Oil retention and delivery system for a bearing
US9453535B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2014 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Apr 23, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C19/163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing seal assembly of a rotary machine includes and inner shaft and an outer shaft. The outer shaft is disposed concentrically around and radially outward from the inner shaft. The space between the inner and outer shafts forms an annulus void. The inner shaft includes an oil inlet port through which lubricating oil enters the annulus void. A grooved structure is located on an inner surface of the outer shaft, and the grooved structure is configured to retain oil upon shutdown of the rotary machine. A bearing is located outside of the outer shaft. An oil outlet port is disposed in the outer shaft and is connected to the grooved structure for supplying lubricating oil to the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.