초록 ▼

A passive magnetic bearing suspension system for rotatable or translatable applications. Such bearings systems contain subsystems acting in mutually perpendicular directions to produce an overall system that is statically and dynamically stable. Further, these bearings can be constructed entirely of

A passive magnetic bearing suspension system for rotatable or translatable applications. Such bearings systems contain subsystems acting in mutually perpendicular directions to produce an overall system that is statically and dynamically stable. Further, these bearings can be constructed entirely of ring, disk, and/or bar-shaped magnets that are axially magnetized. This reduces the manufacturing difficulties associated with previous systems that required conical magnets and/or radial magnetization.

대표청구항 ▼

[ I claim:] [1.] A magnetic bearing system comprising:a) at least one rotatable member;b) a magnetic means for supporting said rotatable member wherein said magnetic means further stabilizes said rotating member and wherein said magnetic means includes i) at least one stationary magnetic assembly, i

[ I claim:] [1.] A magnetic bearing system comprising:a) at least one rotatable member;b) a magnetic means for supporting said rotatable member wherein said magnetic means further stabilizes said rotating member and wherein said magnetic means includes i) at least one stationary magnetic assembly, ii) and at least one rotatable magnetic assembly, and further such that the stationary magnetic assembly and the rotatable magnetic assembly are configured such that one portion of the stationary magnetic assembly and one portion of the rotatable magnetic assembly interact in repulsion, to provide stabilizing forces and mechanical stiffness in a first axis, and whereby a second portion of the stationary magnetic assembly and a second portion of the rotatable magnetic assembly interacts in attraction, providing stabilizing forces and mechanical stiffness in an axis orthogonal to said first axis;c) and further wherein the portion of the stationary magnetic assembly and the portion of the rotatable magnetic assembly that interacts in attraction comprise a stationary ring of magnetic material and a rotating ring of magnetic material, wherein the stationary ring of magnetic material has a magnetic field and the rotating ring of magnetic material has a magnetic field;d) and further wherein the magnetic fields of the stationary ring of magnetic material and the rotating ring of magnetic material are in substantially opposite disposition;e) and further wherein the stationary ring of magnetic material has an outer surface formed by a diameter of the stationary ring of magnetic material and an inner surface formed by a diameter of the stationary ring of magnetic material, and the rotating ring of magnetic material has an outer surface formed by a diameter of the rotating ring of magnetic material and an inner surface formed by a diameter of the rotating ring of magnetic material, and further such that the outer surface of one ring of magnetic material is substantially aligned with the inner surface of the second ring of magnetic material.