Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-11-22
1995-01-17
Peckman, Kristine L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310 44, 310156, 148121, 252 6254, 29598, H02K 1503, H01F 122, H01F 2724
Patent
active
053828623
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.
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Boys William E.
Parker Sam B.
Ward Robert W.
Cichosz Vincent A.
General Motors Corporation
Haszko D. R.
Peckman Kristine L.
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