CPC F16J 15/3288 (2013.01) [H02K 5/124 (2013.01); H02K 11/40 (2016.01)] | 18 Claims |
1. A system comprising:
a housing defining an axis;
a shaft positioned along the axis;
a stator coupled to the housing;
a rotor coupled to the shaft;
a first shaft bearing and a second shaft bearing coupled to the housing, wherein the first and second shaft bearings are each configured to contact the shaft to permit rotation of the shaft;
a bearing lubrication system fluidically coupled to the first and second shaft bearings, wherein the bearing lubrication system is configured to lubricate the first and second shaft bearings using a lubricant; and
a first shaft seal and a second shaft seal coupled to the housing and forming a barrier across an air gap in a shaft opening between the housing and the shaft, wherein the first and second shaft seals are each configured to substantially seal the lubricant within a bearing chamber of a respective first or second shaft bearing or sump of the bearing lubrication system, and wherein at least one of the first or second shaft seals comprises a brush seal configured to discharge a shaft voltage-induced current from the shaft to an external ground of the system.
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