Self-contained bearing lubrication system operating on oil ring lubricated by nozzle
US8242651B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 17, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lubrication system for an electrodynamic machine including therein an internal oil sump and at least one oil ring hydrodynamic bearing, wherein the oil ring is in fluid communication with oil, in the sump and replenishes oil in the bearing. The lubrication system includes an electrically powered oil sump pump that is oriented within the sump. An of intake is coupled to the pump and is in fluid communication with oil in the internal sump. An oil discharge line is coupled to the pump discharge. The distal end of the discharge line is oriented proximal the motor bearing, so that oil discharged therefrom replenishes oil in the bearing and shaft journal interface. The lubrication system oil discharge parameters are independent, of the motor speed, load or physical orientation, and may be varied by a controller coupled to the oil sump pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.