EP0221686A1 - Kochgerät - Google Patents

Kochgerät Download PDF

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Publication number
EP0221686A1
EP0221686A1 EP86307753A EP86307753A EP0221686A1 EP 0221686 A1 EP0221686 A1 EP 0221686A1 EP 86307753 A EP86307753 A EP 86307753A EP 86307753 A EP86307753 A EP 86307753A EP 0221686 A1 EP0221686 A1 EP 0221686A1
Authority
EP
European Patent Office
Prior art keywords
plate
intermediate member
infra
cooking apparatus
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.)
Withdrawn
Application number
EP86307753A
Other languages
English (en)
French (fr)
Inventor
Peter William Crosley
Graham Howlett Goodchild
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.)
Thorn EMI Appliances Ltd
Original Assignee
Thorn EMI Appliances Ltd
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 Thorn EMI Appliances Ltd filed Critical Thorn EMI Appliances Ltd
Publication of EP0221686A1 publication Critical patent/EP0221686A1/de
Withdrawn legal-status Critical Current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
    • F24C3/047—Ranges
    • 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

  • This invention relates to cooking apparatus and in particular, though not exclusively, to a cooking hob having a smooth, glass ceramic surface as a cook-top.
  • Cooking hobs of this type are advantageous in that the smooth, glass ceramic surface enables the hob to be easily cleaned following, for example, spillage from cooking utensils placed thereon.
  • Known glass ceramic cooking hobs generally incorporate conventional electrical resistance heating elements, each forming a hotplate area on the cook-top.
  • the cooking hob may be provided with a number of tungsten-halogen tubular lamps forming each hotplate area, as shown in UK Patent Application No. 2132060A, which has been found to achieve a more rapid thermal response than the cooking hobs incorporating conventional heating elements.
  • cooking apparatus including an upper plate for supporting a cooking utensil, a gas burner assembly mounted beneath said plate, and an intermediate member located between said burner assembly and the underside of said plate, characterised in that said plate is formed from a material predominantly transmissive of infra-red radiation of a predetermined range of wavelengths, and said intermediate member is formed from a material predominantly emissive of infra-red radiation of wavelengths within said range, when heated by said gas burner assembly, for transmission through said plate.
  • the upper plate is preferably formed from an infra red transmissive glass ceramic material, such as CORNING Black Cooktop 9632, whilst the intermediate member may be formed from a thin foil, a wire mesh, a wafer or a coating sprayed on a substrate of a suitable material with different emissivity characteristics to that of the coating, and preferably the intermediate member has a surface area commensurate with a desired hotplate area of the upper plate.
  • an infra red transmissive glass ceramic material such as CORNING Black Cooktop 9632
  • the intermediate member may be formed from a thin foil, a wire mesh, a wafer or a coating sprayed on a substrate of a suitable material with different emissivity characteristics to that of the coating, and preferably the intermediate member has a surface area commensurate with a desired hotplate area of the upper plate.
  • the cooking hob preferably comprises four respective intermediate members, each associated with a separate hotplate area and each having a gas burner assembly mounted therebeneath.
  • a cooking bob includes an upper plate 1 for supporting cooking utensils (not shown), such as saucepans, and a gas burner 2 mounted beneath the plate 1, so that, when lit, flames from the gas burner 2 are directed upwardly towards the plate 1.
  • An intermediate member 3 is located between the plate 1 and the gas burner 2 so that the flames from the burner heat the intermediate member 3.
  • the outlet of the gas burner 2 may consist of a substantial number of small holes, which produce a mass of small flames to heat the intermediate member 3, which may achieve more efficient heating than a single larger flame.
  • a fully or partially pre-mixed air/gas mixture is introduced for ignition into the burner 2 via gas inlet 4 and a suitable ducting arrangement (not shown) is provided to exhaust combustion products from within the cooking bob.
  • the upper plate 1 is formed from a material predominantly transmissive of infra-red radiation of a predetermined range of wavelengths and the intermediate member 3 is formed from a material, which, when heated, predominantly emits infra-red radiation of a wavelength within the range, so that the emitted infra-red radiation can be transmitted directly through the plate 1.
  • Figure 2 shows a transmittance characteristic curve for CORNING Black Cooktop 9632, a glass ceramic material, which, as can be seen from Figure 2, predominantly transmits visible and infra-red radiation within a wavelength range of approximatey 0.6 ⁇ m to 2.9ym.
  • a material can be used for the intermediate member, which, when heated to approx 1200-1400 C emits infra-red radiation at wavelengths within this range and may typically have a threshold wavelength of approximately 3 ⁇ m, above which it is substantially non-emissive.
  • the intermediate member 3 may be made into any desirable shape or configuration, such as a thin foil, a wafer or a wire mesh, or in the form of a coating on a substrate of a different suitable material having different emittance characteristics to that of the coating. It also preferably has a surface area commensurate with that of a hotplate area on the upper plate 1.
  • FIG. 3 Such an arrangement is shown in Figure 3, wherein four intermediate members 5,6,7,8 are mounted between four gas burners 9,10,11,12 and a continuous upper plate 13, the surface area of each intermediate member 5,6,7,8 being commensurate with that of each of four hotplate areas 14,15,16,17 formed on the plate 13.
  • the member 3 can be electrically heated, in addition, or as an alternative, to being heated by the gas burner 2, by passing an electric current through it.
  • the intermediate member 3 may be made from any suitable material, as long as the transmittance characteristics of the selected material of the plate 1 are sufficiently matched to the emittance characteristics of the material selected for the member 3.
  • Suitable materials for this intermediate member may include a refractory or ceramic material, such as ziroonia or molybdenum disilicide, or a metal, such as tungsten, or an alloy used for electrical heating elements, such as KANTHAL 'DSD', 'A' or ' A 1.
  • the alloys have been found to be particularly suitable as materials for the intermediate member 3, because, unlike some other metals such as tungsten, the alloys do not deteriorate rapidly at high temperatures.
  • the intermediate member 3 and the gas burner 2 may be mounted beneath the plate 1 by any suitable supporting arrangement, with the air/gas inlet 4 and the ducting arrangement for the exhaustion of combustion products being arranged accordingly.
  • the material of the plate 1 is preferably tinted to act as a filter of a certain amount of visible radiation, which would otherwise have been transmissable through the plate 1.
  • the present invention therefore provides an efficient, gas-fuelled, glass ceramic cooking hob incorporating an intermediate member of a material, which, in the preferred embodiment, only requires heating to a temperature of 1200-1400 C to emit infra-red radiation of wavelengths directly transmissable through the upper plate, in comparision with a temperature commensurate with the maximum combustion temperature of domestic gas in air, i.e. about i860 C, which would be necessary without matching of the transmittance and emittance characteristics of the respective materials of the upper plate and the intermediate member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Resistance Heating (AREA)
  • Vending Machines For Individual Products (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Baking, Grill, Roasting (AREA)
EP86307753A 1985-10-22 1986-10-08 Kochgerät Withdrawn EP0221686A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8526068 1985-10-22
GB858526068A GB8526068D0 (en) 1985-10-22 1985-10-22 Cooking apparatus

Publications (1)

Publication Number Publication Date
EP0221686A1 true EP0221686A1 (de) 1987-05-13

Family

ID=10587087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86307753A Withdrawn EP0221686A1 (de) 1985-10-22 1986-10-08 Kochgerät

Country Status (9)

Country Link
EP (1) EP0221686A1 (de)
JP (1) JPS62175528A (de)
AU (1) AU6387686A (de)
DK (1) DK499786A (de)
FI (1) FI864284A (de)
GB (1) GB8526068D0 (de)
NO (1) NO864068L (de)
NZ (1) NZ218017A (de)
ZA (1) ZA867838B (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2120843A1 (es) * 1995-02-27 1998-11-01 Toyotomi Kogyo Co Ltd Quemador de cocina.
WO2000001286A1 (en) * 1998-07-02 2000-01-13 Best Willie H Heating assembly and cooking apparatus
WO2000040912A2 (en) * 1999-01-08 2000-07-13 Quadlux, Inc. Scanning lightwave oven and method of operating the same
DE10222450A1 (de) * 2002-02-12 2003-08-21 Voith Paper Patent Gmbh Als Flächenstrahler ausgebildeter Infrarot-Strahler
US7038227B2 (en) 2002-02-12 2006-05-02 Voith Paper Patent Gmbh Infrared emitter embodied as a planar emitter
WO2006080949A3 (en) * 2004-06-23 2007-03-08 Willie H Best Radiant burner
US8074634B2 (en) 2006-09-26 2011-12-13 Char-Broil, Llc Cooking apparatus with concave emitter
US8227728B2 (en) 2006-11-10 2012-07-24 Char-Broil, Llc Radiant tube broiler
US8770181B2 (en) 2006-09-26 2014-07-08 Char-Broil, Llc Methods and apparatus for generating infrared radiation from convective products of combustion
US8776775B2 (en) 2009-06-29 2014-07-15 W.C. Bradley Co. Single cavity radiant cooking apparatus
US9510604B2 (en) 2013-06-17 2016-12-06 W.C. Bradley Co. Outdoor cooker and smoker, and fuel combustor therefor
US9668613B2 (en) 2013-06-17 2017-06-06 W.C. Bradley Co. High efficiency apparatus and method for cooking, heating and drying
US9709281B2 (en) 2014-03-31 2017-07-18 W.C. Bradley Co. High efficiency side burner and outdoor cooker
US10004241B2 (en) 2012-11-15 2018-06-26 W.C. Bradley Co. Electric roaster and smoker
US10426176B2 (en) 2015-03-25 2019-10-01 W.C. Bradley Co. Vertical electric cooker and smoker and smoke box
EP3617592A1 (de) * 2018-08-31 2020-03-04 Grand Mate Co., Ltd. Verbrennungsvorrichtung
US11015803B2 (en) 2018-11-05 2021-05-25 Grand Mate Co., Ltd. Combustion device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH460287A (de) * 1966-10-17 1968-07-31 Hayashi Kanekichi Gas-Infrarot-Brenner
FR2087931A5 (de) * 1970-03-30 1971-12-31 Columbia Gas System
DE2233369A1 (de) * 1972-07-07 1974-01-24 Cramer Geb Gasbeheiztes grillgeraet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH460287A (de) * 1966-10-17 1968-07-31 Hayashi Kanekichi Gas-Infrarot-Brenner
FR2087931A5 (de) * 1970-03-30 1971-12-31 Columbia Gas System
DE2233369A1 (de) * 1972-07-07 1974-01-24 Cramer Geb Gasbeheiztes grillgeraet

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2120843A1 (es) * 1995-02-27 1998-11-01 Toyotomi Kogyo Co Ltd Quemador de cocina.
WO2000001286A1 (en) * 1998-07-02 2000-01-13 Best Willie H Heating assembly and cooking apparatus
US6114666A (en) * 1998-07-02 2000-09-05 Best; Willie H. Heating assembly and cooking apparatus
WO2000040912A2 (en) * 1999-01-08 2000-07-13 Quadlux, Inc. Scanning lightwave oven and method of operating the same
WO2000040912A3 (en) * 1999-01-08 2000-11-30 Quadlux Inc Scanning lightwave oven and method of operating the same
US6417494B1 (en) 1999-01-08 2002-07-09 Quadlux, Inc. Scanning lightwave oven and method of operating the same
DE10222450A1 (de) * 2002-02-12 2003-08-21 Voith Paper Patent Gmbh Als Flächenstrahler ausgebildeter Infrarot-Strahler
US7038227B2 (en) 2002-02-12 2006-05-02 Voith Paper Patent Gmbh Infrared emitter embodied as a planar emitter
WO2006080949A3 (en) * 2004-06-23 2007-03-08 Willie H Best Radiant burner
US7726967B2 (en) 2004-06-23 2010-06-01 Char-Broil, Llc Radiant burner
US7853129B2 (en) 2004-06-23 2010-12-14 Char-Broil, Llc Infrared emitting apparatus
US8074634B2 (en) 2006-09-26 2011-12-13 Char-Broil, Llc Cooking apparatus with concave emitter
US8770181B2 (en) 2006-09-26 2014-07-08 Char-Broil, Llc Methods and apparatus for generating infrared radiation from convective products of combustion
US8227728B2 (en) 2006-11-10 2012-07-24 Char-Broil, Llc Radiant tube broiler
US8890037B2 (en) 2006-11-10 2014-11-18 Char-Broil, Llc Radiant tube broiler
US8776775B2 (en) 2009-06-29 2014-07-15 W.C. Bradley Co. Single cavity radiant cooking apparatus
US10004241B2 (en) 2012-11-15 2018-06-26 W.C. Bradley Co. Electric roaster and smoker
US9510604B2 (en) 2013-06-17 2016-12-06 W.C. Bradley Co. Outdoor cooker and smoker, and fuel combustor therefor
US9668613B2 (en) 2013-06-17 2017-06-06 W.C. Bradley Co. High efficiency apparatus and method for cooking, heating and drying
US10485245B2 (en) 2013-06-17 2019-11-26 W.C. Bradley Co. Outdoor cooker and smoker, and fuel combustor therefor
US9709281B2 (en) 2014-03-31 2017-07-18 W.C. Bradley Co. High efficiency side burner and outdoor cooker
US10426176B2 (en) 2015-03-25 2019-10-01 W.C. Bradley Co. Vertical electric cooker and smoker and smoke box
EP3617592A1 (de) * 2018-08-31 2020-03-04 Grand Mate Co., Ltd. Verbrennungsvorrichtung
US11015803B2 (en) 2018-11-05 2021-05-25 Grand Mate Co., Ltd. Combustion device

Also Published As

Publication number Publication date
FI864284A (fi) 1987-04-23
NO864068L (no) 1987-04-23
GB8526068D0 (en) 1985-11-27
NO864068D0 (no) 1986-10-13
DK499786D0 (da) 1986-10-17
DK499786A (da) 1987-04-23
AU6387686A (en) 1987-04-30
JPS62175528A (ja) 1987-08-01
FI864284A0 (fi) 1986-10-22
ZA867838B (en) 1988-09-28
NZ218017A (en) 1988-08-30

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19890706

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Inventor name: GOODCHILD,GRAHAM HOWLETT

Inventor name: CROSLEY, PETER WILLIAM