EP1813870A2 - Appareil de cuisson doté d'une surveillance du remplissage et/ou de la quantité de remplissage - Google Patents

Appareil de cuisson doté d'une surveillance du remplissage et/ou de la quantité de remplissage Download PDF

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Publication number
EP1813870A2
EP1813870A2 EP07002781A EP07002781A EP1813870A2 EP 1813870 A2 EP1813870 A2 EP 1813870A2 EP 07002781 A EP07002781 A EP 07002781A EP 07002781 A EP07002781 A EP 07002781A EP 1813870 A2 EP1813870 A2 EP 1813870A2
Authority
EP
European Patent Office
Prior art keywords
shut
operative connection
fluid
fluid inlet
fluid outlet
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.)
Withdrawn
Application number
EP07002781A
Other languages
German (de)
English (en)
Other versions
EP1813870A3 (fr
Inventor
Manfred Breunig
Bruno Maas
Roland Hegmann
Rudolf König
Ralph Macenka
Klaus Altenburger
Judith Imgram
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.)
Rational AG
Original Assignee
Rational AG
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 Rational AG filed Critical Rational AG
Priority claimed from EP04818377A external-priority patent/EP1682822B1/fr
Publication of EP1813870A2 publication Critical patent/EP1813870A2/fr
Publication of EP1813870A3 publication Critical patent/EP1813870A3/fr
Withdrawn legal-status Critical Current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
    • F24C14/005—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning using a cleaning liquid

Definitions

  • the invention relates to a cooking appliance with an inner box, comprising a cooking chamber with at least one fluid inlet and at least one fluid outlet, a blower device comprising at least one fan in the inner box, at least one drive shaft for the fan and at least one motor for the drive shaft for circulating at least a part at least one fluid at least in the inner box, at least one reservoir for at least temporarily receiving at least the fluid having at least one fluid inlet and at least one fluid outlet, a filling and / or Golfmengenüberwachungs adopted for the reservoir and a control or regulating device in operative connection with the blower device and / or the filling and / or filling quantity monitoring device.
  • Such cooking devices are well known in the art, see for example the WO 02/068876 A1 .
  • a method and apparatus for cleaning a cooking appliance under supply of fresh water are known, which in particular from the kettle of a steam generator, whether by overfilling the kettle, branches of at least once heated, even boiled water or condensation of vapors in a Wash liquor reservoir is filled, possibly simultaneously with at least one detergent.
  • the wash liquor is then circulated for cleaning, namely from the wash liquor reservoir, which is preferably formed by a steam condenser, in particular provided in the form of a Ablöschkastens, to the suction side of a fan, through the cooking chamber and a Garraumablauf back into the wash liquor reservoir.
  • liquid flow meters such as pulse counters and the like, are used in cooking appliances, see for example US Pat DE 199 12 444 C2 . Fluid flow meters are also prone to failure, require space and are expensive.
  • DT 25 55 052 A1 dishwashers which are located in a completely different technical field than cooking appliances, in which a control device for a program-controlled water supply is provided, wherein the feed of fresh water is controlled in dependence on the motor current of a circulating pump.
  • Object of the present invention is to develop the generic cooking appliance such that the disadvantages of the prior art are overcome.
  • the filling and / or Medmengenüberwachung the speed, the speed fluctuation, the power consumption, the power consumption fluctuation, the power consumption and / or the Strombyschwankung the fan means is at least temporarily detected as a characteristic variable or.
  • At least a part of the fluid is circulated at least in the inner box via at least one pumping device, wherein the pumping device is preferably clocked.
  • the engine preferably in the form of an electrically commutated motor, is in operative connection with the control or regulating device.
  • the reservoir is provided in the inner box, an extinguishing box and / or a kettle of a steam generator.
  • the invention also proposes that the quenching box can be filled via a fourth fluid inlet in operative connection with the inner box, a fifth fluid inlet in operative connection with the kettle and / or a sixth fluid inlet in operative connection with a water conduit.
  • Embodiments of the invention may be characterized in that the kettle is emptied via a seventh fluid outlet in operative connection with the inner box, an eighth fluid outlet operatively connected to the quenching box, and / or a ninth fluid outlet operatively connected to a water drain.
  • the filling and / or filling quantity monitoring device at least partially comprises the blower device and the control and / or regulating device, wherein the filling and / or filling quantity monitoring device preferably also the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth and / or eighteenth obturator and / or pumping means.
  • the time difference t 3 -t 1 represents a characteristic size of the fan wheel in a cooking appliance according to the invention, which can be used to evaluate a filling and / or filling quantity.
  • This time difference is also independent of variable installations in the cooking appliance, such as in the form of different accessories, or from a different loading of the cooking appliance.
  • a cooking appliance 1 comprises an inner box 2, in which a fan 3 is arranged.
  • the fan 3 is connected via a drive shaft 4 with a motor 5.
  • the motor 5 is in turn connected to a control device 8 both via a control line 6 and a measuring line 7.
  • the inner box 2 is connected via a drain line 9 with a quenching box 10, which in turn is connected to the inner box 2 via an outlet member 13 with the interposition of a pump 11 and a wash liquor line 12.
  • the quenching box 10 can be filled with fresh water from a water line 15 via a quenching nozzle 14 with the valve 16 open, the valve 16 communicating via a control line 17 with the control device 8 via a measuring line 18.
  • the fresh water is part of a fluid 19, which is circulated in the cooking appliance 1, in particular during a cleaning process using the pump 11, which is also connected via a control line 20 and a measuring line 21 to the control device 8.
  • the fluid is referred to as wash liquor 19.
  • washing liquor 19 from the circulation circuit of the cooking appliance 1, in particular via the Ablöschkasten 10 with the interposition of a valve 21 are disposed of.
  • the water pipe 15 and the drain 24 may be part of a domestic water network.
  • the valve 21 is connected both via a measuring line 22 and a control line 23 to the control device 8.
  • the valve 16 is only then closed by the control device 8 when a comparison of a first setpoint value for the load bearing of the fan wheel 3 due to a deceleration by the impinging washing liquor 19, the desired filling quantity of Ummélznikonnes the washing liquor corresponds to 19, coincides with the detected via the measuring line 7 actual value of the load absorption. Then the filling monitoring is completed. Following is a Brownmengenauerwachung of circulated from the inner box 2 in the Ablöschkasten 10 and back into the inner box wash liquor 19, so the Fluidumannalznikanks, by evaluating the variance of the speed, ie the speed fluctuations, more precisely, the height of the speed fluctuations of the fan 3 instead.
  • the height of the fluctuations allows to make statements about the circulation rate in the cooking appliance according to the invention. While a homogeneous speed of the fan 3 would indicate no or only a slight influence of the fan 3 by the wash liquor 19, an inhomogeneous speed, which can be evaluated via speed fluctuations, an indication of an intact circulation.
  • a setpoint value of the speed is taken into account as the reference point and filtering is performed.
  • the duty cycle of the pump 11 is taken into account, it should be noted that without clocking the pump 11, the motor 5 adjust to a given load and thus the speed of the fan 3 to a target value harnessreg would, which would not allow the determination of the amount of fluid in Ummélzniklauf.
  • valve 16 is opened until the optimum filling is present.
  • wash liquor 19 may be required in different purification steps, so that different target values are present, with which a comparison is carried out in the course of the cleaning process.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Baking, Grill, Roasting (AREA)
EP07002781A 2003-11-13 2004-11-05 Appareil de cuisson doté d'une surveillance du remplissage et/ou de la quantité de remplissage Withdrawn EP1813870A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10353193 2003-11-13
DE102004012824A DE102004012824B4 (de) 2003-11-13 2004-03-15 Befüllungs- und/oder Füllmengenüberwachungsverfahren in einem Gargerät und Gargerät mit Befüllungs- und/oder Füllmengenüberwachung
EP04818377A EP1682822B1 (fr) 2003-11-13 2004-11-05 Procede pour surveiller le remplissage et/ou la charge dans un appareil de cuisson et appareil de cuisson equipe d'une surveillance de remplissage et/ou de charge

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP04818377A Division EP1682822B1 (fr) 2003-11-13 2004-11-05 Procede pour surveiller le remplissage et/ou la charge dans un appareil de cuisson et appareil de cuisson equipe d'une surveillance de remplissage et/ou de charge

Publications (2)

Publication Number Publication Date
EP1813870A2 true EP1813870A2 (fr) 2007-08-01
EP1813870A3 EP1813870A3 (fr) 2007-08-08

Family

ID=34638151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07002781A Withdrawn EP1813870A3 (fr) 2003-11-13 2004-11-05 Appareil de cuisson doté d'une surveillance du remplissage et/ou de la quantité de remplissage

Country Status (2)

Country Link
EP (1) EP1813870A3 (fr)
DE (1) DE102004012824B4 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010460B4 (de) * 2006-03-03 2016-02-25 Rational Ag Verfahren zur Reinigung eines Gargeräts
DE102007005502A1 (de) 2007-01-30 2008-07-31 Rational Ag Verfahren zur Reinigung eines Gargeräts und Gargerät hierfür
DE102008056324B4 (de) * 2008-11-07 2016-07-07 Rational Ag Verfahren zur Nachbefüllung eines Dampfgenerators mit Wasser, Dampfgenerator dafür und Gargerät damit
DE102010054353A1 (de) 2010-12-13 2012-06-14 Mkn Maschinenfabrik Kurt Neubauer Gmbh & Co. Verfahren zur Berücksichtigung eines Wasserverlustes während eines Garvorganges und Gerät unter Einsatz dieses Verfahrens
DE102014103458A1 (de) * 2014-03-13 2015-09-17 Rational Ag Verfahren zum Reinigen eines Innenraums eines Gargeräts und Gargerät
DE102017119750A1 (de) * 2017-08-29 2019-02-28 Rational Aktiengesellschaft Gargerät mit Reinigungsfunktion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555052A1 (de) * 1975-12-06 1977-06-08 Miele & Cie Steuereinrichtung fuer eine geschirrspuelmaschine mit programmgesteuerte wasserzufuhr
DE19730610C1 (de) * 1997-07-17 1998-10-22 Wiesheu Gmbh Ofen zur Wärmebehandlung von Lebensmitteln und Verfahren zum Reinigen des Innenraums
US6410890B1 (en) * 2000-04-12 2002-06-25 Rational Ag Apparatus and method for cleaning the interior of a cooking device
US20030145847A1 (en) * 2001-02-26 2003-08-07 Martin Deuringer Device and method for cleaning a cooking device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117292C2 (de) * 1990-06-02 1998-04-09 Miele & Cie Verfahren zur Steuerung des Waschvorganges
IT1265578B1 (it) * 1993-11-04 1996-11-22 Zanussi Grandi Impianti Spa Forno di cottura dotato di dispositivi perfezionati di pulitura automatica
DE19912444C2 (de) * 1999-03-19 2001-11-29 Rational Ag Dampfgenerator eines Gargerätes mit einer Vorrichtung zur elektronischen Verkalkungsüberwachung
DE20013489U1 (de) * 2000-08-04 2001-01-18 Flick, Gernot, Dipl.-Ing., 65205 Wiesbaden Messung des Wasserdampfgehaltes im Garraum eines Umluftofens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555052A1 (de) * 1975-12-06 1977-06-08 Miele & Cie Steuereinrichtung fuer eine geschirrspuelmaschine mit programmgesteuerte wasserzufuhr
DE19730610C1 (de) * 1997-07-17 1998-10-22 Wiesheu Gmbh Ofen zur Wärmebehandlung von Lebensmitteln und Verfahren zum Reinigen des Innenraums
US6410890B1 (en) * 2000-04-12 2002-06-25 Rational Ag Apparatus and method for cleaning the interior of a cooking device
US20030145847A1 (en) * 2001-02-26 2003-08-07 Martin Deuringer Device and method for cleaning a cooking device

Also Published As

Publication number Publication date
DE102004012824B4 (de) 2005-10-20
DE102004012824A1 (de) 2005-07-07
EP1813870A3 (fr) 2007-08-08

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