发明授权
US09473006B2 Electric motors 有权
电机

Electric motors
摘要:
Electric motors are disclosed with coils which induce a magnetic flux field which by its relationship with ferromagnetic poles provide the motoring force without use of an auxiliary magnetic field. The motors may be employed with fixed or pivotably mounted brushes. Pivotable brushes for electric motor brushes are disclosed.
公开/授权文献
信息查询
0/0