten Durchmischung des starken Gasstroms aus der Injektordüse mit der dadurch angesaugten Luft aus dem Umfeld einen längeren Weg zwischen Gasinjektor-Düsenanordnung und Brennstelle bereitzustellen, um zu einem guten, gleichmäßig verteilten Mischverhältnis von Gas und Primärluft zu gelangen. Dies läßt sich bevorzugt dadurch realisieren, daß die Gasinjektordüse noch als Bestandteil der Gasarmatur ausgebildet ist, welche auf den offenen Eingang des Zuführungskanals für das Gasluftgemisch des Außenbrenners ausgerichtet ist. Dies führt auch zu einer zweckmäßigen mechanischen Entkoppelung von Brennereinheit und Armatur in diesem Bereich.In the gas burner arrangement according to the invention, it is advisable to do the necessary Gas injector nozzle arrangement, in the area of which the fuel gas mixes with the primary air will be arranged for the internal burner directly in the burner head while the corresponding one Gas injector nozzle arrangement for the external burner in the vicinity of the gas valve is arranged. For the internal burner with the relatively low heating output, that is Mixing section between the lower part of the burner head, in which the gas injector nozzle arrangement is provided up to the focal point completely sufficient to become a to lead good flame formation. For the maximum very high output of the external burner on the other hand, it is advantageous and necessary for thorough mixing of the strong gas flow from the injector nozzle with the air drawn in from the environment to provide a longer path between the gas injector nozzle arrangement and the burning point, to a good, evenly distributed mixture ratio of gas and primary air reach. This can preferably be achieved in that the gas injector nozzle is still as Part of the gas valve is formed, which on the open entrance of the feed channel for the gas-air mixture of the external burner. This also leads for an appropriate mechanical decoupling of burner unit and valve in this area.

Nach Merkmalen der Erfindung ausgestattete Ausführungsbeispiele sind anhand der Zeichnung im folgenden näher beschrieben.Embodiments equipped according to the features of the invention are shown in FIG Drawing described in more detail below.

Es zeigen:

Fig. 1 und Fig. 2
Draufsichten von Anordnungen mit jeweils 2 Kochstellen und der dazugehörigen Brennerarmatur ohne ein zugehöriges Gehäuse bzw. ohne eine zugehörige Abdeckung mit Topfträgereinheiten,
Fig. 3
eine Frontansicht einer derartigen Anordnung und
Fig. 4 bis Fig. 6
Seitenansichten der Brennereinheiten, teilweise geschnitten.
Show it:
1 and 2
Top views of arrangements each with 2 hotplates and the associated burner fitting without an associated housing or without an associated cover with pan support units,
Fig. 3
a front view of such an arrangement and
4 to 6
Side views of the burner units, partially cut.

Auf einem Grundgestell, bestehend aus zwei mit Füßen 1 bestückten Winkelleisten 2 und einer dazwischenliegenden Basisplatine 3 sind Gasbrenneranordnungen 4 und dazugehörige Gasarmaturen 5 für zwei Kochstellen befestigt. Die völlig gleichartig ausgebildeten Gasbrenneranordnungen 4 weisen je zwei Brennerkreise, nämlich einen Innenbrenner 6 und einen darum herum angeordneten Außenbrenner 7, auf und sind mit ihrem Zuführungskanal für das für den Außenbrenner 7 bestimmte Gas-Luft-Gemisch V-förmig in Richtung auf die Gasarmaturen 5 ausgerichtet. In der senkrechten Ebene zum Gas-Luft-Führungskanal 8 für den Außenbrenner 7 ist gegenüberliegend im unteren Bereich des Brennerkopfes jeder der Gasbrenneranordnungen 4 ein Anschluß für eine von der jeweiligen Armatur 5 ausgehenden Gasleistung 9 vorgesehen, die zu einer im Brennerkopf der Gasbrenneranordnung 4 angeordnete Gasinjektor-Düsenanordnung 10 führt. Über eine Öffnung 11 an der Unterseite des Brennerkopfes ist der Zutritt der Primärluft zur Gasinjektor-Düsenanordnung freigegeben. Im zum Innenbrenner 6 führenden Kanal 12 vermischt sich das Gas mit der Primärluft zu einem gut brennenden Gemisch. Die benötigte Sekundärluft für den Innenbrenner 6 als auch eine erforderliche Teilmenge von Sekundärluft für den Außenbrenner gelangt durch eine Spaltöffnung 19 zwischen Innenbrenner 6 und Außenbrenner 7 zu den den Flammbereichen.On a base frame, consisting of two angle strips 2 equipped with feet 1 and an intermediate base board 3 are gas burner assemblies 4 and associated gas fittings 5 for two hotplates attached. The completely identical trained gas burner arrangements 4 each have two burner circuits, namely one Inner burner 6 and an outer burner 7 arranged around it, and are with its supply channel for the gas-air mixture intended for the external burner 7 V-shaped in the direction of the gas fittings 5. In the vertical Level to the gas-air guide channel 8 for the external burner 7 is opposite in the lower area of the burner head of each of the gas burner arrangements 4 a connection provided for a gas output 9 starting from the respective fitting 5, the gas injector nozzle arrangement arranged in the burner head of the gas burner arrangement 4 10 leads. Via an opening 11 on the underside of the burner head access of the primary air to the gas injector nozzle arrangement is enabled. Im to the internal burner 6 leading channel 12, the gas mixes with the primary air to a good burning mixture. The secondary air required for the inner burner 6 as well as one Part of the secondary air required for the external burner passes through a Gap opening 19 between the inner burner 6 and outer burner 7 to the flame areas.

In den Gas-Luft-Zuführungskanal 8 wird das aus der Armatur 5 kommende Gas durch eine Gasdüse 13, die Bestandteil des Armaturkörpers ist, unter Mitnahme von Primärluft eingeblasen. Die intensive Vermischung von eingeblasenem Gas und angesaugter Luft hin zum Außenbrenner 7 findet im genügend langen Gas-Luft-Zuführungskanal 8 statt. In the gas-air supply channel 8, the gas coming from the valve 5 is passed through a gas nozzle 13, which is part of the fitting body, taking primary air blown. The intensive mixing of injected gas and suction Air to the external burner 7 is found in the gas-air supply duct 8 which is long enough instead of.

Um die Luftzufuhr auf die Ausströmgeschwindigkeit und Art des verwendeten Gases individuell anpassen zu können, ist der Eingangsöffnung des Gas-Luft-Zuführungskanales 8 ein axial verschieblicher Rohrstutzen 14 mit Ansaugtrichter 14' zugeordnet, über welchen der wirksame Abstand des Gas-Luft-Zuführungskanals 8 zur Düse 13 hin veränderbar ist, wodurch auch die Luftansaugung veränderbar ist. Dieser Rohrstutzen 14 ist betätigbar über einen in der Basisplatine gelagerten Winkelhebel 15 durch eine Drehknebelanordnung 16, deren - nicht dargestellter - Betätigungsknopf aus der - ebenfalls nicht dargestellten - Bedienblende herausragt.To the air supply on the outflow speed and type of gas used To be able to adapt individually is the entrance opening of the gas-air supply duct 8 an axially displaceable pipe socket 14 with an intake funnel 14 'is assigned, over which the effective distance of the gas-air supply channel 8 to the nozzle 13 is changeable, whereby the air intake can also be changed. This pipe socket 14 can be actuated via an angle lever 15 mounted in the base plate by a rotary knob assembly 16, the - not shown - operating button protrudes from the control panel - also not shown.

Die Gaszufuhr für die Gasbrenner-Anordnungen 4 der beiden Kochstellen des Kochfeldes erfolgt zentral über eine Gasleitung 17, die zwischen den beiden Armaturen 5 T-förmig verzweigt an die beiden Armaturen 5 angeschlossen ist. Die beiden Armaturen 5 sind symmetrisch zueinander aufgebaut und angeordnet. Sie enthalten je drei Gaskanalverzweigungen, die über eine Drehknebelanordnung 18, die über einen - nicht gezeichneten - über die Bedienblende hinausragenden Betätigungsknopf geöffnet und geschlossen werden können. Eine der Gaskanalverzweigungen in der Armatur 5 ist für konstanten Gasdurchsatz ausgelegt und über die Gaszuführungsleitung 9 dem Innenbrenner 6 zugeordnet. Nach einer Anfangsdrehbewegung der Drehknebelvorrichtung 18 wird diese Gaskanalverzweigung völlig geöffnet, und zwar für den gesamten weiteren Verstellweg dieser Drehknebelvorrichtung 18. In der Anfangsposition, in der diese Gaskanalverzweigung geöffnet ist, ist auch die Flamme am Innenbrenner zündbar. Dazu ist im Nahbereich des Innenbrenners 6 eine Zündelektrode 20 angeordnet. Die Zündspannung zur Erzeugung der Zündfunken wird generiert bei der Ausführungsform nach Fig. 1 und Fig. 5 mit Hilfe eines Zündgenerators 21, welche durch einen von der Drehknebelvorrichtung z.B. durch axiales Eindrücken betätigbaren Kontakt 24 aktiviert wird oder bei der Ausführungsform nach Fig. 2 und Fig. 4 durch die Betätigung eine Piezoelements, auf das die Drehknebelvorrichtung 18 einwirkt, indem vorbereitet durch die Vorab-Drehbewegung oder Eindrückbewegung der Drehknebelvorrichtung zum Zeitpunkt der Öffnung der besagten Gaskanalverzweigung eine Schlagbewegung auf das Piezoelement 25 ausgeübt wird.The gas supply for the gas burner arrangements 4 of the two hotplates of the hob takes place centrally via a gas line 17 which is T-shaped between the two fittings 5 is connected to the two fittings 5. The two fittings 5 are constructed and arranged symmetrically to one another. They each contain three Gas channel branches, which have a rotary knob arrangement 18, which have a - not shown - open operating button protruding beyond the control panel and can be closed. One of the gas duct branches in the valve 5 is designed for constant gas throughput and the gas supply line 9 to Internal burner 6 assigned. After an initial rotary movement of the rotary toggle device 18, this gas channel branch is opened completely, for the whole further adjustment path of this rotary toggle device 18. In the initial position, in the this gas channel branch is open, is also the flame on the inner burner ignitable. For this purpose, an ignition electrode 20 is arranged in the vicinity of the inner burner 6. The ignition voltage for generating the ignition sparks is generated at the Embodiment according to FIGS. 1 and 5 with the aid of an ignition generator 21, which by one of the rotary toggle devices e.g. operable by axial pushing Contact 24 is activated or in the embodiment of FIGS. 2 and 4 by the Actuation of a piezo element on which the rotary toggle device 18 acts by prepared by the advance rotary movement or pushing-in movement of the Rotary toggle device at the time of opening of said gas channel branch a striking movement is exerted on the piezo element 25.

Wie aus Fig 1 ersichtlich ist, ist bedarfsweise im Nahbereich des Innenbrenners auch ein Thermoelement 22 angeordnet, über welches - solange die Flamme am Innenbrenner 6 vorhanden ist - ein Hauptventil 23 für den Gasaustritt geöffnet gehalten wird. As can be seen from Fig. 1, is also in the vicinity of the inner burner if necessary a thermocouple 22 is arranged over which - as long as the flame on the inner burner 6 is present - a main valve 23 is kept open for the gas outlet.

Nach einem weiteren Drehwinkel, nach dem die erste Gaskanalverzweigung für den Innenbrenner 6 geöffnet ist und die Flamme am Innenbrenner gezündet wurde, werden zwei weitere Gaskanalverzweigungen vollständig geöffnet, die der Düse 13 und somit dem Außenbrenner 7 jedem der Gasbrenneranordnung 4 zugeordnet sind. Von der Flamme des Innenbrenners 6 her wird dabei die Flamme des Außenbrenners gezündet. Einer der beiden dem Außenbrenner 7 zugeordneten und an die Gasdüse 13 geführten Gaskanalverzweigungen ist bezüglich der Gasdurchflußmenge veränderlich und kann bis zum Ende eines vorgegebenen Drehwinkels der Drehknebelvorrichtung völlig geschlossen werden. Der zweite der an die Gasdüse 13 geführten Gaskanalverzweigungen bleibt während dessen voll geöffnet und dient der gesicherten Gaszufuhr für den Außenbrenner 7 bei Minimal-Heizleistung.After a further angle of rotation, after which the first gas duct branching for the Inner burner 6 is open and the flame on the inner burner has been ignited two further gas channel branches fully opened, the nozzle 13 and thus each of the gas burner arrangement 4 are assigned to the external burner 7. Of the flame of the inner burner 6, the flame of the outer burner is ignited. One of the two assigned to the external burner 7 and to the gas nozzle 13 guided gas channel branches is variable with regard to the gas flow rate and can until the end of a predetermined angle of rotation of the rotary toggle device be completely closed. The second of the gas channel branches led to the gas nozzle 13 remains fully open during this time and is used for secure gas supply for the external burner 7 at minimum heating output.

Die Ausgestaltung und Anordnung der Gasbrenner für zwei Kochstellen ist so konzipiert und gewählt, daß auf möglichst einfache und gleichartige Bauelemente für die beiden Kochstelleneinheiten zurückgegriffen werden kann. Die Gasarmaturen 5 sowie deren zugeordnete Verstellmechanismen für die Luftzugabe im Bereich der Düsen 13 sind spiegelbildlich und weitestgehend übereinstimmend ausgestaltet; die Bauform der Zweikreis-Gasbrenneranordnungen 4 sind völlig gleichartig. Trotzdem erlaubt es diese Bauform, daß die Betätigungselemente für die auseinanderliegenden Kochstellenbereiche an der Bedienfront nahe zusammengerückt sind und einen Betätigungsblock bilden.The design and arrangement of the gas burners for two hotplates is designed in this way and chosen that for simple and similar components for the both hotplate units can be used. The gas fittings 5 as well their associated adjustment mechanisms for the addition of air in the area of the nozzles 13 are mirror images and largely identical; the design of the Two-circuit gas burner arrangements 4 are completely identical. Nevertheless, it allows this Design that the actuators for the cooker areas apart are close together on the front panel and an operating block form.

Claims (9)

  1. Gas burner arrangement for cooking positions with a multi-circuit gas burner, which is equipped with an inner burner with lateral gas/air mixture outlet openings and with low burn performance as well as with an annular outer burner, which is arranged at a spacing from the inner burner, with gas/air mixture outlet openings, as well as with a manually actuable gas valve for conducting through, metering and blocking the burner gas feedable to the multi-circuit burners by way of separate pipe ducts, characterised in that the manually actuable gas valve (5) has three gas channel branches, which are openable and closable by valves by way of an actuating element adjustable into a plurality of setting positions and intermediate locations and of which two valve-influenced gas channel branches are designed to be each opened for a respective fixedly preset gas throughput and a further-influenced gas channel branch is designed for a variable gas throughput able to be influenced by way of the actuating element (18) and the associated valve, that a first one of the gas channel branches with fixedly predetermined gas throughput is associated with the inner burner (6) and is opened by the associated valve starting from the zero setting, optionally after a preliminary stretch of the actuating element setting over the full adjustment path thereof and that the other two gas channel branches are associated with the outer burner (7) and are activated by the associated valves over a part stretch of the adjustment path keeping open the first gas channel branch.
  2. Gas burner arrangement according to claim 1, characterised in that the gas channel branches associated with the outer burner (7) are activatable by way of the valves thereof over an end part stretch of the adjustment path, which keeps the first gas channel branch open, of the actuating element (18) and that in the initial position of this end part stretch the valve for the gas channel branch with the variable gas throughput is fully open and is closed up to an end position.
  3. Gas burner arrangement according to one of claims 1 and 2, characterised in that an ignition element (20) of an ignition device is arranged in the region of the air/gas mixture outlet openings of the inner burner (6).
  4. Gas burner arrangement according to claim 3, characterised in that the ignition device contains a piezo peak-load voltage transmitter (25).
  5. Gas burner arrangement according to claim 4, characterised in that an impact mechanism influencing the piezo peak-load voltage transmitter (25) is tensioned after overcoming the preliminary part of the actuating element setting and is released at the beginning of the adjustment path keeping open the gas channel branch for the inner burner.
  6. Gas burner arrangement according to claim 3, characterised in that the ignition device comprises an electronic peak-load voltage transmitter (21) which is actuable by way of a switch (24) actuable via the actuating element (18) by axial pressing in.
  7. Gas burner arrangement according to one of claims 1 to 6, characterised in that a thermosensor (22) is arranged in the flame region of the inner burner (6), by way of which the set gas feed to the burners is ensured by way of the gas valve in the case of flame action even outside the influencing of the actuating element in axial push-in direction.
  8. Gas burner arrangement according to one of claims 1 to 7, characterised in that the gas injector nozzle arrangement (10) for the inner burner is arranged in the lower part of the burner head (4).
  9. Gas burner arrangement according to one of claims 1 to 8, characterised in that the gas injector nozzle arrangement for the outer burner (7) is arranged in the vicinity of the gas valve, which is associated with the gas nozzle (13), which is oriented centrally to the inlet opening of the gas/air feed channel (14) for the outer burner (7) in the burner head (4).
EP98124267A 1997-12-23 1998-12-18 Gas burner arrangement for cooking hobs Expired - Lifetime EP0926437B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757733 1997-12-23
DE19757733A DE19757733A1 (en) 1997-12-23 1997-12-23 Gas burner arrangement

Publications (2)

Publication Number Publication Date
EP0926437A1 EP0926437A1 (en) 1999-06-30
EP0926437B1 true EP0926437B1 (en) 2003-07-02

Family

ID=7853296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98124267A Expired - Lifetime EP0926437B1 (en) 1997-12-23 1998-12-18 Gas burner arrangement for cooking hobs

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EP (1) EP0926437B1 (en)
DE (2) DE19757733A1 (en)
ES (1) ES2202730T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008014841B4 (en) * 2008-03-07 2015-05-28 E.G.O. Elektro-Gerätebau GmbH Gas burner module for a gas hob and gas hob

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804496B1 (en) 2000-01-28 2002-07-19 Sourdillon Sa MULTIPLE FLAME CROWN GAS BURNER
US6619279B1 (en) * 2002-01-14 2003-09-16 Tsung-Ming Liao Broiler switch structure
DE102010006276A1 (en) * 2010-01-25 2011-07-28 E.G.O. Elektro-Gerätebau GmbH, 75038 Two-circuit burner system and method of operating such a dual-circuit burner system
DE102012219039A1 (en) * 2012-10-18 2014-04-24 E.G.O. Elektro-Gerätebau GmbH Method for operating a gas cooking appliance and gas cooking appliance

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
FR2545196B1 (en) * 1983-04-29 1985-08-16 Gaz De France BURNER FOR GAS FUELS WITH INCORPORATED IGNITION AND SAFETY SYSTEMS
US5158067A (en) * 1991-10-21 1992-10-27 Dutro Company Wok adapted portable food cooker
IT1258754B (en) * 1992-01-13 1996-02-27 Smeg Spa PERFECTED BURNER FOR THREE-CONCENTRIC GAS COOKING STOVES
IT1281854B1 (en) * 1995-03-17 1998-03-03 Over All S R L GAS BURNERS FOR GLASS-CERAMIC HOB AND HEATING

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008014841B4 (en) * 2008-03-07 2015-05-28 E.G.O. Elektro-Gerätebau GmbH Gas burner module for a gas hob and gas hob

Also Published As

Publication number Publication date
ES2202730T3 (en) 2004-04-01
DE19757733A1 (en) 1999-06-24
DE59808898D1 (en) 2003-08-07
EP0926437A1 (en) 1999-06-30

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