FIELD: ventilation.
SUBSTANCE: vacuum cleaning device contains the assembly (1) where the vibrating air flow with almost zero total flow and asymmetry between the suction and injection phases is formed so that to create a jet in the injection phase. The generator (31) required for formation of the vibrating air flow, contains the mobile surface (30) which is integrated into the housing (10) wall (12), which has internal space (11) and at least one hole (13) to let air to flow in and out of the internal space (11). The jet can be created, when so-called Strouchal number representing the frequency of the movement of the mobile surface (30) multiplied by the characteristic size of the hole (13) and divided by the air speed in the hole (13), is not greater, than the predetermined maximum.
EFFECT: lower costs.
15 cl, 10 dwg
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