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WO2009040115A2 - Appareil de cuisson au gaz - Google Patents

Appareil de cuisson au gaz Download PDF

Info

Publication number
WO2009040115A2
WO2009040115A2 PCT/EP2008/008121 EP2008008121W WO2009040115A2 WO 2009040115 A2 WO2009040115 A2 WO 2009040115A2 EP 2008008121 W EP2008008121 W EP 2008008121W WO 2009040115 A2 WO2009040115 A2 WO 2009040115A2
Authority
WO
WIPO (PCT)
Prior art keywords
burner
actuator
gas flow
knob
intermittency
Prior art date
Application number
PCT/EP2008/008121
Other languages
English (en)
Other versions
WO2009040115A3 (fr
Inventor
Pedro MarÍa ECHEVERRÍA REMÓN
Original Assignee
Coprecitec, S.L.
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 Coprecitec, S.L. filed Critical Coprecitec, S.L.
Publication of WO2009040115A2 publication Critical patent/WO2009040115A2/fr
Publication of WO2009040115A3 publication Critical patent/WO2009040115A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/002—Regulating fuel supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • 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
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/124—Control panels
    • 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
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/10—High or low fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/08—Household apparatus

Definitions

  • the present invention relates to gas cooking appliances which comprise at least one burner, and more specifically to gas cooking appliances in which the flame intensity of said burner can be regulated with the aim of providing an intermittent flame.
  • the intensity of the flame of a burner is controlled by an actuator or a rotating knob controlled by the user.
  • the gas flow to the burner is opened or closed, allowing the flame to ignite and maintain or not .
  • the intensity of the flame is regulated to allow a greater or smaller volume of gas to flow to said burner.
  • US 5575638 discloses an appliance with at least one burner that may comprise a constant flame in a first operating mode or an intermittent flame in a second operating mode, depending on the requirements of the user, the appliance also providing different levels of intermittency in the second operating mode.
  • the appliance comprises an actuator to open the gas flow towards the burner, or otherwise, to select the first operating mode or the second operating mode, said actuator being designed to be operated in both modes of operation, namely in said first mode and in said second mode.
  • the gas cooking appliance of the invention comprises at least one gas burner, opening means connected to the burner to allow or prevent the gas flow to said burner, regulation means connected to the burner to regulate the gas flow to said burner, and at least one actuator connected to the burner.
  • a user may open and regulate the gas flow towards said burner acting on the actuator, said actuation enabling the opening means to open said gas flow and enabling the regulation means to regulate said gas flow (the volume of gas towards said burner) , in order to regulate the flame intensity of said burner.
  • the appliance is designed to operate in a first operating mode in which the opening means allow a continuous gas flow towards the burner, thereby a constant flame being provided in said burner, and in a second operating mode in which said opening means activate a cyclical opening and closing of the gas flow towards the burner, an intermittent flame being provided in said burner.
  • the appliance also comprises an intermittency actuator associated to the burner, thus enabling a user to select the second operating mode for said burner using the intermittency actuator, the opening means activating the cyclical opening and closing of the gas flow to the burner when the second mode is selected.
  • the actuator used to open and regulate the gas flow towards a burner may be a conventional actuator, not being necessary to design and/or use a specific actuator adapted to operate in the first and second operating modes, in order to the appliance being possible to operate in said first and second operating modes.
  • Figure 1 is a schematic view of a first embodiment of the gas cooking appliance of the invention.
  • Figure 2 is a perspective view of the appliance of the invention, according to the embodiment Fig. 1.
  • Figure 3 shows an actuator of the appliance of the invention, according to the embodiment Fig. 1.
  • Figure 4 is a schematic view of a second embodiment of the gas cooking appliance of the invention.
  • Figure 5 is a view in perspective of the appliance of the invention, according to the embodiment Fig. 4.
  • FIG. 1 shows, schematically, an embodiment of the gas cooking appliance 100 of the invention, which is used to cook and/or heat foods.
  • the appliance 100 comprises four gas burners 1 in this embodiment, opening means 3 connected to each burner 1 to allow or prevent a gas flow towards the corresponding burner 1 from a gas intake 9 through a gas duct 17, regulation means 6 connected to each burner 1 to regulate the gas flow (the volume of gas) towards the corresponding burner 1, and at least one actuator 4 associated to each burner 1.
  • the opening means 3 may be conventional electrical valves for example .
  • a user may open or close the gas flow towards a burner 1 by acting on the corresponding actuator 4, the corresponding opening means 3 allowing the flow when the actuator 4 is acted.
  • the corresponding regulation means 6 regulate the gas flow towards the burner 1 accordingly, allowing the flow of a higher or lower volume of gas in accordance with the action upon said actuator 4.
  • sparks are generated close to said burner 1 by a spark generator 15 for a limited time interval in order to ignite a flame in said burner 1.
  • thermocouple 16 is associated to each burner 1 to determine if the flame has been lit or not, with the result that if it is found that the flame has not been lit after the generation of sparks a further attempt may be made, for example, more sparks being generated, or, alternatively, an error can be detected and indicated, the gas flow towards said burner 1 being closed for safety reasons.
  • the appliance 100 of the invention is designed to operate in a first operating mode in which the opening means 3 allow a continuous gas flow towards a burner 1 when the actuator 4 has been acted, thereby a constant flame being provide in the burner 1 with the intensity required by the user by means of said actuator 4, the regulation means 6 thus allowing a larger or smaller volume of gas to flow in accordance with said required intensity.
  • Said appliance 100 is also designed to operate in a second operating mode in which an intermittent flame is provided in said burner 1.
  • the opening means 3 can activate a cyclical opening and closing of a gas flow towards the corresponding burner 1, opening and closing said flow once in each period.
  • the appliance 100 of the invention also comprises an intermittency actuator 5 associated to at least one burner 1, although it preferably comprises an intermittency actuator 5 connected to each burner 1, and a user may select the second operating mode in the corresponding burner 1 acting on said intermittency actuator 5.
  • the intermittency actuator 5 preferably comprises a push button which is pressed by a user to select the second operating mode, although it may also comprise a rotary actuator for example, a user turning said rotary actuator to select the second operating mode.
  • the opening means 3 are adapted to provide different levels of intermittency in the flame of the burner 1 in the second operating mode.
  • a user may select the required intermittency level using the intermittency actuator 5, or by means of at least one additional actuator not shown in Figures, said opening means 3 keeping the gas flow open for more or less time in each period depending on said level selected by the user by means of said intermittency actuator 5.
  • a push button is used as an intermittency actuator 5
  • a push button is used as an intermittency actuator 5
  • a first preset level of intermittency is selected and the opening means 3 keep the gas flow open for a first preset time interval and closed for the rest of the cooking period.
  • a second preset level of intermittency is selected, with the opening means 3 keeping the gas flow open for a second preset time interval different to the first, and closed for the rest of the period.
  • the number of levels and time intervals may be preset by the manufacturer of the appliance 100 or even by a distributor, for example, the end user not setting them. It is also possible to configure different ways of acting on said push button to activate different levels of intermittency, for example to keep it pressed down for preset time intervals .
  • one or more intermittency levels may be selected according to the position of the actuator (angle of rotation) , the opening means 3 keeping the gas flow open for different preset time intervals in a single period in each case.
  • the opening and closing of both the push button and the rotary actuator is generated cyclically, with a
  • the gas flow may remain open for 10 seconds and closed for 50 seconds in each period, or open for 20 seconds and closed for 40 seconds in another preset level of intermittency.
  • the appliance 100 of the invention may also comprise a number of indication means 8 equal to the number of flame intermittency levels possible, each level of intermittency being connected to an indication means 8 such as a plurality of LEDs for example.
  • An indication means 8 an LED, lights up when the user selects the corresponding level of intermittency by means of the intermittency actuator 5. It is possible that when selecting a certain level of intermittency the LEDs corresponding to the lower levels of intermittency remain lit or switched off, depending on the preset configuration.
  • other equivalent indication means 8 may be used to indicate to the user at all times whether the second operational mode is selected or not and, the level of intermittency selected if it is selected, as in a display for example.
  • the actuator 4, the intermittency actuator 5 and the indication means 8 may be disposed, for example, on the front part 13 of the appliance 100 although they may be disposed on another part of said appliance 100 which is accessible to the user.
  • the actuator 4 is a rotating knob, the gas flow to the burner 1 being prevented when the knob is in an inactive position Pi and said flow being enabled when the knob is in an active position Pa, the active position Pa corresponding with a range of angles of rotation of said knob in relation to the inactive position Pi, delimited between a minimum opening position Pmin and a maximum opening position Pmax.
  • the regulation means 6 regulate the gas flow towards said burner 1 and, therefore, the flame intensity, in accordance with the angle of rotation applied to said knob in relation to the inactive position Pi, therefore allowing a greater or smaller volume of said gas to flow towards the burner 1 in accordance with said angle of rotation.
  • the knob is positioned in the minimum opening position Pmin the minimum possible gas flow is allowed, more gas being allowed to flow as the knob is turned towards the maximum opening position Pmax, the maximum possible flow being allowed when the knob is positioned in the maximum opening position Pmax.
  • each knob of the appliance 100 is associated to a conventional switch 11, the switch 11 being opened when the knob is in the inactive position Pi or closed when it is in an active position Pa (or vice versa) .
  • Selection means 7 disposed on said appliance 100 are associated to each switch 11 by means of a main line 10, and are associated to the corresponding opening means 3 by means of an auxiliary- line 12. From the knob, a main electrical signal (not shown in Figures) reaches the selection means 7 through the corresponding main line 10, said selection means 7 being able to determine if the switch 11 is opened or closed in accordance with said main electrical signal.
  • the selection means 7 determine, thanks to the main electrical signal, that the corresponding switch 11 is opened and communicate it to the opening means 3 through the auxiliary line 12. If the second operating mode is selected for said burner 1, the selection means 7 determine, thanks to the main line 10, that the corresponding switch 11 has been closed and communicate it to the opening means 3 through the auxiliary line 12, indicating the cyclical opening and closing cycles of the gas flow towards the corresponding burner 1 by means of an auxiliary electrical signal (not shown in Figures) . From said selection means 7 the auxiliary electrical signal reaches the corresponding opening means 3 through the auxiliary line 12, opening means 3 allowing or preventing the gas flow in accordance with said auxiliary electrical signal.
  • the selection means 7 When it is determined that the switch 11 is opened, the main electrical signal and the auxiliary electrical signal are equal. When it is determined that the switch 11 is closed, the selection means 7 generates an auxiliary electrical signal different from the main electrical signal, depending the opening and closing actions of the opening means 3 on said auxiliary electrical signal.
  • the selection means 7 are also designed to generate sparks by means of the spark generator 15, and to determine if the flame has been lit or not thanks to the thermocouple 16.
  • the regulation means 6 regulate the gas flcv; towards the corresponding burner 1 according to the position of the actuator 4 (to the angle of rotation of said actuator 4) , said position being controlled by the user.
  • the appliance 100 may preferably operate in the second operating mode regardless of the position of the knob, provided that it is in an active position Pa. However, it is possible to allow only the second operating mode when the knob is positioned in a preset position or a position next to said preset position.
  • the rotating knob may also be resistive and may thus have different ohm values 01, 02 or 03 associated to it depending on its position.
  • the knob when said knob is positioned in the inactive position Pi it may have a first ohm value 01 associated for example, a second ohm value 02 or a third value 03 when it is positioned in different positions of the active position Pa.
  • the knob may have a second ohm value 02 associated when it is in the minimum opening position Pmin or close to it, for example with an angle of rotation of approximately 5 degrees, and a third ohm value 03 associated when it is in any other position corresponding to the active position Pa, as shown in Figure 3.
  • the second operating mode may be allowed only when the knob has the second ohm value 02 associated, the selection means 7, for example, determining if it has said second ohm value 02 associated or not.
  • the actuator 4 comprises at least two push buttons 4a and 4b associated to the opening means 3 and to the regulation means 6, thus said opening means 3 are enabled to open the gas flow and said regulation means 6 are enabled to regulate the gas flow to a burner 1 by means of the corresponding push buttons 4a and 4b.
  • One of the push buttons 4a and 4b may be pressed to increase the flame intensity, while another push button 4a or 4b may be pressed to decrease the flame intensity for example.
  • the appliance 100 comprises control means 14 connected to the push buttons 4a and 4b, to the opening means 3 and to the regulation means
  • said control means 14 determine the flame intensity required by the user by means of said push buttons 4a and 4b, indicating the opening of the gas flow towards the corresponding burner 1 to said opening means 3 if they determine that a user has switched said burner 1 on by pressing one of the buttons 4a or 4b, and indicating the volume of gas to flow to said regulation means 6 in accordance with the flame intensity selected by the user by means of said push buttons 4a and 4b.
  • said control means 14 determine the level of intermittency selected, this being indicated to the regulation means 6 and the indication means 8.
  • the control means 14 are also designed to cause the generation of sparks by means of the spark generator 15 and to determine if the flame has been lit or not thanks to the thermocouple 16.
  • the regulation means 6 regulate the volume of gas to flow towards a burner 1, preferably regardless of the flame intensity selected for said burner 1 by means of the push buttons 4a and 4b, although it may also be regulated in accordance with said selected flame intensity or even in accordance with said selected flame intensity when it is equal to or greater than a preset value, said flow being regulated as if said preset value had been selected in the event of it being lower.
  • a minimum flame intensity is required (a preset value) the risk of the flame not being lit or going out when it is not supposed to during the second operating mode is reduced.

Landscapes

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

Abstract

Cette invention se rapporte à un appareil de cuisson au gaz qui comprend au moins un brûleur (1), des moyens d'ouverture (3) permettant ou empêchant la circulation du gaz vers le brûleur (1), des moyens de régulation (6) permettant de réguler la circulation du gaz vers le brûleur (1), et au moins un actionneur (4) associé au brûleur (1). L'utilisateur peut permettre la circulation du gaz vers un brûleur (1) au moyen de l'actionneur (4), ce qui permet aux moyens d'ouverture (3) de permettre ladite circulation. L'utilisateur peut également réguler ladite circulation du gaz à l'aide de l'actionneur (4), en permettant aux moyens de régulation (6) de réguler la circulation du gaz. L'appareil (100) est conçu de manière à fonctionner dans un premier mode de fonctionnement dans lequel une flamme constante est fournie au brûleur (1), et dans un second mode de fonctionnement dans lequel une flamme intermittente est fournie audit brûleur (1).
PCT/EP2008/008121 2007-09-28 2008-09-25 Appareil de cuisson au gaz WO2009040115A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200702548A ES2325197B1 (es) 2007-09-28 2007-09-28 "aparato de cocina a gas con regulacion de potencia de llama".
ESP200702548 2007-09-28

Publications (2)

Publication Number Publication Date
WO2009040115A2 true WO2009040115A2 (fr) 2009-04-02
WO2009040115A3 WO2009040115A3 (fr) 2009-07-30

Family

ID=40511938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/008121 WO2009040115A2 (fr) 2007-09-28 2008-09-25 Appareil de cuisson au gaz

Country Status (2)

Country Link
ES (1) ES2325197B1 (fr)
WO (1) WO2009040115A2 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008155278A3 (fr) * 2007-06-21 2009-11-12 BSH Bosch und Siemens Hausgeräte GmbH Système de commande pour une cuisinière à gaz
EP2461105A1 (fr) 2010-12-01 2012-06-06 Coprecitec, S.L. Appareil de cuisson
EP2703723A1 (fr) * 2012-08-28 2014-03-05 Electrolux Home Products Corporation N.V. Procédé de fonctionnement d'un brûleur à gaz d'un appareil de cuisson
WO2013178582A3 (fr) * 2012-05-28 2014-05-01 BSH Bosch und Siemens Hausgeräte GmbH Gazinière et dispositif de régulation d'écoulement de gaz et procédé associé
JP2016061492A (ja) * 2014-09-18 2016-04-25 リンナイ株式会社 ガスコンロ装置
EP3086038A1 (fr) * 2015-04-22 2016-10-26 Whirlpool Corporation Appareil à écoulement de gaz à commande électronique pour brûleurs
CN109210577A (zh) * 2017-07-04 2019-01-15 科佩西西班牙集团有限公司 燃气烹饪器具
US10935250B2 (en) 2016-12-21 2021-03-02 Copreci, S. Coop. Gas cooking appliance
WO2021037541A1 (fr) 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Dispositif de cuisson au gaz comprenant un élément de régulation de gaz
US20210116131A1 (en) * 2018-04-18 2021-04-22 Samsung Electronics Co., Ltd. Cooking apparatus and control method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308868A1 (fr) * 1975-04-24 1976-11-19 Gaz De France Dispositif pour le chauffage ou la cuisson par generateur de chaleur a combustible gazeux
FR2486629A1 (fr) * 1980-07-11 1982-01-15 Rv Const Electriques Dispositif de controle de flamme a sequenceur, pour appareil a bruleurs
FR2504241B2 (fr) * 1981-04-16 1985-06-21 Rv Const Elect Dispositif de controle de flamme a sequenceur, pour appareils a bruleurs
DE3330318A1 (de) * 1983-08-23 1985-03-07 Ruhrgas Ag, 4300 Essen Gas-koch- oder heizgeraet
US5575638A (en) * 1994-03-29 1996-11-19 Thermador Corporation Stove burner simmer control
DE19949600A1 (de) * 1999-10-14 2001-04-19 Bsh Bosch Siemens Hausgeraete Gasbeheiztes Hausgerät
CA2387843A1 (fr) * 1999-10-18 2001-04-26 Pierre Repper Commande electronique de surface de cuisson au gaz comportant un systeme de mijotage, et procede d'utilisation
ATE452315T1 (de) * 2003-09-25 2010-01-15 Bsh Bosch Siemens Hausgeraete Gaskochstelle

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8353281B2 (en) 2007-06-21 2013-01-15 Bsh Bosch Und Siemens Hausgeraete Gmbh Control arrangement for a gas stove
WO2008155278A3 (fr) * 2007-06-21 2009-11-12 BSH Bosch und Siemens Hausgeräte GmbH Système de commande pour une cuisinière à gaz
EP2461105A1 (fr) 2010-12-01 2012-06-06 Coprecitec, S.L. Appareil de cuisson
WO2013178582A3 (fr) * 2012-05-28 2014-05-01 BSH Bosch und Siemens Hausgeräte GmbH Gazinière et dispositif de régulation d'écoulement de gaz et procédé associé
EP2703723B1 (fr) 2012-08-28 2016-10-12 Electrolux Home Products Corporation N.V. Procédé de fonctionnement d'un brûleur à gaz d'un appareil de cuisson
US10739010B2 (en) 2012-08-28 2020-08-11 Electrolux Home Products Corporation N.V. Method of operating a gas burner of a cooking appliance
CN104583680A (zh) * 2012-08-28 2015-04-29 伊莱克斯家用产品股份有限公司 用于操作烹饪器具的气体燃烧器的方法
EP2703723A1 (fr) * 2012-08-28 2014-03-05 Electrolux Home Products Corporation N.V. Procédé de fonctionnement d'un brûleur à gaz d'un appareil de cuisson
WO2014032885A1 (fr) * 2012-08-28 2014-03-06 Electrolux Home Products Corporation N. V. Procédé de fonctionnement d'un brûleur à gaz d'un appareil de cuisson
JP2016061492A (ja) * 2014-09-18 2016-04-25 リンナイ株式会社 ガスコンロ装置
EP3086038A1 (fr) * 2015-04-22 2016-10-26 Whirlpool Corporation Appareil à écoulement de gaz à commande électronique pour brûleurs
US9841191B2 (en) 2015-04-22 2017-12-12 Whirlpool Corporation Appliance with electronically-controlled gas flow to burners
US10634347B2 (en) 2015-04-22 2020-04-28 Whirlpool Corporation Appliance with electronically-controlled gas flow to burners
US10935250B2 (en) 2016-12-21 2021-03-02 Copreci, S. Coop. Gas cooking appliance
CN109210577A (zh) * 2017-07-04 2019-01-15 科佩西西班牙集团有限公司 燃气烹饪器具
US20210116131A1 (en) * 2018-04-18 2021-04-22 Samsung Electronics Co., Ltd. Cooking apparatus and control method thereof
US11592185B2 (en) * 2018-04-18 2023-02-28 Samsung Electronics Co., Ltd. Cooking apparatus and control method thereof
WO2021037541A1 (fr) 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Dispositif de cuisson au gaz comprenant un élément de régulation de gaz

Also Published As

Publication number Publication date
ES2325197A1 (es) 2009-08-27
ES2325197B1 (es) 2010-06-04
WO2009040115A3 (fr) 2009-07-30

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