TRACTION ELECTROMAGNET MAGNETIC CIRCUIT Russian patent published in 1996 - IPC

FIELD: electrical engineering. SUBSTANCE: traction electromagnet magnetic system has magnetizing winding 1 and magnetic circuit built up of movable armature 2, fixed base 3, and sections 4,5 in the form of set of ferromagnetic members folding towards displacement of armature 2. Working travel of magnetic circuit b is determined by small air gaps at which magnetic flux swelling is reduced. EFFECT: reduced distance and swelling loss of magnetic flux without reducing working travel of armature. 4 cl, 4 dwg