SINGLE-PHASE INDUCTION MOTOR Russian patent published in 1999 - IPC

FIELD: electrical and electromechanical engineering. SUBSTANCE: motor rotor is made in the form of multiple-entry helical composite layers of magnetically soft material, including ferric silicide, and magnetically hard materials alternating lengthwise of rotor in following sequence of material layers and silicon ingredients: Fe; magnetically hard material; FeSi (1.5-0.05% of Si); magnetically hard material; FeSi (3.0-0.05% of Si); magnetically hard material; FeSi (4.5-1% of Si); magnetically hard material; FeSi (6.0-0.15% of Si). EFFECT: enlarged functional capabilities; improved power characteristics of motor. 2 dwg