Spherical electric motors

Spherical electric motors

The history of spherical motors is traced, beginning with the initial research in the mid-1950s. Interest grew in the 1960s in their use in space, due to their light weight compared with that of conventional motors. In the 1970s, the spherical concept was applied to pumps where the impeller is of sp...

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Bibliographic Details
Published in:IEEE potentials Vol. 9; no. 3; pp. 47 - 48
Main Author: Miles, A.R.
Format: Journal Article
Language:English
Published: IEEE 01-10-1990
Subjects:
Educational institutions
Electric motors
Geometry
History
Induction motors
Magnetic fields
Magnetic materials
Micromotors
Power electronics
Space technology
Online Access:Get full text
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Summary:The history of spherical motors is traced, beginning with the initial research in the mid-1950s. Interest grew in the 1960s in their use in space, due to their light weight compared with that of conventional motors. In the 1970s, the spherical concept was applied to pumps where the impeller is of spherical shape so that no shaft seals are required. The 1980s saw still more activity, this time with a heavy influence on analysis. The complicated geometry of the motor, which results in a high production cost and does not seem to enhance reliability, has prevented commercial success. It may prove useful for large weightless structures to be constructed out in space.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0278-6648
1558-1772
DOI:10.1109/45.101402