Driving means formed by induction motor and method for starting the same
Compact bearingless machine drive system Patent #: 6034456
ApplicationNo. 10277059 filed on 10/21/2002
US Classes:318/772, Plural speed310/112Plural units, structurally united
ExaminersPrimary: Ro, Bentsu
Attorney, Agent or Firm
International ClassH02K 1736
AbstractAn electric motor controllable to operate at a number of distinct output speeds. The electric motor includes a single set of mechanical parts in combination with a multiple sets of electromagnetic parts having different configurations, where the number of electromagnetic parts corresponds to the number of distinct output speeds of the electric motor.