Abstract: A drying system includes a tub having a plurality of walls. The tub also defines a wet chamber. The drying system also includes a heat pipe heat exchanger integrally joined to one of the plurality of walls of the tub. The drying system may be provided in a dishwashing appliance. A method of making a dishwashing appliance includes positioning a pipe within a mold and forming a portion of the dishwashing appliance over the pipe in the mold.

Abstract: A drying system includes a tub defining a wet chamber, a water storage chamber, an inlet defined in the tub and providing fluid communication into the wet chamber and a heat pipe heat exchanger. The heat pipe heat exchanger includes a condenser section and an evaporator section. The condenser section is in operative communication with the inlet upstream of the wet chamber and the evaporator section is in operative communication with the water storage chamber.

Abstract: A dishwashing appliance includes a first water storage tank, a second water storage tank, and a heat pipe heat exchanger comprising a condenser section and an evaporator section. The evaporator section is in operative communication with the first water storage tank and the condenser section is in operative communication with the second water storage tank.

Abstract: An open loop drying system includes an intake conduit and an exhaust conduit. The intake conduit and the exhaust conduit are each in fluid communication with an ambient environment. The open loop drying system also includes a heat pipe heat exchanger. The heat pipe heat exchanger includes a condenser section in operative communication with the intake conduit upstream of a wet chamber and an evaporator section in operative communication with the exhaust conduit downstream of the wet chamber. The open loop drying system may be provided in a dishwashing appliance.

Abstract: A dishwashing appliance includes a tub defining a wash chamber. The dishwashing appliance also includes a fluid circulation system configured to deliver fluid to the wash chamber. The fluid circulation system includes a heating element in operative communication with at least one component of the fluid circulation system. The dishwashing appliance also includes a heat pipe heat exchanger having a condenser section and an evaporator section. The condenser section is in operative communication with the wash chamber and the evaporator section is in operative communication with the heating element of the fluid circulation system.

Abstract: A dishwasher appliance includes a cabinet defining a wash chamber for receipt of articles for washing. The dishwasher appliance also includes a spray arm disposed within the wash chamber and rotatable about an axis. In addition, the spray arm defines an interior and aperture providing selective fluid communication between the interior and the wash chamber. The dishwasher appliance also includes a valve positioned within the interior of the spray arm, and the valve is stationary relative to the spray arm. The spray arm is rotatable between a first position and a second position. In the first position, the valve allows fluid communication between the interior and the wash chamber through the aperture. In contrast, when the spray arm is in the second position, the valve obstructs fluid communication between the interior and the wash chamber through the aperture.

Abstract: A filter assembly for filtering wash fluid in a dishwasher appliance is provided. The filter assembly includes an outer body defining an interior and an inlet port and extending along a longitudinal axis between a first upstream end and a second downstream end. The filter assembly further includes an inner body disposed radially inward of the outer body and at least partially within the interior of the outer body. The inner body defines an interior and an outlet port. The inner body includes a filter portion and a solid body portion. The filter portion positioned upstream of the solid body portion in a flow direction along the longitudinal axis. An inlet flow path defined by the inlet port is non-parallel to the longitudinal axis.

Abstract: A pump inlet assembly and method of operating a dishwasher appliance are provided. The pump inlet assembly includes an inlet conduit providing fluid communication between a sump and a pump. The inlet conduit defines an integrally formed boss which is coupled with a sensor housing using an overmolding process. A pressure sensor is positioned in the sensor housing and is protected from wash fluid by an airgap defined by the boss. The measured pressure may be used to determine the water level within the dishwasher when the pump is not operating and the suction pressure within the inlet conduit when the pump is operating. The inlet conduit, boss, pressure sensor, and pump housing may be integrally formed by injection molding and/or overmolding processes to reduce costs and the likelihood of leaks.

Abstract: The present subject matter provides a method for operating a dishwasher appliance. The method includes finely filtering wash fluid with a fine filtration medium via cross-flow filtration and coarsely filtering wash fluid with a coarse filtration medium via dead-end filtration. The finely filtered wash fluid is directed to a spray assembly of the dishwasher appliance. A related dishwasher appliance is also provided.

Abstract: A spray assembly for a dishwasher appliance is provided. The spray assembly is pivotally mounted over a wash rack and includes one or more spinning nozzles for directing a flow of wash fluid onto articles placed within the wash rack. The spinning nozzles are rotatably mounted to the spray assembly and include one or more vanes that harness the flow of wash fluid to rotate the spinning nozzle. The spinning nozzle has one or more discharge orifices that direct the flow of wash fluid onto articles in the wash chamber in a circular pattern as the spinning nozzle rotates, resulting in better spray coverage with fewer nozzles.

Abstract: A dishwashing appliance and method of operation are provided herein. The dishwashing appliance may include a heater operable to heat a tub of the dishwashing appliance. The method may include directing water into the tub, activating the heater by supplying electrical power to the heater, and adjusting the electrical power to the heater. Adjusting the electrical power may include detecting a temperature change within the tub, determining when the temperature change meets a predetermined criterion, and delivering a wattage output from the heater when the predetermined criterion is met.

Abstract: A dishwashing appliance, including methods of operation, is provided. The dishwashing appliance may define a vertical direction and include a tub, a base conductivity sensor mounted at a first level within the tub, and an elevated conductivity sensor mounted at a second level within the tub, the second level being higher along the vertical direction than the first level.

Abstract: A method for forming a unitary control panel for an appliance is provided. The method includes establishing three-dimensional information of the unitary control panel, converting the three-dimensional information of the unitary control panel into a plurality of slices, and successively forming or additively constructing each cross-sectional layer of the unitary control panel.

Abstract: A spray device assembly for a dishwasher appliance is provided including an outer tube and an inner tube. The outer tube extends along an axial direction and defines an outer tube orifice extending along a length of the outer tube. The inner tube also extends along the axial direction and is rotatably positioned at least partially within an opening of the outer tube. Moreover, the inner tube defines an inner tube orifice extending along a length of the inner tube. The outer tube orifice and inner tube orifice together define a nozzle where the outer tube orifice and the inner tube orifice overlap, the nozzle configured to move along the outer tube orifice as the inner tube and the outer tube are rotated relative to one another.

Abstract: A dishwasher appliance with a unitary sump, wherein the sump is integrally formed of a continuous piece of material such that a sump portion and a first filter portion of the unitary sump are integrally formed of the continuous piece of material, is provided. A dishwasher appliance with a unitary sump, wherein the sump is integrally formed of a continuous piece of material such that a sump portion and a diverter housing portion of the unitary sump are integrally formed of the continuous piece of material, also is provided. Further, a related method for forming a unitary sump for a dishwasher appliance is provided.

Abstract: Dishwasher appliances are provided. A dishwasher appliance includes a tub that defines a wash chamber for receipt of articles for washing, and a rack assembly arranged within the tub. The dishwasher appliance further includes a fluid ejection assembly, the fluid ejection assembly including an ejection head disposed within the wash chamber, the ejection head operable to eject fluid into the wash chamber. In one embodiment, the dishwasher appliance further includes a passive deflection assembly, the passive deflection assembly including a deflection unit disposed within the wash chamber for deflecting fluid from the ejection head towards the rack assembly. In another embodiment, the dishwasher appliance further includes a deflection assembly, the deflection assembly including a deflection unit disposed within the wash chamber for deflecting fluid from the ejection head towards the rack assembly, the deflection assembly further including a magnet operable to move the deflection unit.

Abstract: A filter for dishwasher appliance includes a filter medium, a body extending along an axial direction of the filter, and a cap positioned at a first end of the body along the axial direction of the filter. The filter medium is configured to filter debris and other particles from wash fluid from the wash chamber of the dishwasher appliance and is attached to or formed integrally with the body of the filter. Additionally, the cap is configured to allow a flow of wash liquid from the wash chamber of the dishwasher appliance to the filter medium and may be formed integrally with the body of the filter using an additive manufacturing process.

Abstract: A method for forming a unitary control panel for an appliance is provided. The method includes establishing three-dimensional information of the unitary control panel, converting the three-dimensional information of the unitary control panel into a plurality of slices, and successively forming or additively constructing each cross-sectional layer of the unitary control panel.

Abstract: Spray arm assemblies for dishwasher appliances are provided. In some embodiments, a spray arm assembly includes a first spray arm, the first spray arm including an inner arm member and an outer arm member, the inner arm member defining an interior and extending along a longitudinal axis, the outer arm member generally concentric with and surrounding the inner arm member. The inner arm member is rotatable about the longitudinal axis. The inner arm member defines an inner slot extending helically along the longitudinal axis. The outer arm member defines an outer slot extending generally linearly along the longitudinal axis.

Abstract: A method for operating a dishwasher appliance is provided. The method includes operating a first pump and a second pump of the dishwasher appliance during a wash cycle of the dishwasher appliance, working the second pump of the dishwasher appliance during a soil collection cycle of the dishwasher appliance, and running the first pump of the dishwasher appliance during a drain cycle of the dishwasher appliance. The first pump of the dishwasher appliance is deactivated during the step of working, and the second pump of the dishwasher appliance is deactivated during the step of running. A related dishwasher appliance is also provided.