US Patent 10491093 Tubular linear induction motor suitable for transportation

The invention relates to an electrical linear induction motor which is adapted for tubular high speed transportation and constructed so that it contains an active tubular inductor (mover) made of ferromagnetic material carrying electrical windings in its slots and an outer passive inexpensive induct (stator) in shape of tube layered with conducting sheets. The mover can carry cargo inside its inner cavity, or one or more movers can be incorporated in a special vehicle movable inside the stator tube.