Direct-current machine having permanent magnet field system

Details Direct-current machine having permanent magnet field system Direct-current machine having permanent magnet field system

1985-08-22

1987-01-27

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310185, 310254, H02K 2126

Patent

active

046396250

ABSTRACT:
A direct-current machine having a rotor which includes a commutator, an armature core and an armature winding and is sustained rotatably in a field system constituted by a cylindrical housing and permanent magnets disposed inside the same. A demagnetizing force of an armature reaction due to an armature current is reduced by attaching a magnetic plate made of high saturation magnetic flux density material to a part of the pole-face of said field system of permanent magnets which is in the demagnetizing field.

REFERENCES:
patent: 3939371 (1976-02-01), Murakami
patent: 4110718 (1978-08-01), Odor
patent: 4445059 (1984-04-01), Corbach
patent: 4469969 (1984-09-01), Tomite
patent: 4471252 (1984-09-01), West

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