Counteracting gas ingestion in a hydrodynamic bearing spindle motor
US6985324B2 · kind B2 · utility
1Cited by
12References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2003 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Jan 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment of the present invention, a method of counteracting gas ingestion in a hydrodynamic bearing of a spindle motor in a data storage device comprises waiting for activity of a host connected with the data storage device to become idle. When the activity of the host becomes idle, a determination is made whether to release gas from a fluid of the hydrodynamic bearing of the spindle motor. Responsive to determining to release gas from a fluid of the hydrodynamic bearing of the spindle motor a motor spin down routine for the spindle motor is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.