Permanent magnet rotor construction wherein relative...

Details Permanent magnet rotor construction wherein relative... Permanent magnet rotor construction wherein relative...

2006-05-09

2006-05-09

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

Reexamination Certificate

active

07042118

ABSTRACT:
A rotor construction may comprise a rotor with a centrally located permanent magnet section having aligned magnet segments and having a central hole throughout its length. A thin rod of magnetic steel is located in this central hole to support the permanent magnets from within. At each end of the rod are located threaded sections for attachment to supporting end stubs. A high strength steel sleeve is interference fit over both the magnets and the end stubs to provide a mechanical link from stub to stub. The guide rod insures that the end stubs and central magnet are concentric during initial processing, prevents relative motion between the rotor components and provides support for the magnet once the sleeve is installed.

REFERENCES:
patent: 4365179 (1982-12-01), Mayo Magdaleno
patent: 4667123 (1987-05-01), Denk et al.
patent: 4741094 (1988-05-01), Denk et al.
patent: 4942322 (1990-07-01), Raybould et al.
patent: 6727617 (2004-04-01), McMullen et al.
patent: 6838792 (2005-01-01), Matsushita et al.
patent: 6882073 (2005-04-01), Suzuki et al.

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