Magnetic bearing device
US5046151A · kind A · utility
7Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1990 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Jul 9, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C32/0444
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention discloses a magnetic bearing device having a control coil which supports a rotor in a vertical direction and a current controller which increases control current according to an increase in the clearance between the control coil and the rotor. The current controller includes a gain controller which controls the control current with a larger gain when clearance between the control coil and the rotor is less than a certain distance, and with a smaller gain when clearance between the control coil and the rotor is more than that distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.