METHOD FOR DEDUSTING BY MEANS OF VACUUM CLEANER Russian patent published in 2005 - IPC

FIELD: processes for collecting dust, cleaning rooms, removing dust from electronic devices, industrial equipment.

SUBSTANCE: method comprises steps of using controlled compressed air pulses for tearing-off dust particles from rigid surface in hard-to-reach places, for mixing dust particles with air and then for removing them by means of pulses of directed suction flows of air created with use of vacuum cleaner. In suction zone upon dust stuck to surface of cleaned object pulses of directed compressed air flows are acted for tearing dust particle from surface by means of compressed air stream and for mixing them with air. At process of cleaning changing characteristics of compressed air pulses, orientation and shape of air streams while changing frequency of compressed air pulses, their duty factor, amplitude of flow rate and pressure of compressed air according to condition providing maximum activation of dust without damaging members. Pulses of compressed air flows are applied by bursts during phase of dust activation. At cleaning process number of pulses in bursts, shape, duty factor, frequency of pulses, duty factor of pulse bursts are changed according to condition providing maximum rate of dust activation for cleaned surface. Novelty is feed of train of short pulses in phase of dust activation before feeding one long pulse in order to create pulsating flows of compressed air providing pressure drop. It allows accelerate dust particle tearing from surface due to creation of pulsating turbulent air flows near cleaned surface. Dust-laden air is sucked by means of pulses of directed suction flows of air. Method may be used in home and industrial rooms for cleaning complex-profile surfaces.

EFFECT: enhanced quality and rate of cleaning complex-profile articles.

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