Patent ID: 8471423

Claim:
A transverse flux rotary machine comprising: first and second main parts mounted substantially coaxially about a main shaft, the main parts including a stator and a rotor rotatably mounted relative to the stator, the first main part comprising at least one energization coil, an intermediate part that is magnetically permeable, and fingers arranged along the circumference of the intermediate part at a constant finger pitch and alternately oriented in opposite directions, the fingers forming a first air gap surface, the fingers being disposed to form with the intermediate part a plurality of magnetic circuits around a portion of the coil, the second main part comprising a second air gap surface for closing the magnetic circuits formed in the first main part by intervention of the first air gap surface, and a permanent magnetization portion that is unidirectionally polarized, wherein the fingers are disposed to interlace, the second main part including protruberances carrying the second air gap surface, the protruberances being fastened to the permanent magnetization portion so as to have opposite polarities, the opposite polarity protruberances being alternately arranged along the circumference of the second main part with a protruberance pitch substantially identical to the finger pitch and wherein the second main part includes two magnetically permeable lateral parts mounted substantially coaxially relative to the main shaft, the lateral parts being disposed so as to oppose axial end faces of the permanent magnetization part so as to have opposite polarities, the protruberances of same polarity being disposed on one or the other of the lateral parts and arranged along the circumference of the lateral parts.