A dishwasher that includes: a tub; a main arm configured to rotate about a first axis and spray water; an auxiliary arm configured to rotate about a second axis and spray water in the interior space; a stationary gear unit configured to rotate based on rotation of the main arm to generate rotational force and including a plurality of gear teeth; an eccentric rotation unit engaged with one or more teeth of the plurality of gear teeth, and configured to, (i) based on rotation of the main arm, rotate to transfer rotational force of the stationary gear unit to the auxiliary arm and, (ii) based on resistance force from the auxiliary arm, control transfer of rotational force of the stationary gear unit to the auxiliary arm; and a link member configured to rotate the auxiliary arm based on rotational force of the stationary gear unit is disclosed.

A washing liquid distribution device may be provided that includes a holder and an impeller. The holder may hold the impeller within a washing chamber of a dishwasher. The impeller may include a disc-shaped body provided with a plurality of impeller blades extending from a surface of the disc-shaped body. The impeller blades may include driving blades being angled in a first direction to cause rotation of the impeller when washing liquid is directed onto the driving blades. The impeller blades may include at least one backflow blade being angled in a second direction, where the second direction is opposite to the first direction. The present disclosure may also relate to a dishwasher including a washing liquid distribution device.

A method for controlling a dishwasher includes: supplying washing water to a sump; rotating an impeller disposed in a washing pump by a washing motor so that the washing water flows into the washing pump from the sump;

operating a heater disposed in the washing pump so as to heat the washing water existing in the washing pump and generate steam to supply to a steam nozzle; and supplying the washing water or steam in the washing pump to the steam nozzle by rotating the impeller at a second set rotational speed lower than a first set rotational speed by the washing motor. The method further includes closing a selector valve, configured to open and close a path between the washing pump and the steam nozzle, when the impeller rotates at the first set rotational speed or higher.

A dishwasher includes a dishwasher cavity configured to receive an item to be washed. A water feed extends completely or partially in the dishwasher cavity for providing a water distribution in the dishwasher cavity. Associated with the water feed is a lighting device having a lighting line extending along a guiding direction of the water feed.

A hydraulically actuated diverter includes a top portion defining a plurality of outlet ports and a bottom portion defining a fluid inlet and being coupled to the top portion to form a diverter chamber. A diverter disk is positioned in the diverter chamber and can move along an axial direction between a first position and a second position. The diverter disk has one or more apertures and may be rotated about the axial direction to selectively place the one or more apertures in fluid communication with the plurality of outlet ports. When water flows through the fluid inlet, the diverter disk moves to the second position and forms a fluid seal with the top portion. To reduce noise resulting from the diverter disk striking the top portion, a strike pad is coupled to and extends from the top portion toward the diverter disk.

An automatic dishwasher configured to implement an automatic treating cycle of operation. The automatic dishwasher having a tub and a dish rack located within the dish treating chamber. The dish rack comprising a bottom wall having a first portion defined by a substantially planar portion extending across a first portion of bottom wall and second portion defined by a depression portion extending across a second portion of bottom wall.

A cup washer includes a tub providing a space in which a cup is accommodated, and a sprayer disposed on the tub and configured to spray water toward the cup. The sprayer includes a first spray nozzle and a second spray nozzle coupled to the first spray nozzle. The second spray nozzle is disposed on a central portion of the first spray nozzle. The first spray nozzle extends away from an outer circumference of the second spray nozzle. The first spray nozzle is rotatable around the second spray nozzle.

A washing apparatus includes a case defining an outer appearance and having therein a washing space to wash an object, a cradle supporting the object in the washing space, a first water nozzle spaced apart above the cradle and for spraying washing water upwards, and a second water nozzle provided in plurality, the plurality of second water nozzles spaced apart in different radial directions with respect to the first water nozzle and for spraying washing water inward of the first water nozzle.

The dishwasher of one embodiment comprises a tub, a sump, a wash pump, a rack, a nozzle disposed at a lower end of the rack, rotated by a repulsive force of wash water supplied from the wash pump, spraying wash water to a wash target, and having a magnetic object coupled to one end of the nozzle so that a first pole and a second pole of the magnetic object face a rotation direction of the nozzle, a sensing module that senses a magnetic force generated by the magnetic object generated by a rotation of the nozzle, and a controller receiving sensing results from the sensing module, and determining one or more of a rotation direction of the nozzle, a rotation speed of the nozzle and whether the nozzle rotates, to output an abnormality notification to a user or control wash water supplied to the nozzle through the wash pump.

A dishwasher includes a tub at least partially forming a treating chamber, a dish rack provided within the wash chamber, and a spray manifold. The spray manifold can have multiple apertures and/or sprayers for emitting wash liquid to define a spray zone.