Patents Assigned to Kabushiki Kaisha Yaskawa Denki Seisakasho
  • Brushless motor having permanent magnet rotor and salient pole stator
    Patent number: 4719378
    Abstract: In a brushless motor, the number of magnetic poles P and the number of salient poles S are identified by:P=2.times.(m.times.k+l)S=2.times.m.times.kwherein m represents the number of phases and k represents an integer greater than 2. The windings wound about the k adjoining salient poles are made to belong to the same phase, but adjacent poles are oppositely wound.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: January 12, 1988
    Assignee: Kabushiki Kaisha Yaskawa Denki Seisakasho
    Inventors: Takashi Katsuma, Masao Kitoh