EP1255081B1 - Atmosphärischer Strahlungsgasbrenner - Google Patents

Atmosphärischer Strahlungsgasbrenner Download PDF

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Publication number
EP1255081B1
EP1255081B1 EP02007379A EP02007379A EP1255081B1 EP 1255081 B1 EP1255081 B1 EP 1255081B1 EP 02007379 A EP02007379 A EP 02007379A EP 02007379 A EP02007379 A EP 02007379A EP 1255081 B1 EP1255081 B1 EP 1255081B1
Authority
EP
European Patent Office
Prior art keywords
burner
chamber
chambers
gas
porous ceramic
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 - Fee Related
Application number
EP02007379A
Other languages
English (en)
French (fr)
Other versions
EP1255081A2 (de
EP1255081A3 (de
Inventor
Alessandro Distaso
Daniele Franchi
Davide Barrero
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 Corp
Original Assignee
Whirlpool Corp
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 Whirlpool Corp filed Critical Whirlpool Corp
Publication of EP1255081A2 publication Critical patent/EP1255081A2/de
Publication of EP1255081A3 publication Critical patent/EP1255081A3/de
Application granted granted Critical
Publication of EP1255081B1 publication Critical patent/EP1255081B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F24C3/04—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate
    • F24C3/06—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate without any visible flame
    • F24C3/067—Ranges

Definitions

  • the present invention relates to an atmospheric gas burner of radiant type in accordance with the introduction to the accompanying claim 1 and known from EP-A-109 1176 .
  • Atmospheric gas burners of radiant type comprising a porous refractory ceramic element (with or without catalyst) closing a chamber into which the air/gas mixture is fed through an injector, in which the gas (the variable throughput of which is controlled by a valve operated by a knob) acts as the vector fluid, i.e. for drawing-in the combustion air.
  • the burner conceived in this manner is located at a distance below a profiled or non-profiled glass ceramic plate acting as a heat receiver.
  • An example of a burner of thus type is described in a previous utility model in the name of the same applicant.
  • the burner of the prior art is not always able to provide the required performance. This is the case for example when saucepans of considerably different diameter or perimeter are required to be positioned on one and the same burner (of given dimensions). If the burner is sized for the smaller saucepan, cooking requires a much longer time if the larger saucepan is used instead (even if the burner is used at its maximum thermal power). If the burner is sized for the larger saucepan, using the smaller saucepan results in considerable energy wastage even if the burner is operated at low power.
  • An example of this situation is that of a fish-kettle (representing the larger pan) and a frying pan occupying a surface area of one half that of the fish-kettle.
  • the object of the present invention is to provide a burner able to satisfy different thermal requirements determined by the bearing dimensions of the cooking utensil, in a simple and economical manner.
  • the cooking appliance represented presents three cooking positions, which can be different or equal to each other and are indicated by 1. It comprises (see Figure 3 in particular) a glass ceramic flat element or plate 2 on which the cooking utensil rests.
  • the plate 2 is supported by a metal spacer means 3 in front of a burner indicated overall by 4.
  • the burner comprises a discoidal central part 5 of porous ceramic material and a circular annular part 6 also of porous ceramic material, having an inner diameter substantially equal to the outer diameter of the discoidal central part 5.
  • the two parts 5 and 6 can be a single disc, i.e. a single part.
  • a metal support body 7 is provided presenting an inner cylindrical wall 9 and a common base wall 10.
  • the discoidal central part 5 (or the corresponding region in the one-piece arrangement) defines, with the inner cylindrical wall 9 and the base wall 10, a cylindrical chamber 11.
  • the annular part 6 (or the corresponding region of the one-piece arrangement) defines, together with the inner cylindrical wall 9, the outer cylindrical wall 8 and the base wall 10, an annular chamber 12.
  • the inner cylindrical chamber 11 is connected to a conduit 13, which passes through the annular chamber 12 and carries a conventional injector 14 for the gas which, by the venturi effect, draws the combustion air through intake apertures 15 present in the conduit 13.
  • a similar injector 16 present in a conduit 17 provided with combustion air intake apertures.
  • the injectors of the two chambers are connected by pipes 18, 19 to a two-exit cock 20 of known type connected to the gas source and controlled by one and the same knob 21 to feed gas to the inner chamber 11 from its minimum to its maximum value, and then, by rotating the said knob, to feed gas to the annular chamber 12, for example from its maximum to its minimum value, while feeding gas at maximum value to the inner chamber 11.
  • the cock 20 is opened within a first adjustment range by which gas is controlledly fed to only that chamber. Flameless combustion of the air/gas mixture passing through the porous ceramic mass 5 covering the chamber 11 is triggered in known traditional manner.
  • the air/gas mixture is made to also controlledly enter the outer annular chamber 12, and is ignited by passage through the porous ceramic mass 6 covering the chamber 12, while the chamber 11 is fed at its maximum value, with the result that the entire porous mass (disc 5 plus ring 6) intervenes in heating the glass ceramic plate 2.
  • FIG. 4 The arrangement of Figure 4 , in which parts equal or corresponding to those of Figures 1-3 are indicated by the same reference numerals plus the letter A, comprises two partly complementary adjacent chambers 11A and 12A, one cylindrical and the other similar to an annular sector, closed respectively by a discoidal part 5A of porous ceramic material and by a part 6A of shape matching that of the underlying chamber 12A. Again in this case gas flows to the two chambers via a cock controlled by the same knob.
  • the two parts 5A and 6A can again in this case represent two regions of one and the same piece.
  • the heat receiver represented by glass ceramic discs in the embodiment of Figures 1-3 , is in this case shaped relatively.
  • the heat receiver can be a single plate, for example rectangular, common to all the burners used, although the fact of having several heat receivers, each associated with its relative burner, enables the thermal efficiency to be increased by virtue of direct heat transfer between the hot combustion gases and the walls of the cooking utensil.
  • Further advantages of the invention include: a) a wider range of utilization of radiant burners, the usual main drawback of which is that they operate correctly only within a narrow range of gas throughput, and b) enabling the number of cooking points 1 to be reduced when these burners are used in cooking hobs.
  • the invention also extends to embodiments in which the radiant burner comprises three or more chambers, In that case, more than one electronically controlled valve or cock can be used.

Claims (5)

  1. Atmosphärischer Strahlbrenner, umfassend ein poröses Keramikelement, das zum Schließen einer ersten Kammer (11, 11A), in die ein Gas/Luftgemisch eingespeist wird, und zumindest einer zur ersten benachbart gelegenen zweiten Kammer (12, 12A) positioniert ist, wobei beide Kammern durch das poröse Keramikelement (5, 6, 5A, 6A) verschlossen werden,
    dadurch gekennzeichnet, dass
    die Gaseinspeisung zu den zwei Kammern über ein durch einen einzelnen Knopf (21) gesteuertes Ventilmittel (20) statt findet, bei dem das Ventilelement (20) während eines ersten Teils des Weges seines einzelnen Knopfes (21) die Gaseinspeisung zur ersten Kammer von einem Minimal- zu einem Maximalwert steuert, wohingegen es während eines zweiten Teils des Weges die Gaseinspeisung zur zweiten Kammer steuert und eine Einspeisung zur ersten Kammer bei einem Maximalwert gestattet.
  2. Atmosphärischer Strahlbrenner gemäß Anspruch 1, bei dem das poröse Keramikelement den zwei Kammern (11, 11A und 12, 12A) gemein ist.
  3. Atmosphärischer Strahlbrenner gemäß Anspruch 1, bei dem das poröse Keramikelement (5, 5A; 6, 6A) für jede der Kammern (11, 11A und 12, 12A) separat ist.
  4. Atmosphärischer Strahlbrenner gemäß einem der vorangegangenen Ansprüche, bei dem die zwei Kammern (11, 12) konzentrisch sind.
  5. Atmosphärischer Strahlbrenner gemäß einem der Ansprüche 1 bis 4, bei dem die zwei Kammern (11A, 12A) nebeneinander oder benachbart sind.
EP02007379A 2001-05-03 2002-04-09 Atmosphärischer Strahlungsgasbrenner Expired - Fee Related EP1255081B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001MI000247U ITMI20010247U1 (it) 2001-05-03 2001-05-03 Bruciatore atmosferico a gas di tipo radiante
ITMI20010247U 2001-05-03

Publications (3)

Publication Number Publication Date
EP1255081A2 EP1255081A2 (de) 2002-11-06
EP1255081A3 EP1255081A3 (de) 2006-11-22
EP1255081B1 true EP1255081B1 (de) 2008-11-19

Family

ID=11446791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007379A Expired - Fee Related EP1255081B1 (de) 2001-05-03 2002-04-09 Atmosphärischer Strahlungsgasbrenner

Country Status (5)

Country Link
US (1) US20020164553A1 (de)
EP (1) EP1255081B1 (de)
DE (1) DE60229897D1 (de)
ES (1) ES2317960T3 (de)
IT (1) ITMI20010247U1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7690374B2 (en) * 2002-11-29 2010-04-06 Lg Electronics Inc. Gas radiation oven range
EP1738110B1 (de) * 2004-04-06 2013-11-06 Tiax Llc Brennervorrichtung
ITTO20050685A1 (it) * 2005-09-30 2007-04-01 Indesit Co Spa Piano di cottura con bruciatore a gas comprendente un elemento semipermeabile
US7721726B2 (en) * 2006-01-03 2010-05-25 Lg Electronics Inc. Gas radiation burner
KR101064050B1 (ko) * 2008-07-29 2011-09-08 엘지전자 주식회사 버너어셈블리 및 이를 포함하는 조리기기
US9557063B2 (en) * 2013-11-22 2017-01-31 Haier Us Appliance Solutions, Inc. Burner assembly for cooktop appliance and method for operating same
KR101617499B1 (ko) 2013-12-26 2016-05-02 엘지전자 주식회사 조리기기 및 버너 유닛
KR101573989B1 (ko) * 2013-12-26 2015-12-02 엘지전자 주식회사 조리기기 및 버너 유닛
CN109058991A (zh) * 2018-08-15 2018-12-21 中山市新帝电器制造有限公司 一种红外燃烧器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2018441A6 (es) * 1989-12-11 1991-04-01 Catalana Gas Sa Perfeccionamientos en quemadores para encimeras vitroceramicas a gas.
IT1250610B (it) * 1991-07-01 1995-04-21 Smeg Spa Bruciatori a gas nell'infrarosso per piani di cottura in vetroceramica
EP1091176A1 (de) * 1999-10-05 2001-04-11 A.C. di Amati Carlo & C.S.a.s. Brenneinrichtung für Gasherdkochmulden

Also Published As

Publication number Publication date
ITMI20010247U1 (it) 2002-11-04
EP1255081A2 (de) 2002-11-06
DE60229897D1 (de) 2009-01-02
US20020164553A1 (en) 2002-11-07
EP1255081A3 (de) 2006-11-22
ITMI20010247V0 (it) 2001-05-03
ES2317960T3 (es) 2009-05-01

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