Patent ID: 8578860
Filing Date: 2013-11-12
Classification: B60L

Abstract:
1. An apparatus, comprising: a first track comprising a first levitation portion and a first current adjusting portion; a first Halbach (HB) array spaced from, by a first gap, and about parallel with, said first levitation portion for producing a first current in said first track, wherein there is no other Halbach array located on the side of said first levitation portion that is directly opposite with respect to said first Halbach array; a second Halbach array spaced from and about parallel with said first current adjusting portion for producing a second cur t in said first track, wherein said first current and said second current are opposite in polarity; a second track comprising a second levitation portion and a second current adjusting portion; a third Halbach array spaced from, by a second gap, and parallel with, said second levitation portion for producing a third current in said second track, wherein there is no other Halbach array located on the side of said second levitation portion that is directly opposite with respect to said third Halbach array; and a fourth Halbach array spaced from and parallel with said second current adjusting portion for producing a fourth current in said second track, wherein said third current and said fourth current are opposite in polarity, wherein upon movement along said track, said first Halbach array will levitate above said first levitation portion and said second Halbach array will levitate above said second levitation portion.