| 摘要 |
<p>The pump has a wet area (4) containing the rotor (3), and a separate dry area (5). Wet and dry areas are separate by a stationary armature (6) generating an electromagnetic rotary field. The windings (9) of the armature are connected to a stationary, pref. mechanical commutator (10) located in the dry area. The rotor has a first magnetic field device (16) on the side facing the armature, which is in electric motor action with the armature. A rotating pair of brushes (11,12) in the dry area is in contact with the commutator. The brushes are held by a rotating brush holder (13) with drive (17). The first and/or a second magnetic field device (16,26) are formed by a permanently magnetic material.</p> |
