An electric pulse motor having a rotatably supported rotor including a plurality of equiangularly arranged rotor teeth carried by a support element and a stator assembly including a number of stator elements stationarily arranged around the rotor. The stator teeth of the stator assembly project toward one another across an air gap and both face the rotor teeth between them. Each of said plurality of rotor teeth is a laminated element made by stacking a plurality of laminations in the radial dire...

An AC motor control method and apparatus therefor, for controlling an AC motor 11 by holding the excitation current I.sub.0 of the AC motor 11 constant and varying primary current I.sub.1 in accordance with a speed deviation .DELTA.n. Stored previously in a memory device 18 are a torque T-slip frequency .omega..sub.s characteristic, a slip frequency .omega..sub.s -primary current vector I.sub.1 characteristic, and a slip frequency .omega..sub.s and phase .phi..sub.1 characteristic which take sec...

A floating apparatus for use in an attractive floater railway includes a magnetic rail mounted on the underside of a track. The magnetic rail comprises sheets of ferromagnetic material laminated together and is formed to have a cross section in the shape of a trapezoid or a quadrant of a circle with faces of the rail including a horizontal surface and a vertical surface. A guiding electromagnet is disposed opposite to the vertical surface and a supporting electromagnet is disposed opposite to th...

The disclosure relates to an improved electric pulse motor having an arrangement wherein, with respect to a rotor element having a number of rotor-teeth, a stator assembly including a number of geometrically and electrically paired laminated U-shape stator elements is assembled based upon the conventional arrangement, but, the rotor element is provided with a specific construction for strengthening the rotor-teeth, so that radially extended rotor-teeth are reduced in axial thicknesses so as not ...