Patent ID: 6072257
Filing Date: 2000-06-06
Classification: H02K

Abstract:
A flux commutating electrical machine including a stator and a rotor wherein said stator includes at least one armature coil housed in at least one pair of notches, said rotor includes means for selectively establishing closed magnetic circuits around sections of said at least one armature coil including at least one excitation permanent magnet adapted to establish a magnetic flux closing on itself in a circumferential direction of said rotor and at least one excitation coil adapted to establish a localized variable magnetic flux in an opposite circumferential direction to that of the flux produced by said magnets, said magnet or each magnet is housed in a first rotor part defining a first pair of rotor poles, said coil is or said coils are disposed around a second rotor part ends of which define a second pair of rotor poles, said rotor further includes at least one third rotor part disposed between said adjacent first and second rotor parts, said at least one first rotor part, said at least one second rotor part, and said at least one third rotor part form a circumferential magnetic conduction path for the magnetic flux established by said at least one permanent magnet.