EP2511614A1 - Procédé de fonctionnement d'un four à vapeur et four à vapeur - Google Patents

Procédé de fonctionnement d'un four à vapeur et four à vapeur Download PDF

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Publication number
EP2511614A1
EP2511614A1 EP11003145A EP11003145A EP2511614A1 EP 2511614 A1 EP2511614 A1 EP 2511614A1 EP 11003145 A EP11003145 A EP 11003145A EP 11003145 A EP11003145 A EP 11003145A EP 2511614 A1 EP2511614 A1 EP 2511614A1
Authority
EP
European Patent Office
Prior art keywords
water level
control unit
pyrolytic
steam oven
water
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
EP11003145A
Other languages
German (de)
English (en)
Other versions
EP2511614B1 (fr
Inventor
Bianca Häuslein
Kurt Reul
Alexander Hauck
Marcel Morosini
Laurent Jeanneteau
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP11003145.7A priority Critical patent/EP2511614B1/fr
Priority to PCT/EP2012/056745 priority patent/WO2012140182A1/fr
Priority to AU2012241771A priority patent/AU2012241771B2/en
Priority to BR112013022070A priority patent/BR112013022070A2/pt
Priority to CA2825302A priority patent/CA2825302A1/fr
Priority to US14/111,227 priority patent/US20140027438A1/en
Publication of EP2511614A1 publication Critical patent/EP2511614A1/fr
Application granted granted Critical
Publication of EP2511614B1 publication Critical patent/EP2511614B1/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
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • F24C14/02—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type
    • 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

Definitions

  • the invention relates to a method for operating a steam oven, especially a domestic steam oven, wherein the steam oven has a control unit and a water reservoir and wherein the steam oven is equipped with a pyrolytic cleaning function. Furthermore, the invention relates to a steam oven.
  • JP 2005273991 A a steam oven is disclosed. Here the start of the cooking process is enabled only if enough water is present in the water reservoir.
  • the operation of the pyrolytic cleaning comprises the following steps after the pyrolytic cleaning function is activated by the user:
  • the water level in the water reservoir is detected by suitable sensor elements; this is managed by the control unit. Only if a certain and special water level is given in the water reservoir (the defined minimum pyrolytic water level) the pyrolytic cleaning process is carried out; otherwise the user is alerted to fill up water into the water reservoir before the pyrolytic process is done. By doing so enough water is in the reservoir so that the thermal load to the components is reduced due to an insulating property of the water.
  • the operation of the pyrolytic cleaning can furthermore comprises the steps after the pyrolytic cleaning function is activated by the user and before carrying out above mentioned step c) :
  • the minimum pyrolytic water level can be a maximum water level for normal steam cooking operation.
  • the minimum pyrolytic water level can also be a water level which is between a maximum water level for normal steam cooking operation and a defined overfilled water level.
  • a version of the proposed method proposes that an alarm is issued to the user by the control unit if the actual water level is above a defined overfilled water level to alert the user to drain water from the water reservoir.
  • this signal can be an optical signal (e. g. a respective message on a display of the oven) or an acoustic signal.
  • the proposed steam oven with the pyrolytic cleaning function is characterized by the invention in that the steam oven comprises at least one sensor element to detect the actual water level in the reservoir, wherein the control unit comprises means for comparing the detected actual water level with a defined minimum pyrolytic water level and wherein the control unit comprises alarm means for issuing of an alarm to the user if the actual water level is below the minimum pyrolytic water level and if a pyrolytic cleaning operation is activated.
  • the at least one sensor element can be designed to detect an overfilled water level, wherein the control unit comprises means for comparing the detected actual water level with the overfilled water level and wherein the control unit comprises alarm means for issuing of an alarm to the user if the actual water level is above the overfilled water level.
  • the sensor element can comprise at least one floating magnet and relay reeds. Also, it can be a capacitive element. Of course, also other detection elements to measure the water level in the water reservoir can be employed.
  • the control unit can be designed to calculate and output the water volume necessary to reach a defined water level in accordance with a detected water level by the sensor element. This means that the invention does not only supplies the signal "too less water in the water reservoir” or “too much water in the reservoir” but can also inform the user how much water has to be filled or drained into or from the tank.
  • the steam oven can comprise optical and/or acoustic alarm signal means.
  • the invention allows to detect the exact level of water reservoir of the steam oven which adds the functionality of overfill detection. Furthermore, the proposed concept tells the user in an accurate manner how much water is missing in the water reservoir or exactly how much water is too much in the reservoir.
  • the present invention can be employed in the case that a removable water tank is used within the steam oven. It can also be the case that a build-in water reservoir is used which cannot be removed. Especially if this water reservoir is not visible for the user and thus that the water level cannot easily be monitored by the user the present invention develops its full benefits.
  • a removable water tank normally reduces the available space of the cavity or of the front panel of the oven. An invisible reservoir is sometimes better in this respect.
  • the concept according to the invention also defines at least two water levels, i. e. a maximum water level for normal steam cooking and an overfilled water level.
  • a draining pipe can be arranged which is manually activated by the user to remove water from the reservoir.
  • the sensors for detecting the water level can thus easier be designed to detect a big range of filling degrees of the reservoir.
  • the user can also be specifically informed how much water (i. e. how many millilitre) has to be refilled or drained into or from the reservoir. This can be done in a quite accurate manner due to the design of the sensor.
  • the water reservoir does not need an automatic draining pipe system for the case of overfilling.
  • the user of the oven is better guided to ensure the right degree of filling of the water reservoir according to the actual process which is running in the steam oven (normal cooking operation or pyrolytic cleaning).
  • FIG 1 a steam oven 1 is shown schematically which has a cooking cavity 5 closable by a door 6.
  • the steam oven is equipped with a well known arrangement to supply water steam into the cavity 5.
  • the steam oven 1 comprises a water reservoir 3 (water tank) in which water can be filled.
  • the water which is filled into the water reservoir 3 reaches up to an actual water level L.
  • a sensor element 4 is arranged which is able to detect the actual water level L.
  • the detected value for the actual water level is forwarded to a control unit 2 of the steam oven 1.
  • the water level L can reach a maximum water level L MN for normal steam cooking. I. e. this water level L MN is the maximum water level for the water in the reservoir 3 when normal cooking operation is required.
  • the water level can reach an overfilled water level L OF which is a bit above the level L MN , e. g. this level is reached when 10% to 20% more water is filled in the reservoir as in the case of the filling degree up to the level L MN .
  • the steam oven 1 is equipped with - not depicted - means for carrying out a pyrolytic cleaning operation of the cavity 5.
  • a minimum pyrolytic water level L MP must be maintained.
  • the minimum pyrolytic water level L MP is equal to the maximum water level L MN for normal steam cooking; but this needs not to be necessarily the case.
  • the user selects the respective pyrolytic cleaning program by means of an Input-Output-Device (not shown but connected with the control unit 2), i. e. the user activates the pyrolytic cleaning program.
  • the pyrolytic cleaning program does not start immediately. At first the actual water level L in the water reservoir 3 is detected by the sensor element 4 and registered by the control unit 2. Then a comparison takes place in the control unit 2 between the detected actual water level L and a stored value for the minimum pyrolytic water level L MP .
  • the pyrolytic cleaning function is started then by the control unit 2 if the actual water level L is equal or above the minimum pyrolytic water level L MP .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electric Ovens (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cookers (AREA)
EP11003145.7A 2011-04-14 2011-04-14 Procédé de fonctionnement d'un four à vapeur et four à vapeur Active EP2511614B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11003145.7A EP2511614B1 (fr) 2011-04-14 2011-04-14 Procédé de fonctionnement d'un four à vapeur et four à vapeur
PCT/EP2012/056745 WO2012140182A1 (fr) 2011-04-14 2012-04-13 Méthode d'utilisation d'un four à vapeur et four à vapeur
AU2012241771A AU2012241771B2 (en) 2011-04-14 2012-04-13 Method for operating a steam oven and steam oven
BR112013022070A BR112013022070A2 (pt) 2011-04-14 2012-04-13 método para operar um forno a vapor e forno a vapor
CA2825302A CA2825302A1 (fr) 2011-04-14 2012-04-13 Methode d'utilisation d'un four a vapeur et four a vapeur
US14/111,227 US20140027438A1 (en) 2011-04-14 2012-04-13 Method for operating a steam oven and steam oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11003145.7A EP2511614B1 (fr) 2011-04-14 2011-04-14 Procédé de fonctionnement d'un four à vapeur et four à vapeur

Publications (2)

Publication Number Publication Date
EP2511614A1 true EP2511614A1 (fr) 2012-10-17
EP2511614B1 EP2511614B1 (fr) 2016-07-06

Family

ID=44486997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11003145.7A Active EP2511614B1 (fr) 2011-04-14 2011-04-14 Procédé de fonctionnement d'un four à vapeur et four à vapeur

Country Status (6)

Country Link
US (1) US20140027438A1 (fr)
EP (1) EP2511614B1 (fr)
AU (1) AU2012241771B2 (fr)
BR (1) BR112013022070A2 (fr)
CA (1) CA2825302A1 (fr)
WO (1) WO2012140182A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020094294A1 (fr) 2018-11-07 2020-05-14 Arcelik Anonim Sirketi Dispositif de cuisson comprenant un système de lavage
IT202000017674A1 (it) * 2020-07-21 2022-01-21 Angelo Po Grandi Cucine Spa Apparato per la cottura di alimenti e relativo metodo di gestione

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601279A (en) * 1984-07-10 1986-07-22 Societe De Dietrich Pyrolytic self-cleaning domestic oven with improved means for protecting electronic panel and controls from heat damages
DE10038136A1 (de) 2000-08-04 2002-02-21 Bsh Bosch Siemens Hausgeraete Dampfgargerät
JP2005273991A (ja) 2004-03-24 2005-10-06 Sharp Corp 蒸気調理器
US20060000821A1 (en) * 2004-06-30 2006-01-05 Davide Gerola Oven with a system for generating steam
US20070204853A1 (en) * 2006-02-10 2007-09-06 Jason Cheng Steam system for continuous cleaning of hood fan
DE102006050367A1 (de) * 2006-10-25 2008-04-30 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Durchführen eines Garprozesses mit einem Dampfgargerät
DE102008014040A1 (de) 2007-03-20 2008-10-09 BSH Bosch und Siemens Hausgeräte GmbH Dampfgargerätevorrichtung und Verfahren für einen Dampfgarbetrieb
WO2010128471A2 (fr) * 2009-05-07 2010-11-11 Filippi Srl Four pour cuire des aliments

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924072A (en) * 1987-05-14 1990-05-08 Delaware Capital Formation, Inc. Humidity control for oven chamber
US4851644A (en) * 1987-05-14 1989-07-25 Delaware Capital Formation, Inc. Electric combination oven
US7024104B2 (en) * 2003-05-16 2006-04-04 Delaware Capital Formation, Inc. Boilerless steamer apparatus
KR20050027460A (ko) * 2003-09-15 2005-03-21 삼성전자주식회사 과열증기 조리장치 및 그 제어방법
DE102004004816B4 (de) * 2004-01-30 2021-10-28 BSH Hausgeräte GmbH Kaffeemaschine mit Durchlauferhitzer
WO2008011464A1 (fr) * 2006-07-18 2008-01-24 3M Innovative Properties Company Procédé de calandrage pour fabriquer un film optique
EP1914527B1 (fr) * 2006-10-20 2009-11-18 RANCILIO MACCHINE PER CAFFE' S.p.A. Dispositif pour la régulation du niveau de liquide dans la chaudière d'une machine à café
US7777159B2 (en) * 2008-01-02 2010-08-17 Computime, Ltd Kettle controller
US8193470B1 (en) * 2008-09-08 2012-06-05 Kfc Corporation Self-cleaning convection oven

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4601279A (en) * 1984-07-10 1986-07-22 Societe De Dietrich Pyrolytic self-cleaning domestic oven with improved means for protecting electronic panel and controls from heat damages
DE10038136A1 (de) 2000-08-04 2002-02-21 Bsh Bosch Siemens Hausgeraete Dampfgargerät
JP2005273991A (ja) 2004-03-24 2005-10-06 Sharp Corp 蒸気調理器
US20060000821A1 (en) * 2004-06-30 2006-01-05 Davide Gerola Oven with a system for generating steam
US20070204853A1 (en) * 2006-02-10 2007-09-06 Jason Cheng Steam system for continuous cleaning of hood fan
DE102006050367A1 (de) * 2006-10-25 2008-04-30 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Durchführen eines Garprozesses mit einem Dampfgargerät
DE102008014040A1 (de) 2007-03-20 2008-10-09 BSH Bosch und Siemens Hausgeräte GmbH Dampfgargerätevorrichtung und Verfahren für einen Dampfgarbetrieb
WO2010128471A2 (fr) * 2009-05-07 2010-11-11 Filippi Srl Four pour cuire des aliments

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020094294A1 (fr) 2018-11-07 2020-05-14 Arcelik Anonim Sirketi Dispositif de cuisson comprenant un système de lavage
IT202000017674A1 (it) * 2020-07-21 2022-01-21 Angelo Po Grandi Cucine Spa Apparato per la cottura di alimenti e relativo metodo di gestione
EP3943818A1 (fr) * 2020-07-21 2022-01-26 Angelo Po Grandi Cucine - Societa' per Azioni Appareil de cuisson d'aliments et procédé de fonctionnement de l'appareil

Also Published As

Publication number Publication date
CA2825302A1 (fr) 2012-10-18
EP2511614B1 (fr) 2016-07-06
AU2012241771B2 (en) 2016-07-28
WO2012140182A1 (fr) 2012-10-18
US20140027438A1 (en) 2014-01-30
BR112013022070A2 (pt) 2017-08-01

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