Whirlpool Corporation

Whirlpool Europe B.v.

Peter Schwarzweller

Clemens Jung

Konrad Petry

Reinhold Baltes

Christa Maurer

Josef Buser

Ingrid John

Ralf Wilhelmstatter

The invention relates to a method of operating a dishwasher with a central control unit, by measuring the turbidity of the rinsing liquid and establishing the course of the program as a function of the turbidity of the rinsing liquid. In a pre-rinse operation, measurement values determined by a sensor system are derived from the soiling of the rinsing liquid and supplied to the control unit, which calculates therefrom associated parameters for the further course of the program and establishes the latter correspondingly.

Method of operating a dishwater with a central control unit

The invention relates to a method of operating a dishwasher with a central control unit by measuring the turbidity of the rinsing liquid and establishing the course of the program as a function of the turbidity of the rinsing liquid, the program beginning with a pre-rinse program step. In order to achieve a completely automatic operation, data for the further course of the program are calculated in the pre-rinse program portion with determined measurement values of turbidity and evaluation thereof.

Method of operating a dishwasher with a central control unit by measuring the turbidity

The invention relates to a device for measuring the turbidity of the rinsing liquid in a dishwasher by means of a turbidity sensor. If it is provided according to the invention that the turbidity sensor is incorporated into the inlet flow of the circulation pump into the water drain shaft of the dishwasher and continuously measures the turbidity of the rinsing liquid, that the upper and lower spraying plane can be operated alternately, that a difference value can be derived from the turbidity values associated with upper and lower spray plane, that parameters for the quantity and the type of soiling can be derived from the turbidity values and the difference value and that the further rinse program can be established and controlled with these parameters, then, with low complexity, measurement values for the degree of soiling can be obtained, from which value parameters for the further course of the program can be delivered.

Device for measuring the turbidity of the rinsing liquid in a dishwasher

The invention relates to a method and to a device for carrying out the method for drying crockery in a dishwasher with a rinse container closeable by means of a door. By means of two or three successive different method steps, the drying is improved. The method steps include a drainage phase, a drying phase with blower or condenser and an automatic, partial opening of the door.

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St. Wendel, Germany

Peter Schwarzweller