Electrolux Appliances Aktiebolag

Maciej Zienkiewicz

Finn Svensson

Per-Erik Pers

Giuseppe Dreossi

David Persson

Magnus Wahlberg

Winfried Steiner

Bartosz Dawidiak

Camilla Runnquist

David Hedberg

John Anello

A dishwasher may include a washing chamber and a wash arm arrangement having a wash arm rotatably arranged in the washing chamber, and a satellite spray device arranged on the wash arm. The dishwasher may include at least one sensor configured to sense a rotational position of the wash arm and a control unit configured to monitor consecutive sensed rotational positions of the wash arm. The control unit may be configured to calculate a rotational speed of the wash arm based on an elapsed time and a rotational distance between two sensed rotational positions, and may be configured to estimate a current rotational position of the wash arm based on an elapsed time since a previously sensed rotational position and the calculated rotational speed. The control unit may adapt the pumping intensity of a pump of the dishwasher based on the estimated current rotational position of the wash arm.

Dishwasher

Provided herein is an arrangement for creating a wash zone with in a dishwasher washing chamber. The arrangement may include a spray arm may rotate around an axis; a water pump may feed water to the spray arm; and a support element may rotatably support the spray arm in the washing chamber. The support element may lock the spray arm in at least one position when the pressure in the water fed from the water pump via the support element to the spray arm exceeds a predetermined level. The arrangement may include a control unit arranged to control the operation of the water pump. The control unit may increase the pressure in the water fed from the water pump to the spray arm to lock the spray arm and thereby create the wash zone. A dishwasher including the arrangement and a method for controlling the dishwasher are also provided.

Arrangement for providing a wash zone

A spray arm for a dishwasher is described in which the spray arm may include an inlet for a cleaning liquid, at least one spray nozzle and a feed channel for feeding the cleaning liquid from the inlet to the spray nozzle. In order to prevent larger dirt particles from reaching any of the spray nozzles, a filter may be provided within the feed channel between the inlet and the spray nozzle.

Dishwasher spray arm

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Stockholm, Sweden

Maciej Zienkiewicz