CYCLONE UNIT FOR USE IN WET CLEANING VACUUM CLEANER Russian patent published in 2025 - IPC A47L7/00 

FIELD: chemistry.

SUBSTANCE: cyclone unit is intended for separation of liquid and particles from suction flow. Cyclone unit (18) for separation of liquid and particles from flow passing through cyclone unit, wherein cyclone unit has axis of rotation (22) of cyclone and contains: outer housing (30) having outer side wall (32), first end (34) and second end (36) located along cyclone axis (22); main flow inlet (38) to the outer housing having an opening in the outer housing; main flow outlet (40) from the outer housing, located closer to the first end than the main flow inlet, wherein the transition between the main flow inlet and the outer housing has, for at least part (80) of the openings on the first end side of the main flow inlet, a radius of curvature, of at least 0.5 mm in the plane perpendicular to the local tangent to the inlet hole for the main flow.

EFFECT: large radius of curvature prevents formation of stagnant drops of water.

23 cl, 14 dwg