EP2118571A2 - Brûleur modulaire à alimentation optimisée pour un foyer de cuisson - Google Patents

Brûleur modulaire à alimentation optimisée pour un foyer de cuisson

Info

Publication number
EP2118571A2
EP2118571A2 EP08719367A EP08719367A EP2118571A2 EP 2118571 A2 EP2118571 A2 EP 2118571A2 EP 08719367 A EP08719367 A EP 08719367A EP 08719367 A EP08719367 A EP 08719367A EP 2118571 A2 EP2118571 A2 EP 2118571A2
Authority
EP
European Patent Office
Prior art keywords
burner
frame
modular
distribution chamber
burner according
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
EP08719367A
Other languages
German (de)
English (en)
Other versions
EP2118571B1 (fr
Inventor
Enzo Inzaghi
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.)
Steel Time SpA
Original Assignee
Steel Time 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.)
Filing date
Publication date
Application filed by Steel Time SpA filed Critical Steel Time SpA
Publication of EP2118571A2 publication Critical patent/EP2118571A2/fr
Application granted granted Critical
Publication of EP2118571B1 publication Critical patent/EP2118571B1/fr
Not-in-force 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
    • F23D14/06—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

Definitions

  • the present invention regards a modular burner with an optimised supply for a hob of a cooking appliance.
  • Hobs for cookers bearing a plurality of burners arranged at the centre of hobs and provided with underlying holders adapted to collect the drippings and food remnants overflowing from the cooking containers, have been known over the years .
  • Such burners are usually made circular-shaped and they are provided with a plurality of holes or grooves around the circumference for releasing gas, flame spreaders, through which the flame is distributed to heat the bottom of the container.
  • both the hob and holder have a central opening of relatively big dimensions, passed through by the burner, providing in such zone an expansion vessel which is in turn covered by a lid provided with flame spreader grooves .
  • Hobs of the abovementioned type are already outdated, given that recessed hobs and generally hobs occupying less vertical space are used in modern cookers . Therefore, burners provided with supply nozzles and small mixing chambers having throttles to exploit the Venturi principle to suction primary air depending on the conditions both above or beneath the hob and to mix it with the supplied gas .
  • Schematic examples of such embodiments according to the known technique are indicated in figures 1 and 2, where the same elements are indicated with the same references .
  • FIG 1 schematically illustrates a burner 1 with primary air suction Al beneath the hob, while the burner 1', illustrated in figure 2 provides for the suction of the primary air above the hob.
  • Both burners 1, 1' according to the known technique comprise a body 2, a head 3, a nozzle 4 for gas supply G, a throttle or a horizontal Venturi pipe facing the nozzle for suctioning the primary air Al.
  • a mixing chamber 6 having the flame spreaders 7 from which the mixture is released to be ignited and to mix with the secondary air A2.
  • Embodiments according the known technique are intended for burners with one or more flame crowns (usually circular) supplied by a single nozzle.
  • a drawback of such burners lies in the fact that regardless the presence of the horizontal Venturi pipe, suctioning and the subsequent mixing of primary air is limited, by the configuration of the burner, to a single pipe and to the corresponding mixing chamber hence the combustion cannot be complete and the burner cannot be efficient.
  • the general objective of the present invention is that of overcoming the abovementioned drawbacks of the known art providing a modular burner with an optimised supply for a hob.
  • a particular objective of the present invention is that of providing a modular burner of an easily variable power depending on the use conditions .
  • a modular burner with an optimised hob was conceived, having the characteristics outlined in the attached claims. Structural and functional characteristics of the present invention as well as its advantages with respect to the known art shall be clearer and more evident from the observation of the following description, with reference to the attached drawings, which show a modular burner made according to the innovative principles of the invention itself.
  • FIGS. 3a and 3b are perspective views, respectively- seen from the top and from below, of the burner according to the invention.
  • FIG. 3c is a raised sectional view of a portion of a burner of figures 3a, 3b;
  • FIGS. 4a and 4b are perspective views respectively, seen from the top and from below, of a detail of the burner of figures 3a, 3b according to the invention
  • FIGS. 4c-4e are respectively a plan view, alongside sectional front and side views of a detail of the burner of figures 4a, 4b according to the invention;
  • FIG. 5 is a raised sectional view of the burner of figures 3a and 3b;
  • FIG. 6 is a perspective exploded view of the base of the burner according to the invention.
  • FIG. 7 and 8 show a burner base according to the invention in a perspective view, respectively seen from above and below;
  • Figure 9 is an exploded perspective view of the burner according to the invention.
  • FIGS 11a and lib are perspective views, respectively seen from above and below, of a burner according to a different embodiment of the invention.
  • Figure lie is a raised sectional view of a portion of the burner of figures 11a, lib;
  • Figures 12a and 12b are perspective views, respectively seen from above and below, of a detail of the burner of figures 11a, lib;
  • Figures 12c-12e are respectively a plan view, alongside sectional front and side views of a detail of the burner of figures 12a, 12b;
  • Figures 13a and 13b are perspective views, respectively seen from above and below, of a burner according to a different embodiment of the invention; - Figure 13c is a raised sectional view of a portion of the burner of figures 13a, 13b;
  • Figures 14a and 14b are perspective views, respectively seen from above and below, of a detail of the burner of figures 13a, 13b; - Figures 14c-14e are respectively a plan view, alongside sectional front and side views of a detail of the burner of figures 14a, 14b;
  • Figures 15a and 15b are perspective views, respectively seen from above and below, of a burner according to a different embodiment of the invention,-
  • FIG. 15c is a raised sectional view of a portion of the burner of figures 15a, 15b;
  • FIG. 16 shows a plan view of the burner according to figures 15a, 15b;
  • - Figures 17 and 18a, 18b show a perspective view of the same number of details of the burner according to figures 15a, 15b;
  • - Figure 19 shows an exploded perspective view of the burner according to figures 15a, 15b;
  • Figures 20a and 20b show a perspective view, respectively seen from above and below, of the base of the burner according to figures 15a, 15b.
  • a modular burner 10 intended for a hob of a cooking appliance comprises a base body 20 in turn comprising a frame 22 exemplified in a non- limiting manner as quadrangular-shaped, a burner base 21 centrally mountable onto the frame 22, at least one lid, preferably an external lid 11 and an internal lid 12 separated and respectively intended to close the frame 22 and the burner base 21 on the upper part.
  • the frame comprises four arms of which one to three of the support arms 23 and at least one burner arm 24 extend radially towards the centre of the same.
  • the burner arm 24 is thus U-shaped and it is connected to a channel 29' connected to a longitudinal recess 73 provided on the side 22' of the frame 22.
  • the recess 73 closed on the upper part by the lid 11, is in turn connected to a distribution chamber 60 for supplying and distributing gas to the entire burner base 21, through at least one opening 71 provided with a throttle 72 passing through the bottom of the recess itself. Furthermore, the burner arm 24 has flame spreader grooves 30 made along the edge of the flaps 35 of the
  • each support arm 23 Provided at the end facing inwards the frame of each support arm 23 is a seat 31 adapted to accommodate the corresponding ends of the burning base 21 and allow its fastening.
  • the burner arm 24 is provided with a lower bracket 38 adapted to be connected to a corresponding lower abutment 37 extending from the burner base 21.
  • the burner base 21 is provided with radial channels 27 configured in such a manner to correspond to the arms 23,24 in such a manner to be supported by the latter and allow the circulation of the gas provided by the channel 29' .
  • the burner base 21 further comprises a crown 26 provided with a central opening 28 for aeration, with channels 27 extending radially from said crown.
  • Three of the channels 27 are each provided at their open ends with a bracket 32 intended for one of the three arms 23 .
  • the fourth channel 27 is preset to be connected to the burner arm 24 and provides a lower abutment 37 for this purpose .
  • Both the crown 26 and the channels 27 are U-shaped with flaps 35 and a bottom 36.
  • the three channels 27 intended for connection with the three support arms 23 are further provided with a transverse septum 34 which closes the channel at its end to be inserted into the seat 31.
  • the fourth channel 27 intended to be connected with the burner arm 24 is U-shaped and provided with an open pipe 29, to be connected to the channel 29' to allow gas delivery to the burner. Provided along the edges of the flaps 35 are flame spreader grooves 30.
  • lids 11 and 12 seal fixed by means of screws.
  • first and second flaps 13 and 13' are provided on the upper part of such lids 11,12 for holding the cooking containers at a raised position with respect to the burner, the first flaps 13 are provided for extending from the external lid 11 while the second flaps extend from the internal lid 12 for holding smaller cooking containers.
  • the external lid 11 is thus provided corresponding to the frame 22.
  • the internal lid 12 is made corresponding to the burner base 21, in particular it comprises four plates 17 projecting radially from a central crown 16 configured in a manner such to correspond respectively to the radial channels 27 and to the crown 26 of the burner base.
  • the internal lid 12 is further provided with an opening 18 corresponding to the aeration opening 28 of the burner base .
  • a holder 78 for collecting the drippings provided with a perimeter fixing edge 78', corresponding to the shape of the frame 22 and provided with an opening 79 extended along the side 22' of the frame from which the burner arm 24 extends.
  • the quadrangular shape of the plate preferably squared, allows manufacturing modular cookers made up of a limited number of different components, guaranteeing considerable saving in terms of production costs.
  • the distribution chamber 60 is made oblong-shaped in such a manner to substantially extend along the entire side 22' of the frame 22 from which the burner arm 24 extends centrally.
  • the distribution chamber 60 thus comprises a tray 64 contoured by a perimeter edge 65 through which it is fixed beneath the frame 22 with the perimeter edge 78' of the holder 78 interposed at the opening 79 of such perimeter edge 78' .
  • the distribution chamber 60 is supplied through a main gas pipe 61 ending in at least one coupling 62 which is inserted into the tray 64.
  • the distribution chamber is supplied at three separate and equispaced supply positions, provided by means of inlet pipes 67 connected to three couplings 62 to each one of which a branching of the main gas pipe 61 is connected.
  • the inlet pipes 67 are provided inside the lugs 63 provided with reinforcement ribs 69 connected to the external of the distribution chamber 60 beneath the tray 64 and fixed to the perimeter edge 65 of the latter.
  • each inlet pipe is perpendicularly connected to a channel 68 which passes through the bottom of the tray 64 and it is preset to accommodate a nozzle 70.
  • a nozzle 70 faces the bottom of the frame 22 arranged over the tray 64 directly beneath the opening 71.
  • the opening 71 and the related throttle 72 ending up in the recess 73 in practice provide a Venturi pipe.
  • the side 22' is provided on the lower part of the frame, along the entire length of the sides of the primary air delivery fittings 75 to allow suctioning through the depression caused by the gas emitted by the nozzle which passes through the Venturi pipe provided by the opening 71 with the related throttle 72 which ends up in the recess 73.
  • Such three nozzled distribution chamber is intended for high power burners to exploit the gas/air mixture to the maximum.
  • the burner according to the invention is susceptible to advantageous construction variants .
  • the distribution chamber 160 is provided with a single central nozzle 70 supplied by the pipe 61 with a relative coupling 62 of the related inlet pipe 67.
  • a single Venturi pipe defined by the opening 71, throttle 72 ending up in the recess 73 , the other characteristics remaining substantially identical to the three nozzled embodiment .
  • a distribution chamber 260 has two nozzles 70 supplied by the pipe 61 with the related two fittings 62 each regarding the related inlet pipe 67.
  • Venturi pipes each defined by the opening 71, throttle 72 ending up in the recess 73, the other characteristics remaining substantially identical to the three nozzled embodiment .
  • such embodiment is intended for medium power flames.
  • FIG. 15a-2Ob Another different embodiment of the invention is illustrated in figures 15a-2Ob and it is intended for high power flames.
  • a first distribution chamber 260 provides for two nozzles and a second distribution chamber 60 provides for three nozzles, with the related characteristics described previously.
  • the frame 22 is consequently provided with two sides 22' departing from which are two burner arms 24 for a more substantial supply of air/gas mixture hence the square-shaped frame is provided with two support arms 23. Consequently, the perimeter edge 78' of the holder 78 is correspondingly provided with two openings 79 to allow the passage of gas from the two distribution chambers .
  • the double burner 100 thus comprises the base body 20 which in turn comprises the frame 22 intended to surround a double crown burner, provided with a burner base 121 with an external crown 122 and an internal crown 123 connected.
  • a lid 111 of the double crown burner in turn provided with an external crown 112 and an internal crown 113.
  • the two burner arms 24 of the frame 22 supply a first channel 127' and a second channel 127'' of the burner base .
  • the first channel 127' connected to the three nozzled distribution chamber 60, feeds the external crown while the second channel 127'' connected to the two nozzled distribution chamber 260 feeds the internal crown.
  • flow separator elements 128 Provided between the two crowns are flow separator elements 128 to prevent preferential paths of the flows .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)

Abstract

La présente invention concerne un brûleur modulaire pour un foyer de caisson d'un appareil de cuisson, caractérisé en ce qu'il comprend un corps de base (20) comprenant à son tour un cadre (22), une base de brûleur (21, 121) pouvant être montée de manière centrale sur le cadre (22), au moins un couvercle (11, 12, 111) destiné à fermer sur la partie supérieure le cadre (22) et la base de brûleur (21, 121) et au moins une chambre de distribution (60, 160, 260) fixée sous un côté (22') du cadre (22), ladite chambre de distribution étant pourvue d'au moins une buse (70) d'amenée de gaz et connectée à au moins un tuyau Venturi (71, 72, 73) et à des entrées d'aspiration d'air principales (75) de manière à recevoir l'amenée de gaz et à la distribuer au brûleur modulaire.
EP08719367A 2007-03-07 2008-03-06 Brûleur modulaire à alimentation optimisée pour un foyer de cuisson Not-in-force EP2118571B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000451A ITMI20070451A1 (it) 2007-03-07 2007-03-07 Bruciatore modulare ad alimentazione ottimizzata per pistra di cottura
PCT/IB2008/000717 WO2008107794A2 (fr) 2007-03-07 2008-03-06 Brûleur modulaire à alimentation optimisée pour un foyer de cuisson

Publications (2)

Publication Number Publication Date
EP2118571A2 true EP2118571A2 (fr) 2009-11-18
EP2118571B1 EP2118571B1 (fr) 2012-05-16

Family

ID=39738875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08719367A Not-in-force EP2118571B1 (fr) 2007-03-07 2008-03-06 Brûleur modulaire à alimentation optimisée pour un foyer de cuisson

Country Status (6)

Country Link
US (1) US20100089384A1 (fr)
EP (1) EP2118571B1 (fr)
CN (1) CN101663540B (fr)
IT (1) ITMI20070451A1 (fr)
RU (1) RU2459151C2 (fr)
WO (1) WO2008107794A2 (fr)

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KR100936155B1 (ko) * 2007-12-05 2010-01-12 엘지전자 주식회사 노즐어셈블리 및 이를 포함하는 조리기기
CN201582887U (zh) * 2009-11-23 2010-09-15 惠而浦产品研发（深圳）有限公司 火盖及灶头
WO2012085610A1 (fr) * 2010-12-22 2012-06-28 Sabaf S.P.A. Brûleur à gaz
ITTO20110078U1 (it) * 2011-07-29 2013-01-30 Indesit Co Spa Bruciatore di gas, in particolare per un apparecchio di cottura per alimenti
EP3023701B1 (fr) * 2014-10-21 2023-06-07 BSH Electrodomésticos España, S.A. Plaque de cuisson
CN105387463B (zh) * 2015-12-02 2019-04-12 芜湖美的厨卫电器制造有限公司 燃烧器和具有其的热水器
US10401034B2 (en) * 2016-03-22 2019-09-03 Haier Us Appliance Solutions, Inc. Illuminated cooktop burner appliance
US10330326B2 (en) * 2016-11-21 2019-06-25 Haier Us Appliance Solutions, Inc. Gas burner assembly for a cooktop appliance
US10641494B2 (en) * 2016-11-22 2020-05-05 Haier Us Appliance Solutions, Inc. Cooktop appliance with a gas burner assembly
US11085645B2 (en) * 2018-05-31 2021-08-10 Haier Us Appliance Solutions, Inc. Eductor for a gas cooktop appliance
CN112236619B (zh) * 2018-06-25 2023-10-03 伊莱克斯家用电器股份公司 燃气燃烧器组件和包括至少一个燃气燃烧器组件的燃气烹饪器具

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Also Published As

Publication number Publication date
ITMI20070451A1 (it) 2008-09-08
RU2459151C2 (ru) 2012-08-20
WO2008107794A2 (fr) 2008-09-12
WO2008107794A3 (fr) 2009-09-24
CN101663540B (zh) 2012-02-08
US20100089384A1 (en) 2010-04-15
CN101663540A (zh) 2010-03-03
EP2118571B1 (fr) 2012-05-16
RU2009132880A (ru) 2011-04-20

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