EP1099904A1 - Brûleur à gaz pour table de cuisson domestique - Google Patents
Brûleur à gaz pour table de cuisson domestique Download PDFInfo
- Publication number
- EP1099904A1 EP1099904A1 EP00403075A EP00403075A EP1099904A1 EP 1099904 A1 EP1099904 A1 EP 1099904A1 EP 00403075 A EP00403075 A EP 00403075A EP 00403075 A EP00403075 A EP 00403075A EP 1099904 A1 EP1099904 A1 EP 1099904A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- branches
- secondary air
- central body
- head
- 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
Links
Images
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
-
- 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
- F23D2900/14064—Burner heads of non circular shape
Definitions
- the invention relates to a gas burner for a hob. domestic, and more specifically a secondary air star burner.
- Secondary air burners In secondary air burners, a partial premix of combustible gas and air is produced upstream of the flames and the complement of air necessary for combustion is taken from the ambient air located at neighborhood of flames. Secondary air is therefore the air taken from the vicinity flames as opposed to primary air premixed with gas upstream flames.
- Gas burners on a domestic cooktop include a burner head located above a hearth plate.
- the air and gas premix (primary mixture) escapes through orifices located on the periphery of the burner head.
- This type of burner requires generally that a free space is provided in the vicinity of the flames so as not to not disturb the arrival of secondary air. If secondary air does indeed arrive not in the vicinity of the flames in sufficient quantity, combustion is incomplete and produces toxic gases, including carbon monoxide (CO).
- This free space imposes a minimum height between the hearth plate and the flames and between the flames and the bottom of the container. Free space sufficient also requires simple shapes for the burner head which is generally circular.
- the term 'star' is here taken in the broad sense. It is any burner including a burner head with several branches extending from a central body, these branches can take any form. In this type of burner, the branches are provided with primary mixture outlet ports which are the flame exit ports.
- the invention solves these difficulties and proposes a gas burner in star, whose height between the hearth plate and the level of the flames as well between the flame level and the container can be reduced to minimum, while ensuring an optimal supply of air to the flames secondary.
- the invention relates to a hob burner comprising a burner head with several branches provided with orifices for the primary mixture, and extending from a central body, the head being slightly raised compared to a hearth plate, a passage for the primary mixture in communication with said head, and an air passage secondary independent of the passage for the primary mixture, characterized in that said passage takes place through an opening in the hearth plate, positioned substantially under the central body of the head, and in that it further comprises means for deflecting the secondary air allowing, between two branches, to fold down at least part of the secondary air flow along the branches, substantially above the orifices.
- FIG. 1 represents a view of an example of a burner according to the invention.
- the burner 1 is mounted on a hearth plate 2. It includes a burner head 3 with several branches 4 extending from a central body 5, and thus forming a star burner.
- the shape of the central body, as well as that of the branches and the number of these branches is arbitrary.
- the central body has a substantially circular in shape and the branches, elongated, in number of five, are distributed evenly along the circumference of the body central 5.
- the branches are provided with openings for the primary mixture.
- the shape of these orifices defines the shape of the flames.
- the orifices are positioned in the same plane, defining a flame level 6.
- the head can be formed in one piece, or first part forming a gas rail and covered by a shaped cap substantially identical to that of the ramp and covering it.
- Head 3 is slightly raised compared to hearth plate 2, for example at means of feet 7 placed at the ends of the branches.
- the burner includes additionally conventionally a passage for the primary mixture in communication with the head for feeding the primary mixture of orifices. It may also include an ignition or flame detection, not shown here, or other conventional means of operation of a gas burner.
- the burner further comprises an air passage secondary independent of the passage for the primary mixture and which takes place through an opening 8 in the hearth plate.
- This opening is positioned substantially under the central body of the head in order to provide air secondary to the flames of all the branches.
- secondary air from the opening can flow under the branches, allowing a supply of secondary air flames from below. This flow is materialized in Figure 1 by arrows in thin line.
- the burner 1 also comprises means of deflection which allow, between two branches, to fold at least one part of the secondary air flow along the branches, substantially above orifices.
- These deflection means make it possible to deflect at least part the secondary air flow from the opening 8, thus creating a supply of secondary air to the flames from above.
- They can be placed on the burner head, or directly integrated into it. For example, they are formed, as illustrated by FIG. 1, of fins 9 substantially horizontal, located in a plane above that of orifices and which extend between the branches, from the central body 5 of the burner.
- the opening 8 for the passage of secondary air extends beyond the central body 5 of the burner, which allows to leave between the branches of the secondary air inlet passages not covered by said central body.
- secondary air for example injected by a system injection located under the hearth plate, can be distributed in the hollow of each branch of the burner, parallel to its axis. Between the branches, along the central body of the burner, a significant part of the secondary air flow follows a substantially vertical flow, then is diverted by the means of deflection, to form a secondary air flow along the branches, above level 6 of the flames. this flow is materialized on the Figure 1 by arrows in thick line.
- the air supply secondary flames is carried out both from below and by the above. This effect is particularly advantageous, for example in the case wide and flat flames, because in this case the secondary air has very little access to the sides of the flame.
- the passage for the primary mixture is carried out by a collector (not shown) in communication with the body central, and centered substantially in the opening. Secondary air passage is therefore done by the space around the collector.
- the collector being of substantially circular section, centered on the opening, the space around the collector is homogeneous, and the secondary air can be uniformly distributed in the hollow of each branch.
- FIG. 2 shows a partial view of a burner according to the invention.
- a burner head 3 with several branches 4 extending from a central body 5, and thus forming a star burner.
- branches 4 are provided orifices 10 for the primary mixture, defining a level of flames 6.
- these orifices are rectangular, giving flames 11 flat and wide.
- fins 9 forming the deflection means described above.
- the burner 1 also comprises means for secondary air ducting allowing between two branches, a substantially vertical flow of air flow along the central body.
- the Applicant has in fact shown that the channeling of the secondary air flow the along the central body, that is to say in the hollow which separates two branches, improved the secondary air supply to the flames by the above.
- the secondary air flow through the top is indicated by arrows in thick lines, while the secondary air flow from below is indicated by arrows in thin lines.
- the channeling means are formed for example of a ring positioned on the hearth plate, substantially centered in relation to the body central of the burner, and having a set of high slots 12, each high niche being positioned between two branches and having a wall substantially vertical, allowing flow between two branches substantially vertical of the secondary air flow.
- the opening for the passage of secondary air is substantially circular, so that the ring can fit around the periphery of the opening.
- the ring Under each branch, the ring can also have a low niche whose height is such that it does not prevent the flow of secondary air under the branch.
- Low slots have above all a anti-overflow function. Indeed, if liquid is spilled from a container in place on the burner, it will not be able to seep into the opening of the plate hearth, thanks to the presence of high slots between the branches, and to that low slots under the branches.
- FIG. 3 shows a top view of an example burner according to the invention.
- the burner 1 is here a star burner with five branches (4), distributed around a central body 5 of substantially circular shape.
- the head, formed of the central body and branches, is slightly raised by relation to the hearth plate by means of the feet 7, positioned at the ends branches.
- the passage for the primary mixture is ensured by a manifold 14, centered on the opening 8 in the hearth plate 2 and leaving, all around, a space for the passage of secondary air.
- the secondary air deflection means are formed by a ring 15, positioned on the burner head, and the external diameter is greater than that of the central body, thus allowing fold the secondary air down along the branches, substantially above the orifices.
- the arrows in thin lines symbolize the flow of secondary air under the branches, to feeding the flames from below, while the arrows in line thick symbolize the supply of secondary air to the flames from above.
- a ring of the type described above, is by example positioned on the periphery of the opening. It includes high slots 12 between the branches, and low slots 13 under the branches. The high slots make it possible to strengthen between the branches, the secondary air flow that feeds the flames from above.
- the invention is not limited to the examples described previously.
- it applies to any form of burner in secondary air star and allows, in a simple way, a very good supply of flames with secondary air, whatever the shape of these flames.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
- la figure 1, une vue d'un exemple de brûleur selon l'invention ;
- la figure 2, une vue partielle d'un autre exemple de brûleur selon l'invention ;
- la figure 3, une vue de dessus d'un exemple de réalisation du brûleur selon l'invention.
Claims (10)
- Brûleur (1) pour table de cuisson comprenant une tête de brûleur (3) avec plusieurs branches (4) munies d'orifices (10) pour le mélange primaire, et s'étendant d'un corps central (5), la tête étant légèrement surélevée par rapport à une plaque d'âtre (2), un passage pour le mélange primaire en communication avec ladite tête, et un passage d'air secondaire indépendant du passage pour le mélange primaire, caractérisé en ce que ledit passage s'effectue par une ouverture (8) dans la plaque d'âtre, positionnée sensiblement sous le corps central de la tête, et en ce qu'il comporte en outre des moyens de déviation (9) de l'air secondaire permettant, entre deux branches, de rabattre au moins une partie du flux d'air secondaire le long des branches, sensiblement au-dessus des orifices.
- Brûleur selon la revendication 1, caractérisé en ce que ladite ouverture s'étend sensiblement au-delà du corps central du brûleur, laissant entre deux branches des passages d'arrivée d'air secondaire non couverts par ledit corps.
- Brûleur selon l'une des revendications précédentes, caractérisé en ce que lesdits moyens de déviation comprennent des ailettes (9) sensiblement horizontales, positionnées dans un plan situé au-dessus des orifices pour le mélange primaire et qui s'étendent entre deux branches, à partir du corps central du brûleur.
- Brûleur selon l'une des revendications 1 ou 2, caractérisé en ce que le corps central du brûleur étant de forme sensiblement circulaire, lesdits moyens de déviation sont formés d'un anneau (15) positionné sur la tête du brûleur, centré sur ledit corps central, de diamètre externe sensiblement supérieur à celui du corps central.
- Brûleur selon l'une des revendications précédentes, caractérisé en ce que le passage pour le mélange primaire s'effectue par un collecteur en communication avec le corps central et centré sensiblement dans ladite ouverture, le passage d'air secondaire se faisant dans l'espace autour du collecteur.
- Brûleur selon l'une des revendications précédentes, caractérisé en ce qu'il comprend en outre des moyens de canalisation de l'air secondaire permettant entre deux branches, un écoulement sensiblement vertical du flux d'air secondaire.
- Brûleur selon la revendication 6, caractérisé en ce que lesdits moyens de canalisation sont formés d'une bague positionnée sur la plaque d'âtre, sensiblement centrée par rapport eu corps central du brûleur, et présentant un ensemble de créneaux hauts (12), chaque créneau haut étant positionné entre deux branches et présentant une paroi sensiblement verticale, permettant entre deux branches l'écoulement sensiblement vertical du flux d'air secondaire.
- Brûleur selon la revendication 7, caractérisé en ce que la hauteur des créneaux entre deux branches est légèrement inférieure à celle des orifices de la tête du brûleur.
- Brûleur selon l'une des revendications 6 ou 7, caractérisé en ce que la bague présente en outre sous chaque branche un créneau bas (13), ledit créneau bas présentant un effet anti-débordement et étant de hauteur telle qu'il n'empêche pas l'écoulement d'air secondaire sous la branche.
- Brûleur selon l'une des revendications 7 à 9, caractérisé en ce que l'ouverture étant de forme circulaire, la bague s'adapte sur la périphérie de l'ouverture.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9914136A FR2800845B1 (fr) | 1999-11-10 | 1999-11-10 | Bruleur a gaz pour table de cuisson domestique |
FR9914136 | 1999-11-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1099904A1 true EP1099904A1 (fr) | 2001-05-16 |
EP1099904B1 EP1099904B1 (fr) | 2004-02-11 |
Family
ID=9551968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000403075 Expired - Lifetime EP1099904B1 (fr) | 1999-11-10 | 2000-11-07 | Brûleur à gaz pour table de cuisson domestique |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1099904B1 (fr) |
DE (1) | DE60008190D1 (fr) |
FR (1) | FR2800845B1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7322820B2 (en) * | 2001-11-08 | 2008-01-29 | Bsh Home Appliances Corporation | Controlled flame gas burner |
US7628609B2 (en) | 2006-12-29 | 2009-12-08 | Electrolux Home Products, Inc. | Hub and spoke burner with flame stability |
WO2019008456A1 (fr) * | 2017-07-03 | 2019-01-10 | BSH Hausgeräte GmbH | Tête de brûleur de brûleur pour table de cuisson à gaz, brûleur pour table de cuisson à gaz et table de cuisson à gaz |
CN109973996A (zh) * | 2017-12-27 | 2019-07-05 | 博西华电器(江苏)有限公司 | 用于燃气灶的燃烧器的炉头、燃烧器及燃气灶 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109827196B (zh) * | 2019-01-28 | 2020-08-14 | 上海谷井不锈钢制品有限公司 | 一种高效节能炉灶 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1663438A (en) * | 1924-12-27 | 1928-03-20 | American Stove Co | Stove |
US2232482A (en) * | 1938-04-30 | 1941-02-18 | G & J Teller | Cooking range |
US2344144A (en) * | 1941-01-02 | 1944-03-14 | Roper Corp Geo D | Cooking top burner for gas ranges |
US5405263A (en) * | 1993-09-20 | 1995-04-11 | Caloric Corporation | Sealed gas burner assembly |
US5649822A (en) * | 1992-02-08 | 1997-07-22 | Elektro-Und Gas-Armaturen-Fabrik Gmbh | Gas burner |
-
1999
- 1999-11-10 FR FR9914136A patent/FR2800845B1/fr not_active Expired - Fee Related
-
2000
- 2000-11-07 DE DE60008190T patent/DE60008190D1/de not_active Expired - Lifetime
- 2000-11-07 EP EP20000403075 patent/EP1099904B1/fr not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1663438A (en) * | 1924-12-27 | 1928-03-20 | American Stove Co | Stove |
US2232482A (en) * | 1938-04-30 | 1941-02-18 | G & J Teller | Cooking range |
US2344144A (en) * | 1941-01-02 | 1944-03-14 | Roper Corp Geo D | Cooking top burner for gas ranges |
US5649822A (en) * | 1992-02-08 | 1997-07-22 | Elektro-Und Gas-Armaturen-Fabrik Gmbh | Gas burner |
US5405263A (en) * | 1993-09-20 | 1995-04-11 | Caloric Corporation | Sealed gas burner assembly |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7322820B2 (en) * | 2001-11-08 | 2008-01-29 | Bsh Home Appliances Corporation | Controlled flame gas burner |
US7628609B2 (en) | 2006-12-29 | 2009-12-08 | Electrolux Home Products, Inc. | Hub and spoke burner with flame stability |
US7871264B2 (en) | 2006-12-29 | 2011-01-18 | Electrolux Home Products, Inc. | Hub and spoke burner port configuration |
US8057223B2 (en) | 2006-12-29 | 2011-11-15 | Electrolux Home Produce | Hub and spoke burner with flame stability |
WO2019008456A1 (fr) * | 2017-07-03 | 2019-01-10 | BSH Hausgeräte GmbH | Tête de brûleur de brûleur pour table de cuisson à gaz, brûleur pour table de cuisson à gaz et table de cuisson à gaz |
US11578872B2 (en) | 2017-07-03 | 2023-02-14 | BSH Hausgeräte GmbH | Burner head of burner for gas cooktop, burner for gas cooktop, and gas cooktop |
CN109973996A (zh) * | 2017-12-27 | 2019-07-05 | 博西华电器(江苏)有限公司 | 用于燃气灶的燃烧器的炉头、燃烧器及燃气灶 |
CN109973996B (zh) * | 2017-12-27 | 2021-07-06 | 博西华电器(江苏)有限公司 | 用于燃气灶的燃烧器的炉头、燃烧器及燃气灶 |
Also Published As
Publication number | Publication date |
---|---|
DE60008190D1 (de) | 2004-03-18 |
FR2800845B1 (fr) | 2002-01-25 |
EP1099904B1 (fr) | 2004-02-11 |
FR2800845A1 (fr) | 2001-05-11 |
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