Patent ID: 6782899
Filing Date: 2004-08-31
Classification: A47L

Abstract:
A dishwasher, comprising:a case; a rack installed in the case for accommodating the dishes; a spray arm installed below the rack for spraying washing water; a combined circulation/drain pump including an upper pump for repeatedly pressurizing and supplying the washing water to the spray arm and a lower pump for discharging the washing water; and a filtering means for filtering the washing water, the filtering means comprising: water collector formed below a bottom surface of the case and in a washing water flow passage connected to the combined circulation/drain pump; a filter provided in the water collector for filtering out garbage; a filter self-cleansing means for performing a self-cleansing operation of the filter; a garbage collecting chamber provided below the bottom surface of the case and connected to both a washing water discharge port of the upper pump and a drain flow passage of the lower pump; a fine filter mounted on a top surface of the garbage collecting chamber for filtering out the garbage from the washing water discharged upward; and a fine filter self-cleansing means for performing a self-cleansing operation of the fine filter.