A dishwasher having a tub, a sump fluidly coupled to the tub, a discharge outlet, a drain assembly, and a check valve drain assembly including a seat assembly having a body with a first distal end and a second distal end, a fluid passage extending through the body, the body defining a valve seat having a sealing surface about the fluid passage and a flapper assembly operably coupled to the seat assembly and having a moveable portion configured to selectively move between a closed position where the moveable portion seals against the sealing surface and an opened position where the moveable portion raises to allow liquid through the fluid passage.

A fluid circulation assembly for a dishwasher appliance includes a pump, a diverter, and a valve. The diverter includes an inlet and a plurality of outlet ports. The inlet of the diverter is in fluid communication with the pump for receiving fluid from the pump. The valve is in fluid communication with the diverter via one or more of the plurality of outlet ports. The valve includes a housing, a dual check valve assembly mounted in the housing and a plurality of conduits. The dual check valve assembly selectively directs fluid from the diverter to one or more of the plurality of conduits.

A method of controlling a dishwasher is disclosed. The method includes supplying water to a sump, driving a wash pump using a wash motor, introducing a detergent into a tub, and determining whether the amount of bubbles is excessive based on the value of current applied to the wash motor. The determining whether the amount of bubbles is excessive is performed after a lapse of a predetermined period of time since the start of the introducing the detergent into the tub.

A dishwasher and a base component, the base component includes base (1) and overflow cover (2). The overflow cover (2) includes an overflow port (211) and an overflow water distribution cover body (21) of an mounting portion (2131), the overflow water distribution cover body (21) has an overflow chamber (212), and the base (1) has an overflow hole (112) and a connection portion (113) which is docked with the mounting portion (2131). Both the overflow port (211) and the overflow hole (112) communicate with the overflow chamber (212) and form an overflow channel (214); the water inlet plate (215) is provided on the overflow cover (2) adjacent to the upper surface (10) of the base (1) and communicates with the overflow port (211). The water inlet plate (215) is provided with a plurality of filter holes (2151).

A dishwasher has a housing (10) with a wash chamber (20) and a top wall (204) with a non-planar surface (214;214) facing downwardly into the wash chamber, the surface having portions (216,218; 226,228) facing downwardly and facing in different horizontal directions (H1,H2; HX,HY,HP,HQ). Nozzles (402) mounted within the wash chamber spray a liquid upwardly within the wash chamber. The surface portions redistribute the upwardly-sprayed water in horizontal directions to provide a more uniform washing action. A portable dishwasher may have a fresh water reservoir (422) and a used water reservoir (430) mounted in the housing beneath the wash chamber. The used water reservoir may be removably mounted in the housing so that the user can remove used wash water by removing the used water reservoir. The portable dishwasher can be used at a location remote from a sink.

A method includes actuating a pump at a constant nominal flow-rate to induce liquid flow out of a vessel through an outlet duct. The outlet duct communicates with the vessel with an upper aperture at an intermediate level height, and a lower aperture at a reduced level height. Flow of liquid is detected in the outlet duct. A digital signal assumes an alternate sequence of states when the liquid level is between the intermediate and reduced levels. Each state is an air-indicating state or liquid-indicating state. The presence or absence of air bubbles is detected in the flow of liquid. The digital signal is compared with a reference signal having a predetermined sequence of air-indicating states and liquid-indicating states. Pump actuation duration is modified as a function of a difference between the digital and reference signals. An apparatus is controls the supply of a liquid level in a vessel.

The stationary gasket used in all kinds of dishwashers and similar household appliances, characterized in that; it ensures the sealing not by being compressed but by stretching and ensures sealing in both ways with a single part.

A water-using household appliance, in particular a household dishwashing machine, includes a wall which is made from a metal material, and a device which is made from a plastic material and fixedly connected to the wall by a laser weld.

A dish washer includes: a washing tank including a sump at a bottom surface thereof; a water storage unit disposed inside or outside the washing tank to store washing water to be supplied to the washing tank; a heat pump system including a compressor that compresses and circulates refrigerant, a first heat exchanger disposed in the sump, an expansion apparatus, and a second heat exchanger disposed in the water storage unit to heat washing water for washing the dishes; and a reverse valve that changes a flow of refrigerant flowing through each of the first heat exchanger and the second heat exchanger to allow each of the first heat exchanger and the second heat exchanger to be switched from each other between a heating mode for heating the washing water and a heat recovery mode for recovering heat from washing water discharged to the outside from the washing tank.

A dishwasher includes: a dishwasher body including a tub that defines a washing space and a sump disposed vertically below the tub and configured to accommodate washing water; a heat pump including a compressor, a condenser, an expansion apparatus, and an evaporator; a drain storage unit connected to a drain pipe of the sump and configured to receive washing water discharged from the sump; a drain pipe open-close valve that opens and closes the drain pipe; and a controller that controls the heat pump and the drain pipe open-close valve. The evaporator is configured to exchange heat with the drain storage unit, and the controller controls the drain pipe open-close valve to open the drain pipe to move washing water of the sump to the drain storage unit when the sump is drained.