Electrostatic oil ring, electrostatic oil ring assembly, and electrodynamic machine
AssigneeSiemens Industry, Inc.
InventorsDaniel Lasorso, Sumit Singhal
Life of this patent
Estimating the term…
Abstract
An electrostatic oil ring (130, 150) has an annular ring body (142, 152) with a surface (132, 134, 136, 138, 154), wherein a portion of the surface (132, 134, 136, 138, 154) carries an electrostatic coating (140, 156) which electrostatically attracts lubricant (35a) in a lubricant reservoir (35) when the electrostatic oil ring (130, 150) passes through the lubricant reservoir (35). Further, an electrostatic oil ring assembly with a plurality of electrostatic oil rings (130, 150), and a dynamoelectric machine with an electrostatic oil ring assembly are provided.
Claims21
-20. (canceled)
An electrostatic oil ring comprising an annular ring body with a surface, wherein at least a portion of the surface carries an electrostatic coating which electrostatically attracts lubricant in a lubricant reservoir when the oil ring passes through the lubricant reservoir.
An electrostatic oil ring assembly comprising a plurality of electrostatic oil rings, each oil ring comprising an annular ring body with a surface, wherein at least a portion of the surface carries an electrostatic coating which electrostatically attracts lubricant in a lubricant reservoir when the oil ring passes through the lubricant reservoir.
An electrodynamic machine comprising:
- an internal lubricant reservoir;
- and
- at least one hydrodynamic bearing without a pressurized oil feed system, the hydrodynamic bearing comprising at least one oil ring in fluid communication with lubricant in the internal lubricant reservoir, the at least one oil ring comprising an annular ring body with a surface, wherein at least a portion of the surface carries an electrostatic coating.
Dependencies are inferred from the claim text.