FIELD: vacuum cleaners. SUBSTANCE: vacuum cleaner with recirculation of air flow has impeller of fan and cooling fan arranged near electric motor; separate circuits for circulation of air sucked by means of impeller of fan for cleaning process and of air sucked by means of cooling fan. In such vacuum cleaner overheating of electric motor is eliminated. EFFECT: enhanced efficiency and operational characteristics of vacuum cleaner. 4 cl, 3 dwg
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|---|---|---|---|
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RU2253347C2 |
