EP1099905A1 - Hauskochfeldgasbrenner - Google Patents

Hauskochfeldgasbrenner Download PDF

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Publication number
EP1099905A1
EP1099905A1 EP00403076A EP00403076A EP1099905A1 EP 1099905 A1 EP1099905 A1 EP 1099905A1 EP 00403076 A EP00403076 A EP 00403076A EP 00403076 A EP00403076 A EP 00403076A EP 1099905 A1 EP1099905 A1 EP 1099905A1
Authority
EP
European Patent Office
Prior art keywords
branches
secondary air
burner
passage
central body
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
EP00403076A
Other languages
English (en)
French (fr)
Other versions
EP1099905B1 (de
Inventor
Pascal Bailly
Frédéric 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 EP1099905A1 publication Critical patent/EP1099905A1/de
Application granted granted Critical
Publication of EP1099905B1 publication Critical patent/EP1099905B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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 burner for a hob domestic including a burner head with several branches provided orifices for the primary mixture, and extending from a central body, the head being slightly raised compared to a hearth plate, the burner further comprising a passage for the primary mixture in communication with said head, and an independent secondary air passage of passage for the primary mixture.
  • the burner is characterized in that said secondary air passage takes place through an opening in the plate hearth, positioned substantially under the central body of the head, and in this that it further comprises means for channeling the secondary air allowing between two branches, a substantially vertical flow of the flow secondary air along the central body.
  • FIG. 1 represents a partial view of an example of a burner according to the invention.
  • the burner 1 is mounted on a hearth plate 2. It comprises a burner head 3 with several branches 4 extending from a central body 5, and thus forming a star burner.
  • branches are represented.
  • 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 shape and the branches, in shape elongated, at least three in number, are evenly distributed along of the circumference of the central body 5.
  • the branches are provided with holes 6 for the primary mixture.
  • the shape of these holes defines the shape of the flames. In the example of Figure 1, these holes are shaped rectangular, giving 7 flat and wide flames.
  • the head can be formed in one piece, or a first piece forming a gas train and covered by a hat with a shape substantially identical to that of the ramp and covering it. Head 3 is slightly raised relative to the hearth plate 2, for example by means of feet 8 placed at the ends of the branches.
  • the burner also conventionally includes a passage for the primary mixture in communication with the head for supplying primary mixture of orifices. It can also include a device ignition device, a flame detection device, not shown here, or other conventional means of operating 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 in the hob.
  • 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 further 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, provides secondary air to the flames from above, allowing better combustion. Secondary air flow from above is materialized in the example of 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 in the case of flames wide and flat, as in the example in Figure 1, because in in this case, the secondary air has very little access to the sides of the flame.
  • the channeling means comprise for example a set of high slots 9, each high slot being positioned between two branches, on the hearth plate, and has a substantially wall vertical so that secondary air from the opening is channeled substantially vertically.
  • the secondary air passage opening extends beyond the central body 5 of the burner, and leaves between the branches secondary air inlet passages not covered by said central body.
  • the means of channeling for example the high slots previously described, are for example positioned directly at the edge of the opening, ensuring the channeling of the secondary air flow which is already substantially vertical at the outlet of the opening.
  • the effect of secondary air flow over flames can be reinforced by deflection means which allow, between two branches, to fold the secondary air flow along branches, substantially above the orifices.
  • deflection means which allow, between two branches, to fold the secondary air flow along branches, substantially above the orifices.
  • the deviation of secondary air can be supplied by the container itself when, in the in the case of a self-supporting burner, it can be placed directly on the head 3 of the burner. But when the container is not in place or is not supported directly by the head, it is advantageous to provide these means of deviation. They are for example formed, as illustrated in FIG. 1, substantially horizontal fins 10, located in a plane above the orifices and which extend between the branches, from the central body 5 of the burner.
  • FIG. 2 illustrates means of channeling the burner according to the invention formed of a ring 11.
  • the ring is circular, placed on the hearth plate 2, substantially centered with respect to the central body of the burner (not shown).
  • the opening for the secondary air passage is substantially circular and extends beyond the central body of the burner, so that the ring can fit on the periphery of the opening.
  • the pass for mixing primary is carried out by a collector 12 in communication with the body central and centered substantially in the opening. Secondary air passage is therefore done through the space 13 around the collector.
  • the collector being of substantially circular section, centered on the opening, the space 13 is homogeneous around the collector, and the secondary air is uniformly distributed around the collector along a substantially axis parallel to that of the burner.
  • the ring 11 is in this example formed by high slots 9 alternated with low slots 112.
  • the top slots are positioned between the branches (not shown), and allow a flow substantially vertical secondary air between the branches, along the body central, as explained above.
  • the low slots are position under the branches. Their height is such that they do not prevent the secondary air flow under the branch. Low slots have before a whole anti-overflow function. Indeed, if liquid elements by example are spilled on the hearth plate, they will not be able to infiltrate the opening of the plate, thanks to the presence of the high slots between the branches, and that of the lower slots, under the branches.
  • the secondary air flows are shown diagrammatically by arrows.
  • the arrows in thin lines represent the secondary air flow at the low slots, under the branches, and which will allow the feeding of the flames in secondary air from below.
  • the thick line arrows represent the secondary air flow at the top slots, between the branches, along the central body and which will allow the feeding of flames in secondary air from above.
  • 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 8, positioned at the ends branches.
  • the passage for the primary mixing is ensured by a manifold 12, centered on an opening in the hearth plate 2 and leaving, all around, a space 13 for the passage secondary air.
  • a ring 11, of the type described in FIG. 2 is positioned on the periphery of the opening. It includes slots high 9 between the branches, and low slots 112 under the branches.
  • secondary air deflection means are provided. They are formed here of a ring 14, positioned on the burner head, or directly integrated in the burner head, and whose external diameter is greater than that of the central body, thus making it possible to reduce the secondary air channeled thanks to to the slots 9 of the ring 11 along the branches, substantially above orifices.
  • Figure 4 shows in section, another example of a ring 11 forming channeling means, and which also has an anti-overflow effect.
  • the ring has slots high 9, positioned between the branches (not shown), each with a substantially vertical wall to create a flow substantially vertical of the secondary air flow.
  • the passage for the primary mixture is ensured by a manifold 12, centered in an opening in the hearth plate 2, and leaving, all around, a space 13 for the passage of secondary air.
  • the ring 11 does not have low slots. It has a flange 113 which rests on the hearth plate 2.
  • the ring 11 is fitted with a gutter 114 which extends around the opening, at a level lower than that of the hearth plate 2.
  • This gutter allows collect any liquids or dirt that may come from the containers of cooking, thus presenting an anti-overflow effect.
  • Space 13 for the secondary air passage therefore takes place between the manifold 12 and the gutter 114, under the central body of the burner head (not shown).
  • the secondary air flow (symbolized with arrows in thick lines) which meets the high slots 9 is then deflected vertically, forming, between the branches of the burner, the substantially vertical flow along the central body (not shown).
  • the secondary air flow (symbolized with arrows in thin line) which does not meet the slots 9 forms the flow substantially horizontal which passes under the branches.
  • the gutter 114 is in this example integral with the ring 11. It could be an independent piece, placed around the opening in the hearth plate.
  • 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)
EP20000403076 1999-11-10 2000-11-07 Hauskochfeldgasbrenner Expired - Lifetime EP1099905B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9914137A FR2800846B1 (fr) 1999-11-10 1999-11-10 Bruleur a gaz pour table de cuisson domestique
FR9914137 1999-11-10

Publications (2)

Publication Number Publication Date
EP1099905A1 true EP1099905A1 (de) 2001-05-16
EP1099905B1 EP1099905B1 (de) 2006-02-08

Family

ID=9551969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000403076 Expired - Lifetime EP1099905B1 (de) 1999-11-10 2000-11-07 Hauskochfeldgasbrenner

Country Status (4)

Country Link
EP (1) EP1099905B1 (de)
DE (1) DE60025899T8 (de)
ES (1) ES2257274T3 (de)
FR (1) FR2800846B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7628609B2 (en) * 2006-12-29 2009-12-08 Electrolux Home Products, Inc. Hub and spoke burner with flame stability

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD787041S1 (en) 2015-09-17 2017-05-16 Whirlpool Corporation Gas burner
US10837651B2 (en) 2015-09-24 2020-11-17 Whirlpool Corporation Oven cavity connector for operating power accessory trays for cooking appliance
US11777190B2 (en) 2015-12-29 2023-10-03 Whirlpool Corporation Appliance including an antenna using a portion of appliance as a ground plane
US10145568B2 (en) 2016-06-27 2018-12-04 Whirlpool Corporation High efficiency high power inner flame burner
US10551056B2 (en) 2017-02-23 2020-02-04 Whirlpool Corporation Burner base
US10660162B2 (en) 2017-03-16 2020-05-19 Whirlpool Corporation Power delivery system for an induction cooktop with multi-output inverters
US10627116B2 (en) 2018-06-26 2020-04-21 Whirlpool Corporation Ventilation system for cooking appliance
US10619862B2 (en) 2018-06-28 2020-04-14 Whirlpool Corporation Frontal cooling towers for a ventilation system of a cooking appliance
US10837652B2 (en) 2018-07-18 2020-11-17 Whirlpool Corporation Appliance secondary door

Citations (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
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

Patent Citations (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
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7628609B2 (en) * 2006-12-29 2009-12-08 Electrolux Home Products, Inc. Hub and spoke burner with flame stability
US8057223B2 (en) 2006-12-29 2011-11-15 Electrolux Home Produce Hub and spoke burner with flame stability

Also Published As

Publication number Publication date
EP1099905B1 (de) 2006-02-08
DE60025899T2 (de) 2006-08-31
DE60025899T8 (de) 2007-01-25
DE60025899D1 (de) 2006-04-20
FR2800846B1 (fr) 2002-01-25
ES2257274T3 (es) 2006-08-01
FR2800846A1 (fr) 2001-05-11

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