Patent ID: 7755239

Claim:
A magnetic repulsion type bearing comprising: a plurality of single pentagonally shaped electromagnets each provided with a field winding; a stator enclosing said plurality of single pentagonally shaped electromagnets, wherein said stator is made of permeable material; a rotor enclosed by said plurality of single pentagonally shaped electromagnets, wherein said rotor is made of permeable material; an outer casing enclosing said stator, wherein said outer casing is made of permeable material for isolating magnetism; an inner casing installed on an inner surface of said rotor, wherein said inner casing is made of permeable material for isolating the magnetism; and a current controlling device for controlling an amount of current and a direction of the current of said plurality of single pentagonally shaped electromagnets; so as to control a strength of a electromagnetic force and polarity; wherein said rotor and said stator are coupled together and said single pentagonally shaped electromagnets and said stator are arranged in an alternate manner to generate an electric repulsion force which induces a rotational magnetic field thereby balancing the magnetism between the plurality of single pentagonally shaped electromagnets and said stator, as a result, said plurality of single pentagonally shaped electromagnets are stably fixed at the proper position without excursion.