Abstract: A fluid filtration assembly for a dishwasher system is described. The dishwasher system includes a tub defining a wash chamber configured to receive dishwasher contents. The fluid filtration assembly includes a filter assembly having a filter material, a filter fluid inlet, and a filter fluid outlet. The filter fluid inlet is in flow communication with the wash chamber and the filter material. The filter assembly further includes a cleaning fluid inlet that is configured to backflush the filter material. The filter fluid outlet is in flow communication with both the cleaning fluid inlet and the filter fluid inlet. The fluid filtration assembly further includes a valve assembly in flow communication with the cleaning fluid inlet through a first flow path.

Abstract: The present invention provides a diverter that may be used to control the flow of fluid to different locations or components within a dishwashing appliance. One or more dual outlets, each having an outer port that surrounds an inner port, can be used with rotating disk (or rotating valve) to selectively control the flow of fluid to various locations within the appliance. One or more single outlets may also be added to the diverter as desired depending upon the number of locations in the dishwasher to which the delivery of the fluid is desirable.

Abstract: A dishwasher spray arm assembly has a spray arm rotationally configured on a conduit. The spray arm includes a lower spray arm component mated with an upper spray arm component with an internal space defined between the upper and lower spray arm components. A bearing is interposed between the spray arm and conduit to conduct water from said conduit into the internal space, with the spray arm rotatably configured on the bearing. The bearing further includes a lower shaft section that mates with the conduit and an upper disc section sandwiched between the upper and lower spray arm components. A low-friction washer is disposed between the upper disc section and the lower spray arm component. The lower spray arm component and the disc section define a tortuous interference path for water to leak out from the internal space around the bearing.

Abstract: A spray assembly for a dishwasher appliance is provided. The spray assembly includes a base unit and a mounting bracket rotatably mounted to the base unit. A spray arm is selectively secured to the mounting bracket. The mounting bracket includes features for engaging the spray arm and hindering undesired detachment of the spray arm from the mounting bracket.

Abstract: The present subject matter provides a spray assembly for a dishwasher appliance. The spray assembly includes a spray arm, a bearing, and a bracket for mounting the spray assembly to a dishwasher appliance. The spray arm is mounted for rotation relative to the bearing, and the bearing is mounted to the bracket. The spray assembly includes features for rotating the bearing relative to the bracket with the spray arm. Such rotation can assist with mounting of the bearing to the bracket.

Abstract: An adjustable filter system for a dishwashing appliance is provided. More specifically, a filter system is provided whereby the relative amount of fluid filtered by two different filters can be selectively controlled during operation of the dishwashing appliance. Flow can be directed primarily to one filter or the other depending upon the size of the soil particles expected at certain times during the cleaning process. Selection can be e.g., based on the temperature of fluid used in the appliance or determined by a controller.

Abstract: A dishwashing appliance is provided that has a heating element shaped to allow a user to access a filter while avoiding contact with the heating element. The heating element is spaced apart from the filter and shaped or positioned relative to the filter such that a user may access the filter for cleaning or replacement while avoiding contact with the heating element. In one embodiment, the heating element extends in the wash chamber along the lateral direction but without crossing the centerline of the wash chamber in front of the filter.

Abstract: A dishwasher appliance is provided with a spray arm assembly. The spray arm assembly defines an orifice for directing liquid out of the spray arm assembly. The orifice can selectively receive a nozzle with a particular outlet geometry. By selectively receiving the nozzle, a spray pattern of liquid exiting the orifice can be changed by replacing or modifying the nozzle without remanufacturing or replacing the spray arm assembly.

Abstract: Gravity and flow operated diverter valves are disclosed for diverting liquid flow from one source to either of two output destinations, the valves including a housing defining an inlet opening through a base wall, a first outlet opening through a first upper wall and a second outlet opening through a second upper wall. A valve member is movably suspended within the housing by a first end when no liquid is flowing into the inlet opening. The valve member is pivotable in a first direction to seal the first outlet opening and pivotable in a second direction to seal the second outlet opening. On successive liquid flows into the inlet opening the valve member automatically and alternatingly seals the first outlet opening and the second outlet opening. Related dishwasher designs are also disclosed.

Abstract: The present subject matter provides an appliance with features for determining a time interval for liquid flowing into and/or out of the appliance. For example, a flow of liquid into and/or out of a wash chamber of the appliance is initiated, and a first time is noted. A turbidity sensor is monitored until the sensor detects liquid or air respectively, and a second time is logged. A time interval is calculated based at least in part on the first time and the second time.

Abstract: The present subject matter provides a base element for an appliance. The base element includes a projected portion and an inset portion. The inset portion has a different height than the projected portion such that the inset portion is configured for receipt of flooring.

Abstract: An adjustable filter system for a dishwashing appliance is provided. More specifically, a filter system is provided whereby the relative amount of fluid filtered by two different filters can be selectively controlled during operation of the dishwashing appliance. Flow can be directed primarily to one filter or the other depending upon the size of the soil particles expected at certain times during the cleaning process. Selection can be e.g., based on the temperature of fluid used in the appliance or determined by a controller.

Abstract: The present invention provides a diverter that may be used to control the flow of fluid to different locations or components within a dishwashing appliance. One or more dual outlets, each having an outer port that surrounds an inner port, can be used with a rotating disk (or rotating valve) to selectively control the flow of fluid to various locations within the appliance. One or more single outlets may also be added to the diverter as desired depending upon the number of locations in the dishwasher to which the delivery of the fluid is desirable.

Abstract: A dishwasher has a wash chamber and sump disposed below the wash chamber, wherein wash fluid supplied to the wash chamber collects in the sump. A main pump is configured to drawn wash fluid from the sump and supply the wash fluid to the wash chamber, for example via spray arm assemblies. A filter is operably disposed to filter the wash fluid recirculated by the main pump. A backflush line has an outlet disposed downstream of the filter, and a backflush pump is configured to supply backflush fluid through the backflush line against the filter. A reservoir separate from the sump is provided and sized to hold a measured amount of fluid. The backflush pump draws the backflush fluid from the reservoir at a defined time.

Abstract: Tines that can provide a spray into the interior of containers placed onto a rack of a dishwasher are provided. More particularly, hollow tines or tines having an internal fluid path for feeding washing fluid to one or more openings at or near an upper end of the tines are described. As a fluid is sprayed or ejected from the opening(s), it provides for the cleaning of the interior of glasses, containers, and other dishes placed over the tines.

Abstract: In certain embodiments of the present disclosure, a fluid filtration assembly for a dishwasher system is described. The dishwasher system includes a tub defining a wash chamber configured to receive dishwasher contents. The fluid filtration assembly includes a filter assembly having a filter material, a filter fluid inlet, and a filter fluid outlet. The filter fluid inlet is in flow communication with the wash chamber and the filter material. The filter assembly further includes a cleaning fluid inlet that is configured to backflush the filter material. The filter fluid outlet is in flow communication with both the cleaning fluid inlet and the filter fluid inlet. The fluid filtration assembly further includes a valve assembly in flow communication with the cleaning fluid inlet through a first flow path.

Abstract: A spray assembly for an automatic dishwasher is described. The spray assembly includes a conduit for receiving pressurized washing liquid. The spray assembly further includes a spray body having two or more spray arms. Each spray arm has a plurality of orifices for distributing washing liquid throughout the dishwasher. The spray arms share a common central axis and are generally planar with one another. The spray arms each define a separate fluid path from the conduit to the orifices that is separated from the other fluid path(s) by one or more walls.

Abstract: A dishwasher spray arm assembly has a spray arm rotationally configured on a conduit. The spray arm includes a lower spray arm component mated with an upper spray arm component with an internal space defined between the upper and lower spray arm components. A bearing is interposed between the spray arm and conduit to conduct water from said conduit into the internal space, with the spray arm rotatably configured on the bearing. The bearing further includes a lower shaft section that mates with the conduit and an upper disc section sandwiched between the upper and lower spray arm components. A low-friction washer is disposed between the upper disc section and the lower spray arm component. The lower spray arm component and the disc section define a tortuous interference path for water to leak out from the internal space around the bearing.

Abstract: A gravity and flow operated diverter valve diverts liquid flow from one source to either of two output destinations. The valve includes a housing, an inlet opening, a first outlet opening and a second outlet opening. A valve member is located coaxially in the housing interior, the valve member having at least one flow path extending axially therethough, an exterior edge of the valve member and an interior surface of the side wall having a cooperating cam follower structure defining a cyclic path, the path having at least two no flow positions in which the valve member is spaced from the upper wall, and at least two flow positions in which the flow path in the disc selectively allows communication with one or both of the first and second outlet openings, the cyclic path arranged so that on successive liquid flows into the inlet opening the valve member cycles between the at least two flow positions to selectively direct flow out of one or both of the first and second outlet openings.

Abstract: Gravity and flow operated diverter valves are disclosed for diverting liquid flow from one source to either of two output destinations, the valves including a housing defining an inlet opening through a base wall, a first outlet opening through a first upper wall and a second outlet opening through a second upper wall. A valve member is movably suspended within the housing by a first end when no liquid is flowing into the inlet opening. The valve member is pivotable in a first direction to seal the first outlet opening and pivotable in a second direction to seal the second outlet opening. On successive liquid flows into the inlet opening the valve member automatically and alternatingly seals the first outlet opening and the second outlet opening. Related dishwasher designs are also disclosed.