METHOD OF DEFOAMING IN DRUM-TYPE WASHING MACHINE, AND WASHING MACHINE FOR PERFORMING METHOD Russian patent published in 2012 - IPC D06F39/06 D06F35/00 

FIELD: textiles, paper.

SUBSTANCE: washing liquid discharge system is installed on the base of the tank (1) and comprises a pump of washing liquid having a sensor (15) to determine the level of the liquid contained in the tank (1). The signal from this sensor is recorded during the work of the pump of washing liquid. After the main washing cycle and pumping out the liquid, an alternate rotation of the drum is carried out at a speed of U₁, as well as the drum standstill, and pumping out the liquid over a period of time t₁ from 30 seconds to 15 minutes. Water is let in an amount sufficient to cover all the channels for water, and rinsing is carried out for a period of (t₂). The level is adjusted by the difference between the pressure in the upper switching point of water supply and the pressure in the lower switching point of water supply. Pumping out the liquid is carried out while the drum is rotating at a speed of U₂.

EFFECT: increased efficiency of defoaming.

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