Divided magnet rotors R having a stepped skew rather than a helical skew are described. The stepped skew enables the use of straight magnet sections (44) that can be inserted into the rotor core notches (38) thereby eliminating the need to produce a helix from the rotor cage. The stepped skew is effective in decoupling stator slot order harmonics. In addition, the stepped skew rotor R includes, in some embodiments, open slots (22) so that the rotor is not subject to rotor bridge saturation.
申请公布号
WO0001058(A1)
申请公布日期
2000.01.06
申请号
WO1999US14391
申请日期
1999.06.25
申请人
GENERAL ELECTRIC COMPANY;SABAN, DANIEL, MICHAEL;STEPHENS, CHARLES, MICHAEL;KLIMAN, GERALD, BURT