High performance magnetic bearing

Details High performance magnetic bearing High performance magnetic bearing

1993-07-27

1996-08-06

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68B, 32420725, H02K 709

Patent

active

055436730

ABSTRACT:
A magnetic bearing system (24) supports a shaft (20). The bearing system (24) includes a magnetic rotor (34) and a stator element (36) positioned in proximity to the rotor (34). A plurality of first electromagnets (40, 41, 42) are mounted in the stator element (36). The first electromagnets (40, 41, 42) are of relatively large size to provide high load bearing capacity. A plurality of second electromagnets (44, 45, 46) are mounted in the shator element (36) in spaced relation with the first electromagnets (40, 41, 42), the second electromagnets (44, 45, 46) being of relatively small size to provide high frequency response. Displacement sensors (56, 57, 58) sense position of the shaft (20) relative to the stator element (36). A controller (60) is coupled to the displacement sensors (56, 57, 58) and the electromagnets (40, 41, 42, 44, 45, 46) for controlling current thereto. The controller (60) develops a first set of current signals to the first electromagnets (40, 41, 42) and a second set of current signals to the second electromagnets (44, 45, 46).

REFERENCES:
patent: 4620752 (1986-11-01), Fremerey
patent: 4650132 (1987-03-01), Graf et al.
patent: 4686404 (1987-08-01), Nakazeki et al.
patent: 4763032 (1988-08-01), Bramm et al.
patent: 4885491 (1989-12-01), Hiyama et al.
patent: 4976177 (1990-12-01), Fouche
patent: 5027280 (1991-01-01), Ando et al.
patent: 5179308 (1993-01-01), Malsky
patent: 5216308 (1993-06-01), Meeks

Affiliated with

Also associated with

Rating

High performance magnetic bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High performance magnetic bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High performance magnetic bearing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2193203