|
(11) | EP 1 025 792 A3 |
(12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||
(54) | Electrically powered aspirator unit with impeller for cooling the motor |
(57) A powered aspirator unit comprises an external shell (11) containing an electric
motor (12, 13) on the shaft of which is keyed the suction fan (17). Between the motor
and the fan there is a partition providing on a bottom face a fan containment cavity
and on the other face is made the stator part (23) of a motor cooling impeller (24).
In the partition (21) is made a seat (31) for a bearing (30) supporting the motor
shaft (14). |