Controlled radial magnetic bearing
Patent 6885121 Issued on April 26, 2005. Estimated Expiration Date: 
July 4, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 4, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesFixed gain electromagnetic actuator and electromagnetic bearing incorporating same Electromagnetic stepper motor Pulse generator having index angles formed by permanent magnet rotor Pulse generator High specific load capacity radial magnetic bearing actuator Patent #: 5962940 AbstractThe flux densities formed by plural electromagnet poles M1 to M12 which are arranged at a predetermined interval in a circumferential direction of a rotary body 1 at the same position in an axial direction of the rotary body 1 are gradually changed in the circumferential direction of the rotary body. Even if there is a difference between the maximum value of the flux density and the minimum value, the change of the flux densities between the adjacent electromagnet poles is small and smooth. Accordingly satisfactory detective sensitivity and detection results can be obtained. | |
