H - Electricity – 02 – K
Patent
H - Electricity
02
K
H02K 15/03 (2006.01) H02K 1/27 (2006.01)
Patent
CA 2408655
The invention relates to a method for manufacturing a permanent-magnet excited rotor for a high speed electric motor, according to which method a support sleeve is mounted with a pre-tension around the rotor body, characterised in that the sleeve is expanded by a liquid that solidifies and is solid at the working temperatures of the rotor, said liquid is injected under pressure between the sleeve and the rotor body and held under pressure during solidification.
L'invention concerne un procédé de fabrication de rotor excité par aimants permanents pour moteur électrique à grande vitesse, dans lequel une douille (1) d'appui est montée avec une tension préalable autour du corps (2) de rotor. L'invention est caractérisée en ce que la douille est dilatée par un liquide qui se solidifie et est solide aux températures de fonctionnement du rotor; ce liquide est injecté sous pression entre la douille et le corps de rotor, et maintenu sous pression pendant la solidification.
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