EP4155614A1 - Appareil de cuisson, en particulier appareil de cuisson industriel - Google Patents

Appareil de cuisson, en particulier appareil de cuisson industriel Download PDF

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Publication number
EP4155614A1
EP4155614A1 EP22196622.9A EP22196622A EP4155614A1 EP 4155614 A1 EP4155614 A1 EP 4155614A1 EP 22196622 A EP22196622 A EP 22196622A EP 4155614 A1 EP4155614 A1 EP 4155614A1
Authority
EP
European Patent Office
Prior art keywords
cooking appliance
appliance according
cooking
ring channel
housing
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.)
Pending
Application number
EP22196622.9A
Other languages
German (de)
English (en)
Inventor
Günter Wurdinger
Sebastian Siebert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welbilt Deutschland GmbH
Original Assignee
Welbilt Deutschland GmbH
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 Welbilt Deutschland GmbH filed Critical Welbilt Deutschland GmbH
Publication of EP4155614A1 publication Critical patent/EP4155614A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • 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
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • 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
    • F24C15/325—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation electrically-heated

Definitions

  • the invention relates to a cooking appliance, in particular in the form of a commercial cooking appliance, according to the preamble of claim 1.
  • Such a cooking appliance is from DE 103 51 476 B4 known.
  • This cooking appliance has an extremely complex construction, the reason for this complex construction being that in convection cooking appliances, in which the cooking chamber atmosphere is rotated essentially via the main blades of the fan, there is a negative pressure for sucking in fresh air via a fresh air duct using auxiliary blades rotating with the main blades and facing the same.
  • Due to the lack of space in such a cooking appliance it is not possible to place the windings of the fresh air duct in the cooking chamber, the interior of the cooking appliance near the impeller, where there are basically optimal pressure conditions, which according to the DE 103 51 476 B4 has the disadvantage that no maximum negative pressure is available as the driving force for sucking in the fresh air.
  • this hot air circulation device has a water supply pipe which is directed through an intake opening onto the fan impeller and whose outlet opening is directed radially offset to the axis of the fan impeller onto a surface arranged parallel to the intake opening, which forms a spray device, with this at a distance in front of the Level of the rear wall is arranged and has a surface area that is smaller than the suction opening and larger than the hub of the fan wheel.
  • the spray device is a disk which is arranged at a distance from the rear wall in front of the hub and is provided with additional recesses and/or deformations on its circumference.
  • the cooking appliance according to the invention is characterized in that a heating device is arranged in an annular channel and that a water injection nozzle is provided adjacent to this heating device.
  • the orientation of the water injection nozzle towards the heating device means that the water injection nozzle sprays the water to be injected directly onto the heating device, in particular when the water to be injected is swirled.
  • this results in the advantage of a good distribution of the water droplets and the advantage of a very efficient generation of steam.
  • the hot surfaces of the heater and the ring channel are on a side facing away from the customer, which makes it possible to easily remove any limescale that is caused by the evaporating water from these areas.
  • a further heating device could be provided which surrounds the fan wheel of the cooking appliance according to the invention.
  • pure steam can already be generated by the heating device in the annular channel, since the heating device in the annular channel has sufficient power to generate steam and advantageously does not heat the cooking chamber unnecessarily.
  • any lime only occurs in the area of this heating device in the ring channel.
  • the cooking appliance according to the invention can have only one heater within the ring channel, which can be regarded as a pure steam generator.
  • the construction of the cooking device according to the invention can accordingly replace more complex systems, in particular boilers. This saves component costs and installation space and thus reduces the size of the device and also increases the reliability of the cooking device according to the invention. For the safe use of boilers, level monitoring must be provided.
  • the area around the heating device in the ring channel can be separated as a chamber by a metal sheet or a steam chamber ring.
  • the resulting annular gap generates a high flow rate and good media distribution as well as good suction Fresh air when a fresh air regulating valve located in the fresh air intake duct before the water injection valve opens.
  • a steam chamber ring in the ring channel for optimal steam distribution and dehumidification.
  • a steam chamber ring can be arranged in such a way that it can be dismantled from the cooking chamber side.
  • the steam chamber ring can be provided with one or more water outlet openings in its lower area.
  • the ring channel with an engine mount and an engine stiffener.
  • FIG. 1 shows a representation of a cooking appliance 1 according to the invention, in particular in the form of a commercial cooking appliance.
  • the cooking appliance 1 has a housing 2 in which an openable and closable cooking chamber 3 is arranged.
  • a fan chamber 4 is arranged in the housing 2 , with a flow guide element 5 being arranged between the cooking chamber 3 and the fan chamber 4 .
  • the cooking appliance 1 has a fan 6, which includes a fan wheel 7, which is equipped with main blades for generating a cooking chamber flow and preferably with auxiliary blades can be provided for sucking in fresh air, which opens into a fresh air intake opening 11 of the housing 2 .
  • FIG. 12 also makes it clear that the cooking appliance 1 has a fan motor 10 which includes a drive shaft 12 which is drivingly connected to the fan wheel 7 .
  • annular channel 15 is provided, which is flow-connected to the fresh air intake opening 11 .
  • the cooking appliance 1 also has a heating device 9 which is arranged in the ring channel 15 .
  • a water injection nozzle 16 is also arranged in a transition area 24 of the fresh air intake duct 13 and is aligned with the heating device 9 , which is illustrated by the dashed lines emanating from the water injection nozzle 16 and impinging on the heating device 9 .
  • 1 1 shows that the transition area 24 leads to the ring channel 15 which is arranged concentrically around the drive shaft 12 , which means that the drive shaft 12 forms the central axis of the ring channel 15 .
  • the ring channel 12 is arranged behind the fan wheel 7, which means in other words that the ring channel 12 is arranged between the blower motor 10 and the fan wheel 7.
  • a feed channel 26 is provided with a pump 27, which opens in a nozzle 17, which in turn opens in the annular channel 15.
  • cleaning agent can be introduced into the ring channel.
  • the ring channel 15 also has an outlet 25 .
  • FIG 2 a second embodiment of the cooking appliance 1 according to the invention is shown, which in this case is provided with an optional further heating device 8, which is arranged in the fan chamber 4 of the cooking chamber 3 and thereby surrounds the fan wheel 6 and is therefore figure 2 illustrated particularly preferred embodiment is annular.
  • the cooking appliance according to figure 2 a fresh air intake duct 13 which merges into the annular duct 15 via a transition area 24 in this embodiment.
  • the water injection nozzle 16 is arranged in this transition region 24 and the nozzle 17 for cleaning agents is also provided in the fresh air intake duct.
  • a fresh air intake flap 18 is arranged in the fresh air intake duct 13 .
  • the arrow FL entering the fresh air intake duct 13 symbolizes the fresh air that has been sucked in, this arrow also showing the direction of flow R of the fresh air FL.
  • the nozzle 17 for cleaning agents is provided above the water injection nozzle 16 .
  • the arrows P illustrate the flow path of the sucked in fresh air FL through the ring channel 15 and through the fresh air intake opening 11 in order to get into the cooking chamber 3 . Otherwise corresponds to the embodiment of the cooking appliance 1 according to FIG figure 2 with regard to the features provided with the same reference numbers of those of figure 1 .
  • FIG. 3 shows an embodiment of the cooking appliance 1, the one according to 2 fully corresponds, so that in this respect reference can be made to the above description passages of the cooking appliance 1 .
  • FIG. 3 serves to illustrate a housing drain 14 with which the cooking appliance 1 according to the invention is usually provided.
  • a condenser 21 which is provided with an exhaust pipe 22.
  • FIG. 4 serves to illustrate an embodiment of the fan wheel 7, which is provided with auxiliary blades 19, which are arranged on the rear side of the fan wheel.
  • these auxiliary blades 19 blade sections 20 which extend into the annular channel 15.
  • This embodiment of the fan wheel 7 serves to further improve the air intake by increasing a negative pressure in the area of the drive shaft 12.
  • FIG 5 shows a fifth embodiment of the cooking appliance 1 according to the invention, which in turn corresponds to the embodiment in terms of its basic structure 2 corresponds, so that in this regard to the description of 2 can be referred to.
  • figure 5 illustrates the possibility of moving the blower motor 10 in the direction of the fan wheel 7 and the cooking chamber 3, which has the advantage of improved compactness of the cooking appliance 1 according to the invention results.
  • the space required for accommodating the fan motor 10 offset in the direction of the cooking chamber 3 is achieved by extending a peripheral wall 23 of the ring channel 15 .
  • the cooking appliance which in turn is designed in particular as a commercial cooking appliance, has no heating device 9 in the ring channel 15, but only the water injection nozzle 16 is provided in the ring channel 15 and that the evaporation of the water in the cooking chamber which is injected via the water injection nozzle 16 into the annular channel 15 via the heating device 8 in the cooking chamber 3 .
  • This embodiment would also give advantages in terms of water consumption and limescale as previously described.
  • the alternative embodiment described above has all the features of 2 , With the exception of the heating device 9, so that in this regard to the above description of 2 can be referred to.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)
EP22196622.9A 2021-09-23 2022-09-20 Appareil de cuisson, en particulier appareil de cuisson industriel Pending EP4155614A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021124685.7A DE102021124685A1 (de) 2021-09-23 2021-09-23 Gargerät, insbesondere gewerbliches gargerät

Publications (1)

Publication Number Publication Date
EP4155614A1 true EP4155614A1 (fr) 2023-03-29

Family

ID=83398383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22196622.9A Pending EP4155614A1 (fr) 2021-09-23 2022-09-20 Appareil de cuisson, en particulier appareil de cuisson industriel

Country Status (3)

Country Link
US (1) US20240255155A1 (fr)
EP (1) EP4155614A1 (fr)
DE (1) DE102021124685A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE413748C (de) 1925-05-15 Schmidt Ernst Kartoffelsammler
DE202004015292U1 (de) * 2004-10-01 2006-02-09 Wss Gmbh Vorrichtung zum Ansaugen von Frischluft in einem Dampf- und/oder Dampfheißluft- und/oder Heißluft- und/oder Mikrowellengerät
EP1767869A2 (fr) * 2005-09-23 2007-03-28 ANGELO PO GRANDI CUCINE S.p.A. Appareil de cuisson
DE10351476B4 (de) 2003-11-04 2008-09-25 Rational Ag Gargerät zur verbesserten Frischluftzufuhr

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10330250B3 (de) 2003-07-04 2004-12-23 Rational Ag Gargerät mit Beschwadungseinrichtung
DE102005047455A1 (de) 2004-10-01 2006-04-13 Wss Gmbh Vorrichtung zum Ansaugen von Frischluft in einem Dampf- und/oder Dampfheißluft- und/oder Heißluft- und/oder Mikrowellengerät
DE102009000275A1 (de) 2009-01-16 2010-07-22 BSH Bosch und Siemens Hausgeräte GmbH Gargerät mit Zerstäubungseinrichtung und Verfahren zum Befeuchten eines Garraums
DE202010008995U1 (de) 2010-11-10 2012-02-13 Rational Ag Kanalelement und Gargerät mit einem solchen Kanalelement
DE202017003189U1 (de) 2017-06-13 2017-06-29 Frank Becker Gewürzbeschwadungsfunktion für Konvektomaten/Kombidämpfer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE413748C (de) 1925-05-15 Schmidt Ernst Kartoffelsammler
DE10351476B4 (de) 2003-11-04 2008-09-25 Rational Ag Gargerät zur verbesserten Frischluftzufuhr
DE202004015292U1 (de) * 2004-10-01 2006-02-09 Wss Gmbh Vorrichtung zum Ansaugen von Frischluft in einem Dampf- und/oder Dampfheißluft- und/oder Heißluft- und/oder Mikrowellengerät
EP1767869A2 (fr) * 2005-09-23 2007-03-28 ANGELO PO GRANDI CUCINE S.p.A. Appareil de cuisson

Also Published As

Publication number Publication date
DE102021124685A1 (de) 2023-03-23
US20240255155A1 (en) 2024-08-01

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