Disclosed is a dishwasher that sprays washing water and steam to wash dishes or cooking appliances. The dishwasher according to the present invention includes: a tub which receives a target of washing; a sump which is disposed at a bottom of the tub to store washing water; a spray arm which sprays the washing water stored in the sump into the tub; a heater which generates heat by heating washing water in a circulation passage connecting the sump and the spray arm; and a steam passage which is connected to the steam nozzle, and in which the steam generated by the heater flows. Accordingly, the steam generated in the circulation passage may be supplied smoothly.

A pump includes a housing, a water inlet pipe coupled to the housing and configured to receive washing water, a water outlet pipe coupled to the housing and configured to discharge washing water, an impeller located in the housing and configured to cause washing water to be transferred from the water inlet pipe to the water outlet pipe, a heater that is coupled to the housing, that is configured to heat washing water in the housing, and that is configured to generate steam based on heating washing water, and a steam discharge pipe coupled to the water outlet pipe and configured to discharge steam generated by the heater.

A dish washer includes: a tub defining a washing space, a spray module disposed inside the tub and configured to spray water to the washing space, a sump configured to store water, a washing pump configured to supply the water stored in the sump to the spray module, and an air jet generator disposed below a bottom surface of the tub and configured to receive a portion of the water discharged from the washing pump to generate air bubbles in the water and discharge the water having air bubbles to the washing space. The air jet generator includes an air pulverizing pipe including a first pipe providing a cross-sectional area reducing in a water flowing direction, a second pipe providing a cross-sectional area increasing in the water flowing direction, and an air tab disposed at an upper portion of the second pipe.

A dish washer includes a tub defining a washing space, a base disposed below the tub and defining a space below the tub, a sump disposed in the space defined by the base and configured to store water, a washing pump disposed in the space defined by the base and configured to supply the water stored in the sump to the washing space, and an air jet generator having a venturi shape including an air inlet provided on one side, an inlet having a downward opening, and an outlet provided above a bottom surface of the tub. The air jet generator further includes a tub mounting portion fixing an upper portion of the air jet generator to the bottom surface of the tub and a base fixing portion disposed below the tub mounting portion, the base fixing portion coupling a lower portion of the air jet generator to the base.

A dishwasher is proposed. The dishwasher includes a case accommodating a cleaning target therein, a sump connected to an interior of the case to collect wash water, a wash pump into which the wash water flows from the sump, and generating steam, a steam nozzle into which the steam flows from the wash pump, and spraying the steam into the case, and a bubble filter disposed on a steam path between the wash pump and the steam nozzle to remove a bubble in the steam path.

A dishwasher is proposed. The dishwasher includes a case accommodating a cleaning target, a sump connected to an interior of the case to collect wash water, a wash pump into which the wash water collected in the sump flows and which generates steam, a steam nozzle spraying the steam, generated in the wash pump, into the case, and a steam valve disposed on a steam path connecting an outlet of the wash pump and the steam nozzle and including an actuator and a valve cap driven by the actuator to open or close the steam path.

Provided is a dishwasher for spraying washing water or steam to wash dishes or cooking appliances. The dishwasher according to the present invention includes: a case; a tub which is provided inside the case to form a washing space where a target of washing is received; a spray arm which sprays washing water into the tub; a sump which is disposed under the tub to store the washing water; a washing pump which supplies the washing water stored in the sump to the spray arm and generates steam; a steam nozzle which sprays the steam generated in the washing pump to the washing space; and a steam hose which connects the washing pump and the steam nozzle, wherein the sump comprises a steam hose supporter that supports the steam hose.

A stand-alone dishwasher for non-plumbed, environmentally friendly dishwashing includes a washer body. A front side has a drain aperture extending through to an inner compartment of the washer body. A lid is coupled to the washer body to cover and alternatively uncover a principal aperture. A plurality of rails is coupled within the inner compartment to support a plurality of racks that is removable through the principal aperture. A floor panel is coupled to the washer body and creates a lower compartment between a bottom side of washer body and the floor panel. A heater is coupled within the lower compartment. The heater is configured to turn water within the inner compartment into steam. A plurality of controls is coupled to the lid. The plurality of controls is in operational communication with the heating element.

Disclosed is a control method of a dishwasher (100) including a tub (2) for receiving objects to be washed, a plurality of spray arms (711, 713, 715) for spraying wash water to the objects, and a steam nozzle (42) for spraying steam to the objects, the control method including a main washing cycle of washing the objects, a rinsing cycle of rinsing the washed objects using wash water, and a drying cycle of drying the objects after the rinsing is completed, wherein the drying cycle includes spraying steam, received from a steam source, to the objects to increase a temperature of the objects (a steam spraying step) and resupplying water to the steam source in order to prevent the steam source from being heated after the steam spraying step (a cooling step).

Disclosed is a washing pump for spraying washing water or steam to wash dishes or cooking appliances, and a dishwasher including the same. The washing pump according to the present invention includes: a housing; a partition wall which is vertically divides an inner space of the housing; an impeller which is rotatably disposed over the partition wall in the housing to cause washing water to flow; a heater which is disposed under the partition wall to heat the washing water in the housing so as to generate steam; and a steam discharge pipe which is disposed over the partition wall to discharge the steam, generated by the heater, to an outside of the housing. Accordingly, steam may be generated by the heater and discharged.