Method and system for providing hard disk shrouds with aerodynamic fences for suppressing flow induced disk excitation
US8199426B2 · kind B2 · utility
4Cited by
18References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for stabilizing air flow in a shroud to disk region in a hard disk drive are disclosed. One embodiment provides a hard disk drive having a shroud with machined aerodynamic annulus insertions thereon for stabilizing the Ekman layer of air flow at the peripheral ends of the hard disks and the shroud. The aerodynamic annulus insertions are positioned in between disk pairs at approximately 1 mm from the peripheral ends of each disk to stabilize the air flow as the disk rotate and to ensure that the air flow leaves the hard disk drive at a fixed location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.