Shaft brush for turbomachinery

Details Shaft brush for turbomachinery Shaft brush for turbomachinery

1980-07-31

1983-03-29

McQuade, John

Geometrical instruments

339 6R, 339 8R, H01R 3940

Patent

active

043781381

ABSTRACT:
Destructive effects of shaft currents that are generated by residual magnetic fields in the stator or rotor are minimized by shaft grounding brushes that are positioned to contact a shaft surface and that are grounded externally of the machine. These brushes are desirably held by gravity against the shaft and with an indicator when maximum permissible wear has occurred on the brush.

REFERENCES:
patent: 1145926 (1915-07-01), Schweitzer
patent: 1271793 (1918-07-01), Stanley
patent: 2269614 (1942-01-01), Von Soden
patent: 2342936 (1944-02-01), Hansen et al.
patent: 2548631 (1951-04-01), Stapleton
patent: 3013143 (1961-12-01), Hayden

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