Method of washing laundry in drum washing machine
AssigneeLG Electronics Inc.
InventorsSi-Moon Jeon, Na-Eun Kim, Kyung-Chul Woo
Life of this patent
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Abstract
Disclosed is a method of washing laundry in a drum washing machine by which the amount of wash water used and the amount of power use can be decreased when doing washing in the drum washing machine. The method comprises supplying wash water to a tub up to a first preset water level; and washing laundry in a drum by rotating the drum of the drum washing machine forward and backward simultaneously while drawing the wash water and supplying the drawn wash water to the drum.
Claims26
A method of washing laundry in a drum washing machine including a tub to hold water, a drum rotatably placed inside the tub, a steam generator to generate steam, and a circulation pump to draw the water inside the tub and supply the drawn water to the tub, the method comprising steps of:
- supplying water to the tub up to a first preset water level;
- washing laundry in the drum by rotating the drum forward and backward while drawing the water inside the tub and supplying the drawn water to the tub;
- and
- injecting steam into the tub and drawing the water inside the tub and supplying the drawn water to the tub, while rotating the drum forward and backward,
- wherein the injecting of steam includes:
- rotating the drum forward and backward at a preset rate and drawing the water inside the tub and supplying the drawn water to the tub, while generating steam and injecting the generated steam into the tub for a first preset time;
- and
- stopping steam generation after the first preset time, rotating the drum forward and backward at the preset rate for a second preset time, and re-drawing the water inside the tub and re-supplying the re-drawn water to the tub.
A method of washing laundry in a drum washing machine, the drum washing machine comprising a tub, a drum rotatably disposed in the tub, a circulation channel formed to circulate water in the tub and supply the same to laundry, a circulation pump for drawing the water and circulating the drawn water along the circulation channel, and a steam generator connected to a steam water supply valve to receive water for generating steam and injecting the generated steam into the tub, the method comprising steps of:
- (a) supplying water to the tub up to a first preset water level;
- (b) washing laundry while circulating the water along the circulation channel by operating the circulation pump and rotating the drum forward and backward;
- (c) washing the laundry while generating steam through the steam generator which heats water supplied through the steam water supply valve, injecting the generated steam into the tub and rotating the drum forward and backward, and circulating the water along the circulation channel;
- and
- (d) washing the laundry while circulating the water inside the tub along the circulation channel.
A method of washing laundry in a drum washing machine including a tub to hold water, a drum rotatably placed inside the tub, a steam generator connected to a steam water supply valve to receive water for generating steam and injecting the generated steam into the tub, a circulation channel formed to circulate water in the tub and supply the same to laundry, and a circulation pump to draw the water inside the tub and supply the drawn water to the tub, the method comprises:
- a steam washing step for washing the laundry by water and steam, the steam washing step including:
- a steam injecting step for injecting steam into the tub by operating the steam generator which heats water supplied through the steam water supply valve;
- a drum rotation step for rotating the drum, the steam injecting step and the drum rotation step being simultaneously performed;
- and
- a circulation step for circulating the water in the tub through the circulation pump and the circulation channel.
A method of washing laundry in a drum washing machine, the drum washing machine comprising a tub, a drum rotatably disposed in the tub, a circulation channel formed to circulate water in the tub and supply the same to laundry, a circulation pump for drawing the water and circulating the drawn water along the circulation channel, and a steam generator for generating steam and injecting the generated steam into the tub, the method comprising:
- (a) supplying water to the tub up to a first preset water level;
- (b) circulating the water along the circulation channel by operating the circulation pump while rotating the drum;
- and
- (c) generating steam in the steam generator and injecting the generated steam into the tub, while rotating the drum and circulating the water along the circulation channel by operating the circulation pump,
- wherein the step (c) comprises a drum rotation step for rotating the drum at a preset rate and circulating the water inside the tub, while generating steam and injecting the generated steam into the tub for a first preset time;
- and
- stopping steam generation after the first preset time, rotating the drum at the preset rate for a second preset time, and re-circulating the water inside the tub.
Dependencies are inferred from the claim text.