Overmoulded or canned electrical machine

Details Overmoulded or canned electrical machine Overmoulded or canned electrical machine

2011-07-26

2011-07-26

Le, Dang D (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S086000, C310S043000

Reexamination Certificate

active

07986070

ABSTRACT:
A rotary electric machine having at least one piece of electric equipment constituted by an overmolded or jacketed electric motor or by an overmolded or jacketed magnetic suspension system; the electric equipment including firstly a rotor (102) and secondly a stator (150) having pole pieces (154) and coils (152); the stator (150) being provided with at least one jacket (101) or coating (190) to protect it against an aggressive environment, on its face situated facing the rotor (102); the protective jacket (101) or coating (190) on the face of the stator (150) facing the rotor (102) presenting set-back portions (111) set back from the main surfaces (155) defining the airgap (e), these set-back portions (111) being distributed around the stator; and the movement of fluid circulating in the airgap around the rotor (102) being thus enhanced.

REFERENCES:
patent: 2428236 (1947-09-01), Maxwell
patent: 2428816 (1947-10-01), Sigmund et al.
patent: 2654848 (1953-10-01), Schaefer
patent: 2698911 (1955-01-01), Schaefer
patent: 3560776 (1971-02-01), Kildishev et al.
patent: 3984711 (1976-10-01), Kordik
patent: 5698917 (1997-12-01), Shultz

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