Auxiliary bearing having a graphite stator for a rotary shaft mounted on magnetic bearings
US4982126A · kind A · utility
28Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Mar 31, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C37/002
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The auxiliary bearing comprises a chromium steel rotor (2) mounted on the rotary shaft (1), a graphite stator (3) mounted on the frame (5) and disposed to face the rotor (2) and to leave clearance relative thereto which is narrower than the air gap in the magnetic bearings which constitute the main supports of the rotary shaft, a network (4) of liquid feed channels opening out into the empty space between the rotor (2) and the stator (3), and selective control means for controlling the supply of liquid through said network of feed channels. The auxiliary bearing may be of the radial clearance type or of the axial clearance type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.