Fluid lubricated bearing device
US7566174B2 · kind B2 · utility
4Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2008 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Jan 10, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2370/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An inner space of a housing sealed with a seal member as well as internal pores of a bearing member (pores in a porous structure) are filled with a lubricating oil without the presence of air, so that the oil surface of the lubricating oil is within a seal space. Under a reduced pressure of 100 Torr, no lubricating oil leaks outside of the housing even at any attitude of the fluid lubricated bearing device such as normal, inverted, or horizontal attitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.