EP1099904B1 - Hauskochfeldgasbrenner - Google Patents

Hauskochfeldgasbrenner Download PDF

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Publication number
EP1099904B1
EP1099904B1 EP20000403075 EP00403075A EP1099904B1 EP 1099904 B1 EP1099904 B1 EP 1099904B1 EP 20000403075 EP20000403075 EP 20000403075 EP 00403075 A EP00403075 A EP 00403075A EP 1099904 B1 EP1099904 B1 EP 1099904B1
Authority
EP
European Patent Office
Prior art keywords
burner
secondary air
branches
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.)
Expired - Lifetime
Application number
EP20000403075
Other languages
English (en)
French (fr)
Other versions
EP1099904A1 (de
Inventor
Pascal Thomson-SCF Propriete Intellec. Bailly
Frédéric Thomson-SCF Propriete Intellec. Branger
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.)
Brandt Industries SAS
Original Assignee
Brandt Cooking SAC
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 Brandt Cooking SAC filed Critical Brandt Cooking SAC
Publication of EP1099904A1 publication Critical patent/EP1099904A1/de
Application granted granted Critical
Publication of EP1099904B1 publication Critical patent/EP1099904B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—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.
  • 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 general 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 sufficient flames, 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 panel, 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 secondary air 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 can 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 the 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 of the 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 of rectangular shape, 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 with respect 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 represents a top view of an example of a 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)

Claims (10)

  1. Brenner (1) für ein Kochfeld, der auf einer Herdplatte angebracht ist, mit einem Brennerkopf (3) mit mehreren Zweigen (4), die mit Öffnungen (10) für die Primärmischung versehen sind und sich von einem zentralen Körper (5) erstrecken, wobei der Kopf bezüglich der Herdplatte (2) leicht überhöht ist, einem Durchgang für die Primärmischung in Verbindung mit dem Kopf und einem von dem Durchgang für die Primärmischung unabhängigen Sekundärluftdurchgang, dadurch gekennzeichnet, daß der Durchgang von Sekundärluft durch eine Öffnung (8) in der Herdplatte stattfindet, die im wesentlichen unter dem zentralen Körper des Kopfes positioniert ist, und daß er ferner Ablenkmittel (9) für die Sekundärluft aufweist, die ermöglichen, zwischen zwei Zweigen wenigstens einen Teil des Sekundärluftstroms entlang der Zweige im wesentlichen über den Öffnungen umzuschlagen.
  2. Brenner nach Anspruch 1, dadurch gekennzeichnet, daß sich die Öffnung im wesentlichen über den zentralen Körper des Brenners hinaus erstreckt, wobei sie zwischen zwei Zweigen Sekundärluftzutrittsdurchgänge läßt, die nicht von dem Körper bedeckt sind.
  3. Brenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ablenkmittel im wesentlichen horizontale Flügel (9) aufweisen, die in einer über den Öffnungen für die Primärmischung gelegenen Ebene positioniert sind, und die sich zwischen zwei Zweigen ausgehend von dem zentralen Körper des Brenners erstrecken.
  4. Brenner nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß, da der zentrale Körper des Brenners im wesentlichen kreisförmig ist, die Ablenkmittel durch einen Ring (15) gebildet sind, der an dem Kopf des Brenners positioniert und an dem zentralen Körper zentriert ist, mit einem Außendurchmesser, der wesentlich größer als derjenige des zentralen Körpers ist.
  5. Brenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Durchgang für die Primärmischung durch einen Verteiler in Verbindung mit dem zentralen Körper stattfindet, der im wesentlichen in der Öffnung zentriert ist, wobei der Sekundärluftdurchgang in dem Raum um den Verteiler passiert.
  6. Brenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er ferner Leitungsmittel für die Sekundärluft aufweist, die zwischen zwei Zweigen ein im wesentlichen vertikales Ausströmen des Sekundärluftstroms ermöglichen.
  7. Brenner nach Anspruch 6, dadurch gekennzeichnet, daß die Leitungsmittel durch einen Ring gebildet sind, der an der Herdplatte positioniert ist, im wesentlichen bezüglich des zentralen Körpers des Brenners zentriert ist und eine Gruppe von oberen Schlitzen (12) aufweist, wobei jeder obere Schlitz zwischen zwei Zweigen positioniert ist und eine im wesentlichen vertikale Wand bildet, die zwischen zwei Zweigen ein im wesentlichen vertikales Ausströmen des Sekundärluftstroms ermöglichen.
  8. Brenner nach Anspruch 7, dadurch gekennzeichnet, daß die Höhe der Schlitze zwischen zwei Zweigen leicht unter derjenigen der Öffnungen des Kopfs des Brenners liegt.
  9. Brenner nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, daß der Ring ferner unter jedem Zweig einen unteren Schlitz (13) aufweist, wobei der untere Schlitz einen Antiüberströmeffekt aufweist und eine solche Höhe hat, daß er das Ausströmen von Sekundärluft unter dem Zweig nicht behindert.
  10. Brenner nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß sich der Ring an den Umfang der Öffnung anpaßt, da die Öffnung kreisförmig ist.
EP20000403075 1999-11-10 2000-11-07 Hauskochfeldgasbrenner Expired - Lifetime EP1099904B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9914136 1999-11-10
FR9914136A FR2800845B1 (fr) 1999-11-10 1999-11-10 Bruleur a gaz pour table de cuisson domestique

Publications (2)

Publication Number Publication Date
EP1099904A1 EP1099904A1 (de) 2001-05-16
EP1099904B1 true EP1099904B1 (de) 2004-02-11

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EP20000403075 Expired - Lifetime EP1099904B1 (de) 1999-11-10 2000-11-07 Hauskochfeldgasbrenner

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EP (1) EP1099904B1 (de)
DE (1) DE60008190D1 (de)
FR (1) FR2800845B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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
CN109210576B (zh) * 2017-07-03 2020-08-11 博西华电器（江苏）有限公司 燃气灶用燃烧器的炉头、燃气灶用燃烧器及燃气灶
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
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
DE4203668A1 (de) * 1992-02-08 1993-08-12 Elektro Gas Armaturen Gasbrenner
US5405263A (en) * 1993-09-20 1995-04-11 Caloric Corporation Sealed gas burner assembly

Also Published As

Publication number Publication date
EP1099904A1 (de) 2001-05-16
FR2800845B1 (fr) 2002-01-25
DE60008190D1 (de) 2004-03-18
FR2800845A1 (fr) 2001-05-11

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