Electrical machine

Details Electrical machine Electrical machine

1997-07-30

1999-10-26

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, 310114, 310112, 310261, H02K 2112, H02K 3712

Patent

active

059734361

ABSTRACT:
An electrical machine has a rotor shaft (12) which carries a plurality of rotor discs (14) for rotation therewith. Each rotor disc (14) has pairs of rotor rims (16) secured thereto. Each rotor rim (16) consists of a single row of alternate magnets (20) and laminated pole pieces (18) and is opposed by a series of stator cores (22) which straddle the rotor rim (16). Armature windings (24) are disposed within the stator cores (22) for operably exciting said stator. The phase relationship between the currents through the armature windings (24) and the orientation of the stator cores (22) or the magnets (20) in opposing rims (16) are such that the effects of electromagnetic coupling, long path fluxes and torque ripple is reduced.

REFERENCES:
patent: 5289072 (1994-02-01), Lange
patent: 5334898 (1994-08-01), Skybyk
patent: 5365137 (1994-11-01), Richardson et al.
patent: 5773910 (1998-06-01), Lange

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