This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Permanent Magnet Geared Starters
Annotation ability available
Sector:
Language:
English
Abstract
A range of 4 pole ferrite magnet reduction gear starters is described with outputs of 1.0 kW, 1.4kW and 1.7 kW. These show substantial weight savings by comparison with present direct drive wound field starters. High intrinsic energy ferrite segments with innovative pole shields provide a high resistance to demagnetisation.
For lower power outputs, new designs of woundfield, direct drive starters provide the best cost/performance/weight compromise, geared ferrite magnet starters being lighter but too expensive. Direct drive ferrite magnet designs have inadequate stall torque to deal with hot starting problems.
The influence of Neodymium-Iron-Boron permanent magnets on starter design is discussed.
Recommended Content
Technical Paper | Recent Developments in Starting Systems |
Journal Article | Improvement of Transmission Efficiency in CVT Shifting Mechanism Using Metal Pushing V-Belt |
Technical Paper | Development and Service Experience of the PT6A Reduction Gearbox |
Authors
Citation
West, J., "Permanent Magnet Geared Starters," SAE Technical Paper 850377, 1985, https://doi.org/10.4271/850377.Also In
References
- Automobile cranking motors using permanent magnets West J G W MMPA conference January 1982
- Choice of P.M. materials for automotive starter motors Corbach R MMPA conference January 1982
- High power ferrite magnet motors for volume production West J G W Drives/Motors/Controls Conference October 1984
- European Patent Application. Publication No. 0112636