Permanent magnet stators

Details Permanent magnet stators Permanent magnet stators

1975-01-29

1977-01-18

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 44, 310254, 310152, 335302, 335303, H02K 2106

Patent

active

040041670

ABSTRACT:
Annular magnets, primarily for motor stators, are centrifugally cast from particulate materials and synthetic plastic materials. Iron particles and ferrite particles stratified during the spin casting procedures so that the former provide an outer stratum that serves as a yoke in the permanently magnetized structure. The anisotropic ferrite particles are magnetically oriented during casting by a rotating center magnet with the aid of bucking magnets that also rotate and serve to confine the field of the center magnet to the cavity area. Apparatus for carrying out the process is disclosed and includes means for introducing the plastic and particulate materials to the mold cavity while the mold is rotating as well as mold arrangements that facilitate material introduction by the creation of reduced pressure conditions in the cavity during the rotation of the mold. Permanent magnets or electromagnets may be used for ferrite particle orientation and compound magnets made from laminated and facially polarized rubber magnetic sections and which are arcuately bent are disclosed.

REFERENCES:
patent: 1976230 (1934-10-01), Kato et al.
patent: 3024392 (1962-03-01), Baermann
patent: 3102964 (1963-09-01), Bennett et al.
patent: 3248676 (1966-04-01), Marley
patent: 3257586 (1966-06-01), Steingroever
patent: 3872334 (1975-03-01), Loubier

Affiliated with

Also associated with

Rating

Permanent magnet stators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Permanent magnet stators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permanent magnet stators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-74415