Patent ID: 8772992

Claim:
An airfoil-magnetic hybrid bearing comprising: a housing around a rotating shaft of a rotation device; an airfoil bearing positioned between the housing and the rotating shaft and configured to form dynamic pressure to levitate the rotating shaft during rotation of the rotating shaft; a magnetic bearing comprising cores positioned radially between an inner surface of the housing and an outer surface of the airfoil bearing, the cores being projected to the center of the rotating shaft, and coils wound around the cores, the coils configured to levitate the rotating shaft using a magnetic attractive force generated by a current application thereto; and a coupling segment configured to couple the airfoil bearing to the magnetic bearing directly, wherein the spaces between the cores and the coils are charged by dielectric bodies, wherein a fixing slot is formed at one of the dielectric bodies, wherein one end of the airfoil bearing is coupled to the coupling segment, wherein the fixing slot becomes narrower while it becomes closer to the center of the rotating shaft, and wherein the coupling segment has a shape corresponding to the fixing slot, the coupling segment being inserted into the fixing slot in a longitudinal direction to the rotating shaft for fastening.