Aerodynamic diverter integrated with a diffuser and a contraction in a bypass channel for a disk storage device
US7405904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2007 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Feb 26, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1486
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device streamlines air flow inside a hard disk drive with a stationary afterbody that is located adjacent to each of the disks. A diverter portion of the device enhances the volumetric flow of air through a diffuser and a contraction. The overall function of the device effectively expands the air flow so that the speed of the air flow gradually decreases while pressure increases. This design reduces losses in system momentum due to sudden expansion of the air in the drive. In addition, air flow moving toward the disk pack may be contracted to allow efficient energy conversion from pressure energy to kinetic energy prior to merging of the bypass air flow with the air flow among the disks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.