WO2009065197A1 - Four à gaz pour la cuisson vapeur et cuisinière - Google Patents

Four à gaz pour la cuisson vapeur et cuisinière Download PDF

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Publication number
WO2009065197A1
WO2009065197A1 PCT/BR2008/000271 BR2008000271W WO2009065197A1 WO 2009065197 A1 WO2009065197 A1 WO 2009065197A1 BR 2008000271 W BR2008000271 W BR 2008000271W WO 2009065197 A1 WO2009065197 A1 WO 2009065197A1
Authority
WO
WIPO (PCT)
Prior art keywords
oven
storing means
inner cavity
heating means
liquid
Prior art date
Application number
PCT/BR2008/000271
Other languages
English (en)
Inventor
Cristina Westphal Hartke
Original Assignee
Whirlpool S.A.
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 S.A. filed Critical Whirlpool S.A.
Publication of WO2009065197A1 publication Critical patent/WO2009065197A1/fr

Links

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
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising
    • 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
    • F24C15/00—Details
    • F24C15/003—Details moisturising of air
    • 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
    • F24C3/008—Ranges

Definitions

  • the present invention relates to an oven capable of providing vapor cooking. More specifically, the invention relates to a gas oven capable of providing the benefits of vapor cooking, such as: reduction of the losses of nutrients such as vitamins and minerals, providing a more healthful food for the user; improvement of the sensory quality of the food through the decrease in the loss of moisture by evaporation and the consequent increase in the succulence of the product, especially meats; and decrease in the time it takes to prepare some categories of foods, like fish filets.
  • the present invention also relates to a kitchen-range comprising a range top, either gas-operated or electric, and the above-mentioned oven. Description of the Prior Art
  • gas ovens are predominantly used in many countries, mainly in Brazil and in Latin America. In the other regions there is also a gas- oven consuming market, although less predominant.
  • vapor cooking method is preferred, because it helps to preserve the natural moisture of the foods, increasing the sensory quality, as well as helping to retain a larger part of the nutrients, especially vegetables, thus making the food to be consumed more healthful.
  • Another advantage of vapor cooking is that, for some types of foods, the cooking time is shorter than with the traditional cooking methods, since the heat-transfer process is more efficient, also resulting in more homogeneous cooking. In professional kitchens (for example, in restaurants), vapor cooking is usually employed for the reasons mentioned above.
  • the ovens or ranges capable of providing vapor cooking are of the high-end type, that is to say, they are indented for users having a high purchase power and have a high cost with respect to the conventional ones. So, this type of oven has not yet become popular for many domestic users, mainly in Brazil and in Latin America.
  • tops suitable for vapor cooking the capacity of which is limited to small portions of foods.
  • An oven or kitchen-range capable of cooking with vapor provides the possibility of accommodating a larger amount/volume and diversity of foods with respect to tops.
  • Document EP0517681 describes a gas oven or an electric oven provided with a vapor-cooking system.
  • a system comprises a water reservoir with varying capacity, which can be adapted to the different needs and characteristics of the product, and a heating element for evaporating the water contained in said reservoir.
  • the proposed system provides a vapor- generation rate capable of cooking a wide range of foods, providing the above-described benefits.
  • this solution seems to be effective, it involves a certain complexity of implementation, since it is necessary to alter/adapt the whole internal structure of an ordinary oven to enable storing, transporting and distributing water, mainly in the side wall and in the lower base. Such alterations/ adaptations significantly make the production cost of the oven high and, as a result, its final price for the consumer.
  • the first objective of the present invention is to provide a gas oven capable of providing vapor cooking through a simple and easy-to- implement constructive arrangement, involving a reduced production cost and that, in addition, is easy and simple to operate, maintain and cleaning.
  • a second objective of the present invention is to propose a kitchen-range comprising the above-mentioned oven.
  • a first way of achieving the first objective of the present invention is by providing a gas oven for vapor cooking, comprising at least: an inner cavity provided with a useful portion accessible by a user and capable of accommodating utensils and foods; storing means capable of accommodating at leas one kind of liquid; and a heating device associable to the storing means and capable of raising the temperature of the liquid contained in the storing means to provide evaporation of at least a portion of the liquid, the storing means being arranged integrally and fixedly in the useful portion of the inner cavity.
  • a second may of achieving the first objective of the present invention is by providing a gas oven for vapor cooking having at least an inner cavity capable of accommodating utensils and foods; storing means capable of accommodating at leas one kind of liquid; and a heating device associable to the storing means and capable of raising the temperature of the liquid contained in the storing means to provide evaporation of at least a portion of the liquid, the storing means being removably associable to the oven.
  • a third way of achieving the first objective of the present invention is by providing a gas oven for vapor cooking, comprising at least one inner cavity having a base; storing means capable of accommodating at least one kind of liquid; and a heating device associable to the storing means and capable of raising the temperature of the liquid contained in the storing means, to provide evaporation of at least a portion of the liquid, the storing means being arranged integrally and fixedly below the base of the useful portion of the inner cavity.
  • a second objective of the present invention is achieved by providing an oven having a cooktop and comprising at lest one oven according to one of the above-mentioned ways of achieving it.
  • Figure 1 represents a perspective view of an oven according to the present invention
  • Figure 2 represents a perspective view of the storing means
  • Figure 3 represents a front view of the oven illustrated in figure 1 ;
  • Figure 4 represents a side view of the oven illustrated in figurei ;
  • Figure 5 represents a perspective view of the internal part of the oven, illustrating a possible constructive variation of the storing means (container) and of the heating means;
  • Figure 6 represents a perspective view of the internal part of the oven, illustrating a possible constructive variation of the storing means
  • Figure 7 represents a perspective view of an oven, also according to the present invention, illustrating another possible constructive variation of the oven, highlighting the chute and water collector;
  • Figure 8 represents a perspective back view of the oven illustrated in figure 7, showing the storing means arranged below the base;
  • Figure 9 represents a perspective view of the base-container- water collector assembly comprised by the kitchen-range illustrated in figure 7;
  • Figure 10 represents an exploded view of the base-container- water collector assembly comprised by the kitchen-range illustrated in figure 7, showing a possible variation of the constructive arrangement of the base.
  • the gas oven for vapor cooking 100 is illustrated in figure 1.
  • the oven 100 comprises at least one inner cavity 105, storing means 101 , illustrated in figure 2, capable of accommodating at least one kind of liquid and heating means 103 associable to the storing means 101.
  • the inner cavity 105 is provided with portion capable of accommodating utensils (tops, baking mold, grills, etc.) and foods in general. This portion, called “useful portion", is accessible by a user without the need to use special tools. In this way, the useful portion represents the effectively usable part 100 of the oven, being delimited by the walls of the inner cavity 105.
  • the inner cavity 105 preferably comprises a supporting grill 106 for holding or accommodating the utensils and/or foods.
  • the storing means 101 is preferably a container like, for example, a tray 104 capable of accommodating at least one kind of liquid, preferably water.
  • a tray 104 capable of accommodating at least one kind of liquid, preferably water.
  • other types of storing means 101 may be used, such as tubes, closed reservoirs or any other means suitable for this application.
  • the container material is preferably metallic, in order to bear high temperatures. Alternatively, one may use other materials, provided that they are resistant to the temperatures to which the inner cavity 105 is subjected.
  • the storing means 101 may have removable cover 102 arranged over the tray 104.
  • the removable cover 102 comprises at least one hole 108 capable of dispersing the vapor from the liquid contained in the tray 104 to the useful portion of the inner cavity 105.
  • the storing means 101 is arranged integrally and fixed to the useful portion of the inner cavity 105.
  • the storing means 101 is preferably arranged on a base 107 comprised by the inner cavity 105.
  • the storing means 101 may be represented by a recess in the base 107, instead of the tray 104.
  • the storing means 101 may be arranged in an upper region of the useful portion of the inner cavity 105 or in an position suitable for the application.
  • the storing means 101 is removably associable to the oven 100.
  • the container is removably arranged on a base 107 comprised by the inner cavity 105.
  • the removable container may be arranged below the base 107 of the inner cavity 105, inside the walls of the oven 100, in a region above the oven 100 or in an position suitable for the utilization.
  • Figure 6 illustrates an example of removable storing means 101.
  • the storing means 101 is arranged integrally and fixedly below the base 107.
  • This embodiment differs from the object described in document EP0517681 , since the storing means 101 of the present invention is integrally arranged in a single region, without extending to the portion beyond the region comprised below the base 107.
  • the storing means of the oven described in document EP0517681 extends to a tank arranged in an internal portion of the side region of the oven, and so this is a more complex constructive arrangement, which involves a higher cost, apparently it is more difficult to carry out the maintenance and cleaning.
  • the container may be positioned in the front, back or central portion of the inner cavity 105.
  • the water feed can be carried out by hand, the water of the container being directly or indirectly replaced.
  • one may implement an assembly composed of chute 109 and collector 110, shown in figures 7 to 10, within the inner cavity 105 to further facilitate the supply of water of the container.
  • the water is preferably placed directly into the chute 109 by the user, being directed to the collector 110, which in turn leads the water to the container.
  • Another option is the implementation of a water collecting drawer, connected to a duct that leads the water fed through the drawer to the container.
  • the heating means 103 is capable of raising the temperature of the liquid (water) contained in the storing means 101 to provide evaporation of at least a portion of the liquid.
  • such heating means 103 is an electric resistance adequately built to prevent corrosion and degradation.
  • the heating is provided by an electric current generated by any electronic device capable of acting as a source of voltage or current. This electric resistance may be built from any suitable materials.
  • Another option consists in that the heating means 103 is the burner or gas heater itself of the product in question (oven or kitchen-range). Any other heating device may be used, provided that it is suitable for the application.
  • the heating means 103 may be removably or fixedly associated to the oven 100.
  • the term "removable” is used here in the meaning that the user is capable of removing it without using tools.
  • the electric resistance is removable to facilitate a possible exchange, maintenance and/or cleaning.
  • a fixed resistance may be adopted without impairing the main aspects of this invention.
  • the heating means 103 (for example, an electric resistance), is preferably capable of moving angularly with respect to the inner cavity 105. Such a movement enables the heating means 103 to detach from the storing means 101 , to facilitate the maintenance and/or cleaning of these parts.
  • the heating means 103 (in this case, the electric resistance) is arranged on the tray 104, being in contact with the liquid and providing direct heating of said liquid.
  • the heating means 103 may be arranged below the tray 104, providing direct heating of the liquid contained in the tray 104.
  • the oven 100 further comprises at least one control system capable of controlling the evaporation of the liquid contained in the storing means 101 , according to the command of the user or from any pre- established configuration already programmed by the factory.
  • a control system may be in open mesh, closed mesh or still a combination thereof.
  • the closed-mesh control system comprises at least one sensor, an actuator and a microcontroller or microprocessor that interacts with each other.
  • a moisture sensor capable of measuring the moisture of the useful portion of the inner cavity 105 and thus carry out the closed-mesh control so as to maintain the moisture at a value pre-adjusted by the user or at standard values preprogrammed by the factory.
  • indicative references like drawings and/or names of foods and dishes, each indicative reference being associated to a position of an adjustment button, for instance.
  • the oven preferably comprises a sensor capable of measuring the level of liquid in the storing means 101 , to determine whether there is the need to replace the liquid.
  • the electric signals of the sensors are sent to the microcontroller or microprocessor, which analyzes and processes such signals so as to generate at least one output signal capable of controlling the action of an actuating device.
  • the microcontroller or microprocessor is provided with a control program capable of receiving the data from the sensor to control the actuator.
  • the control program algorithm may be based on any of the various known control techniques, as for instance ON-OFF, PID, optimum control, intelligent techniques like Fuzzy or neural Networks, among others.
  • the actuator is capable of activating and disactivating the heating means according to the commands sent by the microcontroller or microprocessor or further, in the event that the actuator enables a more sophisticated control, it is capable of controlling the intensity of the electric current that circulates through the electric resistance, thus providing more accurate control.
  • the oven 100 further comprises, preferably, an alarm device associated to the control system, capable of indicating an abnormal condition of functioning to the user through visual and/or sound signals.
  • the oven 100 is preferably of the multifunctional type, that is to say, it aggregates functions of the gas ovens of providing vapor cooking.
  • the oven 100 can function only as a conventional gas oven, without the actuation of the vapor-cooking function, if the user so desires.
  • One can also use gas cooking simultaneously with vapor cooking.
  • a third operation is the use of the vapor function without actuating the gas.
  • the oven 100 also comprises an exhaustion system, not shown in the figures, to disperse the vapor and the gas (carbon monoxide).
  • the entry of the exhaustion system may be positioned in any position of the inner cavity 105 of the oven, extending as far as the outer environment. Preferably, the entry is positioned at the upper part of the inner cavity 105 in order to improve the homogeneity of the vapor dispersion.
  • the exhaustion system may contain a ventilator to aid in dispersing the vapor.
  • the oven 100 disclosed in the present invention involves a smaller number of components, parts and pieces, as for example, tubing and filters, with respect to the vapor oven known from the prior art.
  • the constructive arrangement of the oven 100 is more simple and easy to be implemented and, as a result, the production process is also simplified, involving a lower cost, since few modifications and adaptations of the ordinary oven are necessary.
  • the solution presented does not require a specific top, which would limit the usability of the oven.
  • a kitchen-range 200 which comprises at least a cooktop and an oven according to the above description is also the object of this invention and is illustrated in figures 7 and 8.
  • such a kitchen-range 200 is capable of performing the functions of an ordinary cooktop (a gas stove or electric stove), also aggregating the capability of vapor cooking of the oven 100, through a constructive arrangement that is simple and easy to implement, use, maintain, clean and of low production cost (low sale price to the consumer).
  • this invention is focused on a domestic user, this new constructive arrangement, as described above, can also be applied to ovens and kitchen-ranges of professional use, such as those used at restaurants and commercial establishments.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)

Abstract

La présente invention concerne un four à gaz pouvant assurer la cuisson à la vapeur au moyen d'un agencement structurel facile à mettre en oeuvre. Un tel agencement structurel se présente sous forme d'un four à gaz (100) pour la cuisson vapeur qui comprend au moins une cavité interne (105) dotée par un utilisateur d'une partie utile et pouvant contenir des ustensiles et des aliments; un moyen de stockage (101) capable de contenir au moins un type de liquide; et un moyen de chauffe (103) qui peut s'associer au moyen de stockage (101) et qui peut élever la température du liquide contenu dans le moyen de stockage (101) pour assurer l'évaporation d'au moins une partie du liquide, ledit moyen de stockage (101) étant disposé monobloc et à demeure sous la base (107) de la cavité interne (105). Facultativement, le moyen de stockage (101) peut être associé au four (100) de manière non permanente. Cette invention concerne également une cuisinière (200) comprenant au moins une surface de cuisson et un four (100) tel que celui de cette invention.
PCT/BR2008/000271 2007-11-23 2008-09-04 Four à gaz pour la cuisson vapeur et cuisinière WO2009065197A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRPI0705924-8 2007-11-23
BRPI0705924 BRPI0705924A2 (pt) 2007-11-23 2007-11-23 forno a gás para cozimento a vapor e fogão

Publications (1)

Publication Number Publication Date
WO2009065197A1 true WO2009065197A1 (fr) 2009-05-28

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WO (1) WO2009065197A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390579A1 (fr) * 2010-05-28 2011-11-30 Electrolux Home Products Corporation N.V. Réservoir d'eau pour cavité de four d'un four de cuisson
EP2433526A1 (fr) * 2010-09-23 2012-03-28 BSH Bosch und Siemens Hausgeräte GmbH Support de produit de cuisson pour un appareil de cuisson à vapeur ainsi qu'appareil de cuisson à vapeur doté d'un tel support de produit de cuisson
EP2428735A3 (fr) * 2010-09-13 2014-07-02 Rational AG Appareil de cuisson doté d'un générateur de vapeur et procédé de réglage d'un générateur de vapeur pour un appareil de cuisson
CN109556140A (zh) * 2018-12-18 2019-04-02 成都前锋电子有限责任公司 一种方便清洗、易调节且节能环保的灶具
IT201800003098A1 (it) * 2018-02-27 2019-08-27 Smeg Spa Forno per la cottura di cibi
EP3680561A1 (fr) * 2019-01-14 2020-07-15 Koninklijke Philips N.V. Appareil de guidage de l'eau et générateur de vapeur comprenant un tel appareil
US10724743B2 (en) 2014-09-04 2020-07-28 Electrolux Appliances Aktiebolag Household oven with an integrated water evaporator
US10955142B2 (en) 2018-07-03 2021-03-23 Electrolux Home Products, Inc. Cooking oven with steam generator inside cooking cavity
US10969118B2 (en) 2016-05-26 2021-04-06 Electrolux Home Products, Inc. Steam cooking appliance

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639725A (en) * 1971-03-03 1972-02-01 Thomas J Maniscalco Steam-generating apparatus
US4049948A (en) * 1975-04-10 1977-09-20 Still-Man Mfg. Company Oven having an electric heating element with a hinged support
DE7821203U1 (de) * 1977-07-18 1979-01-18 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Dampfapparat fuer einen grill
EP0279065A2 (fr) * 1987-02-06 1988-08-24 Electrolux-Juno Küchentechnik GmbH Dispositif de commande de vapeur dans un appareil de fermentation à vapeur
WO2003091646A2 (fr) * 2002-04-23 2003-11-06 Cleveland Range, Inc. Procede et four a vapeur et plaque collectrice
EP1475018A1 (fr) * 2003-05-07 2004-11-10 Samsung Electronics Co., Ltd. Appareil de cuisson
EP1550828A1 (fr) * 2003-12-30 2005-07-06 Samsung Electronics Co., Ltd. Cuisinière à chauffage avec générateur de vapeur
US20070199932A1 (en) * 2006-02-15 2007-08-30 Cleveland Range Boilerless steaming oven and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639725A (en) * 1971-03-03 1972-02-01 Thomas J Maniscalco Steam-generating apparatus
US4049948A (en) * 1975-04-10 1977-09-20 Still-Man Mfg. Company Oven having an electric heating element with a hinged support
DE7821203U1 (de) * 1977-07-18 1979-01-18 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Dampfapparat fuer einen grill
EP0279065A2 (fr) * 1987-02-06 1988-08-24 Electrolux-Juno Küchentechnik GmbH Dispositif de commande de vapeur dans un appareil de fermentation à vapeur
WO2003091646A2 (fr) * 2002-04-23 2003-11-06 Cleveland Range, Inc. Procede et four a vapeur et plaque collectrice
EP1475018A1 (fr) * 2003-05-07 2004-11-10 Samsung Electronics Co., Ltd. Appareil de cuisson
EP1550828A1 (fr) * 2003-12-30 2005-07-06 Samsung Electronics Co., Ltd. Cuisinière à chauffage avec générateur de vapeur
US20070199932A1 (en) * 2006-02-15 2007-08-30 Cleveland Range Boilerless steaming oven and method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390579A1 (fr) * 2010-05-28 2011-11-30 Electrolux Home Products Corporation N.V. Réservoir d'eau pour cavité de four d'un four de cuisson
EP2428735A3 (fr) * 2010-09-13 2014-07-02 Rational AG Appareil de cuisson doté d'un générateur de vapeur et procédé de réglage d'un générateur de vapeur pour un appareil de cuisson
EP2433526A1 (fr) * 2010-09-23 2012-03-28 BSH Bosch und Siemens Hausgeräte GmbH Support de produit de cuisson pour un appareil de cuisson à vapeur ainsi qu'appareil de cuisson à vapeur doté d'un tel support de produit de cuisson
CN102406452A (zh) * 2010-09-23 2012-04-11 Bsh博世和西门子家用电器有限公司 用于蒸煮器的煮物架以及带有这种煮物架的蒸煮器
US10724743B2 (en) 2014-09-04 2020-07-28 Electrolux Appliances Aktiebolag Household oven with an integrated water evaporator
US10969118B2 (en) 2016-05-26 2021-04-06 Electrolux Home Products, Inc. Steam cooking appliance
US11852351B2 (en) 2016-05-26 2023-12-26 Electrolux Home Products, Inc. Steam cooking appliance
IT201800003098A1 (it) * 2018-02-27 2019-08-27 Smeg Spa Forno per la cottura di cibi
EP3531028A1 (fr) * 2018-02-27 2019-08-28 SMEG S.p.A. Four de cuisson pour aliments
US10955142B2 (en) 2018-07-03 2021-03-23 Electrolux Home Products, Inc. Cooking oven with steam generator inside cooking cavity
CN109556140A (zh) * 2018-12-18 2019-04-02 成都前锋电子有限责任公司 一种方便清洗、易调节且节能环保的灶具
CN109556140B (zh) * 2018-12-18 2023-11-24 成都前锋电子有限责任公司 一种方便清洗、易调节且节能环保的灶具
EP3680561A1 (fr) * 2019-01-14 2020-07-15 Koninklijke Philips N.V. Appareil de guidage de l'eau et générateur de vapeur comprenant un tel appareil
WO2020148261A1 (fr) * 2019-01-14 2020-07-23 Koninklijke Philips N.V. Appareil de guidage d'eau

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