Electrical machine with magnetic bearing and safety bearing

Details Electrical machine with magnetic bearing and safety bearing Electrical machine with magnetic bearing and safety bearing

2011-05-31

2011-05-31

Hanh, Nguyen N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07952247

ABSTRACT:
In case there is a malfunction of the magnetic bearing in an electrical machine, in which such magnetic bearings drive a rotary shaft in a stator (10), a safety bearing (14,14′) is provided. According to the present invention, the safety bearing (14,14′) exhibits an outer ring (16,16′) that is mounted on the stator (10), inside of which a revolving ring (22,22′,26) is operated. The safety bearing according to the present invention is particularly suited for machines that have a particularly large and heavy shaft.

REFERENCES:
patent: 5714818 (1998-02-01), Eakman et al.
patent: 5739609 (1998-04-01), Taniguchi
patent: 6617733 (2003-09-01), Yamauchi et al.
patent: 2004/0189124 (2004-09-01), Baudelocque et al.
patent: 1 083 349 (2001-03-01), None
patent: 1 016 068 (1950-04-01), None
patent: 2 614 375 (1988-10-01), None
patent: 2004 132513 (2004-04-01), None

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