US20140027438A1 - Method for operating a steam oven and steam oven - Google Patents

Method for operating a steam oven and steam oven Download PDF

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Publication number
US20140027438A1
US20140027438A1 US14/111,227 US201214111227A US2014027438A1 US 20140027438 A1 US20140027438 A1 US 20140027438A1 US 201214111227 A US201214111227 A US 201214111227A US 2014027438 A1 US2014027438 A1 US 2014027438A1
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US
United States
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.)
Abandoned
Application number
US14/111,227
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English (en)
Inventor
Bianca Hauslein
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
Publication of US20140027438A1 publication Critical patent/US20140027438A1/en
Assigned to ELECTROLUX HOME PRODUCTS CORPORATION N.V. reassignment ELECTROLUX HOME PRODUCTS CORPORATION N.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAUSLEIN, BIANCA, HAUCK, ALEXANDER, JEANNETEAU, LAURENT, Morosini, Marcel, REUL, KURT
Abandoned 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
    • 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 over-fill 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 shows a schematic illustration of a steam oven in a sectional side view
  • FIG. 2 shows an enlarged view of the water reservoir of the steam oven according to the depiction of FIG. 1 .
  • 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 .

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  • 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)
US14/111,227 2011-04-14 2012-04-13 Method for operating a steam oven and steam oven Abandoned US20140027438A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11003145.7A EP2511614B1 (en) 2011-04-14 2011-04-14 Method for operating a steam oven and steam oven
EP11003145.7 2011-04-14
PCT/EP2012/056745 WO2012140182A1 (en) 2011-04-14 2012-04-13 Method for operating a steam oven and steam oven

Publications (1)

Publication Number Publication Date
US20140027438A1 true US20140027438A1 (en) 2014-01-30

Family

ID=44486997

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/111,227 Abandoned US20140027438A1 (en) 2011-04-14 2012-04-13 Method for operating a steam oven and steam oven

Country Status (6)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3877701A1 (en) 2018-11-07 2021-09-15 Arçelik Anonim Sirketi A cooking device comprising a washing system
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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851644A (en) * 1987-05-14 1989-07-25 Delaware Capital Formation, Inc. Electric combination oven
US4924072A (en) * 1987-05-14 1990-05-08 Delaware Capital Formation, Inc. Humidity control for oven chamber
US20040226934A1 (en) * 2003-05-16 2004-11-18 Moore Roger R. Boilerless steamer apparatus
US20050056634A1 (en) * 2003-09-15 2005-03-17 Samsung Electronics Co. Ltd. Overheated steam oven and method of controlling the same
US20080020186A1 (en) * 2006-07-18 2008-01-24 3M Innovative Properties Company Calendering process for making an optical film
US20080028947A1 (en) * 2004-01-30 2008-02-07 Bsh Bosch Und Siemens Hausgeraete Gmbh Coffee Machine with a Continuous Flow Heater
US20090166350A1 (en) * 2008-01-02 2009-07-02 Computime, Ltd Kettle Controller
WO2010128471A2 (en) * 2009-05-07 2010-11-11 Filippi Srl Oven for cooking food
US20100326282A1 (en) * 2006-10-20 2010-12-30 Carlo Carbonini Device for regulating the level of a liquid in a boiler of a coffee machine
US8193470B1 (en) * 2008-09-08 2012-06-05 Kfc Corporation Self-cleaning convection oven

Family Cites Families (7)

* 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
DE10038136B4 (de) 2000-08-04 2006-03-09 BSH Bosch und Siemens Hausgeräte GmbH Dampfgargerät
JP4229862B2 (ja) 2004-03-24 2009-02-25 シャープ株式会社 蒸気調理器
ITMI20040319U1 (it) * 2004-06-30 2004-09-30 Whirlpool Co Dispositivo generatore di vapore ad uso di cottura cibi in un forno
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

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851644A (en) * 1987-05-14 1989-07-25 Delaware Capital Formation, Inc. Electric combination oven
US4924072A (en) * 1987-05-14 1990-05-08 Delaware Capital Formation, Inc. Humidity control for oven chamber
US20040226934A1 (en) * 2003-05-16 2004-11-18 Moore Roger R. Boilerless steamer apparatus
US20050056634A1 (en) * 2003-09-15 2005-03-17 Samsung Electronics Co. Ltd. Overheated steam oven and method of controlling the same
US20080028947A1 (en) * 2004-01-30 2008-02-07 Bsh Bosch Und Siemens Hausgeraete Gmbh Coffee Machine with a Continuous Flow Heater
US20080020186A1 (en) * 2006-07-18 2008-01-24 3M Innovative Properties Company Calendering process for making an optical film
US20100326282A1 (en) * 2006-10-20 2010-12-30 Carlo Carbonini Device for regulating the level of a liquid in a boiler of a coffee machine
US20090166350A1 (en) * 2008-01-02 2009-07-02 Computime, Ltd Kettle Controller
US8193470B1 (en) * 2008-09-08 2012-06-05 Kfc Corporation Self-cleaning convection oven
WO2010128471A2 (en) * 2009-05-07 2010-11-11 Filippi Srl Oven for cooking food

Also Published As

Publication number Publication date
WO2012140182A1 (en) 2012-10-18
AU2012241771B2 (en) 2016-07-28
BR112013022070A2 (pt) 2017-08-01
EP2511614A1 (en) 2012-10-17
EP2511614B1 (en) 2016-07-06
CA2825302A1 (en) 2012-10-18

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Owner name: ELECTROLUX HOME PRODUCTS CORPORATION N.V., BELGIUM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAUSLEIN, BIANCA;REUL, KURT;HAUCK, ALEXANDER;AND OTHERS;SIGNING DATES FROM 20170124 TO 20170125;REEL/FRAME:042026/0396

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION