Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-10-02
2007-10-02
Tamai, Karl (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S168000, C310S184000, C318S701000
Reexamination Certificate
active
10479959
ABSTRACT:
A motor (1) has a stator (2) and a rotor (10) mounted for rotation in the stator. A commutating salient pole (11) of the stator as a winding (7), and a field-producing salient pole (12) has a winding (8). The rotor has at least two salient poles (10a, b). An outer back-iron (13) magnetically joins bases of said stator poles. An inner back-iron (14) extends from the field pole around the rotor to such an extent that a substantial amount of the magnetic field in the rotor between its poles is short-circuited by the inner back-iron, at least for a part of its rotation. An electrical circuit powers the windings to drivingly rotate the rotor.
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R.P. Doedhar, et al. “The Flux-Reversal Machine: A New Brushless Doubly-Salient Permanent Magnet Machine” IEEE 1996, Speed Laboratory, University of Glasgow, Scotland, UK Industrial Electrical Engineering and Automation, Lund Institute of Technology, Sweden University Politehnica 1990 Timisoara, Romania.
Luedeka Neely & Graham PC
Tamai Karl
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