ULTRASONIC DEVICE FOR WASHING CLOTHES Russian patent published in 2021 - IPC D06F7/04 

FIELD: household appliances.

SUBSTANCE: invention relates to household appliances, in particular to washing textiles using an ultrasonic washing machine and acoustic activation of liquid media during washing, disinfection, sterilization. There is an ultrasonic generator in an ultrasonic washing machine containing a body. The ultrasonic generator operates during washing and rinsing at one or more fixed frequencies of 1-50 kHz or more. There are several stationary ultrasonic emitters installed with external attachment on the body of its walls opposite each other with an offset. There is a control and monitoring unit. The novelty consists in the fact that one or more meso-sized sound-conducting particles are installed in front of the emitting surface of the ultrasonic emitter. The particles are capable of focusing radiation directly behind the shadow boundary of the particle with a spatial resolution exceeding the diffraction limit and with a characteristic size not less than the maximum wavelength of ultrasonic radiation generator.

EFFECT: expanding the range of technical means used in the construction of ultrasonic washing machines and increasing the intensity of acoustic radiation.

4 cl, 2 dwg