WATER CIRCULATION APPARATUS AND METHOD FOR DRUM WASHING MACHINE
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United States of America Patent
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Issued Date -
Sep 9, 2010
app pub date -
Aug 28, 2009
filing date -
Aug 28, 2008
priority date (Note) -
Abandoned
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Abstract
A water circulation apparatus and method of a drum washing machine is disclosed. The water circulation apparatus includes a tub, a drain hose connected to the tub, a muddiness detecting sensor detecting a degree of muddiness of wash water being discharged through the drain hose after being used for rinsing laundry, a drain pump located in the drain hose to pump the wash water being discharged through the drain hose, a circulation hose connected to the drain hose at a discharge side of the drain pump to supply the wash water into a drum, a supply valve located at a connecting portion between the drain hose and the circulation hose to selectively supply the wash water pumped by the drain pump to the drain hose of a drain port side or to the circulation hose, and a controller controlling operations of the drain pump and the supply valve.
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