Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1977-01-06
1978-09-05
Budd, Mark O.
Electrical generator or motor structure
Dynamoelectric
Rotary
310156, H02K 2126, H02K 2304
Patent
active
041123204
ABSTRACT:
An elongated ferrite structure of barium or strontium ferrite is constructed of zones in which the ferrite materials are made to have different magnetic properties, the ferrite material located in the region of the highest demagnetizing stress placed thereon when incorporated into a dynamo electric machine, due to the armature reaction, being made of ferrite of high coercive force, the remaining regions of the magnet structure being made of ferrite material having high remanence, the entire structure being, preferably, a single element.
REFERENCES:
patent: 3594599 (1971-07-01), West
patent: 3939371 (1976-02-01), Murakami
Budd Mark O.
Robert & Bosch GmbH
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