Current collector with compliant brush containing liquid metal r

Details Current collector with compliant brush containing liquid metal r Current collector with compliant brush containing liquid metal r

1978-02-17

1980-01-29

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310219, H02K 3100

Patent

active

041863216

ABSTRACT:
A current collector for an electrical machine employs a rotor collector ring encircled by a stator collector ring to which a compliant brush of U-shaped cross section and fabricated of an electrically conductive, liquid metal-permeable material is attached. The region enclosed between the stator collector ring and the brush is filled with liquid metal which seeps outward through the brush interstices, forming on the brush a thin liquid metal film which makes sliding contact with the rotor collector ring, enhancing conductivity between the rotor and stator collector rings through the brush filaments.

REFERENCES:
patent: 3681633 (1972-08-01), McNab
patent: 3989968 (1976-11-01), Hatch
patent: 4024422 (1977-05-01), Gill
patent: 4027183 (1977-05-01), Hatch
patent: 4027184 (1977-05-01), Hurley

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