A dishwasher and method utilize an image-based position sensor that is positioned to sense the rotational position of a discretely directable tubular spray element driven by a tubular spray element drive.

The invention relates to an improved system, device and method for optimized, high volume cleaning of pans, related brush modules, and methods of operating and processing same A pan cleaning system having one or more modular swing arms for cleaning a flow of pans is provided. The system having a frame with a mounting point for each of the modular swing arms and the swing arm pivots about a pivoting element freely motivated by a swing arm actuator and controlled with a swing arm limiter coupled to one or more controllers. The modular swing arm is positioned by the one or more controllers by activating the swing arm actuator to position and to engage a dirty pan from the flow of pans at a pressure range exerted by the actuator and limited by the swing arm limiter such that the pan is cleaned. On one of the modular swing arms, a cleaning module mounting a staggered set of two or more brush heads is provided in offset rows provides overlap during cleaning to overcome compression issues in the brush heads during movement of the pan. Each of the brush heads also having bristles specifically spaced and angled so that they provide consistent contact without laying over one another when compression does occur. Each of the brush heads also rotating so that the rotational moments of each of the brush heads in the two or more brush heads is offset by the equal or paired rotating brush heads. Finally, the controller is provided so that it can sense numerous conditions in the cleaning process, including things like pan height, pan type, the amount of contaminants on the pan, the size of the pan, how much agitation or pressure to apply to the pan, when the pan is passing the cleaning module, whether a jam may be occurring under the module, and similar variables during the cleaning process.

A spraying apparatus and control method therefor and a dishwasher. The spraying apparatus comprises: a spray pipe, a water injection spray pipe being provided on the spray pipe; a drive mechanism, the drive mechanism comprising a driving gear and multiple driven gears engaging with the driving gear, and the driven gear being connected to the spray pipe to drive the spray pipe to rotate; a drive mechanism, the drive mechanism being connected to the driving gear to drive the driving gear to rotate.

A dishwasher may include a sump configured to store water, a main arm disposed at the sump and configured to supply water from the sump, an auxiliary arm rotatably disposed at the main arm and configured to spray water, and an auxiliary arm connection member disposed at the main arm and configured to rotatably support the auxiliary arm, where the auxiliary arm may include an auxiliary flow passage configured to allow water flow through the auxiliary arm, where the main arm may include a transfer flow passage in fluid communication with the auxiliary flow passage, where the auxiliary arm connection member may include a flow tube disposed at the main arm in fluid communication with the transfer flow passage and the auxiliary flow passage.

The present invention relates to a dishwasher. The dishwasher of the present invention comprises: a tub; a sump which is disposed under the tub and in which washing water is stored; a spray arm which is disposed within the tub and sprays the tub with washing water; a pump which supplies the spray arm with washing water stored in the sump; a washing water flow pipe which supplies the spray arm with washing water discharged from the pump; and a bubble generator which is disposed in the spray arm or connection pipe and has a Venturi-tube shape to generate bubbles in washing water flowing therethrough.

A dishwashing appliance and a spray assembly, as provided herein, may include a manifold body, and a cammed diverter valve. The manifold body may be mountable within a wash chamber. The manifold body may define a fluid inlet, a first spray zone, and a second spray zone. The first spray zone may include a first spray outlet. The second spray zone may include a second spray outlet spaced apart from the first spray outlet. The cammed diverter valve may be mounted within the manifold body and be movable between a first zone position and a second zone position. The first zone position may direct wash fluid to the first spray zone and restrict wash fluid to the second spray zone. The second zone position may direct wash fluid to the second spray zone and restrict wash fluid to the first spray zone.

Provided is a dishwasher having an improved structure capable of selecting whether to spray wash water. The dishwasher includes a washing tub, a basket provided in the washing tub to accommodate dishware, a duct provided in the washing tub to be supplied with wash water, a sub-duct mounted on the basket to guide the wash water, a connection pipe connected to the sub-duct, and a spray nozzle coupled to the connection pipe to be rotatable from a first position where the connection pipe is open and a second position where the connection pipe is closed.

An example soaker sink may include a sink basin that receives wash items therein and defines an inlet opening. The soaker sink may further include a manifold that defines an inlet opening, an interior that receives a fluid flow input via the inlet opening, and a plurality of outlets. The outlets may permit discharge of fluid from the interior of the manifold to the sink basin and may include at least a first outlet and may further include a common outlet dimension. The soaker sink may further include a pump fluidically coupled with the inlet opening of the sink basin and the inlet opening of the manifold to recirculate fluid from the sink basin to the manifold. A flow restrictor may be removably coupled with the first outlet and may be configured to modify a flow rate of the fluid discharged via the first outlet.

A dishwasher may include a tub configured to accommodate one or more items to be washed, a spray arm rotatably mounted to the tub, and configured to spray water onto the one or more items to be washed, a sump disposed at a bottom surface of the tub and configured to store water and to supply stored water to the spray arm, a fixed gear unit fixed to the tub with gear teeth arranged along an outer circumferential surface of the fixed gear unit, a rotary gear unit rotatably mounted on the spray arm and configured to engage the gear teeth of the fixed gear unit, and a link member connected to the rotary gear unit and the spray arm, where the spray arm may include, a main arm with a pair of arms, and a pair of auxiliary arms rotatably connected to the main arm.

A dishwasher includes a tub, a spray arm, and a spray arm. The spray arm includes an arm body that defines a plurality of channels that are partitioned from each other and that are configured to carry washing water and a plurality of spray holes configured to discharge washing water from the plurality of channels toward the washing objects. The spray arm further includes a chamber disposed vertically below the arm body and configured to communicate with the plurality of channels; a channel guider configured to supply washing water from the spray arm holder to the chamber; and a channel switch unit accommodated in the chamber and configured to open and close at least a portion of the plurality of channels.