GAS-LIQUID EJECTOR-TYPE VACUUM CLEANER Russian patent published in 1999 - IPC

FIELD: household equipment. SUBSTANCE: vacuum cleaner has cylindrical housing with inlet and outlet branch pipes and thrust booster made in the from of gas-liquid ejector. Centrifugal deep-well pump positioned within vacuum cleaner is adapted for supplying liquid into nozzle ejector. Removable reservoir for liquid is connected at the bottom to vacuum cleaner housing. Inlet connecting pipe of centrifugal deep-well pump and outlet connecting pipe of ejector mixing chamber are positioned within reservoir. Ratio of nozzle and mixing chamber effective section diameters, mixing chamber length, pump capacity are selected such that liquid jet thrown from ejector nozzle at predetermined distance from nozzle completely cuts off mixing chamber section and, as a result, liquid absorbs maximum amounts of dust suspended in air flow, with following release of air from liquid in vacuum cleaner reservoir. EFFECT: increased efficiency in air cleaning without usage of external devices. 5 cl, 1 dwg