Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1993-04-26
1994-11-15
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 42, 310112, 310156, 310179, H02K 112
Patent
active
053651375
ABSTRACT:
A modular, expandable, low-weight electric motor has a cylindrical, non-magnetic casing formed in axially-aligned sections. The casing sections are releasably connected to define a unitary structure with a polygonal exterior surface and a circular interior surface. Separate U-shaped stator pole assemblies are releasably mounted against the exterior of the casing, each casing section carrying the poles associated with a different motor phase. The poles extend through apertures into the interior of the casing, and have active pole faces which are curved and substantially flush with the circular interior surface of the casing. A modular rotor is mounted in the interior of the casing and carries magnetic elements in axially spaced-apart sets corresponding to each motor phase. The active faces of the magnetic elements are curved and oriented in a cylindrical arrangement. During each rotation of the rotor, the pole faces of each motor phase simultaneously and repeatedly register with the associated magnetic element faces forming air gaps, and the magnetic elements simultaneously complete local magnetic circuits with each stator pole assembly. The sets of magnetic rotor elements are indexed circumferentially relative to one another such that the motor is self-starting.
REFERENCES:
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patent: 2982873 (1961-05-01), Simmons et al.
patent: 3021444 (1962-02-01), Simmons et al.
patent: 3047755 (1962-07-01), Angst et al.
patent: 3244919 (1966-04-01), Drenth et al.
patent: 3246187 (1966-04-01), Iemura
patent: 4636668 (1987-01-01), Nikaido
patent: 5200662 (1993-06-01), Tagami
patent: 5208498 (1993-05-01), Hamajima
Mizera Wojciech
Richardson Lyman
Dynamic Systems International Inc.
Skudy R.
Waraksa Mirek A.
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