SELF-CLEANING FILTER Russian patent published in 1995 - IPC

FIELD: liquids purification. SUBSTANCE: gauze filter with tangential inlet for liquid has body and mounted coaxially inside body filtering member. Between walls of body and filtering member there is mounted partition, made in the form of screw-shaped band, that forms canal, passing sections of which are deceasing from entry to exit so, that constant speed is ensured in any section of canal. Liquid from inlet branch pipe is fed in canal and twisted due to screw-shaped form. Moving with constant speed along canal, one wall of which is filtering member, liquid washes out stuck to it foreign ingredients, providing its cleansing. Due to stream twisting effect of self-cleaning is potentiated. EFFECT: increased cleaning effectiveness, simplified design. 2 dwg