Vacuum cleaner has auxiliary air valve, moving locking element, elastic element and separator with air opening, where locking element is brought in closed position by elastic element

摘要

The vacuum cleaner has an auxiliary air valve (30), a moving locking element (50), an elastic element (37) and a separator (33) with an air opening (60). The locking element is brought in a closed position by the elastic element. The characteristics of the air valve run in digressive sections in force-displacement curve.