Alternating current generator rotor
US5382862A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Nov 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an alternating current generator of the Lundell type. The rotor shaft carries two segments which have interleaved pole teeth. The rotor has a core member and a field coil disposed about the core member. The segments and/or core member are formed of compressed powder iron particles having a particle size in a range of about 10 to 250 microns. In the manufacture of the core and/or segments the iron powder particles are coated with a thermoplastic material and this thermoplastic coated iron particle material is compacted in the molding dies of a press. After compaction to the desired shape, the part is sintered at a temperature of about 2050.degree. F. to burn-off the thermoplastic material that coated the iron particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.