Field system of magnet type D.C. motor having magnetic flux redu

Details Field system of magnet type D.C. motor having magnetic flux redu Field system of magnet type D.C. motor having magnetic flux redu

1982-12-20

1984-08-07

Miller, J. D.

Electrical generator or motor structure

Dynamoelectric

Rotary

29515, 29596, 72325, 310 42, F16L 5507, H02K 2106

Patent

active

044645953

ABSTRACT:
In a field system of a magnet type D.C. motor constructed of a cylindrical yoke and a plurality of pole pieces, each of which is made of a permanent magnet member bonded to the inner peripheral surface of the yoke, an improved field system wherein each pole piece is formed with a recess along its central part. The yoke is provided with bent portions protruding inwards of the yoke, in correspondence with each recess, and the bent portions are held in engagement with the recess through an elastic member.

REFERENCES:
patent: 2903610 (1959-09-01), Bessiere
patent: 3110079 (1963-11-01), Wilson et al.
patent: 3497735 (1970-02-01), Diedrichs et al.
patent: 4364406 (1982-12-01), Bohlin

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