Liquid detergent dispensing system for a washing machine
First Claim
Patent Images
1. A liquid detergent dispensing system for a washing machine, comprising:
- a washing machine housing;
a washing tub disposed in the washing machine housing;
a liquid detergent storage container configured to store a liquid detergent;
a liquid detergent supply pump configured to provide a positive pressure differential for supplying the liquid detergent to the washing tub, and configured to provide a negative pressure differential for removing residual liquid detergent not supplied to the washing tub;
a support frame disposed under the washing machine housing to support the washing machine housing, the liquid detergent storage container being placed within the support frame; and
a liquid detergent supply passage provided between the washing tub and the liquid detergent storage container, the liquid detergent being supplied to the washing tub through the liquid detergent supply passage.
1 Assignment
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Accused Products
Abstract
Disclosed is a washing machine, which prevents solidification of liquid detergent by rapidly recovering the liquid detergent left in a liquid detergent supply passage and a liquid detergent supply pump by forming a negative pressure differential by use of the liquid detergent supply pump for a set period of time after the supply of liquid detergent is finished.
17 Citations
15 Claims
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1. A liquid detergent dispensing system for a washing machine, comprising:
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a washing machine housing; a washing tub disposed in the washing machine housing; a liquid detergent storage container configured to store a liquid detergent; a liquid detergent supply pump configured to provide a positive pressure differential for supplying the liquid detergent to the washing tub, and configured to provide a negative pressure differential for removing residual liquid detergent not supplied to the washing tub; a support frame disposed under the washing machine housing to support the washing machine housing, the liquid detergent storage container being placed within the support frame; and a liquid detergent supply passage provided between the washing tub and the liquid detergent storage container, the liquid detergent being supplied to the washing tub through the liquid detergent supply passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A liquid detergent dispensing system for a washing machine, comprising:
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a washing machine housing; a washing tub disposed in the washing machine housing; a liquid detergent storage container configured to store a liquid detergent; a liquid detergent supply pump configured to provide a positive pressure differential for supplying the liquid detergent to the washing tub, and configured to provide a negative pressure differential for removing residual liquid detergent not supplied to the washing tub; a support frame disposed under the washing machine housing to support the washing machine housing, the liquid detergent storage container being placed within the support frame; and a detergent supply unit positioned along a passage through which washing water is supplied to the washing tub, the washing water and detergent being mixed together in the detergent supply unit, wherein the liquid detergent is supplied from the liquid detergent storage container to the washing tub via the detergent supply unit. - View Dependent Claims (15)
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Specification