EP2487413B1 - Table de cuisson avec brûleur à gaz - Google Patents

Table de cuisson avec brûleur à gaz Download PDF

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Publication number
EP2487413B1
EP2487413B1 EP12154772.3A EP12154772A EP2487413B1 EP 2487413 B1 EP2487413 B1 EP 2487413B1 EP 12154772 A EP12154772 A EP 12154772A EP 2487413 B1 EP2487413 B1 EP 2487413B1
Authority
EP
European Patent Office
Prior art keywords
cooking top
chamber
burner
cap
cooking
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.)
Active
Application number
EP12154772.3A
Other languages
German (de)
English (en)
Other versions
EP2487413A1 (fr
Inventor
Silvio Corrias
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.)
Whirlpool EMEA SpA
Original Assignee
Indesit Co SpA
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.)
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Publication date
Application filed by Indesit Co SpA filed Critical Indesit Co SpA
Priority to PL12154772T priority Critical patent/PL2487413T3/pl
Publication of EP2487413A1 publication Critical patent/EP2487413A1/fr
Application granted granted Critical
Publication of EP2487413B1 publication Critical patent/EP2487413B1/fr
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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

Definitions

  • the present invention relates to a cooking top comprising a gas burner, in particular for a food cooking appliance, according to the preamble of claim 1.
  • a cooking top comprising a gas burner, in particular for a food cooking appliance, according to the preamble of claim 1.
  • Such a cooking top having the features specified in the preamble of claim 1 is known from EP 2 105 662 A1 .
  • a gas burner in particular for a food cooking appliance, which is of the type that comprises a cup within which an injector is positioned for emitting gas coming from a suitable duct that feeds gas to said burner.
  • Said burner also comprises a body associated with said cup and comprising a Venturi effect chamber extending vertically; usually the Venturi effect chamber is arranged coaxial to said injector.
  • gas is typically mixed with primary air above the cooking top whereon the burner is installed, in particular inside the cup and/or the chamber acting as a Venturi tube.
  • said known burner comprises a cap associated with said body, which cap allows the gas to come out through a plurality of apertures, which are usually obtained in an upper surface of said body.
  • the cap rests on the body, and the air-gas mixture comes out of said plurality of apertures substantially horizontally; therefore, the flame obtained from said air-gas mixture is also substantially horizontal, i.e. not directly aimed at a cooking container positioned above the burner.
  • a substantial drawback of the above-described burner is that its body and cap causing the air-gas mixture to come out substantially horizontally make it very difficult to direct the burner flames upwards, i.e. towards the cooking container.
  • the above-described burner system may even require that the caps be replaced with other components having an appropriate profile.
  • grates that allow the cooking container to be lifted farther upwards from the cooking top whereon the burner is positioned, so that the point from where the flames exit the burner is adequately spaced from said cooking container; sufficient room may thus be created for the flames to take a substantially vertical direction, thereby ensuring satisfactory burner efficiency.
  • a cooking top comprising a gas burner, in particular for a food cooking appliance, which is so designed as to ensure adequate burner efficiency.
  • reference numeral 1 designates as a whole a gas burner, in particular for a food cooking appliance for household use, in accordance with the present invention.
  • the burner 1 comprises a cup 10 comprising an injector 11 for letting out gas coming from a duct 12 that supplies gas to said burner 1.
  • the duct 12 is made as one piece with said cup 10; it is however clear that said duct 12 may also be provided as a body distinct from the cup 10, and then be associated therewith through fastening means known in the art.
  • the burner 1 also comprises a body 20 associated with said cup 10 and comprising a Venturi effect chamber 21, in particular said chamber 21 being positioned substantially coaxial to said injector 11.
  • said Venturi effect chamber 21 extends substantially vertically within said body 20; it is clear that, for the purposes of the present invention, the term "vertical" is used with reference to a burner 1 installed on a cooking appliance.
  • the chamber 21 also extends in a central position within said body 20, i.e. in such a way as to substantially coincide with an axis (substantially coinciding with the straight line A-A of Fig. 2a ) of the body 20; it is however clear the Venturi effect chamber 21 may also be arranged differently within said body 20.
  • the burner 1 further comprises a cap 30 associated with said body 20, so as to allow the gas to come out of a plurality of apertures 31.
  • said cap 30 has a dome-like shape.
  • said plurality of apertures 31 are obtained in the cap 30, in particular near a lower portion 30I of said cap 30; the apertures 31 directly obtained in the cap 30 cause the cap 30, which constitutes the upper cover of the body 20, to act also as a flame divider, thus clearly distinguishing the burner 1 according to the present invention from traditional "cup-like" burners, wherein the flame divider means are obtained in the external perimeter of the body (precisely at the external interface between the body and the cap).
  • said plurality of apertures 31 may also be obtained in the body 20, in particular near an upper edge 20B (visible in Fig. 2b ) of said body 20.
  • Said Venturi effect chamber 21 comprises an inlet portion 21A, an intermediate portion 21B and an outlet portion 21C, said outlet portion 21C being positioned in a first horizontal plane P1 lying above a second horizontal plane P2 in which said apertures 31 lie.
  • said inlet portion 21A is that part of the chamber 21 which faces the cup 10 and/or the injector 11 and/or a volume 13 comprised in the cup 10, whereas the outlet portion 21C is that part of the chamber 21 which faces the cap 30.
  • said first P1 and second P2 horizontal planes are substantially parallel to at least one straight portion 41 of a cover of the cooking top 40.
  • the second horizontal plane P2 in which said apertures 31 lie is positioned substantially in correspondence with the intermediate portion 21B of the Venturi effect chamber 21, so as to allow the chamber 21 to extend above the second horizontal plane P2.
  • Venturi effect chamber 21 extends prevalently above the straight portion 41 of the cover of the cooking top 40.
  • the inlet portion 21A of said chamber 21 lies substantially in a third horizontal plane P3, which in the example of Fig. 2b is positioned above said at least one straight portion 41 of the cover of the cooking top 40.
  • said horizontal plane P3 may be positioned at the same height as the straight portion 41 or under it.
  • said third horizontal plane P3 is located above said at least one straight portion 41 of the cover of the cooking top 40 and under a coupling portion 42 that couples the cooking top 40 to the burner 1.
  • the cooking top comprises a junction portion 43 positioned between said straight portion 41 and said coupling portion 42.
  • said junction portion 43 allows obtaining a coupling portion 42 which is higher than the straight portion 41; it is however clear that the junction portion 43 may be so designed as to obtain a straight portion 41 which is higher than the coupling portion 42.
  • junction portion 43 may even be absent from the cooking top 40 according to the present invention; in such a case, the coupling portion 42 and the straight portion 41 will be positioned at substantially the same height.
  • the inclination of the junction portion 43 is equal or similar to the inclination of the lower portion 30I of the cap 30.
  • the length of said chamber 21, from the inlet portion 21A to the outlet portion 21C is comprised between 20 mm and 40 mm.
  • the length of said chamber 21 is comprised between 24 mm and 34 mm; in a preferred embodiment, the length of said chamber 21, from the inlet portion 21A to the outlet portion 21C, is comprised between 26 mm and 28 mm.
  • the cup 10 is secured to the underside of said coupling portion 42 of the cooking top 40, in particular through known fastening means (typically screws); this allows the cup 10 and the entire burner 1 to be securely fastened to the cooking top 40, without altering the appearance of the cooking appliance.
  • known fastening means typically screws
  • a height H between the outlet portion 21C and said coupling portion 42 of the cooking top 40 is comprised between 15 mm and 30 mm; in particular, the height H between the outlet portion 21C and said coupling portion 42 is comprised between 22 mm and 24 mm; in a preferred embodiment, said height H is approx. 23 mm.
  • a distance D between said outlet portion 21C and the cap 30 is comprised between 2 mm and 4 mm; in particular, the distance D between said outlet portion 21C and the cap 30 is comprised between 2 mm and 3 mm; in a preferred embodiment, said distance D is approx. 2.5 mm.
  • Fig. 2b shows that between the body 20 and the cap 30 a cavity 22 is obtained for letting the gas flow from the outlet portion 21C of the chamber 21 to said plurality of apertures 31.
  • the cavity 22 has a shape that substantially corresponds to that of the cap 30, in that said cavity 22 is obtained in the space between the body 20 and the cap 30.
  • the primary air needed for the operation of the burner 1 is taken from above the cooking top. It flows through the interspace between the body 20 and the coupling portion 42, until it reaches the volume 13 inside the cup 10, where it begins mixing with the gas supplied by the injector 11; said mixing is then completed along the chamber 21.
  • the particular shape and position of the chamber 21, of the cavity 22 and of the cap 30 allow the gas flow to be properly directed towards the plurality of apertures 31 and hence towards a cooking container (not shown in the drawings) placed on the burner 1.
  • the gas is directed into the cavity 22 also by the shape of the cap 30, until it ideally and adequately comes out through the plurality of apertures 31, which are preferably located near the lower portion 30I of said cap 30.
  • the particular "dome-like" shape of the cap 30 allows the flames, which originate from the plurality of apertures 31, to have a substantial vertical component prior to lapping a cooking container positioned on the burner 1. Said component depends on the inclination of the apertures 31 relative to the vertical and on the thickness of the cap 30 (which may be approx. 1).
  • a further advantage of the burner 1 according to the present invention is that the distance D between the outlet portion 21C of the chamber 21 and the cap 30 ensures an optimal circulation of the gas coming from the injector 11 and from said Venturi effect chamber 21.
  • Yet another advantage of the present invention is that the solution adopted for the burner 1 according to the present invention allows locating the flame outlet point at an adequate distance from the cooking containers, without having to use particularly tall grates.

Landscapes

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

Claims (13)

  1. Plaque de cuisson (40) comprenant un brûleur à gaz (1), en particulier pour appareil de cuisson ménager, ledit brûleur (1) comprenant :
    - une coupelle (10) comportant un injecteur (11) pour laisser échapper du gaz venant d'un conduit (12) qui amène du gaz audit brûleur (1) ;
    - un corps (20) associé à ladite coupelle (10) et comprenant une chambre à effet de Venturi (21), en particulier ladite chambre (21) étant positionnée sensiblement coaxialement audit injecteur (11) ;
    - un capuchon (30) associé audit corps (20) de manière à permettre au gaz de sortir à travers une pluralité d'orifices (31),
    ladite chambre à effet de Venturi (21) comprenant une partie d'entrée (21A), une partie intermédiaire (21B) et une partie de sortie (21C), ladite partie de sortie (21C) étant positionnée dans un premier plan horizontal (P1) se trouvant au-dessus d'un deuxième plan horizontal (P2) dans lequel lesdits orifices (31) sont situés,
    lesdits premier (P1) et deuxième (P2) plans horizontaux étant sensiblement parallèles à au moins une partie droite (41) d'un couvercle d'une plaque de cuisson (40) et ladite chambre à effet Venturi (21) s'étendant principalement au-dessus de la partie droite (41) de la plaque de cuisson (40), caractérisée en ce que ladite pluralité d'orifices sont ménagés dans le capuchon (30).
  2. Plaque de cuisson (40) selon la revendication 1, caractérisée en ce que le deuxième plan horizontal (P2) dans lequel lesdits orifices (31) sont situés se trouve sensiblement en correspondance de la partie intermédiaire (21B) de la chambre (21).
  3. Plaque de cuisson (40) selon l'une quelconque des revendications précédentes, caractérisée en ce que la partie d'entrée (21A) de ladite chambre (21) se trouve sensiblement dans un troisième plan horizontal (P3) situé au-dessus de ladite au moins une partie droite (41) du couvercle de la plaque de cuisson (40).
  4. Plaque de cuisson (40) selon la revendication 3, caractérisée en ce que ledit troisième plan horizontal (P3) est situé au-dessus de ladite au moins une partie droite (41) du couvercle de la plaque de cuisson (40) et au-dessous d'une partie d'accouplement (42) qui accouple la plaque de cuisson (40) au brûleur (1).
  5. Plaque de cuisson (40) selon l'une quelconque des revendications précédentes, caractérisée en ce que la longueur de ladite chambre (21) depuis la partie d'entrée (21A) à la partie de sortie (21C) est comprise entre 20 mm et 40 mm, en particulier la longueur de ladite chambre (21) étant comprise entre 24 mm et 34 mm, de préférence ladite longueur étant comprise entre 26 mm et 28 mm.
  6. Plaque de cuisson (40) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une hauteur (H) entre la portion de sortie (21C) et une partie d'accouplement (42) qui accouple la plaque de cuisson (40) au brûleur (1) est comprise entre 15 mm et 30 mm, en particulier ladite hauteur (H) étant comprise entre 22 mm et 24 mm, de préférence, ladite hauteur (H) étant d'environ 23 mm.
  7. Plaque de cuisson (40) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une distance (D) entre ladite partie de sortie (21C) de la chambre (21) et le capuchon (30) est comprise entre 2 mm et 5 mm, en particulier ladite distance (D) étant comprise entre 2 mm et 3 mm, de préférence ladite distance (D) étant d'environ 2,5 mm.
  8. Plaque de cuisson (40) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une cavité (22), pour laisser le gaz s'écouler depuis la partie de sortie (21C) de la chambre (21) à ladite pluralité d'ouvertures (31), est ménagée entre le corps (20) et le capuchon (30).
  9. Plaque de cuisson (40) selon l'une quelconque des revendications précédentes, caractérisée en ce que ledit capuchon (30) a une forme semblable à un dôme, l'inclinaison dudit capuchon (30) à sa partie inférieure (301) étant de préférence égale ou similaire à l'inclinaison d'au moins une partie de jonction (43) de la plaque de cuisson (40).
  10. Plaque de cuisson (40) selon les revendications 8 et 9, caractérisée en ce que la forme de la cavité (22) correspond sensiblement à celle du capuchon (30).
  11. Plaque de cuisson (40) selon la revendication 1, caractérisée en ce que ladite pluralité d'orifices (31) sont ménagées à proximité d'une partie inférieure (301) dudit capuchon (30).
  12. Plaque de cuisson (40) selon la revendication 1, caractérisée en ce que la coupelle (10) est fixée au côté inférieur d'une partie d'accouplement (42) de la plaque de cuisson (40).
  13. Appareil de cuisson ménager comprenant une plaque de cuisson (40) selon l'une quelconque des revendications précédentes 1 à 12.
EP12154772.3A 2011-02-14 2012-02-09 Table de cuisson avec brûleur à gaz Active EP2487413B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12154772T PL2487413T3 (pl) 2011-02-14 2012-02-09 Płyta kuchenna z palnikiem gazowym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000126A ITTO20110126A1 (it) 2011-02-14 2011-02-14 Bruciatore di gas, in particolare per un apparecchio di cottura ad uso domestico

Publications (2)

Publication Number Publication Date
EP2487413A1 EP2487413A1 (fr) 2012-08-15
EP2487413B1 true EP2487413B1 (fr) 2016-11-23

Family

ID=43976456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12154772.3A Active EP2487413B1 (fr) 2011-02-14 2012-02-09 Table de cuisson avec brûleur à gaz

Country Status (3)

Country Link
EP (1) EP2487413B1 (fr)
IT (1) ITTO20110126A1 (fr)
PL (1) PL2487413T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3173697B1 (fr) 2015-11-26 2021-03-31 Electrolux Appliances Aktiebolag Brûleur à gaz et table de cuisson comprenant un tel brûleur

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105662A1 (fr) * 2008-03-25 2009-09-30 Electrolux Home Products Corporation N.V. Plaque de cuisson avec brûleur de plaque de cuisson amélioré

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB876222A (en) * 1956-12-10 1961-08-30 William Bernard Firner Gas burner
FR1313704A (fr) * 1957-10-24 1963-01-04 Liotard Metallurg Brûleur pour appareil de chauffage
GB1579322A (en) * 1977-04-29 1980-11-19 Glynwed Domestic & Heating App Gas burners
GB2100411B (en) * 1981-06-12 1985-01-09 Sabaf Spa Burner for gas cookers and hobs
IT1317784B1 (it) * 2000-06-09 2003-07-15 Whirlpool Co Bruciatore a gas generante una fiamma anulare

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2105662A1 (fr) * 2008-03-25 2009-09-30 Electrolux Home Products Corporation N.V. Plaque de cuisson avec brûleur de plaque de cuisson amélioré

Also Published As

Publication number Publication date
EP2487413A1 (fr) 2012-08-15
ITTO20110126A1 (it) 2012-08-15
PL2487413T3 (pl) 2017-08-31

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