Electromagnetic bearing
US4597613A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1984 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Sep 14, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2380/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic bearing wherein a group of magnetic poles is formed on each end of a columnar yoke. The magnetic pole groups each include four magnetic poles which protrude from the center of the yoke at right angles to one another and to the longitudinal direction of the yoke. A cylindrical supported body surrounds the yoke and the magnetic poles. A ring-shaped member formed of a ferromagnetic material is fixed to the inner peripheral surface of the supported body so that both end portions of the ring-shaped member are in alignment with the centers of their corresponding magnetic poles of the magnetic pole groups. Magnetic fluxes delivered from each aligned pair of magnetic poles enter the ring-shaped member substantially at right angles to the peripheral surface thereof, and return to those original magnetic poles via another pair of magnetic poles adjacent thereto. Thus, the supported body is supported in its radial direction. Magnetic fluxes pass through the yoke along its longitudinal direction, enter one end face of the ring-shaped member at right angles thereto via the magnetic poles of the first magnetic pole group, pass through the ring-shaped member along its longitudi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.