Combined radial and axial magnetic bearings

Details Combined radial and axial magnetic bearings Combined radial and axial magnetic bearings

1995-09-22

1998-03-17

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310 68B, 310 51, 32420725, H02K 709

Patent

active

057290660

ABSTRACT:
In a five-axis magnetic bearing, each of two combined radial and axial magnetic bearing structures includes a radial magnetic stator and a radial magnetic rotor. A shaft supports the rotors of the bearing structures. Each rotor and stator have an asymmetrical orientation such that the bearing structure is capable of creating a force in an axial direction when the bearing structure is excited. A creatable axial force of a first one of the bearing structures is capable of being in sufficient opposition to a creatable force of a second one of the bearing structures so as to maintain the shaft assembly in a desired axial position. The asymmetrical orientation may include, for example, a rotor being physically offset from a stator or a spatial distinction between a surface region of a respective rotor and a surface region of a respective stator. Examples of spatial distinctions include material extensions, notches, and holes. Each bearing structure can be controlled by four stator portions (actuators) with each actuator being supplied with current signals representative of a common mode axial force command and a respective differential radial force command.

REFERENCES:
patent: 4483570 (1984-11-01), Inoue
patent: 4882837 (1989-11-01), Higuchi
patent: 5117448 (1992-05-01), Penato et al.
patent: 5347190 (1994-09-01), Lewis et al.

Affiliated with

Also associated with

Rating

Combined radial and axial magnetic bearings does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-960696