Patent ID: 6940196

Claim:
A high-speed, permanent-magnet rotor ( 1 ) for dynamoelectric machines of high power density, comprising at least one spindle ( 2 ), a cylindrical sheath ( 4 ) coaxial with the spindle ( 2 ), and a plurality of permanent magnets ( 3 a to 3 c ) distributed between the spindle ( 2 ) and the cylindrical armouring sheath ( 4 ), characterized in that the spindle ( 2 ) has on its cylindrical circumference at least one spindle shoulder ( 2 g , 2 h ), at least one annular channel ( 2 i ) for receiving the permanent magnets ( 3 a to 3 c ), and at least one recess ( 2 j ), and the cylindrical armouring sheath ( 4 a , 4 b ) consists of synthetic-resin impregnated, filament-wound fibers, wherein all cavity parts of the rotor ( 1 ) are filled through a connecting channel ( 2 m ) that is located co-centric with the spindle axis, radial supply channels ( 2 k ) that branch from the connecting channel ( 2 m ), and the at least one recess ( 2 j ) using a high-pressure, compressed and cured filling compound used for pretensioned sealing and rigid joining of the permanent magnets ( 3 a to 3 c ), inserts ( 5 a to 5 d ) which segment the permanent magnets ( 3 a to 3 c ) from one another, and the inner surface of the armouring sheath ( 4 a , 4 b ).