Magnet arrangement for axial flux focussing for two-pole permane

Details Magnet arrangement for axial flux focussing for two-pole permane Magnet arrangement for axial flux focussing for two-pole permane

1980-08-28

1981-12-29

Miller, J. D.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68R, 310156, H02K 122

Patent

active

043084796

ABSTRACT:
A two-pole permanent magnet A.C. machine employs one set of permanent magnets disposed with their magnetic axes parallel to the axis of rotation of the rotor and a second set of permanent magnets disposed so that their magnetic axes are oriented radially. This arrangement allows for significant reduction in flux leakage from the machine rotor and an increase in the power density of the machine.

REFERENCES:
patent: 3334254 (1965-08-01), Kober
patent: 3836802 (1974-09-01), Parker
patent: 3906268 (1975-09-01), de Graffenried
patent: 4011475 (1977-03-01), Schmider
patent: 4104787 (1978-08-01), Jandeska et al.
patent: 4216400 (1980-08-01), Lynch et al.
Binns, K. J. et al., "Permanent-Magnet A.C. Generators" Proc. IEE, vol. 126, No. 7, Jul. 1979, pp. 690-696.
Richter, E., "Rare Earth Cobalt Permanent Magnets for Electrical Machines of Medium to Large Power Ratings", General Electric Corporate Research and Development Center, Report _No. 79CRD012, Feb. 1979.
Marshall, R. A., et al., "Conceptual Study of Permanent Magnet _Machine Ship Propulsion Systems", Final Report to Office of Naval Research, Material Sciences Division, Report No. _SRD-77-170, Dec. 1977.
Richter, E., et al., "Conceptual Designs and Parametric Analysis of Permanent Magnet Machinery", Final Report to Naval Ship Research and Development Center on Contract No. N00167-79-C-0242, Mar. 1980.

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