An automatic dishwasher having a wash tub defining at least a portion of a wash chamber, a first sprayer mounted within the wash chamber for rotatable movement therein, a liquid flow path fluidly coupling the wash chamber to the first sprayer, a valve assembly located within the liquid flow path and having a valve element rotatable about a first axis of rotation and between at least first and second positions to selectively divert liquid in the liquid flow path to the first sprayer and a drive system.

Example intelligent dishwashing systems and methods are described. In one implementation, a system includes an imaging system configured to capture at least one image of an article of dishware. A processing system analyzes the at least one image to determine a presence and a location of a stain on the article of dishware. Responsive to determining the presence of a stain, a cleaning system is configured to clean the location of the stain on the article of dishware.

A warewash machine for washing wares includes a chamber for receiving wares, the chamber having at least one spray zone. A spray system is provided in the spray zone for spraying liquid onto wares for cleaning. A tank captures sprayed liquid that falls within the spray zone. The tank includes a primary recirculation path for delivering liquid from the tank to the spray system, and a secondary recirculation path for delivering water out of the tank and back into the tank, without spraying within the spray zone, in order promote mixing within the tank.

The present invention relates to a dishwasher and a manufacturing method thereof.

The dishwasher according to an embodiment of the present invention includes a water guide extending upward from a sump and supplying washing water to an upper nozzle and a top nozzle, and the upper pipe and the top pipe are separately provided to the water guide, so pressure of the washing water applied to the upper pipe and the top pipe can be reduced.

The present invention relates to a dishwasher and a manufacturing method thereof.

The dishwasher according to an embodiment of the present invention includes a water guide extending upward from a sump and supplying washing water to an upper nozzle and a top nozzle, and the upper pipe and the top pipe are separately provided to the water guide, so pressure of the washing water applied to the upper pipe and the top pipe can be reduced.

Provided are systems, methods, and apparatus for spraying water in a dishwasher. A dishwasher may include a wash chamber and at least one dish rack. The dishwasher may include a water inlet selectively connected to a dish spray device, which may connect a dish spray conduit with the wash chamber. The dish spray device may be oriented towards the at least one dish rack, such that the spray device may be configured to direct water onto the dishes for washing. The water inlet may be selectively connected to a fill device, which may connect the fill conduit with the wash chamber. The fill device may be configured to provide water to the circulation assembly without impinging the at least one dish rack. The one or more valves may selectively direct water from the water inlet to one or both of the dish spray device and the fill device.

The present invention relates to a dishwasher for washing the dishes and the cooking utensils by spraying washing water, and a control method thereof. The control method of a dishwasher according to an embodiment of the present invention includes: a water supply step of opening a water supply valve to supply washing water to the sump; and a variable spray step of spraying the washing water by at least one of the plurality of spray arms by changing the number of revolutions of the washing pump stepwise, so that the washing water can be sprayed evenly.

Provided are a method of detecting a change in process water flow of a circulation pump in an appliance for washing and rinsing goods, and an appliance performing the method. An appliance for washing and rinsing goods may be provided including a circulation pump, a sensing arrangement arranged to measure a property indicating torque of the circulation pump, and a controller. The controller may be arranged to average a first set of values of the measured property, thereby creating a first average, average at least a further set of values of the measured property, thereby creating at least one further average, compare the first average with the at least one further average, and to detect change in process water flow of the circulation pump based on a difference between the first average and the at least one further average.

A method of operating a dishwasher appliance includes initiating a wash cycle of the dishwasher appliance. The wash cycle includes operating the dishwasher appliance in a wash mode for a first predetermined amount of time by positioning a diverter in a first position to direct a fluid flow to a spray assembly of the dishwasher appliance. The method also includes positioning the diverter in a second position to direct the fluid flow to a filter cleaning manifold for a second predetermined amount of time. The method further includes sensing the second position of the diverter with a position sensor. The method further includes performing a predetermined action after the second predetermined amount of time when the second position of the diverter is sensed before the first predetermined amount of time has elapsed.

A dishwasher utilizing one or more sprayer rings disposed proximate to one or more tines of a dishwasher rack, where the sprayer ring(s) are in fluid communication with a fluid supply that is configured to supply a fluid to the one or more sprayer rings to spray fluid onto utensils disposed within the wash tub.