Synchronous motor

Details Synchronous motor Synchronous motor

1975-12-22

1977-11-22

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310257, H02K 2112

Patent

active

040597806

ABSTRACT:
A synchronous motor comprises a rotor of permanently magnetized high coercivity material and a stator formed of two metal plates having projecting imbricated poles which are placed between an induction coil and the rotor. The air gaps between the ends of the poles of one plate and the other plate are at most equal to one tenth the length of said poles and up to a maximum value of 1.2 mm, so as to increase the self-induction of the coil hence enabling a reduction of its resistance and a saving in the cost of the wire of the coil.

REFERENCES:
patent: 3414751 (1968-12-01), Bossard
patent: 3857053 (1974-12-01), Yatsushiro et al.
patent: 3940645 (1976-02-01), Takita

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