WASHING MACHINE ACTIVATOR Russian patent published in 1995 - IPC

FIELD: domestic washing machines. SUBSTANCE: activator having dome-shaped disk with surface holes is provided with through holes on its rim and in top part. Annular projection is made inside activator, near its face, and radial ribs, on its inner surface. Ring member with through holes arranged at variable spacing on its circumference is mounted coaxially and in a spaced relation to disk rim. Holes on disk rim and in ring are located in same taper surface whose generating line is tilted through 45-80 deg. to activator axis of rotation. Detergent is supplied inside activator, carried away by ribs, and expelled at high speed through holes in rim. Detergent jets are periodically interrupted by ring walls, pass through holes in it, and build up variable velocity and pressure field causing ultrasonic oscillations in detergent. EFFECT: improved washing efficiency due to building up hydraulic pulses in detergent. 3 cl, 1 dwg