(57) Abstract As for this invention, ideally in regard, to the radial fan & the wheel on the electric motor of the especially vacuum cleaner on the electric motor, ideally in curved line condition outside the extension and the curved surface the penetration mouth which in the fan which provide the feather which it has (3) and inside the curved surface (4) on & wheel board (8) and aforementioned fan & wheel which board (8) is provided it possesses (6). In order to decrease the occurrence of noise, this invention the penetration mouth which it is related to the feather (2) (6) feather (2) is provided outside the curved surface.
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