Patent ID: 8621894
Filing Date: 2014-01-07
Classification: D06F

Abstract:
1. A washing machine, comprising a rotational drum into which laundry is input, and a water tub to perform a washing operation using bubbles, the washing machine comprising: a water supply device to control supply of wash water via a water supply valve; a detergent supply device to receive the wash water via a water supply line and to supply detergent along with the water; a first motor to rotate the rotational drum; a second motor installed at a lower portion of the water tub to generate bubbles; a bubble generating member connected to the water tub through a pipe connected to the second motor, and configured to generate bubbles in a space between the water tub and the rotational drum according to operation of the second motor; and a controller to control the water supply device and the detergent supply device to supply a mixture of the wash water and the detergent as detergent water into the space between the rotational drum and the water tub, to control the second motor while maintaining a level of the detergent water between the rotational drum and the water tub to prevent the detergent water from coming into contact with the laundry input into the rotational drum so as to supply the bubbles generated by the bubble generating member to the space between the water tub and the rotational drum through at least one hole formed through the lower portion of the water tub, and to perform the washing operation as the bubbles generated in the space between the water tub and the rotational drum move upward through a plurality of holes formed through the rotational drum and are input into the rotational drum.