Dynamic pressure gas bearing device
US4805972A · kind A · utility
35Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Jan 22, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2370/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Disclosed is a dynamic pressure gas bearing device in a rotational unit in which a rotational member put on a cantilevered fixed shaft is designed such that an operating gas generated by a dynamic pressure groove formed between the fixed shaft and the rotational member is directed into a pressure chamber between the fixed shaft and the rotational member and supports the rotational member in the thrust direction and that the pressure in the pressure chamber is adjusted by a hole formed in the fixed shaft or the rotational member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.