A box-type dishwasher, wherein the dishwasher has a fresh-water connection with a feed valve, wherein a water-treatment system with a reverse-osmosis device is provided downstream of the feed valve in order to treat, in particular as required, as least some of the fresh water fed to the dishwasher via the fresh-water connection, wherein a backflow preventer is provided between the feed valve and the reverse-osmosis device in order to prevent water from flowing back from the dishwasher into a fresh-water-supply installation which is, or can be, flow- connected to the fresh-water connection.

The present disclosure discloses a dish washer. The dish washer includes a container, a spraying duct, and a water supply system. The container has a cleaning area therein. A plurality of spraying devices are provided, and each spraying device is provided with a spraying hole and has a water inflow end. The water supply system is in communication with a water supply and the water inflow end of the spraying device. According to the dish washer of the present disclosure, water spray can be individually controlled by the multiple water supply systems or by cooperation between one water supply system and the diverter valve. Thus, the dish washer has satisfactory water usage efficiency.

A water dispensing device for a washing appliance has a body and a lid defining an internal cavity and, within the internal cavity, a flow conduit for water from an inlet to an outlet. On the flow conduit an air-break is provided. One or more non-return valves are arranged on the flow conduit within the internal cavity and upstream of the air-break.

A dishwasher has a treating chamber for receiving dishes for treatment according to an automatic cycle of operation and a dispensing system for storing and dispensing a treating chemistry to the treating chamber during the cycle of operation. The dishwasher may dispense a treating chemistry when a temperature of a liquid in the treating chamber satisfies a predetermined temperature threshold. The temperature of the liquid may be maintained to satisfy the predetermined temperature threshold for a predetermined period of time based on the treating chemistry.

A dishwasher appliance includes a drain basin defined at a bottom of a sump of the dishwasher. The drain basin defines a discharge port and a drain pump is in fluid communication with the discharge port for selectively urging a flow of wash fluid through the discharge port to an external drain during a drain cycle. A check valve assembly includes a check valve removably positioned over the discharge port between the drain pump and the drain basin and a positioning arm attached to the check valve for positioning and locking the check valve in place.

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.

A dishwasher for treating dishes according to an automatic cycle of operation and including a tub at least partially defining a treating chamber, at least one sprayer configured to emit a corresponding spray of liquid into the treating chamber, at least one liquid circuit supplying liquid to the at least one sprayer, a pump having a pump inlet fluidly coupled to the treating chamber and a pump outlet, and a diverter valve controlling a flow of liquid from the pump to the at least one sprayer.

The dishwasher of the present invention includes: a tub in which a dish washing space is formed; a sump which contains washing water supplied into the tub; a spray module which sprays washing water toward dishes; a pump which supplies the washing water stored in the sump to the spray module; an air jet generator which receives a part of the washing water discharged from the pump to form an air bubble in the washing water; and a discharge module which discharges the washing water containing the air bubble discharged from the air jet generator to a side surface of the tub.

A dishwasher appliance that includes features for prevention and detection of flood events or tub overfills without sacrificing performance or efficiency of the dishwasher appliance is provided. Moreover, methods for detecting and preventing such flood events are also provided.