Patent ID: 8803372

Claim:
An ironless magnetic motor system for moving an object comprising a pair of motors coupled to opposing sides of the object, wherein each motor of the pair of motors comprises: a magnetic track having an X drive axis and a Z levitation axis, the magnetic track including two rows of magnets linearly arranged along the X drive axis and separated by a linear air gap for generating a magnetic field across the linear air gap; a forcer including a set of coils disposed within the linear air gap, a coil of the set of coils having two levitating turn parallel to the X drive axis and orthogonal to the levitation axis and two drive turns orthogonal to the X drive axis and parallel to the Z levitation axis, wherein the two drive turns are connected together at opposite ends by the two levitating turns to form the coil; and a commutation current generator for generating a commutation current for moving the force=along the X drive axis and for moving the forcer along the Z levitation axis, wherein the forcer is offset from a center X-Z longitudinal plane of the linear air gap so that the forces is closer to a first row of magnets than to as second row of magnets of the two rows of magnets, and wherein forcers of the pair of motor are offset towards each other.