Patent ID: 7763118

Claim:
A dishwasher comprising; a tub; a sump installed at a bottom of the tub to supply water for washing dishes; at least one rack positioned within the tub, wherein the rack is configured to receive dishes; a steam generator that generates steam, the steam generator configured to supply water to the sump and supply steam to the tub through separate passages, where the separate passages comprise: a connection pipe that fluidly connects the steam generator and the sump, to supply the water to the sump; and a steam passage that supplies the steam generated by the steam generator to the tub; a water supply passage which connects a water source outside the dishwasher to the steam generator; and a condensed water passage that fluidly connects the steam passage and the water supply passage, the condensed water in the steam passage returning to the steam generator by sequentially passing through the condensed water passage and the water supply passage.