Magnetic bearing and coupling device

Details Magnetic bearing and coupling device Magnetic bearing and coupling device

2011-01-18

2011-01-18

Denion, Thomas E (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055100, C310S090500, C464S029000, C417S420000

Reexamination Certificate

active

07871254

ABSTRACT:
A follower shaft is rotatably supported coaxially with a driving shaft. An inner rotary permanent magnet having poles in a radial direction is fixed around an outer circumference of the end of the follower shaft. On the inner circumferential surface of a cylindrical coupling, an outer rotary permanent magnet is fixed such that opposite poles face each other between the inner rotary permanent magnet and the outer rotary permanent magnet. A fixed permanent magnet is fixed such that like poles face each other between the fixed permanent magnet and the inner rotary permanent magnet. Thus, rotation of the driving shaft is transmitted to the follower shaft without contact.

REFERENCES:
patent: 6149405 (2000-11-01), Abe et al.
patent: 6551075 (2003-04-01), Gabrieli et al.
patent: 7262531 (2007-08-01), Li et al.
patent: 7800268 (2010-09-01), Sun et al.
patent: 11-044297 (1999-02-01), None

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