Cooling for brushes of electric motors

Details Cooling for brushes of electric motors Cooling for brushes of electric motors

1979-10-22

1982-01-19

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310239, H01J 1720

Patent

active

043119352

ABSTRACT:
In an electromotor having a stator and a rotor, a collector is located on the rotor and carbon brushes are movably supported in carbon supports relative to the outer circumferential periphery of the collector. Segment-shaped shells are located on the upstream sides of the carbon brushes and cover an angular part of the outer circumferential periphery of the collector. Downstream of the carbon brushes the outer circumferential periphery of the collector is uncovered. Accordingly, the collector can be cooled while protecting the collector and carbon brushes from contamination.

REFERENCES:
patent: 2389214 (1945-11-01), Shobert
patent: 2744205 (1956-05-01), Kalikow
patent: 3919574 (1975-10-01), Schmuck

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