Slip ring and brush arrangement

Details Slip ring and brush arrangement Slip ring and brush arrangement

1975-03-25

1976-10-05

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310227, 310241, H02K 928

Patent

active

039847160

ABSTRACT:
A slip ring for the transfer of very large currents to the rotor of an electric power generator is provided with a slip contact surface in the form of a surface of revolution oblique to the axis of rotation that is a ruled surface, which is to say straight lines (known as generatrices) can be drawn on it, whether the surface be flat, as a conical surface, or curved as, for example, a hyperboloidal surface. Cooling grooves centered on straight lines are provided, as well as cooling channels beneath the surface and parallel to it, through which air passes and may thereafter be used to cool the brushes and their supports. The brushes are arranged on self-adjusting ring-shaped carriers hung on centering arms rolling on axially directed guides and urged by a spring arrangement so as to press the brushes towards the slip ring. When one ring of brushes is worn away, it is carried beyond the slip ring where it can be removed for renewal and new rings of brushes can be added, all without stopping the generator.

REFERENCES:
patent: 1066175 (1913-07-01), Barry
patent: 2790100 (1957-04-01), Caputo
patent: 2950403 (1960-08-01), Kilner
patent: 3396586 (1968-08-01), Maclin

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