EP0503038B1 - Ensemble de cuisson pour cuisiniere ou table de cuisson, comportant au moins un generateur de chaleur integre - Google Patents

Ensemble de cuisson pour cuisiniere ou table de cuisson, comportant au moins un generateur de chaleur integre Download PDF

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Publication number
EP0503038B1
EP0503038B1 EP91917312A EP91917312A EP0503038B1 EP 0503038 B1 EP0503038 B1 EP 0503038B1 EP 91917312 A EP91917312 A EP 91917312A EP 91917312 A EP91917312 A EP 91917312A EP 0503038 B1 EP0503038 B1 EP 0503038B1
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EP
European Patent Office
Prior art keywords
cooking
fact
heat generator
assembly according
moving
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 - Lifetime
Application number
EP91917312A
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German (de)
English (en)
French (fr)
Other versions
EP0503038A1 (fr
Inventor
Georges Le Strat
Michel Lefebvre
Michel Emont
Bernard Logel
Robert Strasser
Claude Valentin
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DE DIETRICH EUROPEENNE D'ELECTROMENAGER
Butagaz SAS
Original Assignee
DE DIETRICH EUROPEENNE D'ELECTROMENAGER
DIETRICH EUROP ELECTROMENAGER
Butagaz SAS
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Priority to AT91917312T priority Critical patent/ATE100563T1/de
Publication of EP0503038A1 publication Critical patent/EP0503038A1/fr
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Publication of EP0503038B1 publication Critical patent/EP0503038B1/fr
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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
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on 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
    • F24C3/12—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
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/105—Porous plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/20—Burner material specifications metallic
    • F23D2212/201—Fibres

Definitions

  • the present invention relates to a cooking assembly for a stove or hob, of the type comprising a hob and at least one integrated heat generator making it possible to heat a container without being directly in contact with it.
  • Cooking sets using gas, natural or LPG burners have been known for a long time with the advantages they provide (flexibility, low inertia, immediate visibility of the settings), but also with their drawbacks (presence of a shaped grill frame, whose frequent cleaning is necessary, and whose aesthetic seems more and more outdated, even with the recent use of a molded glass plate on which the gas burners are placed, as illustrated for example in the documents US-A-3,592,180 and US-A-3,597,135).
  • Cooking assemblies using electric resistance plates have also been known for a long time, using no frame-shaped grate since the containers to be heated are placed directly on the heating plates, but with their drawbacks (high inertia, and adjustment difficult to view).
  • the object of the invention is to design a cooking assembly, the design of which makes it possible to obtain the main advantages of the most recent electric cooking plate systems, while avoiding the drawbacks of known techniques as regards their inertia and their safety. .
  • the invention also aims to allow, if desired, the use of gas burners, with the specific advantages of gas, and without limitation as to the type of burner used.
  • the object of the invention is also to design a cooking assembly allowing the use of a glass-ceramic cooking plate, without having the risk of excessive heating of said plate, and without confinement of atmosphere under it.
  • a cooking assembly for stove or hob comprising a cooking plate and at least one heat generator making it possible to heat a container without being directly in contact with it, characterized by the fact that the hob has an opening associated with each heat generator and allowing a direct action of said generator through said opening when the corresponding heat generator is used, said heat generator being integrated in a well disposed under the hob, coaxially to the associated opening, and by the fact that retractable closing means are associated with each opening, said retractable closing means comprising a movable cover closing the associated opening when said heat generator is not used, said cover being movable by motorized means of displacement between an ob position turation in which the heat generator is hidden, said cover then flush with the upper plane of said cooking plate, and a retracting position in which said heat generator is unmasked for use.
  • the cooking plate and the movable cover (s) are made of glass ceramic or molded glass, or else of a solid material consisting of mineral substances coated with a binder of organic polymer.
  • the movable cover is in the form of a circular or oval cup, the upper face of which is flush with the upper plane of the cooking plate when said cover is in the closed position.
  • the movable cover has a beveled lateral edge, and preferably conical, cooperating with the homologous inner edge of the associated opening when said cover is in the closed position; in particular, the lateral edge of the movable cover has a cylindrical upper part on which a high temperature resistant seal is threaded.
  • the motorized means of displacement carry out a vertical displacement of the movable cover when the latter is in line with the associated opening, and a horizontal displacement of said movable cover below the cooking plate. when the latter is released from said associated opening.
  • the motorized displacement means are common to several movable lids, and comprise a common support assembly to which said movable lids are secured, said common support assembly being movable in rotation in a horizontal plane, around a vertical axis, and movable in translation along said vertical axis.
  • the motorized displacement means comprises an electromagnet ensuring the vertical translation of the common support assembly, and a motor ensuring the rotation of said support assembly in a horizontal plane by means of an associated transmission, such as a gear or belt transmission; it is also possible to provide that the common support assembly is equipped with a clutch system making it possible to set in motion a single movable cover in the group of covers concerned.
  • the motorized displacement means are associated individually with each movable cover, and comprise an individual support assembly on which the associated movable cover is mounted, said individual support assembly being movable in translation along a vertical axis, and movable in translation or in rotation in a horizontal plane.
  • each movable cover is mounted on an articulated arm disposed on a sliding carriage actuated by an associated motor, so that said movable cover is displaceable in vertical translation by tilting of said arm, and displaceable in horizontal translation by sliding said carriage; in particular, the pivoting of the articulated arm is ensured by a fixed stop for the raising of the movable cover, and by a return spring connected to the sliding carriage for the descent of said movable cover.
  • each movable cover is mounted on a horizontal oscillating arm mounted by a nut on a vertical threaded rod, eccentric with respect to the associated opening, and whose rotation is ensured by an associated motor, the screw-nut system thus formed being capable of frictionally driving said horizontal oscillating arm for pivoting thereof when said movable cover is released from said associated opening.
  • the well in which the heat generator is integrated coaxially supports a vertically movable chimney while remaining under the cooking plate, said chimney being movable between a low position in which it allows the passage of the movable cover during the horizontal displacement thereof, and a high position in which it closes the space surrounding said heat generator.
  • the well in which the heat generator is integrated coaxially supports a retractable support grid capable of passing through the associated opening, said grid being movable vertically between a low position in which it allows the passage of the movable cover during the horizontal displacement thereof, and a high position in which it protrudes from the upper plane of the cooking plate so as to provide support for the container to be heated.
  • the movable chimney and / or the retractable support grid is connected to the well by a system of inclined ramps allowing their vertical displacement by a relative rotation with said well; in particular, the retractable support grid is placed freely on the movable chimney, and the movable chimney is placed freely on the well which is fixed, the vertical movement of the movable assembly constituted by said grid and said chimney being provided by a motor causing the chimney to rotate about the axis of said fixed well.
  • the well in which the heat generator is integrated has, in the vicinity of its periphery, an annular channel constituting a retention volume for overflows.
  • the mobile chimney has an inner flange of support on which the retractable support grid is placed, said flange ending in a free converging lower edge to channel the overflows in the annular channel.
  • the heat generator is detachably fixed in the associated well to facilitate access to said well for cleaning; in particular, the heat generator is screwed or clipped onto the base of the well, at the level of an internal collar of said well which delimits the air-gas mixture supply chamber.
  • the heat generator is a natural gas or LPG burner; in particular, the heat generator is a radiant burner or a fibrous or porous burner, ceramic or metallic, each burner preferably being supplied with air by an associated fan, this air inducing the gas necessary for making the mixture via a venturi at the neck from which the gas is injected.
  • the heat generator can be an electric generator, of the Joule effect type, or with halogen lamps.
  • the cooking assembly for stove or hob which will be described is of the type comprising a cooking plate and at least one heat generator making it possible to heat a container without being directly in contact with it.
  • the cooking assembly comprises a cooking plate having an opening associated with each heat generator and allowing direct action of said generator by said opening when the corresponding heat generator is used, and retractable closure means comprising a movable cover are associated with each opening, closing said opening when the corresponding heat generator is not used, then flush with the upper plane of said cooking plate, and unmasking said opening when said generator heat should be used.
  • FIG. 1 and 2 Such an arrangement is illustrated in Figures 1 and 2, where there is a cooking plate 1 having an opening 4 associated with a heat generator 200 which is integrated in a fixed well 201, for example being fixed by means of a support 204 connecting to the bottom 206 of the well 201; the closing means comprise a movable cover 203 closing the associated opening 4 when the heat generator 200 is not used: the movable cover is displaceable, by means of motorized displacement means which will be described later, between a position shutter ( Figure 2) in which the heat generator is hidden, and a retracting position (Figure 1) in which said heat generator is unmasked for use.
  • the well 201 must allow the passage of the movable cover 203, and for this purpose has a lateral opening 202, which relates to part or all of the periphery of the well 201.
  • the arrows indicated in phantom in Figure 1 are intended to make it clear that the movable cover 203 must be able to be moved on the one hand in a vertical translation parallel to the axis 10 of the associated opening 4, this in order to release the cover to release the opening 4 or, on the contrary, to close the said opening to mask the heat generator 200, and on the other hand in a lateral movement, essentially in a horizontal plane, when the movable cover is in the low position, this in order to completely unmask the burner 200, or on the contrary to bring the cover back to the right of its housing for closing the opening 4.
  • the baking sheet 1 can serve as a direct support for the container to be heated, which nevertheless requires in this case to provide an opening 4 whose size is compatible with the smallest container and a discharge of combustion gases.
  • Such a solution is elegant insofar as it makes it possible to avoid providing a support grid for the container to be heated; on the other hand, for the most powerful burners, it may pose a pfd problem.
  • the cover (s) 203 can be in the most diverse forms but, for obvious reasons of efficiency, contact between the combustion products and the receptacles must be encouraged, so that a circular or oval shape will be required in the practice. A more elongated shape, substantially oval, may prove to be particularly advantageous for particular applications (fish dishes, grills, etc.).
  • These covers will advantageously be made with the same material as that constituting the hob, that is to say for example in molded glass or glass ceramic, or in a solid material formed by mineral substances coated with a binder of organic polymer, provided naturally that this material is sufficiently resistant mechanically and thermally.
  • FIGS. 3a and 3b illustrate particular examples of cups with bevelled lateral edge, with, for FIG. 3b, a seal assembly. It is indeed advantageous to provide a good seal against water when the movable cover is in the closed position.
  • the movable cover 203 has a beveled lateral edge 207, preferably conical, cooperating with the homologous inner edge 5 of the associated opening 4 of the cooking plate 1 when said cover is in position shutter.
  • Such a solution is particularly advantageous in the case of a ceramic glass hob, molded glass, or made of agglomerated mineral substances, and it will then be advantageous to provide for a prowling of said facing faces, for more intimate contact. of these.
  • FIG. 3a illustrates particular examples of cups with bevelled lateral edge, with, for FIG. 3b, a seal assembly.
  • the lateral edge of the movable cover 203 has a cylindrical upper part 208, on which is threaded a seal 209 made of a material, such as an elastomer, resistant to temperatures. high.
  • a seal 209 made of a material, such as an elastomer, resistant to temperatures. high.
  • the homologous inner edge of the opening 4 of the cooking plate 1 will then have, in the extension of the aforementioned conical edge 5, a cylindrical part 6 so as to provide just sufficient crushing of the seal 209 when the seal 203 is in the closed position.
  • the cooking plate 1 and the cover (s) 203 are made of the same material, in particular glass ceramic, molded glass, or made of agglomerated mineral substances, as indicated above.
  • FIGS. 4 to 9 give by way of example an illustration of three types of motorized means of displacement.
  • the motorized displacement means are common to several movable lids 203 (here common to four movable lids), and comprise a common support assembly 210 to which are movable lids 203, said common support assembly being mobile in rotation in a horizontal plane, around a vertical axis, and mobile in translation along said vertical axis.
  • the common support assembly 210 thus has a branch 211 associated with each of the lids concerned 203, these branches meeting at a vertical portion 212 constituting the aforementioned vertical axis of the common support assembly.
  • An electromagnet 213 can ensure vertical translation, and a motorized device 214 realizes the rotation of the support assembly 210: this device can be a motor which makes it possible to ensure the rotation of said support assembly in a horizontal plane by l 'via an associated transmission, such as a gear or belt transmission. In this case, all the movable lids 203 are released at the same time.
  • This solution has the advantage of simplicity, but it is true that it does not perfectly protect the cooking assembly in the event of an overflow on one of the burners in operation reaching up to the burners at a standstill which can thus be wet and / or soiled.
  • the common support assembly 210 may prove advantageous to equip the common support assembly 210 with a clutch system making it possible to set in motion a single movable cover 203 in the group of covers concerned. It goes without saying that the cooking assembly will be equipped with electronic control and synchronization means, so as to produce, according to a predetermined sequence, the movement of the movable cover (s) 203 during the operating control of one or more several heat generators 200, the ignition of which can only occur after complete erasure of the mobile cover (s) concerned.
  • FIGS. 6 and 7 on the one hand, and in FIGS. 8 and 9 on the other hand, relate to the case of motorized means of displacement associated individually with each movable cover 203.
  • the means then comprise an individual assembly support on which is mounted the associated movable cover, said individual support assembly being movable in translation along a vertical axis, and movable in translation or in rotation in a horizontal plane.
  • each movable cover 203 is mounted on an articulated arm 215 arranged on a sliding carriage 217 actuated by an associated motor, so that the movable cover 203 is displaceable in vertical translation by tilting the arm articulated 215, and is movable in horizontal translation by displacement of the carriage 217.
  • the arm 215 is articulated by a pivot 216 on the carriage 217, and a return spring 220 tends to return the articulated arm 215 in a tilted position corresponding to a position bottom of the movable cover 203 ( Figure 7).
  • the carriage 217 evolves, on a horizontal or inclined ramp, and laterally comprises a rack 217 'meshing with a pinion 218 secured to the output shaft of a control motor (not shown here). It should be noted that there is a cam 219 associated with the articulated arm 215, and two end stops 221 and 222 (here represented by arrows) associated with the sliding carriage 217.
  • the movable cover 203 When the movable cover 203 is in position shutter ( Figure 6), the articulated arm 215 is in contact with the associated cam 219, and it is thus held in an essentially vertical position against the action of return spring 220, and the carriage 217 is in turn in support against the end of travel stop 221.
  • the motor controls the retraction of the sliding carriage 217, which automatically causes the articulated arm 215 to tilt, and achieves thus the retraction of the movable cover 203, thanks to the action of the return spring 220, and the sliding carriage can then move back to its position of support against the end-of-travel stop 222 which guarantees the complete retraction of the movable cover 20 3, as illustrated in FIG. 7.
  • the limit stop 222 can serve as a control contact for the electronic control of the heat generator 200, and the two stops 221 and 222 preferably also serve as a contact for stopping the motor supply associated with the movement of the sliding carriage 217.
  • each movable cover 203 is arranged on a horizontal oscillating arm 223 mounted by a nut 224 on a vertical threaded rod 225, which is eccentric relative to the associated opening 204, and whose rotation is ensured by an associated motor 226 placed on a bottom F of the cooking assembly.
  • the screw-nut system thus formed must be capable of frictionally driving the horizontal oscillating arm 223 for the pivoting thereof, when the movable cover 203 has just been or is released from the associated opening 4.
  • the change of position is made by the activation of the motor 226, which controls the rotation of the threaded rod 225, which begins with lower the horizontal arm 223, until the movable cover 203 is completely disengaged from the associated opening 4 of the cooking plate 1.
  • the friction drive obtained by the screw-nut system then continues the descent of the arm horizontal 223, and further performs the pivoting of said arm until the retracting position is reached ( Figure 9).
  • An axial limit stop system 227 (here represented by an arrow) is then provided to control the stopping of the actuating motor 226. To return to the closed position, the motor 226 is actuated to turn in the opposite direction.
  • the threaded rod ensures both the vertical movement and the rotation of the associated cover; it is however possible, according to a variant not illustrated here, to ensure vertical displacement by a cam system and inclined ramp, rotation being in turn ensured by a vertical rod similar to the preceding threaded rod.
  • FIG. 10a illustrates a variant in which the fixed well 201, in which the heat generator 200 is integrated, coaxially supports a chimney 230 movable vertically while remaining under the cooking plate 1, said chimney being movable between a position low on which it allows the passage of the movable cover 203 during the horizontal movement thereof, and a high position in which it closes the space surrounding said heat generator.
  • the movable chimney 230 can close, in the high position, the opening 205 associated with the passage of the movable cover 203, which prevents, in the event of a large overflow, that the liquid reaches this opening, and then invades the lower zone. reserved for the drive mechanism.
  • the movement of the movable chimney 230 can be controlled by any means, and a system by inclined ramp (not shown here) associated with the fixed well 201 which supports it will be preferred.
  • FIG. 10b illustrates another variant in which the well 201, in which the heat generator 200 is integrated, coaxially supports a retractable support grid 240 capable of passing through the associated opening 4: the support grid 240 is vertically movable between a low position in which it allows the passage of the movable cover 203 during the horizontal displacement thereof, and a high position in which it protrudes from the upper plane P of the cooking plate 1, so as to provide support for the container to be heated.
  • This solution makes it possible to easily cope with the case of a container to be heated of small diameter, that is to say of a diameter smaller than that of the associated opening 4 of the cooking plate 1, while making it possible to maintain the container above the heat generator 200.
  • the retractable support grid 240 is also advantageous even when the container to be heated has a diameter greater than that of the associated opening 4, insofar as it makes it possible to facilitate considerably the evacuation of combustion products, and thus optimally benefit from the energy supply by convection.
  • the retractable support grid 240 is mounted on the movable chimney 230, which is connected to the well 201 by a system of inclined ramp allowing an overall vertical movement by a relative rotation with said well.
  • a protruding stud 232 carried by the movable chimney 230, said stud penetrating into a lumen 231 comprising an inclined portion, which is formed in the lateral surface of the fixed well 201.
  • heat generators are compatible with very diverse types of heat generators.
  • all types of heat generators are suitable provided that they offer the qualities of performance, combustion hygiene, and size required. Mention may be made of "daisy" burners (natural gas or LPG), ceramic radiant burners (natural gas or LPG), blue radiant combination burners (natural gas or LPG), ceramic fiber burners (natural gas or LPG), and metal fiber burners (natural gas or LPG). It goes without saying that one can also use electric generators with Joule effect, or with halogen lamps.
  • metal fiber radiant burners are a preferred solution since a significant part of the energy (20 to 30%) is directly transmitted in radiant form, which considerably improves the cooking efficiency of such burners.
  • the metal fiber material also has very low thermal inertia due to the conductivity of the fibers and the high porosity. The amount of heat accumulated is small, and it is very easily restored.
  • the entire surface in contact with the combustion products should offer the same quality: an insulating coating resistant to high temperature can then constitute an acceptable solution when the fibrous material does not cover all the burner surface.
  • Such metallic fibrous burners can operate either in radiant mode (surface combustion incandescent carrying the most superficial fibers), or in blue flame mode when the speed of circulation of the air-gas mixture in the porous medium becomes greater than the speed of flame propagation of the same mixture. To obtain this operating mode, it is possible either to increase the surface power admitted to the burners, or to decrease the propagation speed by modifying the air / gas ratio.
  • Such burners In radiant mode, such burners emit little NOx oxides (20 to 40 ppm in stoichiometric combustion for 200 to 400 ppm in a conventional burner).
  • metallic fibers made from a material sold under the brand name FECRALLOY® of 22 microns in diameter and 4 mm in length, these fibers being randomly arranged parallel to the support plane and then compressed and sintered to provide a material with a porosity of between 80 and 85%, and an extremely low variation in porosity.
  • the finished material is then in the form of a layer with a thickness of between 1 and 4 mm, a thickness of 2 mm having a cost / performance compromise giving entirely satisfaction.
  • FIG. 11 illustrates a radiant burner of this type, which burner 200 comprises a burner body 250 supporting a thickness of fibrous material 252 closing the air-gas mixing chamber 251.
  • the fibrous metal layer 252 is fixed to the body 250 by all medium, for example, as shown here, by a crimping ring 253, here in a T-shaped section, one wing of which covers the edge of the opening 4 of the cooking plate 1, with the interposition of a flat seal 253 ', for example in silicone, guaranteeing the flexibility required for mounting and a perfect seal against overflows.
  • compression can be used by screwing on the cover, bonding with ceramic glue, riveting, stapling, or screwing.
  • FIG. 12 schematically illustrates an advantageous mode of supplying a radiant burner of the aforementioned type.
  • a gas supply line 300 is thus distinguished, equipped with a regulator 301, and opening into a venturi 302; the air is supplied by a pipe 304 by means of a fan 303.
  • each radiant burner 200 is supplied with air by an associated fan 303, and the air (produced by the associated venturi 302) induced via the venturi at level of the neck thereof the gas necessary for the preparation of the mixture.
  • the gas pressure is regulated by the associated regulator 301, which is preferably controlled, by means of a loop 305, by the pressure of the air-gas mixture which is finally brought by the line 306 to the radiant burner 200.
  • the fan control 303 which makes it possible to vary the air flow and therefore the power of the burner, can be done by an associated electric variator: this makes it possible to eliminate the presence of electric or electro-mechanical actuators, and to equip all of cooking sensitive touches.
  • FIGS. 13 to 21 which will now be described illustrate a complete embodiment with a heat generator integrated in a fixed well and with movable cover, with sliding chimney and support grid placed freely on said chimney.
  • FIG. 13 a number of members which have already been described above, including the motorized means of movement associated with the movable cover 203, which here conform to the variant illustrated in FIGS. 8 and 9. These means, assigned the same references, will therefore not be described again.
  • the well 201 has, in the vicinity of its periphery, an annular channel 248 constituting a retention volume for overflows.
  • This annular channel 248 is defined by an outer ring 235 and an inner ring 247, the outer ring 235 serving to directly support the sliding chimney 230, and the inner ring 247 serving to ensure the maintenance of the heat generator 200.
  • the well 201 has an opening 255 below serving for the admission of the air-gas mixture, said opening, arranged in a radial direction towards the axis 10, opening into a central chamber 249 which communicates with the interior chamber 257 of the heat generator 200.
  • the heat generator 200 is held by its base flange 256, while being supported on a shoulder 258 of the well 201, inside the interior flange 247 of said well.
  • the heat generator 200 is detachably fixed in the associated well 201 to facilitate access to said well for cleaning.
  • the heat generator 200 will for example be screwed or clipped onto the base of the well, at the level of the inner flange 247 of said well which delimits the supply chamber of the air-gas mixture.
  • the heat generator 200 which is of the radiant burner type with a fibrous metallic structure, comprises a fibrous metallic layer 252, here held by crimping thanks to a flap of the upper flange of the body 250 which locally crushes the periphery of the fibrous layer 252, said layer resting on a rigid ring 259 forming a spacer, preferably made of metal, housed in the burner body 250.
  • the outer ring 235 has an upper edge with a system of inclined ramps: there are thus successively, and angularly distributed, high horizontal portions 260, inclined ramps 262, and low horizontal portions 261.
  • the angular distribution of these different portions will be defined by the angles e0, e1, e2, respectively associated with the portions 260, 261 and 262: angles e0 and e1 equal to 30 ° are preferably chosen, and an angle e2 equal to 60 °.
  • the geometry of the upper edge of this outer ring is naturally adapted to the homologous geometry of the chimney it supports, as will be explained below with reference to FIGS. 16 to 18.
  • the chimney 230 has an outer ring 233 and an inner ring 234, the outer ring having a surface 236 capable of being driven by a roller or a gear 237 mounted on the output shaft 238 of a drive motor 239 (FIG. 13 ).
  • the crown interior 234 of the chimney 230 has an inclined edge 246 ( Figure 16) for supporting the grid 240, said grid being placed freely on the movable chimney 230.
  • the inner surface or support flange 246 on which the retractable support grid 240 is placed ends with a converging free lower edge 280 to channel the overflows in the annular channel 248 of the well 201.
  • the chimney 230 also has, between its rings 233 and 246 , a bearing edge associated with the fixed well, having high horizontal portions 270, low horizontal portions 271, and inclined portions 272, these portions being naturally homologous with the corresponding portions provided on the well 201.
  • the actuation of the motor 239 controls the rotation of the chimney 230 about the axis 10, in one direction or the other, and consequently the raising or lowering of said chimney and of the retractable support grid that she supports.
  • the retractable support grid 240 is here produced in the form of two coaxial rings 242, for example produced from a metallic wire of round section of approximately 2 mm, which are held by radial sectors 241, 241 ', said sectors having notches 243 and 244 associated with the passage of these two rings.
  • the radial sectors 241 and 241 ' here of different length, have an external facet 245 on the outside, the inclination (angle e) of which is for example of the order of 12 °, this inclination being naturally chosen in relation with the shape of the support flange 246 provided on the chimney 230.
  • FIG. 22 another possible form is illustrated in FIG. 22, the grid 240 then being in the form of petals, and produced from of a curved profile.
  • the contour here includes an inner circle 265, from which project a plurality of petals (here three petals) each of the petals being defined by two radial branches 266 and a circular branch 267 connecting said radial branches.
  • the curved profile constituting the contour line may be of any section, in particular circular or polygonal.
  • this makes it possible to adapt the diameter of the openings 4 of the cooking plate 1 to the power of the heat generator 200 used.
  • This solution thus allows a better distribution of heat, and the respective powers of the heat generators are directly accessible to the user. This allows in particular to widen the heating surface to avoid attack points on the containers to be heated, and to obtain a perfect match of the power to the heating surface.
  • Joule effect electric generators with halogen lamps, integrated in the fixed well 201.
  • Joule effect electric generators it may prove to be advantageous to provide a fan to pulsate the air through a heating resistor: it will then be necessary to adapt the power supplying the resistance and the speed of the fan to modulate the power of the generator.
  • the direct heating of the container by halogen lamps undoubtedly improves the efficiency, and eliminates the thermal inertia when the lamps are no longer supplied.
  • the halogen lamps will in this case preferably be placed on the periphery of the well, to escape thermal shocks due to projections.
  • the preparation of the air-gas mixture it is possible to use a device for inducing air by the gas, provided however, in the case of a burner integrated in the fixed well, to ensure a supply sufficient secondary air. It is also possible to use blown air, with a centralized air supply and a decentralized preparation of the air-gas mixture, as described above with regard to the figure 12. In this case, a fan will supply each of the burners individually, and each burner will be equipped with its own pressure reducer to avoid pressure variations depending on the number of burners in operation.
  • the air and the gas can be supplied by two valves controlled in parallel, in order to provide the desired mixture over the entire operating range: as a variant, the air will induce, by an associated venturi, the gas necessary for making the mixture, the gas pressure then being regulated by a pressure regulator controlled by the air pressure downstream of the venturi, and the gas being injected at the level of the neck of said venturi, as described above with reference to FIG. 12.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Gas Burners (AREA)
  • Cookers (AREA)
  • Electric Stoves And Ranges (AREA)
EP91917312A 1990-10-01 1991-09-26 Ensemble de cuisson pour cuisiniere ou table de cuisson, comportant au moins un generateur de chaleur integre Expired - Lifetime EP0503038B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91917312T ATE100563T1 (de) 1990-10-01 1991-09-26 Anlage zum kochen fuer kochherd oder kochplatte, mit wenigstens einem integrierten waermeerzeuger.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9012060 1990-10-01
FR9012060A FR2667384A1 (fr) 1990-10-01 1990-10-01 Ensemble de cuisson pour cuisiniere.

Publications (2)

Publication Number Publication Date
EP0503038A1 EP0503038A1 (fr) 1992-09-16
EP0503038B1 true EP0503038B1 (fr) 1994-01-19

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Family Applications (2)

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EP91917312A Expired - Lifetime EP0503038B1 (fr) 1990-10-01 1991-09-26 Ensemble de cuisson pour cuisiniere ou table de cuisson, comportant au moins un generateur de chaleur integre
EP91917545A Expired - Lifetime EP0504355B1 (fr) 1990-10-01 1991-09-26 Ensemble de cuisson pour cuisiniere ou table de cuisson, comportant au moins un bruleur a gaz

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91917545A Expired - Lifetime EP0504355B1 (fr) 1990-10-01 1991-09-26 Ensemble de cuisson pour cuisiniere ou table de cuisson, comportant au moins un bruleur a gaz

Country Status (9)

Country Link
US (2) US5313049A (es)
EP (2) EP0503038B1 (es)
JP (2) JPH05503766A (es)
AT (1) ATE115268T1 (es)
AU (2) AU8658991A (es)
DE (2) DE69105714D1 (es)
ES (2) ES2048598T3 (es)
FR (1) FR2667384A1 (es)
WO (2) WO1992006335A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233470A1 (de) * 1992-10-05 1994-04-07 Bosch Siemens Hausgeraete Kochmulde
FR2710726B1 (fr) * 1993-09-30 1999-08-27 Butagaz Brûleur radiant à gaz pour cuisinière ou table de cuisson.
DE59400190D1 (de) * 1994-05-24 1996-05-15 Kolja Kuse Arbeitsplattenkochfeld
FR2735562B1 (fr) * 1995-06-19 1997-08-14 Eurokera Plaque de cuisson au gaz en vitroceramique et procede pour sa fabrication
AU1030897A (en) * 1995-12-04 1997-06-27 Aktiebolaget Electrolux A resistive heating element for a cooker
DE19754235C2 (de) * 1997-07-01 2001-11-15 Fct Systeme Der Strukturkerami Verfahren zur Herstellung eines Kochfeldes mit mindestens einer eingesetzten Kochplatte aus Keramik und Kochfeld mit Kochplatte, das nach dem Verfahren hergestellt ist
IL138237A (en) 2000-09-04 2008-12-29 Stryker Gi Ltd Double sleeve endoscope
US6807962B2 (en) * 2002-01-28 2004-10-26 Schott Glas Kitchen gas cooking stove with a glass-ceramic, glass, or ceramic top, a gas cooktop with a glass-ceramic, glass, or ceramic top, and a glass-ceramic, glass, or ceramic top of a cooking stove or cooktop with a venting structure thereon
US7011300B2 (en) * 2003-10-02 2006-03-14 National Environmental Products, Ltd. Steam humidifier and method
ITTO20050685A1 (it) * 2005-09-30 2007-04-01 Indesit Co Spa Piano di cottura con bruciatore a gas comprendente un elemento semipermeabile
US7766005B2 (en) * 2006-01-20 2010-08-03 Lg Electronics Inc. Gas radiation burner and controlling method thereof
DE102007043259A1 (de) * 2007-09-11 2009-03-12 BSH Bosch und Siemens Hausgeräte GmbH Gaskochfeld
DE102008059789A1 (de) * 2008-12-01 2010-06-02 Wamsler Haus- und Küchentechnik GmbH Kochfeld zum Anordnen über einem Wärmeerzeuger
NL2003212C2 (nl) * 2009-07-16 2011-01-18 Rvs Werken B V Brandermodule voor een fornuis, een fornuis en werkwijze voor het vervaardigen daarvan.
JP5770555B2 (ja) * 2011-07-26 2015-08-26 大阪瓦斯株式会社 コンロ
JP5770554B2 (ja) * 2011-07-26 2015-08-26 大阪瓦斯株式会社 ガスコンロ

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR961869A (es) * 1950-05-24
DE84393C (es) *
US7099A (en) * 1850-02-19 Lid for boiler-holes of cooking-stoves
US882040A (en) * 1906-12-20 1908-03-17 James R Windsor Chocolate-warming table.
US874295A (en) * 1907-02-02 1907-12-17 Achill Walter Brand Top for ranges.
FR469842A (fr) * 1914-03-17 1914-08-12 Richard Hadammoeck Dispositif de fermeture et d'ouverture des orifices de cuisson pratiqués dans les plaques des fourneaux de cuisine
DE545522C (de) * 1929-05-01 1932-03-03 Erwin Weischet Vorrichtung zur Bewegung und Unterbringung der Herdringe unterhalb der Herdplatte
US2045061A (en) * 1931-10-30 1936-06-23 Cleveland Co Operative Stove C Stove or range
US2105596A (en) * 1936-09-17 1938-01-18 Tappan Stove Co Gas range
US2439133A (en) * 1943-11-11 1948-04-06 Jenkins Francis John Combined table and electrically heated hot plates
US2548032A (en) * 1948-10-25 1951-04-10 Phillips Petroleum Co Process for increased olefin recovery in a petroleum refinery
US2761054A (en) * 1953-01-08 1956-08-28 Locher Oskar Electric cooker for large kitchens
US3027936A (en) * 1958-03-12 1962-04-03 Whirlpool Co Gas burner
US3468298A (en) * 1967-01-23 1969-09-23 Columbia Gas Syst Gas stove
GB1262334A (en) * 1969-04-02 1972-02-02 Hikaru Naganuma Gas burner with flashback prevention arrangement
US3597135A (en) * 1969-04-30 1971-08-03 Inst Gas Technology Gas burner structure
US3592180A (en) * 1969-05-05 1971-07-13 Inst Gas Technology Gas burner device
FR2159689A5 (es) * 1971-11-09 1973-06-22 Equip Menager Cie Gle
FR2253406A7 (en) * 1973-11-30 1975-06-27 Candy Spa Lid for gas or electric cooker burners - which forms flush working surface when closed hinges up to expose burners
US4349713A (en) * 1980-02-19 1982-09-14 Herman Marsen Combined cooking and serving microwave apparatus
JPS57187512A (en) * 1981-05-13 1982-11-18 Masao Yoshizawa Combustion plate for infrared ray radiant heater
GB8405681D0 (en) * 1984-03-05 1984-04-11 Shell Int Research Surface-combustion radiant burner
US4569328A (en) * 1984-05-02 1986-02-11 Gas Research Institute Efficient, low emissions gas range cooktop
GB2185564A (en) * 1986-01-16 1987-07-22 Thorn Emi Appliances Pan support for cooking
US4689962A (en) * 1986-01-17 1987-09-01 The Boc Group, Inc. Process and apparatus for handling a vaporized gaseous stream of a cryogenic liquid
EP0407393A1 (de) * 1989-01-31 1991-01-16 Eku-Metallbau, Gastro-Grosskuchencenter Gasbrenner abgeschlossen und integriert auf einer herdplatte
JPH03194321A (ja) * 1989-12-25 1991-08-26 Toshiba Corp 加熱調理器の安全装置

Also Published As

Publication number Publication date
AU8658991A (en) 1992-04-28
EP0504355B1 (fr) 1994-12-07
DE69105714D1 (de) 1995-01-19
JPH05503766A (ja) 1993-06-17
US5313049A (en) 1994-05-17
FR2667384A1 (fr) 1992-04-03
WO1992006334A1 (fr) 1992-04-16
ES2066478T3 (es) 1995-03-01
ATE115268T1 (de) 1994-12-15
DE69101054D1 (de) 1994-03-03
EP0504355A1 (fr) 1992-09-23
JPH05503767A (ja) 1993-06-17
AU8619691A (en) 1992-04-28
WO1992006335A1 (fr) 1992-04-16
EP0503038A1 (fr) 1992-09-16
FR2667384B1 (es) 1995-05-05
ES2048598T3 (es) 1994-03-16
US5259361A (en) 1993-11-09

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