EP3030839A2 - Brûleur à gaz et couvercle de brûleur - Google Patents

Brûleur à gaz et couvercle de brûleur

Info

Publication number
EP3030839A2
EP3030839A2 EP14759356.0A EP14759356A EP3030839A2 EP 3030839 A2 EP3030839 A2 EP 3030839A2 EP 14759356 A EP14759356 A EP 14759356A EP 3030839 A2 EP3030839 A2 EP 3030839A2
Authority
EP
European Patent Office
Prior art keywords
burner
gas
ports
group
mixing chamber
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
EP14759356.0A
Other languages
German (de)
English (en)
Other versions
EP3030839B1 (fr
Inventor
Sjoerd Michiel VAN HAASTER
Jeroen VAN EERTEN
Antonius Cornelis Maria WOUTERS
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.)
Intell Properties BV
Original Assignee
Intell Properties BV
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 Intell Properties BV filed Critical Intell Properties BV
Publication of EP3030839A2 publication Critical patent/EP3030839A2/fr
Application granted granted Critical
Publication of EP3030839B1 publication Critical patent/EP3030839B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F23D14/08—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 axial outlets at the burner head
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • 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
    • 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
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/76—Protecting flame and burner parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • 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
    • F23D2900/00018—Means for protecting parts of the burner, e.g. ceramic lining outside of the flame tube
    • 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
    • F23D2900/14061—Special features of gas burners for cooking ranges having a coated burner cap
    • 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 comprising a burner housing with a first mixing chamber and with a second mixing chamber separated from the first mixing chamber and provided with a second gas inlet, wherein the first mixing chamber is provided with a first gas inlet and the second mixing chamber is provided with a second gas inlet, and wherein a first group of burner ports is provided at the position of the first mixing chamber and a second group of burner ports is provided at the position of the second mixing chamber in order to open the first mixing chamber and the second mixing chamber toward a pan bottom.
  • the invention also relates to a burner cover for application in such a gas burner.
  • the invention nevertheless relates particularly here to a gas burner for a cooking device or cooker for domestic and/or professional use.
  • Conventional burners for cooking devices have the drawback that the burner ports thereof are arranged radially on a periphery of the burner head. Heat is hereby lost because the burner ports are oriented outward and not directly at a bottom of a pan. This is therefore detrimental to the efficiency of the burner because a great deal of heat is relinquished unused to the surrounding area.
  • These burners are usually embodied with high capacity in order to compensate for this.
  • the burner is provided here with an auxiliary gas construction which ensures that the burner ignites and reignites uniformly and that the burner continues to burn in stable manner at both low setting and high setting.
  • This construction makes a control range between a lowest and highest capacity of the burner which is greater than if such an auxiliary gas construction were not present.
  • a conventional burner of this type thus has a control range which is typically in the order of 1:5, which translates to for instance typically in the order of 200 W at low capacity and 1000 W at full capacity.
  • a first burner extends here around a central part in which a second burner is accommodated. Both burners have their own mixing chamber with gas feed and control means and can be employed independently of each other in order to together provide a greater cooking capacity.
  • the first burner of this known device is formed by a first membrane in which burner ports are accommodated, while the second burner comprises a separate second membrane with burner ports, wherein the second membrane is wholly enclosed in the device by the first one.
  • the second membrane follows a roughly convex path here so that the surface thereof slopes downward as seen from a centre, in which surface the burner ports are arranged.
  • the present invention has for its object, among others, to provide a burner, in particular a burner for a cooking device, which is able to combine an adequate efficiency with an adequate control range with a relatively simple construction.
  • the burner housing is provided with a burner cover which covers both the first mixing chamber and the second mixing chamber and which at the position of the first mixing chamber comprises the first group of burner ports in open communication with the first mixing chamber and extending through the burner cover in order to open the first mixing chamber toward the pan bottom, and which at the position of the second mixing chamber comprises the second group of burner ports in open communication with the second mixing chamber and extending through the burner cover in order to open the second mixing chamber toward the pan bottom.
  • the gas feed means are configured for this purpose to switch a gas feed between at least two configurations, i.e.
  • both burner zones have the same capacity, each with a control range of 1:3, the assembly can thus be controlled within a range of 1:6, which already exceeds an average control range of a conventional radial burner, while the advantageous efficiency of a flat burner is retained. Because use is made according to the invention of a shared burner cover in which these zones are provided for the two burners, the complexity and required number of components for the burner as a whole can be kept relatively limited.
  • a preferred embodiment of the gas burner according to the invention has the feature however that the first group of burner ports and the second group of burner ports are dimensioned differently. Such a different dimension can for instance be manifest in the surface area taken up by the relevant group, the number of burner ports per group, the (average) cross-section of the burner ports, which may or may not be constant in a group, or a combination of one or more of suchlike or other factors. Both burner zones thus have different (peak) capacities. While the control range per burner zone is for instance in the order of 1:3 here, the combined control range can thus be made significantly broader.
  • the gas burner according to the invention has the feature that the second mixing chamber at least partially encircles the first mixing chamber and that the first group of burner ports is situated in an inner zone of the burner cover located inside an outer zone defined by the second group of burner ports.
  • a radial burner with individual concentric burner parts is known per se.
  • Such a conventional multi-ring burner can be applied to increase the control range of the burner.
  • a drawback of the conventional multi- ring burner is that the burner cover cannot consist of one part here, but the burner always has more than one head. This is a particular result of the necessary presence of an auxiliary gas construction, which serves for both the inner burner and outer burner and for the purpose of producibility.
  • This preferred embodiment of the burner according to the invention does not requires an auxiliary gas construction and hereby allows a burner cover from one optionally assembled part.
  • the burner cover has a concave form on a main surface facing away from the first mixing chamber.
  • a concave form is not only desirable from an aesthetic viewpoint, it moreover results in a mechanical durability at the greatly varying temperatures to which a burner is after all exposed.
  • the burner ports of the inner zone can here either be arranged vertically therein parallel to each other or be arranged more or less transversely of the concave surface. In the latter case central axes of burner ports from the first group of burner ports will mutually converge.
  • the converging central axes in the central part whether or not resulting from the concave form, orient the burner ports toward an optionally common focal point and thereby concentrate the flame pattern onto a centre of a pan. This is particularly desirable when a wok is used.
  • a further preferred embodiment of the gas burner according to the invention has the feature that the burner ports in the inner zone open at least substantially at a first level in the burner cover and that the burner ports in the second zone open at least substantially below the first level in the burner cover, particularly in that at the position of the outer zone the burner cover slopes downward on a main surface facing away from the second mixing chamber, and more particularly has a convex downward form at that position.
  • the position of the outer zone at least substantially below the level of the inner zone enhances a feed of secondary air over the flame bed from the outer zone toward the inner zone. This results in a better
  • a downward sloping, particularly convex form in this part of the burner moreover enhances a natural evacuation and outflow of (cooking) liquids in the unlikely event these were to fall onto the burner during or after operation thereof, so making it less easy for them to get inside the burner.
  • a further particular embodiment of the gas burner according to the invention has for this purpose the feature that flame igniting means are provided with at least one spark electrode extending at the position of an area of the burner cover lying between the first group of burner ports and the second group of burner ports.
  • flame igniting means are provided with at least one spark electrode extending at the position of an area of the burner cover lying between the first group of burner ports and the second group of burner ports.
  • the gas burner according to the invention is further characterized here in that a shared spark electrode for the first group of burner ports and second group of burner ports extends at least substantially halfway along the area of the burner cover. The spark electrode is thus positioned such that the spark emitted thereby will be able to ignite both the first burner zone and the second burner zone.
  • a thermocouple which is normally applied with the spark electrode for safety purposes and will thus be heated by each of the two zones.
  • a further particular embodiment of the gas burner according to the invention has the feature that the first gas inlet and the second gas inlet are at least connectable to shared gas feed control means, and that the gas feed control means are able and configured to selectively provide a controllable gas path to at least one of the two said gas inlets individually or to both gas inlets jointly. It is thus possible to control the two burner zones using the same control means and uniform operating means extending therefrom. All logic and control of the two burner zones can be provided therein without the user being aware of it.
  • a particularly practical embodiment of the gas burner according to the invention has the feature that the first chamber with the first group of burner ports is able and configured to produce a burner capacity in a range between about 100 W and 1200 W.
  • the first chamber thus provides a group of burner ports in a first burner zone with which warming, simmering or medium cooking can take place at moderate to average capacity, with a control range varying from a minimum of the order of 100-400 W to a maximum of the order of 700-1200 W.
  • the gas burner according to the invention is characterized in that the second chamber with the second group of burner ports is able and configured to produce a burner capacity in a range between about 400 W and 3800 W.
  • the second chamber with burner ports thus provides a second burner zone which allows an average to high capacity so that slow cooking or frying or even stir-frying can be realized with the same burner. In the latter case both zones can optionally be operated
  • a flat burner is in principle more vulnerable and susceptible to the ingress of moisture and other contamination, for instance in the event a pan being used for cooking were to boil over.
  • a further preferred embodiment of the burner according to the invention has the feature that at least at the position of at least one of the first group of burner ports and the second group of burner ports the burner cover has a hydrophobic surface on a side thereof facing toward the pan bottom. Ingress of moisture into the mixing chamber via the burner ports is thus rendered more difficult by an action of the hydrophobic surface which increases the surface tension of the moisture at this location.
  • a further preferred embodiment of the burner according to the invention has in this respect the feature that the hydrophobic surface of the burner cover comprises a heat-resistant hydrophobic covering of the cover, in particular a heat-resistant coating on the basis of silicon dioxide. This covering or coating is preferably applied after the burner ports have been provided in the cover so that the walls of the ports are hereby likewise covered and will have a hydrophobic character.
  • the invention also relates to such a burner cover comprising a hydrophobic surface at the position of a group of burner ports located on the surface, these burner ports extending through the cover.
  • figure 1 shows a perspective view of an exemplary embodiment of a gas burner according to the invention.
  • figure 2 shows a cross-section of the gas burner of figure 1.
  • the figures are otherwise purely schematic and not always drawn to scale. Some dimensions in particular may be exaggerated to greater or lesser extent for the sake of clarity.
  • the gas burner shown in the figures is particularly suitable for application in a gas cooking device, optionally in combination with other types of burner or heat source.
  • the burner comprises a burner housing 10 which is fixedly mounted with a base part 11 in a hob (not further shown) of a cooking device (not further shown).
  • a fireproof burner head 12 lies on base part 11 of the burner housing.
  • Burner head 12 comprises on an upper side thereof a burner cover 20 which is riveted or welded thereto or otherwise firmly connected thereto.
  • the burner head and the burner cover can optionally also be formed integrally, for instance be an aluminium casting.
  • the burner head with the burner cover lies in freely detachable manner on the base part of the burner housing during use so that it can be easily removed at any time, for instance in order to be cleaned.
  • the base part is on the other hand fixed in a lower tray of a hob and coupled therein, usually together with one or more further burners, to gas feed means of the hob.
  • a collecting tray with openings at the position of the burner(s) is arranged over the burner(s) and received here on a flanged edge 13 of the burner provided for the purpose.
  • Such a collecting tray can be formed from enamelled, lacquered or otherwise coated or preserved steel (plate) and in that case be screwed or riveted onto flanged edge 13.
  • a glass collecting tray it is fixed on the flanged edge via an adapter ring in order to avoid point load(s) in the glass.
  • Burner cover 20 provides on an exposed main surface thereof an extra-smooth top layer or coating, for instance of enamel, which prevents encrusting of cooking residues and moreover imparts an aesthetically attractive appearance to the burner.
  • a casting in respect of the burner cover it is optionally possible to make use of a flat plate part which is eventually shaped into the desired form.
  • the burner housing comprises a first mixing chamber 31 and at least one further, second mixing chamber 32. In both cases these are cavities located partially in base part 11 of the burner housing and partially in burner cover 12. Both chambers are bounded on an upper side by burner cover 20.
  • the burner cover comprises here a first group 21 of burner ports at the position of first mixing chamber 31 and a second group 22 of burner ports at the position of the second mixing chamber. In both cases the burner ports lie on the substantially flat main surface of the burner cover.
  • the burner ports can be arranged in diverse ways and openings are for instance formed during casting of the burner cover or arranged therein afterward by means of a mechanical material-removing operation such as drilling, milling, stamping or punching, or cut into the burner cover using a laser.
  • Burner ports 21, 22 extend in the burner cover over a whole thickness thereof, so that mixing chambers 31, 32 open to outside via the burner ports.
  • Burner ports 21, 22 typically have a diameter in the order of 0.4 to 2.5 mm, particularly between 1.2 and 1.6 mm, and are placed close together such that they will ignite each other. This provides for a stable flame pattern without a separate auxiliary gas construction (ring) or other provision being necessary for this purpose.
  • the cover takes a hydrophobic form over the whole surface area facing toward the pan bottom.
  • a coating is selected in this respect on the basis of silicon dioxide, which is commercially available under the brand name Poliant ® .
  • This coating is transparent, scratch-resistant and heat-resistant up to at least 500°C.
  • an effective barrier is raised against penetration of moisture.
  • the coating can be arranged in relatively simple manner by being sprayed or brushed onto a clean and grease- free metal surface, and then only further requires adequate drying.
  • Mixing chambers 31, 32 are each individually provided with respectively a first and a second gas inlet 41, 42 which are in turn coupled, at least in assembled state, to gas feed means 51, 52.
  • the gas feed means are controllable and provided in a gas feed to one of the two mixing chambers individually or both mixing chambers jointly. Use can optionally also be made of a configuration wherein only one of the two groups is individually controllable, in combination with a position in which both groups are controlled. Primary air which is necessary for the combustion of the gas is also drawn in here.
  • the two groups of burner ports can also be arranged completely adjacently of each other or in other configuration relative to each other, a concentric arrangement is selected in the present embodiment.
  • the first group of burner ports forms here a central burner part and the second group lies therearound in a ring as peripheral burner part. This can be seen particularly clearly in the perspective view of figure 1.
  • igniting means 25 are provided in the form of an electronic spark ignition and flame safety (thermocouple).
  • An electrical connection 45 therefor exits the burner on an underside and is connected to control means 75, which also control the gas feed to both burner parts 21, 22. Due to the at least roughly central position of igniting means 25 between the two burner parts 21, 22, the two burner parts 21, 22 can be ignited thereby.
  • Manual operation of the gas feed means 70 and spark ignition 25 is possible with an operating means 75, such as for instance an intuitive rotary knob.
  • the gas feed means guide a gas flow via first inlet 41 to the first mixing chamber 31 with a first group 21 of burner ports so that only the central part of the burner ignites.
  • This central part has a slightly convex (hollow) form, see figure 2, wherein or whereby burner ports 21 are oriented slightly inward.
  • the hollow form enhances an elastic accommodation of mechanical stresses which can occur at greatly varying temperatures.
  • the embodiment of the central part of the cover thus contributes toward the durability thereof.
  • Burner ports 21 are provided more or less parallel to each other in the central part and are oriented vertically here.
  • Central burner part 21 is dimensioned such that it generates a peak capacity of about 800 W, which is controllable in continuously variable or stepwise manner from a minimum in the order of 200 W to this maximum in the order of 800 W.
  • the gas feed means guide a gas flow to inlet 42 and mixing chamber 32 for the second burner part 22, which has a downward sloping concave form on the main surface.
  • Burner ports 22 in this part of the cover are arranged more or less transversely of the surface thereof, so that the flame pattern originating therefrom will diverge so as to spread over the pan bottom. Because this part of the cover slopes downward from central part 21, the burner ports of the second group all lie at least substantially below a level of burner ports 21 of the central part. This greatly enhances a sufficient secondary air transport to the burner ports in the central part, which will thereby produce a better combustion. The secondary air flows here over the second burner ports.
  • the downward sloping form moreover ensures that possible cooking liquid or other liquid can flow away easily off this part and is less likely to enter the burner through ports 22.
  • the second burner part is dimensioned such that it generates a maximum burner capacity of about 2200 W, which is controllable in continuously variable or stepwise manner from the order of 400 W to this maximum of 2200 W. If desired, this burner part can be given larger dimensions and can be scaled to a maximum capacity in the order of 4 kW.
  • both inlets 41, 42 are supplied simultaneously by the gas feed means and the burner can be operated at full capacity.
  • a total burner capacity of 3 kW is thus provided in this case.
  • the gas burner described in this embodiment in contrast to a flat burner construction without auxiliary gas device, can be operated over an enormous capacity range extending from a relatively light minimum capacity of 200 W to a maximum capacity of 3000 W. This corresponds to a control ratio of 1:15, which even exceeds that of at least many radial burners. If the second part is scaled to the order of 4 kW, a peak capacity in the order of 5 kW can thus even be realized for the burner as a whole.
  • the burner will thus be applied mainly in a gas cooker together with a number of optionally similar burners.
  • the burners can have mutually differing dimensions here in order to provide different cooking levels within the cooker.
  • the two burner parts can also be selected with a different mutual ratio in terms of capacity per burner in order to provide a broader or narrower range per burner.
  • the zones can moreover have the same or differing dimensions in terms of capacity.
  • the outer zone lies in a downward sloping, concave part of the burner cover, although this part can also be given a flat form more or less parallel to the central part. Besides lying at the same level, use can also be made here of a step wherein this outer part nevertheless lies at a lower level in order to impede to lesser extent a secondary air transport to the inner zone.
  • the embodiment is based on the option of being able to operate the two burner parts with groups of burner ports individually as well as both parts together. It is also possible to opt instead for a control wherein only one of the two burner parts will be supplied individually in combination with one or more positions in which the two burner parts are in operation together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Incineration Of Waste (AREA)

Abstract

L'invention concerne un brûleur à gaz, par exemple pour un dispositif de cuisson, comprenant un logement de brûleur (10) doté d'un couvercle de brûleur (20). Le couvercle de brûleur comprend des groupes distincts d'orifices de brûleur (21, 22) qui sont alimentés individuellement. Un premier groupe (21) d'orifices de brûleur forme ainsi une première partie brûleur dotée d'une première admission de gaz (41). Un second groupe (22) d'orifices de brûleur forme une seconde partie brûleur (22) dotée d'une seconde admission de gaz (42).
EP14759356.0A 2013-08-09 2014-08-07 Brûleur à gaz et couvercle de brûleur Active EP3030839B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2011286A NL2011286C2 (nl) 2013-08-09 2013-08-09 Gasbrander
PCT/NL2014/050552 WO2015020525A2 (fr) 2013-08-09 2014-08-07 Brûleur à gaz et couvercle de brûleur

Publications (2)

Publication Number Publication Date
EP3030839A2 true EP3030839A2 (fr) 2016-06-15
EP3030839B1 EP3030839B1 (fr) 2022-04-06

Family

ID=51492418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14759356.0A Active EP3030839B1 (fr) 2013-08-09 2014-08-07 Brûleur à gaz et couvercle de brûleur

Country Status (7)

Country Link
EP (1) EP3030839B1 (fr)
CN (1) CN105612387B (fr)
AU (1) AU2014305221B2 (fr)
ES (1) ES2919868T3 (fr)
NL (1) NL2011286C2 (fr)
RU (1) RU2705533C2 (fr)
WO (1) WO2015020525A2 (fr)

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RU2679332C1 (ru) * 2015-05-19 2019-02-07 Сомипресс-Сочьета Металли Иньетати С.Р.Л. Газовая горелка с двойной коронкой для пламени
ES2648697B1 (es) * 2016-07-04 2018-10-22 Bsh Electrodomésticos España, S.A. Quemador de gas y aparato de cocción doméstico
EP3361154B1 (fr) * 2017-02-14 2021-03-17 Electrolux Professional S.p.A. Agencement de cuisinière à gaz ayant un support de wok et une table de brûleur à gaz
CN113357631B (zh) * 2020-03-06 2022-08-12 宁波方太厨具有限公司 一种燃烧器火盖以及应用有该燃烧器火盖的燃烧器
CN111853789B (zh) * 2020-07-17 2022-04-12 海信(广东)厨卫系统有限公司 一种平板式燃烧器及平板式燃气灶
US11940148B2 (en) 2021-10-28 2024-03-26 Electrolux Appliances Aktiebolag Multi injection dual ring gas burner for domestic gas cooking units
WO2024068496A1 (fr) * 2022-09-26 2024-04-04 Bekaert Combustion Technology B.V. Plaque de sole de brûleur de gaz à prémélange
NL2033134B1 (en) * 2022-09-26 2024-04-03 Bekaert Combustion Tech Bv Premix gas burner deck plate

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US6132205A (en) * 2000-01-06 2000-10-17 Harneit; Uwe Multi-ring sealed gas burner
EP2799771A2 (fr) * 2013-04-29 2014-11-05 Indesit Company S.p.A. Brûleur à gaz, en particulier pour appareil de cuisson

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RU2016107822A (ru) 2017-09-14
AU2014305221A1 (en) 2016-03-17
WO2015020525A3 (fr) 2015-08-13
CN105612387A (zh) 2016-05-25
EP3030839B1 (fr) 2022-04-06
RU2705533C2 (ru) 2019-11-07
AU2014305221B2 (en) 2018-11-08
RU2016107822A3 (fr) 2018-04-03
WO2015020525A2 (fr) 2015-02-12
ES2919868T3 (es) 2022-07-28
NL2011286C2 (nl) 2015-02-10
CN105612387B (zh) 2019-06-11

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