A dishwashing appliance with a shrouded filtration assembly for removing dishwashing sediment from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, and a shrouded filtration assembly in fluid communication with the spray system, the recirculation pump, and the drainage pump. The shrouded filtration assembly may include a lid, a filter frame, and a sump housing.

A heating system for heating a target fluid may include an intermediate liquid circulation path for holding an intermediate liquid and a target fluid flow path for conveying the target fluid, where the target fluid flow path and the circulation path are separate from one another but thermally communicate with one another via a heat exchanger. The intermediate liquid may be heated by a heater and circulated in the intermediate liquid circulation path by a pump. A ratio of the maximum heat output of the heater to the volume of the intermediate liquid circulation path may be at least about 5 Watts/cm.sup.3. The thermal mass of the intermediate liquid may be 0.3 times the thermal mass of the target fluid or less. The heating system may be utilized in a washing appliance such as a dishwasher, where the target fluid is the wash water used in such appliance.

A dish washer includes: a washing tank having an accommodation space for storing dishes therein; an injection arm disposed inside the washing tank, and provided with a plurality of nozzles to selectively inject washing water and air to the dishes according to a washing stroke and a drying stroke; a duct unit that defines a passage for delivering the air to the injection arm; a suction fan provided inside the duct unit to suction the air and supply the air to the injection arm; and an air heating element that heats the air to be supplied to the injection arm.

The present disclosure relates to a dishwasher equipped with an automatic cleaning filter including a tub 12 provided with a washing space 12a that accommodates cooking vessels, a sump 100 disposed under the washing space 12a and configured to store a washing liquid, an automatic cleaning filter 200 disposed in the sump 100, and a washing pump 150 connected to the sump 100 and configured to re-circulate a washing liquid. The automatic cleaning filter 200 includes a rotating filter 210, an inlet guide 220, a filter housing 230, and a driver 270. The rotating filter 210 includes a plurality of first holes 213 and a lateral surface portion 212 surrounding a predetermined vacant space. The inlet guide 220 includes a first outlet 224 which discharges the washing liquid including foreign substances into the rotating filer 210.

Dishwashing appliances and methods, as provided herein, may include features or steps such as measuring a first pressure in a sump with a pressure sensor and storing the first pressure in a memory of the dishwashing appliance as a reference pressure. Dishwashing appliances and methods may further include features or steps for measuring a second pressure within the sump with the pressure sensor after measuring the first pressure, and determining that a check valve is failed when the second pressure exceeds the first pressure by at least a predetermined margin.

The present application discloses a water spraying pipe and a cleaning apparatus. The water spaying pipe includes a pipe body having a water inlet end and defining a water spraying hole in a pipe wall thereof; and a water spraying groove defined in the water spraying pipe at a position corresponding to the water spraying hole. The water spraying hole is in communication with the water spraying groove, and a diameter of the water spraying hole is greater than a width of the water spraying groove. The present application effectively improves the cleaning efficiency of the water spraying pipe.

A dish treating appliance includes a cabinet defining an interior with an access opening. A door is hingedly mounted to the cabinet for pivoting movement about a pivot axis between closed and opened positions to selectively close and open the access opening. A door opener includes a housing mounted to the cabinet and defining a pin opening facing the door. An opening pin is located within the housing and aligned with the pin opening. A lever is rotatably mounted to the housing to define a rotation axis and is selectively operably coupled to the opening pin. An actuator having a reciprocating shaft is connected to the lever.

A wash arm assembly may include wash arm having a tubular connection portion and a tubular receiving means for receiving the tubular connection portion. The tubular connection portion may include a first guiding surface and a second guiding surface, and the tubular receiving means may include a third guiding surface and a fourth guiding surface. The first guiding surface may be aligned to the third guiding surface and the second guiding surface may be aligned to the fourth guiding surface when the tubular connection portion is inserted in the tubular receiving means. The first, second, third and fourth guiding surfaces may be arranged to guide the tubular connection portion and the tubular receiving means into alignment with each other upon rotation of the wash arm. A dishwasher including the wash arm assembly may also be provided.

A conveyor type ware washing machine uses a heat pump to reduce exhaust heat and to heat incoming water. A modulating valve is used to control incoming water flow through a heat exchanger of the heat pump. Processing circuitry automatically dynamically adjusts the modulating valve between a plurality of open states based on the sensed refrigerant head pressure of the heat pump, so that the refrigerant head pressure is maintained in a predefined range. The ware washing machine is efficient, and reduces the amount of heat exhausted to ambient. Related methods are also disclosed.

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.