| 摘要 |
dust suction apparatuses. SUBSTANCE: vacuum cleaner includes housing provided with suction and outlet openings. Power unit and filter are arranged in housing. Vacuum cleaner also includes adaptor with opening joined by means of hose with suction opening of housing. Adaptor is in the form of hollow cylindrical body and it has inner duct passing along cylindrical wall of adaptor on part of its perimeter. Additional hose connects inner duct of adaptor with outlet opening of housing of vacuum cleaner. EFFECT: enhanced efficiency of dust trapping due to creating turbulent air flow in adaptor and due to using energy of air jet discharged out of vacuum cleaner. 4 cl, 3 dwg
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