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AssigneeRational AG
InventorsMartin Deuringer, Hubert Brunner, Elmar Junker, Manfred Breunig, Michael Herner, Judith Imgram, Peter Wiedmann
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The invention is directed to an apparatus and to a method for cleaning a cooking appliance comprising a heater, a blower, a steam generator, a cooking chamber, a cooking chamber drain, a steam condenser and a cooking appliance drain, whereby the steam condenser is arranged between the cooking chamber drain and the cooking appliance drain. Further, a fluid from the steam generator and from a washing liquid reservoir, comprising water, cleaning agent, rinsing agent, wetting agent, decalcification agent and/or waste products arising when cooking a product in the cooking chamber can be distributed in the cooking chamber for the cleaning thereof, and/or a washing liquid reservoir is filled at least partially by means of preferably step-by-step, at least partial over-filling of the steam generator with water, and the washing liquid from the washing liquid reservoir, comprising water, cleaning agent, rinsing agent, wetting agent, decalcification agent and/or waste products arising when cooking a product in the cooking chamber, is circulated via the blower, preferably controlled and/or regulated.
Apparatus for cleaning a cooking appliance (1) comprising a heater (6), a blower (5), a steam generator (7), a cooking chamber (2), a cooking chamber drain (20), a steam condenser (12) and a cooking appliance drain (13), whereby the steam condenser (12) is arranged between the cooking chamber drain (20) and the cooking appliance drain (13), characterized in that a fluid obtained by condensing a steam from the steam generator (7) and/or the cooking chamber (2) and/or obtained from a fluid heated at least to a temperature for the precipitation of carbonates and/or obtained from a washing liquid reservoir (12) for a washing liquid comprising water (8) and/or cleaning agent such as at least one cleaner, one rinsing agent, one wetting agent and/or decalcification agent and/or waste products arising when cooking a product in the cooking chamber (2) can be distributed in the cooking chamber (2) for the cleaning thereof.
Apparatus according to one of the preceding claims, characterized in that water that has been heated at least once in the steam generator (7) at least to a temperature for the precipitation of carbonates, preferably boiled at least once, can be supplied to the washing liquid reservoir (12) and/or the quenching box (12).
Apparatus according to one of the preceding claims, characterized in that water (8) that is preferably heated, particularly heated to a temperature for the precipitation of carbonates, can be supplied from the steam generator (7) to an intake region of the blower (5).
Apparatus according to one of the preceding claims, characterized in that the washing liquid can be supplied from the washing liquid reservoir (12) to an intake region of the blower (5).
Apparatus according to one of the preceding claims, characterized in that water (8) from the steam generator (7) that is preferably heated, particularly heated to a temperature for the precipitation of carbonates and the washing liquid from the washing liquid reservoir (12) can be supplied to different regions of the blower (5), preferably to opposite sides of the blower (5).
Apparatus according to one of the preceding claims, characterized by an air baffle means (4) for the at least region-by-region separation of the cooking chamber (2) from a blower chamber (3) for the blower (5), whereby a first conduit (19) for the washing liquid is attached to the air baffle means (4), preferably rigidly.
Apparatus according to one of the preceding claims, characterized in that the washing liquid and a swathing fluid are at least partly transported in a shared conduit system, whereby the conduit system preferably comprises double lines and/or the first and/or the second line (19) can also be used for the introduction of swathing fluid.
Apparatus according to one of the preceding claims, characterized by at least one first pump (18) between the washing liquid reservoir (12) and the cooking chamber (2) for conveying the washing liquid and/or the swathing fluid, preferably controlled and/or regulated.
Apparatus according to one of the preceding claims, characterized in that the washing liquid reservoir (12) is connectable to at least one wetting agent reservoir, preferably in the form of a drawer or sliding box (21), particularly upon interposition of a first valve (25) and/or of a pump, to a cleaner reservoir, preferably in the form of a drawer or a sliding box (23), particularly upon interposition of a second valve (26) and/or of a pump, and/or to a decalcification agent reservoir, preferably in the form of a drawer or a sliding box, particularly upon interposition of a third valve and/or of a pump.
Apparatus according to one of the preceding claims, characterized in that the cooking chamber drain (20) and/or the cooking appliance drain (13)can be at least partially closed, particularly mechanically, via a closure element, whereby the closure element preferably comprises a tappet (14, 15, 16), a ball valve, a drain trap, a solenoid, a slide and/or a flap.
Apparatus according to one of the preceding claims, characterized by a parting element in the cooking appliance drain (13) via which the cooking appliance drain (13) can be divided into at least two lines, whereby greases can preferably be eliminated via one line and essentially grease-free waste water can be eliminated via the other line, particularly in an interactive connection with the overflow opening.
Apparatus according to one of the preceding claims, characterized in that a vent pipe (11) discharges into the washing liquid reservoir (12).
Apparatus according to one of the preceding claims, characterized in that the washing liquid reservoir (12) comprises an overflow line via which waste water flows off only given blockages of the cooking appliance drain (13), whereby the overflow line (17) is preferably sealed vapor-tight relative to the washing liquid reservoir (12) via an hydraulic seal.
Apparatus according to 00, characterized in that an hydraulic seal for protecting the first pump (18) against hot fumes is arranged between the washing liquid reservoir (12) and the first pump (18).
Apparatus according to one of the preceding claims, characterized in that the steam generator (7) is connectable to the washing fluid reservoir (12), particularly via the vent pipe (11), preferably upon interposition of a second pump (9).
Apparatus according to one of the preceding claims, characterized in that the washing fluid reservoir is embraced by the steam condenser (12).
Apparatus according to one of the preceding claims, characterized by at least one sensing unit for the acquisition of cooking chamber properties such as degree of contamination of the cooking chamber, material of the cooking chamber, temperature in the cooking chamber, degree or air movement in the cooking chamber and/or the like, of cooking appliance operating conditions such as operating mode, operating time, type of product cooked, weight of product cooked, frequency with which the cooking chamber door is opened and/or the like, and/or of washing liquid properties such as degree of contamination, degree of calcification, grease content, hardness and/or the like.
Apparatus according to one of the preceding claims, characterized by a control and/or regulating device in an interactive connection with the heater, the blower, the steam generator, the first pump, the second pump, the first valve, the second valve, the third valve, the closure element, the grease sensor and/or the sensing unit.
Dependencies are inferred from the claim text.