FIELD: vacuum cleaning equipment. SUBSTANCE: vacuum cleaner has extract ventilator rotated by electric engine, suction nozzle connected with inlet side of extract ventilator through dust collector and flexible cable for supplying power to electric engine, which is controlled by electronic system and adapted for rotation at speed providing rotation of extract ventilator at rotational speed of at least 50,000 rev/min. Extract ventilator has turboventilation-type impeller. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 8 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| VACUUM CLEANER | 1994 |
|
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