L-shaped magnetic thrust bearing

Details L-shaped magnetic thrust bearing L-shaped magnetic thrust bearing

1998-09-17

1999-12-28

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 709

Patent

active

060085584

ABSTRACT:
An electromagnetic thrust bearing having reduced windage losses, improved structural integrity, and enhanced electromagnetic flux density. The present invention provides an electromagnetic thrust bearing having a first annular stator segment and a second annular stator segment joined thereto to define an annular electromagnetic coil chamber having an L-shaped cross-section. By employing first and second stator segments, the electromagnetic coil can be precision wound onto one segment without interference from the other segment, and then the two segments can be joined after the precision winding has been performed. The first segment is joined to the second segment at a location remote from the stator poles to thereby provide a more structurally sound assembly able to better withstand loads imposed thereon. The stator segment pole faces include axially extending lips to maximize electromagnetic flux density and thus load carrying capacity.

REFERENCES:
patent: 3909082 (1975-09-01), Ishikawa
patent: 4948348 (1990-08-01), Doll et al.
patent: 5027280 (1991-06-01), Ando et al.
patent: 5068558 (1991-11-01), Yamamura
patent: 5101130 (1992-03-01), Jayawant et al.
patent: 5153475 (1992-10-01), McSparran
patent: 5256637 (1993-10-01), Rao
patent: 5315197 (1994-05-01), Meeks et al.
patent: 5406157 (1995-04-01), New

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