EP3086044A1 - Kochgerät, das einen pyrolytischen reinigungszyklus durchführt - Google Patents

Kochgerät, das einen pyrolytischen reinigungszyklus durchführt Download PDF

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Publication number
EP3086044A1
EP3086044A1 EP16165786.1A EP16165786A EP3086044A1 EP 3086044 A1 EP3086044 A1 EP 3086044A1 EP 16165786 A EP16165786 A EP 16165786A EP 3086044 A1 EP3086044 A1 EP 3086044A1
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EP
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Prior art keywords
temperature
cooking
pyrolysis
cavity
cycle
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EP16165786.1A
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English (en)
French (fr)
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EP3086044B1 (de
Inventor
Abdelaâziz BOUIRDENE
Laurent GRAPAIN
Sylvain Raimond
Valérie RAMDANE
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Groupe Brandt SAS
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Groupe Brandt SAS
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    • 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
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities
    • F24C15/2014—Removing cooking fumes from oven cavities with means for oxidation of cooking fumes

Definitions

  • the present invention relates to a cooking apparatus comprising a cavity, such as a baking oven, implementing a pyrolysis cleaning cycle.
  • the invention also relates to a method of cleaning by pyrolysis.
  • the temperature in the cavity increases gradually from an initial temperature, generally the ambient temperature, to a temperature, called the pyrolysis temperature. Once the cavity reaches the pyrolysis temperature, the temperature is maintained for a predetermined period of time to destroy grease and dirt deposited on walls forming the cavity.
  • the pyrolysis cycle comprises a first phase in which the temperature of the cavity increases from the initial temperature to the pyrolysis temperature (generally a temperature between 480 ° C. and 500 ° C.) according to a temperature curve representative of the evolution of the temperature over time and a second phase in which the cavity is maintained at the pyrolysis temperature.
  • the same cooking apparatus may implement pyrolysis cleaning cycles having different durations, depending for example on a selection made by a user.
  • the time required for carrying out a pyrolysis cleaning cycle is prefixed.
  • a pyrolysis cleaning cycle has a duration of approximately 90 to 150 minutes.
  • the duration of the first phase is equal for all the cycles and the second phase varies according to the cleaning cycle by pyrolysis implemented, usually depending on the degree of soiling of the cavity.
  • the document EP 0 632 232 discloses an oven employing a pyrolysis cleaning cycle.
  • the pyrolysis cleaning cycle is carried out following a firing cycle in order to benefit from the thermal inertia of the cavity at a high temperature relative to the ambient temperature.
  • the time required for the cavity to reach the pyrolysis temperature is shorter than when the pyrolysis cleaning cycle starts with the cavity. at room temperature.
  • the present invention aims to further optimize the duration of a pyrolysis cleaning cycle while obtaining a good cleaning result.
  • the invention aims, in a first aspect, a cooking apparatus having a cavity and means for implementing a pyrolysis cleaning cycle in which the temperature of the cavity increases from an initial temperature up to at a pyrolysis temperature, the rise in temperature over time being carried out according to a first temperature curve.
  • the means for implementing a pyrolysis cycle implement the rise in temperature over time according to said first temperature curve when the initial temperature is below a predetermined temperature and according to a second temperature curve.
  • the second temperature curve comprising at least a substantially linear portion corresponding to a temperature range, the portion having a slope of greater value than the value of the slope of a portion of the first temperature curve corresponding to the temperature range.
  • the pyrolysis cleaning cycle is implemented after the implementation of a firing cycle and the temperature of the cavity is greater than the predetermined temperature, the rise in temperature is faster.
  • the pyrolysis cleaning cycle is therefore shorter than when the cycle starts with a cavity less than the predetermined temperature, for example the ambient temperature.
  • the duration of the pyrolysis cycle is shortened.
  • the heat is homogeneous throughout the cavity, particularly in the walls surrounding the cavity.
  • the cooking apparatus comprising a catalyst for neutralizing the fumes produced in the cavity during the pyrolysis cleaning cycle
  • the pyrolysis cleaning cycle comprises a first part in which the temperature of the cavity increases from the initial temperature. up to an activation temperature of the catalyst, and a second portion in which the temperature increases from the activation temperature of the catalyst to the pyrolysis temperature, said temperature range substantially corresponding to the second portion of the cleaning cycle by pyrolysis.
  • the rapid rise in temperature of the cavity is carried out once the catalyst is activated, the odors and fumes produced in the oven cavity being neutralized.
  • the enamel covering the walls forming the cavity being already hot, it is possible to raise the temperature in the cavity quickly without risk of breaking the enamel.
  • the cooking apparatus comprises an extraction fan for extracting the fumes produced in the cavity during the pyrolysis cleaning cycle, and extraction fan control means configured to control the fan in operation. extraction at a speed of rotation, the speed of rotation of the exhaust fan being a function of the temperature of the cavity.
  • control means of the exhaust fan are configured to operate the exhaust fan at a minimum speed of rotation when the cavity is at the initial temperature and to increase the speed of rotation of the exhaust fan when the temperature of the cavity increases.
  • the extraction of the fumes from the fats burned during the pyrolysis is reduced at the beginning of the cleaning cycle by pyrolysis.
  • the catalyst is not activated and the fumes are not neutralized. Therefore, with this feature, the exhaust fan starts operating at a reduced rotational speed to reduce smoke extraction until the catalyst is active to neutralize odors and fumes.
  • the means for implementing a pyrolysis cleaning cycle comprise heating means configured in such a way that the temperature of the cavity increases according to the first temperature curve or the second temperature curve.
  • the means for implementing the pyrolysis cleaning cycle comprise means for verifying the prior implementation of a firing cycle and comparison means for comparing the initial temperature with the predetermined temperature.
  • the predetermined temperature is substantially equal to 100 ° C.
  • the initial temperature has a value substantially greater than 100 ° C or equal to 100 ° C, and a preliminary cooking cycle has imparted a thermal inertia to the walls of the cavity, the risk of breaking enamel covering the walls of the cavity during a rapid rise in the temperature of the cavity is minimized.
  • the means for verifying the prior implementation of a cooking cycle comprise comparison means for comparing a cooking temperature to a predetermined cooking temperature.
  • the means for implementing a pyrolysis cleaning cycle implement the rise in temperature according to the second temperature curve when the cooking temperature is greater than or substantially equal to the predetermined cooking temperature.
  • the means for verifying the prior implementation of a cooking cycle comprise means for comparing a cooking time of said cooking cycle with a predetermined cooking time.
  • the means for implementing a pyrolysis cleaning cycle implement the rise in temperature over time according to the second curve when a cooking time is greater than or equal to a predetermined cooking time.
  • the means for implementing the pyrolysis cleaning cycle comprise means for determining the period of time elapsed between the end of said at least one firing cycle and the beginning of the pyrolysis cleaning cycle and means comparing the determined period of time with a predetermined period of time.
  • the cooking apparatus thus comprises means configured to check whether the temperature of the cavity, as well as the walls surrounding it, are at a homogeneous temperature and sufficiently high so that the rise in temperature can be implemented according to the second Temperature curve without risk of breaking the email of the walls surrounding the cavity.
  • the means for implementing a pyrolysis cleaning cycle implement the rise in temperature according to the second temperature curve when the period of time elapsed between the end of said at least one cooking cycle and the beginning of the pyrolysis cleaning cycle is less than or substantially equal to a predetermined period.
  • the cooking appliance is a cooking oven.
  • the present invention relates to a pyrolysis cleaning method for a cooking appliance comprising a cavity and implementing a pyrolysis cleaning cycle in which the temperature of the cavity increases from an initial temperature to a temperature pyrolysis, the rise in temperature over time being implemented according to a first temperature curve.
  • the rise in temperature over time is carried out according to said first temperature curve when the initial temperature is below a predetermined temperature and according to a second temperature curve when a cooking cycle has been previously set. and the initial temperature is greater than or substantially equal to the predetermined temperature, the second temperature curve comprising at least a substantially linear portion corresponding to a temperature range, the portion having a slope greater than the value of the slope of the a portion of the first temperature curve corresponding to the temperature range.
  • the pyrolysis cleaning cycle comprises a first part in which the temperature of the cavity increases from the initial temperature to an activation temperature of a catalyst that neutralizes the fumes produced in the cavity during the cleaning cycle. by pyrolysis, and a second portion in which the temperature increases from the activation temperature of the catalyst to the pyrolysis temperature, the temperature range corresponding substantially to the second portion of the pyrolysis cleaning cycle.
  • the pyrolysis cleaning method comprises the control of a fan for extracting fumes produced in the cavity during the pyrolysis cleaning cycle, at a speed of rotation depending on the temperature of the cavity.
  • control of the exhaust fan includes the operation of the exhaust fan at a minimum speed of rotation when the cavity is at the initial temperature, the speed of rotation of the exhaust fan increasing when the temperature of the exhaust fan increases. the cavity increases.
  • the pyrolysis cleaning method comprises the control in operation of the heating means for a predetermined period of time and at a predetermined power so that the temperature of the cavity increases according to the first temperature curve or the second temperature curve.
  • the pyrolysis cleaning method comprises checking the prior implementation of a firing cycle and comparing the initial temperature to the predetermined temperature.
  • the pyrolysis cleaning method comprises determining a period of time elapsed between the end of said one firing cycle and the beginning of said pyrolysis cleaning cycle, the rise in temperature over time being implemented. according to the second temperature curve when said determined period of time is less than a predetermined period.
  • the verification of the prior implementation of a cooking cycle comprises the comparison of a cooking temperature during the pre-cooking cycle with a predetermined cooking temperature.
  • the rise in temperature over time is carried out according to the second temperature curve when the cooking temperature is greater than or substantially equal to the predetermined cooking temperature.
  • the verification of the prior implementation of a cooking cycle comprises the determination of the cooking time of the cooking cycle, and the comparison of the determined cooking time with a predetermined cooking time.
  • the rise in temperature is carried out according to the second temperature curve when the cooking time is greater than or substantially equal to a predetermined cooking time.
  • the predetermined cooking temperature is substantially equal to 140 °.
  • each cooking cycle having an associated partial cooking time, said cooking times corresponding to the sum of said several partial cooking times when the temperature of the cavity is higher. at the predetermined temperature between the implementation of the baking cycles.
  • the pyrolysis cleaning process has characteristics and advantages similar to those previously described in connection with the cooking apparatus.
  • the present invention finds application in a cooking appliance having a cavity, such as a cooking oven or a stove.
  • the figure 1 illustrates a profile diagram of a baking oven 1 having a pyrolysis cleaning feature.
  • the baking oven 1 has a cavity 2 formed by a set of walls 2a, 2b, 2c, and by the door 3 of the baking oven.
  • the set of walls 2a, 2b, 2c and the door 3 of the baking oven 1 forming the cavity 2 constitute the muffle of the baking oven 1.
  • the baking oven 1 further comprises a catalyst 4 having the function of neutralizing fumes and odors produced in the cavity 2 during the pyrolysis cleaning cycle.
  • the catalyst 4 is located in this embodiment on the upper wall 2a.
  • An exhaust fan 6 is placed in a discharge duct 5.
  • the exhaust fan 6 makes it possible to extract the fumes produced in the cavity 2 during the pyrolysis cleaning cycle.
  • the exhaust duct 5 connects the interior of the baking oven 1, in particular the cavity 2, with the outside.
  • the exhaust fan 6 furthermore makes it possible to cool certain parts of the cooking oven 1, notably ensuring the cooling of the door 3, as well as of the electronic card (not shown) notably comprising electrical circuits configured to manage the operation of the baking oven 1.
  • the fumes and odors pass through the catalyst 4 opening on the discharge pipe 5a, and are then brewed and directed by the exhaust fan 6 to the exhaust pipe 5 which leads them to the outside of the cooking oven 1 .
  • the cooking oven 1 comprises heating means arranged on the upper part of the cavity 2 and on the lower part of the cavity 2.
  • These heating means comprise in an exemplary embodiment a high resistance 7a and a low resistance 7b.
  • the high resistance 7a is located inside the cavity 2 and the low resistance 7b is located outside the cavity 2. This low resistance 7b heats the bottom wall 2c.
  • the high resistance 7a and the low resistance 7b are used to heat the cavity 2 during the cooking modes and during the pyrolysis cleaning cycle.
  • the high resistance 7a has a maximum power of 2100 watts and the low resistance 7b has a maximum power of 1200 watts.
  • the baking oven 1 also comprises a stirring fan 8 placed in the cavity 2.
  • This stirring fan 8 can be used during cooking modes, known as "rotating heat” or for certain phases of the pyrolysis cleaning cycle.
  • the stirring fan 8 is here considered as forming part of the heating means.
  • the heating means 7a, 7b, 8 are configured so that the temperature of the cavity 2 changes over time according to the first temp1 temperature curve or the second temp2 temperature curve.
  • the baking oven 1 further comprises at least one temperature sensor (not shown in the figure) for measuring the temperature inside the baking oven 1.
  • the baking oven 1 comprises a temperature probe located in the upper part of the baking oven 1.
  • the temperature of the cavity 2 refers to the temperature in the center of the cavity 2.
  • the cooking apparatus 1 further comprises control and control means (not shown in the figure) managing the operation of the cooking apparatus 1, and in particular the operation of the means used during the implementation of a cleaning cycle by pyrolysis.
  • the figure 2 represents a first temp1 temperature curve and a second temp2 temperature curve.
  • a temperature curve represents the evolution of the temperature T of the cavity 2 in the time t during the implementation of a cleaning cycle by pyrolysis.
  • the first temp1 temperature curve shows a rise in temperature T over time t.
  • This temperature curve temp1 is followed when the cavity 2 is at a temperature below a predetermined temperature.
  • the temperature of the cavity 2 is an ambient temperature.
  • the second temp2 temperature curve represents a temperature rise T in the time t when a firing cycle has been previously implemented and when the pyrolysis cleaning cycle starts, the cavity 2 is at an initial temperature T i greater than the predetermined temperature.
  • this initial temperature T i is about 160 ° C.
  • the cleaning is carried out by pyrolysis after a firing cycle and the predetermined temperature has a value substantially equal to 100 ° C.
  • the value of 100 ° C has been empirically defined so that the temperature rise of the muffle has a good thermal inertia by minimizing the risk of breakage of the enamel.
  • the predetermined temperature could have other values.
  • a pyrolysis cleaning cycle comprises a first phase A1, A2 in which the temperature T of the cavity 2 increases gradually from an initial temperature T i to the pyrolysis temperature T p and a second phase B1, B2 in which the pyrolysis temperature T p is maintained.
  • the initial temperature T i is substantially equal to the ambient temperature or external temperature of the baking oven 1.
  • This ambient temperature can thus vary within a range of values of between 15 ° C. and 35 ° C. and has a typical value of 20 ° C.
  • the initial temperature T i is of course greater than the ambient temperature.
  • the pyrolysis temperature T p has a value between 480 ° and 500 °.
  • the first phase A1, A2 of the pyrolysis cycle comprises a first portion A1 ic, A2i-c in which the temperature of the cavity 2 increases from the initial temperature T i to the activation temperature T c of the catalyst 4, and a second portion A1c-p, A2c-p in which the temperature of the cavity 2 increases from the activation temperature T c of the catalyst 4 to the pyrolysis temperature T p .
  • Activation temperature T c of catalyst 4 is understood to mean the temperature from which catalyst 4 is sufficiently hot to catalyze the fumes produced during a pyrolysis cleaning cycle.
  • the activation temperature T c of the catalyst 4 is between 250 ° C and 350 ° C.
  • the pyrolysis temperature T p is the temperature at which the cavity 2 must be maintained in order to efficiently perform the decomposition of the organic compounds.
  • the pyrolysis temperature T p is arbitrarily defined and is greater than the theoretical temperature from which the decomposition reaction of the organic compounds begins.
  • the temperature of the cavity 2 increases over time according to the first temp1 temperature curve .
  • the heating means (resistors 7a, 7b and system fan 8) are configured such that the temperature of the cavity 2 increases according to the first temp1 temperature curve.
  • the temperature of the cavity 2 increases from the initial temperature T i to the pyrolysis temperature T. p according to the second temp2 temperature curve.
  • the heating means (resistors 7a, 7b and stirring fan 8) are configured so that the temperature of the cavity 2 increases according to the second temp2 temperature curve.
  • the second temp2 temperature curve comprises at least one substantially linear portion temp2 (1) corresponding to a temperature interval I T.
  • the temperature range I T substantially corresponds to the temperatures at the beginning and at the end of the second portion A1c-p, A2c-p of the pyrolysis cleaning cycle, i.e. the temperature range I T corresponds to the interval between the activation temperature T c of the catalyst 4 and the pyrolysis temperature T p .
  • the portion temp2 (1) of the second temperature curve temp2 has a slope ⁇ 2 of value greater than the value of the slope ⁇ 1 of a portion temp1 (1) of the first temperature curve temp1 corresponding to the same temperature interval I T .
  • the pyrolysis temperature T p is reached more rapidly when the rise in temperature is implemented according to the second temp2 temperature curve.
  • the enamel is preserved from a possible breakage.
  • the extraction fan 6 operates at a rotation speed which is a function of the temperature of the cavity 2.
  • the operation of the exhaust fan 6 is controlled by control means (not shown in the figures) of the exhaust fan 6.
  • the exhaust fan 6 is operated at a minimum speed of rotation when the cavity 2 is at the initial temperature T i .
  • control means When the temperature of the cavity 2 increases, the control means operate the exhaust fan 6 at a higher rotational speed.
  • the exhaust fan 6 operates at a first speed of rotation corresponding to the speed of rotation. minimum rotation, and in the second part A1c-p, A2c-p of the first phase A1, A2 of the pyrolysis cleaning cycle, the Exhaust fan 6 operates at a second rotation speed which is higher than the minimum rotational speed.
  • the rotation speed of the extraction fan 6 increases gradually and in proportion to the increase in the temperature of the cavity 2 from the initial temperature T i to the pyrolysis temperature T p .
  • the speed of rotation of the exhaust fan 6 may increase stepwise or linearly.
  • the speed of rotation of the exhaust fan 6 has a minimum value when the temperature is below a predefined temperature, for example of a value substantially equal to 200 ° C.
  • the rotational speed can increase linearly as the temperature increases between the first preset temperature and the pyrolysis temperature T p (about 500 ° C).
  • the rotation speed of the exhaust fan is 45% of its maximum rotation speed and increases linearly until the cavity 2 has a temperature substantially lower than the pyrolysis temperature T p , for example 494 ° C, the rotational speed is then 76% of its maximum rotational speed.
  • the rotation speed of the exhaust fan 6 operates at its maximum rotational speed.
  • the baking oven 1 further comprises means for verifying the prior implementation of a cooking cycle and comparison means (not shown in the figures) to compare the initial temperature T i of the cavity 2 to the predetermined temperature.
  • the means for verifying the prior implementation of a cooking cycle comprise comparison means (not shown) for comparing a cooking temperature T u of the pre-cooking cycle with a predetermined cooking temperature.
  • the firing temperature T u predetermined has for example a value of 140 ° C.
  • This value of 140 ° C corresponds to a minimum temperature of the walls 2a, 2b, 2c of the muffle and could of course have other values.
  • the cooking oven 1 further comprises storage means in which the cooking temperature T u in a cooking cycle is stored.
  • the storage temperature T u stored can be the set temperature of the cooking cycle.
  • the cooking temperature stored u T may be the temperature measured during the cooking cycle.
  • the means for verifying the prior implementation of a cooking cycle include means for determining the cooking time and means for determining the period of time elapsed between the end of a cooking cycle and the beginning of a pyrolysis cleaning cycle, as well as means for comparing the cooking time with a predetermined cooking time and means for comparing said determined period of time with a predetermined period of time.
  • the heating means are configured so that the temperature of the cavity 2 follows in time t a temperature curve temp1, temp2.
  • the temperature rise of the cavity 2 is implemented according to said temperature curve.
  • the heating means comprise in particular the high resistance 7a, the low resistance 7b and the stirring fan 8.
  • the heating means 7a, 7b, 8 are controlled in operation so that the temperature in the cavity 2 increases in time t according to the second temp2 temperature curve.
  • the high resistance 7a is fed at 83% of its maximum power (here 1750 watts).
  • the high resistance 7a is powered at full power, that is to say at 100% of its power (2100 watts in this example)
  • the low resistance 7b is fed at 80% of its power (here 960 watts) and the mixing fan 8 is activated.
  • control means managing the operation of the furnace control the maintenance of the temperature of the cavity 2 at the pyrolysis temperature T p (for example 492 °).
  • the means of heating 7a, 7b, 8 are controlled in operation so that the temperature of the cavity 2 increases in time t according to the first temperature curve temp1.
  • the heating means 7a, 7b, 8 are operated in the following manner.
  • the high resistance 7a is fed at 83% of its maximum power (here 1750 watts).
  • the high resistance 7a is activated at 100% of its maximum power (for example 2100 watts) during a first predefined period and then deactivated for a second predefined period the first predefined period has a value of 50 seconds and the second predefined period has a value of 10 seconds.
  • the high resistance 7a is activated periodically every 50 seconds over 60 seconds, which allows an average power supply at 83% of its maximum power.
  • the second portion A1c-p of the first phase A1 of the pyrolysis cleaning cycle is divided into three partial phases.
  • the high resistance 7a functions, as for the first part A1ic of the first phase A1, to 83% of its maximum power and the low resistance 7b operates at 33% of its maximum power, for example by operating at full power periodically for 20 seconds over 60 seconds.
  • the high resistance 7a is activated at 80%, for example by feeding it at full power periodically for 48 seconds on 60 seconds and the low resistance 7b is activated at full power (here 1200 watts)
  • the high resistance 7a is put into operation at full power
  • the low resistance 7b is operated at full power periodically for 48 seconds for 60 seconds (80% of its maximum power)
  • the stirring fan 8 is activated.
  • the control means managing the operation of the cooking oven 1 control the maintenance of the temperature of the cavity 2 at the pyrolysis temperature T p , for example at 492 ° C.
  • the predefined periods of activation of the heating means 7a, 7b, 8, as well as the heating powers may be different in order to be able to reproduce the temperature curves temp1, temp2.
  • the figure 3 represents an embodiment of a pyrolysis cleaning method according to the invention.
  • the pyrolysis cleaning process carried out in a cooking appliance 1, such as a cooking oven such as that shown in FIG. figure 1 comprises a step of verifying the prior implementation of a cooking cycle E1.
  • the pyrolysis cleaning process further comprises a comparison step E2 of the initial temperature T i of the cavity 2 with a predetermined temperature.
  • the predetermined temperature has a value of 100 ° C.
  • This value of 100 ° C has been determined empirically for the temperature rise to benefit from the thermal inertia of the muffle, and may, of course, have other different values.
  • the rise in temperature is carried out according to the first temp1 temperature curve .
  • the rise in temperature over time is implemented according to the first temp1 temperature curve .
  • the verification E1 of the prior implementation of a cooking cycle comprises a comparison step E3 of a cooking temperature T u with a predetermined cooking temperature.
  • This cooking temperature T u corresponds to the baking cycle cooking temperature prior to the pyrolysis cleaning cycle.
  • the cooking temperature T u may, for example, be set by a user of the baking oven 1 by means of a man-machine interface comprising control members and displays or may be automatically defined by a calculator in a specific cooking mode. .
  • the predetermined cooking temperature has, for example, a value of 140 ° C.
  • This value of 140 ° C corresponds to a minimum temperature of the walls 2a, 2b, 2c of the muffle and could of course have other values.
  • the rise in temperature over time is implemented according to the first temperature curve temp1.
  • the temperature of the cavity 2 does not have a value sufficient for the temperature rise during the pyrolysis cleaning cycle to benefit from a thermal inertia.
  • the rise in temperature over time is implemented according to the second temp2 temperature curve.
  • the verification E1 of the prior implementation of a cooking cycle comprises a step of determining the cooking time of the cooking cycle implemented prior to the pyrolysis cleaning cycle, as well as a comparison step E4 of the determined cooking time with a predetermined cooking time t c .
  • the rise in temperature is implemented according to the second temp2 temperature curve.
  • the cooking temperature T u is at least 140 ° C.
  • the determination of the cooking time is equivalent to determining the time during which the cooking temperature T u is greater than or substantially equal to the predetermined cooking temperature (in this case 140 ° C.).
  • the temperature is implemented according to the first temp1 temperature curve .
  • the predetermined cooking time t c is 25 min.
  • the cooking time was determined empirically so that the cavity 2 of the baking oven 1 operated at a baking temperature T u of at least 140 ° C has thermal inertia when the rise in temperature follows the second curve. temp2 temperature .
  • the predetermined cooking time t c may be composed of several partial cooking times associated with different cooking cycles carried out for a duration less than the predetermined cooking time t c .
  • the temperature of the cavity 2 between cooking cycles must not fall below the predetermined temperature (here of 100 ° C.).
  • these cooking times of 15 minutes form a single cooking time when the temperature of the cavity 2 is greater than the predetermined temperature during and between the implementation of the three baking cycles.
  • step E1 it is verified that a cooking cycle has been carried out at a minimum cooking temperature and / or during a minimum cooking time in order to benefit from the thermal inertia of the oven. muffle.
  • comparison steps E2, E3, E4 can be implemented in the aforementioned order, or in any other order.
  • the cleaning method can be implemented according to several embodiments.
  • the pyrolytic cleaning process comprises the step of comparing an initial temperature T i with the predetermined temperature E2 and E3 the step of comparing the cooking temperature T u with the cooking temperature predetermined.
  • it comprises the comparison step E2 of the initial temperature T i with the predetermined temperature, the comparison step E3 of the cooking temperature T u with the predetermined cooking temperature, and the comparison step E4 of the cooking time at the predetermined cooking time t c .
  • it comprises the comparison step E2 of the initial temperature T i with the predetermined temperature, and the comparison step E4 of the cooking time with the predetermined cooking time t c .
  • the pyrolysis cleaning process may further comprise a step of determining (not shown) the period of time elapsed between the end of a firing cycle and the beginning of a pyrolysis cleaning cycle. and a step of comparing this determined elapsed time period with a predetermined period of time.
  • the rise in temperature is carried out according to the second temp2 temperature curve.
  • the rise in temperature is implemented according to the first temp1 temperature curve .
  • the temperature rise in time is carried out by first temp1 temperature curve.
  • the temperature rise in time is carried out by first temp1 temperature curve .
  • the pyrolysis cleaning process comprises the step of checking the cooking temperature T u with the predetermined cooking temperature, when the cooking temperature T u is lower than the predetermined cooking temperature, the rise in temperature over time is implemented according to the first temp1 temperature curve .
  • the pyrolysis cleaning process may further include a verification of the cooking time, as well as the period of time between the end of a cooking cycle and the beginning of a pyrolysis cleaning cycle.
  • the cooking temperature in a cooking cycle is at least 140 ° C.
  • the cooking time is equivalent to the cooking time during which the cooking temperature T u is greater than or substantially equal to the predetermined cooking temperature.
  • the rise in temperature is implemented according to the first temp1 temperature curve .
  • the firing temperature T u is greater than or substantially equal to the predetermined firing temperature.
  • the cooking time is greater than or substantially equal to the predetermined cooking time t c, and optionally the time period elapsed between the end of the cooking cycle and the beginning of the cleaning cycle is greater than or substantially equal to a predetermined period, the rise in temperature over time is implemented according to the second temp2 temperature curve.

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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)
  • Baking, Grill, Roasting (AREA)
EP16165786.1A 2015-04-21 2016-04-18 Kochgerat, das einen pyrolytischen reinigungszyklus durchführt und entsprechendes reinigungsverfahren Active EP3086044B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1553555A FR3035482B1 (fr) 2015-04-21 2015-04-21 Appareil de cuisson mettant en oeuvre un cycle de nettoyage par pyrolyse

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EP3086044A1 true EP3086044A1 (de) 2016-10-26
EP3086044B1 EP3086044B1 (de) 2020-08-05

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EP (1) EP3086044B1 (de)
ES (1) ES2826724T3 (de)
FR (1) FR3035482B1 (de)

Cited By (1)

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EP4083513A1 (de) * 2021-04-26 2022-11-02 Miele & Cie. KG System, umfassend ein gargerät mit einem garraum und eine dunstabzugsvorrichtung, und verfahren zum betrieb des systems

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CN111412504B (zh) * 2020-03-31 2022-04-29 佛山市顺德区美的洗涤电器制造有限公司 烹饪设备的开启检测方法及装置、吸油烟机和存储介质
DE102021202127A1 (de) * 2021-03-04 2022-09-08 BSH Hausgeräte GmbH Betreiben eines pyrolysefähigen Haushaltsgargeräts

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DE3700136A1 (de) * 1987-01-03 1988-07-14 Gaggenau Werke Verfahren zum pyrolitischen reinigen eines backofens
FR2673268A1 (fr) * 1991-02-21 1992-08-28 Scholtes Ets Eugen Four de cuisson electrique a usage domestique.
US5286943A (en) * 1991-08-19 1994-02-15 Bosch-Siemens Hausgeraete Sensor-controlled oven pyrolysis utilizing fuzzy logic control
EP0632232A1 (de) 1993-07-01 1995-01-04 Bosch-Siemens HausgerÀ¤te GmbH Herd mit pyrolytischer Selbstreinigung
EP0878667A2 (de) * 1997-05-16 1998-11-18 General Domestic Appliances Limited Kochofen mit pyrolitischer Selbstreinigung
US6232584B1 (en) * 1999-12-15 2001-05-15 Whirlpool Corporation System for controlling a self cleaning oven having catalyst temperature control

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DE3700136A1 (de) * 1987-01-03 1988-07-14 Gaggenau Werke Verfahren zum pyrolitischen reinigen eines backofens
FR2673268A1 (fr) * 1991-02-21 1992-08-28 Scholtes Ets Eugen Four de cuisson electrique a usage domestique.
US5286943A (en) * 1991-08-19 1994-02-15 Bosch-Siemens Hausgeraete Sensor-controlled oven pyrolysis utilizing fuzzy logic control
EP0632232A1 (de) 1993-07-01 1995-01-04 Bosch-Siemens HausgerÀ¤te GmbH Herd mit pyrolytischer Selbstreinigung
EP0878667A2 (de) * 1997-05-16 1998-11-18 General Domestic Appliances Limited Kochofen mit pyrolitischer Selbstreinigung
US6232584B1 (en) * 1999-12-15 2001-05-15 Whirlpool Corporation System for controlling a self cleaning oven having catalyst temperature control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4083513A1 (de) * 2021-04-26 2022-11-02 Miele & Cie. KG System, umfassend ein gargerät mit einem garraum und eine dunstabzugsvorrichtung, und verfahren zum betrieb des systems

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FR3035482B1 (fr) 2018-09-14
ES2826724T3 (es) 2021-05-19
FR3035482A1 (fr) 2016-10-28
EP3086044B1 (de) 2020-08-05

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