Armature rotors for electromagnetic retarders

Details Armature rotors for electromagnetic retarders Armature rotors for electromagnetic retarders

1987-04-24

1988-05-17

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

188264AA, 416186R, H02K 4900, F16D 6527

Patent

active

047453176

ABSTRACT:
An armature rotor for an electromagnetic retarder includes at least one disk (2) made from a ferromagnetic material connected to an inner fixing ring (7) by an annulus of arms (9) forming ventilation fins, the largest diameter portions of these arms projecting axially from the face of the disk opposite the air gap (E), and the crests of these portions being joined together by an annular web (10), the assembly formed by the disk, the ring, the arms and the web being formed of a single molded block. The maximum outer diameter of the ventilation stucture formed by the arms and the web is greater than the outer diameter of the disk, considered at the level of the mean plane of this disk. Two thin collars (13 and 14) defining therebetween a groove (15) extend the two axial faces of the disk radially outwardly.

REFERENCES:
patent: 3394780 (1968-07-01), Hodkinson
patent: 3871466 (1975-03-01), Bessiere

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