EP2184545A1 - Four de cuisson - Google Patents

Four de cuisson Download PDF

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Publication number
EP2184545A1
EP2184545A1 EP20090013637 EP09013637A EP2184545A1 EP 2184545 A1 EP2184545 A1 EP 2184545A1 EP 20090013637 EP20090013637 EP 20090013637 EP 09013637 A EP09013637 A EP 09013637A EP 2184545 A1 EP2184545 A1 EP 2184545A1
Authority
EP
European Patent Office
Prior art keywords
cooking compartment
cooking
channel
lower base
burner
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.)
Granted
Application number
EP20090013637
Other languages
German (de)
English (en)
Other versions
EP2184545B1 (fr
Inventor
Alberto Gasparini
Ricardo Pelizzoli
Paolo Faraldi
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.)
Whirlpool EMEA SpA
Original Assignee
Indesit Co SpA
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 Indesit Co SpA filed Critical Indesit Co SpA
Publication of EP2184545A1 publication Critical patent/EP2184545A1/fr
Application granted granted Critical
Publication of EP2184545B1 publication Critical patent/EP2184545B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24C3/087—Arrangement or mounting of burners on ranges in baking ovens
    • 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
    • F24C15/006—Arrangements for circulation of cooling 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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities
    • 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

Definitions

  • This invention relates to a cooking oven. Cooking ovens are normally used in the home and in catering establishments.
  • gas cooking ovens comprising a compartment in which the food to be cooked is placed.
  • the technical purpose which forms the basis of this invention is to propose a cooking oven that overcomes the above mentioned drawbacks of the prior art.
  • Another aim of the invention is to provide a cooking oven capable of improving cooking quality.
  • the lower base 23 is located under the ceiling 24 and the cooking compartment 3. Similarly, the ceiling 24 is located above the lower base 23 and the cooking compartment 3.
  • the casing 2 also comprises:
  • the door 21 In the closed configuration the door 21 extends at least partly between the ceiling 24 and the lower base 23.
  • the door 21 provides access for the user to put food inside or take food out of the cooking compartment 3. Normally, the door 21 his hinged to the remaining parts of the cooking oven 1.
  • the casing 2 also comprises two lateral walls 25 located opposite each other and interposed between the rear wall 251 and the door 21 in the closed configuration.
  • the two lateral walls 25 also extend between the ceiling 24 and the lower base 23. More specifically, the two lateral walls 25 connect the lower base 23 and the ceiling 24.
  • the lower base 23, the ceiling 24, the rear wall 251, the two lateral walls 25 and the door 21 in the closed configuration delimit the cooking compartment 3 designed to accommodate the food to be cooked.
  • the casing 2 comprises the door 21 and five walls 22 that delimit the cooking compartment 3, the casing 2 approximating a parallelepiped whose six faces correspond to the five walls 22 and the door 21 in the closed configuration.
  • cooking racks Inside the casing 2 there are cooking racks, usually pull-out (not illustrated), on which the food to be cooked can be placed.
  • the cooking oven 1 further comprises means 5 for expelling the combustion fumes produced by the burner 4.
  • the expulsion means 5 convey the combustion fumes outside the oven 1.
  • the expulsion means 5 comprise a channel 50 which conveys the combustion fumes generated by the gas burner 4, picking them up outside the cooking compartment 3.
  • the channel 50 comprises at least one predetermined portion 51 which is in thermal contact with the cooking compartment 3 and extends at least along part of both of the lateral walls 25 of the casing 2. Heating evenness inside the cooking compartment 3 is thus improved. Heating the two lateral walls 25 of the casing 2 is very important because it improves heating of two opposite peripheral zones of the cooking compartment 3 and thus spreads heat more evenly inside the cooking compartment 3.
  • the channel 50 does not extend along the rear wall 251, thus making it possible to reduce the dimensions of the oven 1 in depth. If the oven 1 is of the recessed type, for example, reducing its depth allows it to be adapted to a larger number of modular kitchen designs.
  • the channel 50 (in particular the predetermined portion 51 of the channel 50) is completely outside the cooking compartment 3.
  • the channel 50 (in particular the predetermined portion 51 of the channel 50) surrounds the cooking compartment 3. More specifically, there is at least one plane intersecting the two lateral walls 25 where the predetermined portion 51 of the channel 50 surrounds the cooking compartment 3.
  • the channel 50 As shown by way of an example in Figure 2 , the channel 50, at the lower base 23 and outside the cooking compartment 3, divides into two branches 52, 53, each extending along a respective lateral wall 25.
  • the two branches 52, 53 reconnect at the ceiling 24 of the casing 2 (still outside the cooking compartment 3). This optimizes heat exchange between the combustion fumes produced by the gas burner 4 and the cooking compartment 3.
  • the channel 50 (in particular, the predetermined portion 51 of the channel 50) touches at least the lower base 23 and/or the ceiling 24, and/or the two lateral walls 25 of the casing 2.
  • the channel 50 does not lead into the cooking compartment 3. This allows better cooking quality because it means the food is not contaminated by the combustion fumes produced by the gas burner 4.
  • the channel 50 might lead into the cooking compartment 3, for example at the ceiling 24. Even in an embodiment of that kind, the channel 50 would at least partly touch the casing 2, providing additional heat for the cooking compartment 3. The cooking vapours produced by the cooking food and the combustion fumes generated by the gas burner 4 might then be expelled from the inside of the cooking compartment 3 by a single conduit.
  • the channel 50 (in particular the predetermined portion 51 of the channel 50) extends immediately downstream of the gas burner 4 relative to the direction of outflow of the combustion fumes produced by the gas burner 4.
  • the predetermined portion 51 of the channel 50 extends along at least part of the two lateral walls 25 and/or along the ceiling 24 and/or along the lower base 23.
  • the channel 50 is almost completely in contact at least with the two lateral walls 25 and/or the ceiling 24 of the casing 2 and/or the lower base 23 of the casing 2.
  • the predetermined portion 51 of the channel 50 is almost completely in contact at least with the two lateral walls 25 and/or the ceiling 24 of the casing 2 and/or the lower base 23 of the casing 2.
  • the oven 1 comprises an outer case 6 which in conjunction with the casing 2 forms a hollow space 60 between the casing 2 and the outer case 6.
  • the hollow space 60 is sealed, in that there is no direct fluid communication between the hollow space 60 and the adjacent cooking compartment 3. During operation, the channel 50 and the cooking compartment 3 are thus fluid-dynamically isolated from each other.
  • the hollow space 60 is delimited by a front frame which abuts the door 21 when the latter is in the closed configuration.
  • a second frame that delimits the hollow space preventing the combustion fumes produced by the burner 4 to come into contact with the rear wall 251.
  • the hollow space 60 surrounds the cooking compartment 3.
  • the hollow space 60 forms part of the predetermined portion 51 of the channel 50 and is designed to allow the passage of the combustion fumes produced by the gas burner 4.
  • the outer case 6 at least partially houses the casing 2.
  • the outer case 6 encompasses the casing 2.
  • the outer case 6 at least partly encompasses the two lateral walls 25 of the casing 2.
  • the outer case 6 also at least partly encompasses the ceiling 24 and/or the lower base 23 of the casing 2.
  • the outer case 6 almost totally partly encompasses the ceiling 24 and/or the lower base 23 and/or the two lateral walls 25 of the casing 2.
  • the outer case 6 comprises a window 61 where the gas burner 4 is housed.
  • the window 6 is formed under the casing 2.
  • the window 6 faces the lower base 23 of the casing 2.
  • the burner 4 is preferably of the flame retention type such as, for example, a ceramic or metal fibre burner.
  • the oven 1 comprises means for generating a spark to ignite the gas flowing out of the burner 4.
  • the spark generating means comprise a spark plug, for example.
  • the oven 1 comprises means 10 for supplying secondary air to the burner 4.
  • the secondary air allows the combustion of the gas-air mixture flowing out of the burner 4 to be completed.
  • the secondary air is drawn in from outside the oven 1 by the secondary air supply means 10.
  • the secondary air supply means 10 comprise at least one outlet section 11 formed at the burner 4 and advantageously directed at the burner 4.
  • outlet sections 11 of the secondary air supply means 10 completely surround the burner 4.
  • the lower base 23 may comprise a shaped element 7 which is at least partly transparent, allowing the gas burner 4 to cook by irradiation the food placed in the cooking compartment 3.
  • the shaped element 7 is located at the burner 4. More specifically, the shaped element 7 faces the burner 4.
  • the shaped element 7 might comprise or coincide with a plate 70 (for example, the plate 70 might be made of glass-ceramic material).
  • the shaped element 7 that provides the thermal flywheel effect may comprise or coincide with the shaped element 7 that is at least partly transparent.
  • the plate 70 forming part of the shaped element 7 that provides the thermal flywheel effect comprises or coincides with the plate 70 forming part of the shaped element 7 that is at least partly transparent.
  • the shaped element 7 occupies at least half of the surface of the lower base 23 of the casing 2.
  • the channel 50 (in particular the predetermined portion 51 of the channel 50) is in thermal contact with the shaped element 7.
  • the combustion fumes come into direct contact with the surface of the shaped element 7 outside the cooking compartment 3. More specifically, the shaped element 7 is located at the gas burner 4.
  • the fan 44 is nevertheless advantageous to optimize temperature evenness in the cooking compartment 3, especially in the zone adjacent to the door 21 (for obvious reasons, the door 21 would not be the most convenient part for the passage of the channel 50). Furthermore, the fan 44 also makes the temperature more uniform throughout the cooking compartment 3 when the gas burner 4 is not being used.
  • the oven 1 also comprises an electronic control system which allows the heat generating means 40 to be switched on and off (and, if necessary, adjusted) in order to maintain preset operating conditions.
  • the preset operating conditions might consist in keeping a predetermined temperature in the cooking compartment 3 or creating in the cooking compartment 3 a predetermined temperature profile over time.
  • the control system might also control another component of the heat generating means 40 (for example, the above mentioned circular resistor 43 or first resistor 42).
  • the preset operating conditions might be set manually by the user through an interface forming part of the oven 1. For example, the user might select the cooking temperature required in the cooking compartment 3 of the oven 1. In one particular embodiment, the user can select the type of food to be cooked from a predetermined list. Each food item in the list is associated with specific instructions controlling the switching on and off or adjustment of the heat generating means 40.
  • the oven 1 also comprises a duct 8 for extracting from the cooking compartment 3 the vapours generated during cooking of the food.
  • the oven 1 comprises a cooling duct 90 through which air is drawn in from the environment outside the oven 1 in order to cool the components inside the oven 1 (in particular the electronic components of the oven 1).
  • the duct 90 passes near the electronic components and thus dissipates the heat generated by the electronic components so as to keep them below the temperature threshold below which they can operate correctly.
  • the channel 50 of the combustion fume extraction means 5 puts the burner 4 in fluid communication with the cooling duct 90.
  • the mechanical movement means 9 create a negative pressure in the cooking compartment 3 causing the cooking vapours to be extracted through the duct 8.
  • the mechanical movement means 9 are located along the duct 8 and are crossed by the cooking vapours extracted from the cooking compartment 3.
  • the passage of the gaseous fluid moved by the mechanical movement means 9 at the connection zone between the cooling duct 90 and the channel 50 may create a negative pressure (for example by the Venturi effect) in the channel 50, this negative pressure attracting the combustion fumes from the channel 50.
  • the food is cooked both by the contribution of the heating elements 41 inside the cooking compartment 3 and by the contribution linked to the action of the burner 4 outside the cooking compartment.
  • This invention is connected mainly with the contribution provided by the gas burner 4.
  • the gas burner 4 is located under the casing 2 and thus the combustion fumes tend to rise and come into contact with the casing 2.
  • the hot combustion fumes are channelled through the hollow space 60 which is outside, and in thermal contact with, the casing 2.
  • the hollow space 60 is in direct contact with the casing 2 but is sealed in that it is not in direct fluid communication with the cooking fumes in the cooking compartment 3. The cooking fumes are then extracted from the hollow space 60 through a suitable duct 63 located above the casing 2.
  • This invention has important advantages. First of all, it improves heat distribution in the cooking compartment 3.
  • Another important advantage is due to the increase in the available cooking power, said increase being independent of normal household electricity use.
  • the casing 2 can serve as a heat sink for dissipating the heat generated by the combustion fumes produced by the burner 4 and flowing through the channel 50.
  • the combustion fumes heat the cooking compartment 3 by transferring heat and it is not therefore necessary to install a special heat sink to dissipate the heat of the combustion fumes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP09013637.5A 2008-11-11 2009-10-29 Four de cuisson Active EP2184545B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRN2008A000053A IT1391852B1 (it) 2008-11-11 2008-11-11 Forno di cottura.

Publications (2)

Publication Number Publication Date
EP2184545A1 true EP2184545A1 (fr) 2010-05-12
EP2184545B1 EP2184545B1 (fr) 2016-03-23

Family

ID=41510879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013637.5A Active EP2184545B1 (fr) 2008-11-11 2009-10-29 Four de cuisson

Country Status (2)

Country Link
EP (1) EP2184545B1 (fr)
IT (1) IT1391852B1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20130331A1 (it) * 2013-04-23 2014-10-24 Indesit Co Spa Forno a gas ad alto rendimento e metodo per il suo funzionamento
EP3026348A1 (fr) * 2014-11-27 2016-06-01 La Cornue Appareil de cuisson à gaz, notamment un four à gaz
WO2016132283A1 (fr) * 2015-02-20 2016-08-25 DE MASI, Antonino Four automatique pour la cuisson de produits de boulangerie et en particulier de pizzas
WO2017097327A1 (fr) * 2015-12-07 2017-06-15 Arcelik Anonim Sirketi Four à gaz à protection thermique améliorée
IT201600081759A1 (it) * 2016-08-03 2018-02-03 Dometic Sweden Ab Apparato di cottura
EP3917365A4 (fr) * 2019-01-28 2022-08-10 Renta Elektrikli Ev Aletleri Sanayi Ve Dis Ticaret Limited Sirketi Four à chambre de cuisson à double paroi
US11796182B2 (en) 2021-06-24 2023-10-24 Midea Group Co., Ltd. Secondary venting arrangement for gas oven cooking appliance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE816303C (de) * 1949-07-21 1951-10-08 Homann Werke Wilhelm Homann Gasbeheizter Brat- und Backofen
EP1312293A1 (fr) * 2001-11-20 2003-05-21 Condor B S.r.l. Four ménager pour barbecue
US20050056267A1 (en) * 2003-09-11 2005-03-17 Maytag Corporation Combination radiant/convection gas cooking appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865010A (en) * 1988-12-30 1989-09-12 Whirlpool Corporation Exhaust duct cooling system for built-in gas oven
IT1273196B (it) * 1994-05-12 1997-07-07 Merloni Elettrodomestici Spa Forno per la cottura di vivande con camino di scarico vapori
GB0524238D0 (en) * 2005-11-26 2006-01-04 Aga Consumer Products Ltd Stoves

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE816303C (de) * 1949-07-21 1951-10-08 Homann Werke Wilhelm Homann Gasbeheizter Brat- und Backofen
EP1312293A1 (fr) * 2001-11-20 2003-05-21 Condor B S.r.l. Four ménager pour barbecue
US20050056267A1 (en) * 2003-09-11 2005-03-17 Maytag Corporation Combination radiant/convection gas cooking appliance

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20130331A1 (it) * 2013-04-23 2014-10-24 Indesit Co Spa Forno a gas ad alto rendimento e metodo per il suo funzionamento
EP2796791A1 (fr) * 2013-04-23 2014-10-29 Indesit Company S.p.A. Four à gaz à haut rendement et son procédé de fonctionnement
US10274205B2 (en) 2014-11-27 2019-04-30 La Cornue Gas cooking appliance, more particularly a gas oven
FR3029272A1 (fr) * 2014-11-27 2016-06-03 La Cornue Appareil de cuisson a gaz, notamment un four a gaz
EP3026348A1 (fr) * 2014-11-27 2016-06-01 La Cornue Appareil de cuisson à gaz, notamment un four à gaz
RU2703082C2 (ru) * 2014-11-27 2019-10-15 Ля Корню Устройство для приготовления пищи, в частности газовая печь, и использование указанного устройства
WO2016132283A1 (fr) * 2015-02-20 2016-08-25 DE MASI, Antonino Four automatique pour la cuisson de produits de boulangerie et en particulier de pizzas
CN107249335A (zh) * 2015-02-20 2017-10-13 安东尼诺·德·玛斯 用于烹制焙烤产品尤其是披萨的自动烤炉
US20170354155A1 (en) * 2015-02-20 2017-12-14 Antonino De Masi Automated oven for cooking of bakery products and in particular pizza
CN107249335B (zh) * 2015-02-20 2019-08-13 安东尼诺·德·玛斯 用于烹制焙烤产品的自动烤炉及其使用方法
WO2017097327A1 (fr) * 2015-12-07 2017-06-15 Arcelik Anonim Sirketi Four à gaz à protection thermique améliorée
IT201600081759A1 (it) * 2016-08-03 2018-02-03 Dometic Sweden Ab Apparato di cottura
EP3917365A4 (fr) * 2019-01-28 2022-08-10 Renta Elektrikli Ev Aletleri Sanayi Ve Dis Ticaret Limited Sirketi Four à chambre de cuisson à double paroi
US11796182B2 (en) 2021-06-24 2023-10-24 Midea Group Co., Ltd. Secondary venting arrangement for gas oven cooking appliance

Also Published As

Publication number Publication date
IT1391852B1 (it) 2012-01-27
EP2184545B1 (fr) 2016-03-23
ITRN20080053A1 (it) 2010-05-12

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