Metal working – Method of mechanical manufacture – Electrical device making
Patent
1984-12-06
1986-10-21
Rosenbaum, Mark
Metal working
Method of mechanical manufacture
Electrical device making
310156, 310 42, 310262, 228186, 228131, 228175, 228161, H02K 1502
Patent
active
046177264
ABSTRACT:
A permanent magnet rotor construction technique resulting in a rotor having excellent stiffness characteristics and being capable of higher speeds and longer lengths is disclosed. The rotor is constructed using nonfusion bonding techniques whereby an inner cylinder of magnetizable material is bonded inside a hollow outer cylinder of non-magnetizable material, with the resulting assembly having cylindrical end pieces also of non-magnetizable material bonded at each end. Pockets for receiving the rare earth permanent magents are then machined through the outer cylinder, and the magnets are mounted in the pockets in contact with the magnetizable material of the inner cylinder. Construction of the rotor is completed by installing a thin cylindrical shell over the permanent magnets in the areas of the rotor adjacent thereto.
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Echols P. W.
Miller Albert J.
Miller Leslie S.
Rosenbaum Mark
The Garrett Corporation
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