Magnetic bearing

Details Magnetic bearing Magnetic bearing

2005-07-05

2005-07-05

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S06700R

Reexamination Certificate

active

06914361

ABSTRACT:
The invention relates to a magnetic bearing having a fixed first bearing portion and a movable second bearing portion which is contactlessly supported on the first bearing portion. The first bearing portion (12) comprises a magnetic coil (42) generating a magnetic field and having a yoke (44). The second bearing portion (18) comprising a permanent magnet (50) which is magnetized in alignment with the yoke (44). The permanent magnet of the second bearing portion has an attracting effect upon the yoke of the first bearing portion. To avoid this, the first bearing portion is provided with a permanently magnetized compensation magnet (54) which is located opposite the permanent magnet (50) of the second bearing portion (18) and is magnetized oppositely to the permanent magnet (50).

REFERENCES:
patent: 4036565 (1977-07-01), Becker
patent: 4337981 (1982-07-01), Meinke
patent: 4340260 (1982-07-01), Forster et al.
patent: 4379598 (1983-04-01), Goldowsky
patent: 4609332 (1986-09-01), Miki et al.
patent: 5686772 (1997-11-01), Delamare
patent: 25 37 367 (1976-04-01), None
patent: 3341716 (1984-05-01), None
patent: 19825854 (1999-12-01), None
patent: 10043235 (2002-03-01), None
patent: 664 410 (1995-07-01), None
patent: 2000283162 (2000-10-01), None

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