Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1986-01-17
1987-10-20
Salce, Patrick R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310156, 310164, H02K 2116
Patent
active
047016566
ABSTRACT:
An electromechanical device which can be used as a motor or as a generator. The device has a housing, including bearing means to support a rotatable shaft. Disc magnet means are provided, and poled to have alternating polarity and are mounted on the shaft to define a rotor.
The device is an improvement in those which include at least one first pole shoe in contact with the magnet means, having a portion extending radially therefrom to define a virtual pole chamber, of a first polarity. Also included is at least one second pole shoe in contact with the magnet and having a portion extending radially therefrom to define a virtual pole chamber of the other polarity. A toroid stator is mounted on the housing and has windings thereon. The stator is positioned annularly around the disc magnets such that the virtual pole chambers of the first and second pole shoes surround portions of said windings with circumferentially alternating fields of alternating polarity. The improvements include a plurality of slots in the toroid stator core which are of sufficient depth to accommodate the windings on the stator, so as to eliminate any air gap caused by said windings between the pole shoes and the stator. Another improvement is the use of segmented cores for ease of assembly. Another improvement is achieved by forming the pole shoes in a skewed direction by an angle of from less than 1.degree. up to 20.degree. from the radial axis.
REFERENCES:
patent: 2885645 (1959-05-01), Wennerberg
patent: 3459981 (1969-08-01), Dotto
patent: 4410820 (1983-10-01), Stanley
patent: 4459501 (1984-07-01), Fawzy
patent: 4565938 (1986-01-01), Fawzy
patent: 4605874 (1986-08-01), Whiteley
Intra-Technology Associates, Inc.
Munday John S.
Rebsch D. L.
Salce Patrick R.
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