High speed variable reluctance motor with equal tooth ratios

Details High speed variable reluctance motor with equal tooth ratios High speed variable reluctance motor with equal tooth ratios

1988-11-01

1990-08-07

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310269, H02K 3704

Patent

active

049470663

ABSTRACT:
A variable reluctance motor having untapered stator teeth and more rotor teeth than stator teeth. Two stator teeth are formed on each stator pole. The rotor tooth ratio (of tooth width to gap between teeth width) is equal to the stator tooth ratio for the two teeth on each stator pole. The rotor tooth ratio is in the range of about 0.70 to about 0.90, preferably about 0.78. With this configuration the motor has very low torque ripple. The stator teeth are magnetically saturated, so the motor can be operated at current levels above the saturation point, producing a linear torque to current function and high output torque.

REFERENCES:
patent: 4316111 (1982-02-01), Merki et al.
patent: 4496886 (1985-01-01), Gordon et al.
patent: 4638195 (1987-01-01), Lin
patent: 4647802 (1987-03-01), Konecny
patent: 4758752 (1988-07-01), Leenhouts

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