Patent ID: 7582997

Claim:
An arrangement for conveying fluids that comprises a fluid pump ( 174 ), implemented as a centrifugal pump, having a rotatably journaled pump wheel ( 172 ) that is joined to a first permanent magnet ( 186 ); an electronically commutated internal-rotor motor ( 152 ) having a stator ( 154 ) and a rotor ( 156 ); a shaft ( 160 ) associated with the rotor ( 156 ), which shaft is journaled, using a pair of bearings ( 162 , 164 ) , rotatably relative to the stator ( 154 ); a second permanent magnet ( 184 ) joined nonrotatably to the rotor ( 156 ), which magnet coacts with the first permanent magnet ( 186 ) to thereby function as a magnetic coupling; a separating can ( 170 , 180 , 188 ) that hermetically separates the first permanent magnet ( 186 ) of the magnetic coupling, arranged inside said separating can, from the second permanent magnet ( 184 ) arranged outside the separating can, one of said bearings ( 164 ) for the shaft of the rotor ( 156 ) being arranged outside the separating can thereon; a support arrangement ( 204 ) , joined to the stator ( 154 ) , for another of the bearings ( 162 ) of the shaft ( 160 ) of the rotor ( 156 ); and a fan wheel ( 218 ), equipped with fan blades ( 220 ), that is joined nonrotatably to a rotor shaft end region ( 214 ), facing away from the separating can ( 170 , 180 , 188 ), of the shaft ( 160 ) of the rotor ( 156 ).