WASHING MACHINE Russian patent published in 1998 - IPC

FIELD: equipment for washing fabric without applying mechanical force to fabric during washing, squeezing and drying. SUBSTANCE: washing machine has washing tank, water and air pumps with pipelines and control system, fabric squeezing and drying tank and heater. Washing tank is divided into two parts. Upper part is made in the form of vessel with corrugated wall and semicylindrical bottom. Narrow slits are positioned below corrugations at one side of vessel and bottom. Lower part of washing tank has inclined bottom and dividing wall. Squeezing and drying tank is divided into two parts. Upper part has semispherical detachable perforated bottom and lower part is made in the form of vessel narrowing downward and provided with transverse partitioning grid. Tanks are connected one with another, with pumps and heater via pipelines. Slits of semicylindrical bottom of upper part of washing tank are connected with delivery pipeline of water pump and drain slits made in wall of this part are connected with lower part of squeezing tank via pipeline. Delivery pipeline of air pump is connected via looped pipeline with perforations in semicylindrical bottom. Suction pipeline of air pump is mounted below semispherical detachable bottom in lower part of squeezing tank. Washing is provided by jet and cavitation effect and squeezing and drying are provided by urging and evaporating water from fabric by hot air. EFFECT: increased service life and enhanced reliability in operation by absence of rotating constructional members. 1 dwg