Washing machine and control method thereof

Details Washing machine and control method thereof Washing machine and control method thereof

2004-05-21

2008-08-05

Barr, Michael (Department: 1792)

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Manipulation of liquid

C068S012180, C068S012220

Reexamination Certificate

active

07406737

ABSTRACT:
A drum type washing machine in which wash water and laundry contained in a rotating tub are heated by steam supplied into the rotating tub, so as to rapidly increase the temperature of the wash water and laundry, thereby being capable of reducing the total wash time while reducing the amount of wash water to be used, and reducing the consumption of energy caused by heating of the wash water. The washing machine includes a steam generating unit for heating water supplied thereto, thereby generating steam, and a control unit for rotating the rotating tub at a high speed to cause the laundry contained in the rotating tub to be in constant contact with an inner peripheral surface of the rotating tub without falling down, by virtue of a centrifugal force generated during the rotation of the rotating tub, the control unit supplying the steam from the steam generating unit into the rotating tub during the high-speed rotation of the rotating tub, to increase the internal temperature of the rotating tub and the temperature of the laundry.

REFERENCES:
patent: 4782544 (1988-11-01), Nystuen et al.
patent: 4856301 (1989-08-01), Broadbent
patent: 6585781 (2003-07-01), Roseen
patent: 1275767 (2003-01-01), None
patent: EP 0496708 (1992-07-01), None
patent: 48-36785 (1973-11-01), None
patent: 04-158896 (1992-06-01), None

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