Passive oil level limiter
US9541312B2 · kind B2 · utility
3Cited by
23References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2008 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vapor expansion/compression system having an oil sump for lubrication of the turbine/compressor bearings includes an oil and/or vapor vent line leading from a strategic location in the oil sump to the condenser such that the oil level in the sump is limited to the predetermined level, and any excess oil is pumped from the sump to thereby prevent the oil level from reaching a level at which bearings failure could be caused due to a high oil level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.