Rotary armature with cooling of commutator

Details Rotary armature with cooling of commutator Rotary armature with cooling of commutator

1983-12-08

1985-04-23

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 61, H02K 928

Patent

active

045132178

ABSTRACT:
A commutator includes an annular end portion with a reduced diameter on each of its axially opposite sides formed by cutting away axially opposite end portions of a plurality of commutator segments included in the commutator into opposite steps, a shrink ring fitted onto the reduced diameter annular end portion remote from an armature clamp, a flanged shrink ring fitted onto the reduced diameter end portion near to the armature clamp and fitted onto a reduced diameter annular portion of an outer clamping ring of an L-shaped cross-section and supporting an armature coil, the shrink rings being formed of an insulating material.

REFERENCES:
patent: 923673 (1909-06-01), Lord
patent: 1684168 (1928-09-01), Bethel et al.
patent: 2315177 (1943-03-01), Zadnik
Shinko Electric Co., Ltd., Catalogue No. 92 (vol. 27, No. 1, 1982, p. 33) New Type DC Motors, GN and G Series.
Yasukawa Electric Mfg. Co., Ltd., Catalogue vol. 46, Serial No. 175 (No. 2 1982, p. 98) New Series DC Motors.

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