Method and device for balancing rotary bodies with passive radial and active axial magnetic suspension and for orienting their axis of rotation
AssigneeSociete Nationale Industrielle Aerospatiale
InventorPierre Poubeau
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Abstract
A method and device for balancing magnetically suspended bodies wherein at the axial ends of the bodies are included two centering devices on the rotor side constituted by centered and excentric magnetic rings facing two centering devices on the stator side with centered and excentric magnetic rings, the magnetic field in the air gaps between the pairs of rings being made variable according to signals received from correction sensors of the axes and of the alignment.
Claims26
Method of balancing a rotary body with a stator, rotor and passive radial and active axial magnetic suspension and of orienting its axis of rotation, consisting of arranging at ends of said stator and rotor, pairs of magnetic rings facing each other with an air gap between them and with an axial field in said air gap, said magnetic rings being excentric on said rotor and concentric on said stator for placing in coincidence the axis of inertia with the rotor axis, said magnetic rings being concentric on said rotor and excentric on said stator for the orientation of the axis of rotation, the correction being obtained by variation of the induction on said magnetic rings of said stator.
Apparatus for balancing a rotary body and orienting its axis of rotation comprising a stator;
- rotor;
- and passive radial and active axial magnetic suspension including pairs of magnetic rings arranged at ends of said stator and rotor facing each other with an air gap between them and with an axial field in said air gap, said magnetic rings being excentric on said rotor and concentric on said stator for placing in coincidence the axis of inertia with the rotor axis, said magnetic rings being concentric on said rotor and excentric on said stator for the orientation of the axis of rotation;
- and means to vary the induction on said magnetic rings of said stator to obtain a correction for the coincidence and orientation.
Dependencies are inferred from the claim text.