Back flow limiting device for failed redundant parallel fan
US6031717A · kind A · utility
165Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1999 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Apr 13, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D25/166
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A plurality of parallel fans are mounted for moving side-by-side columns of air in a chassis. A louver member is provided adjacent each fan. Each louver member is bendable from a closed position to an open position by a flow of air generated by its respective fan, and is restrictedly bendable to a closed position, in engagement with a portion of an air passageway, in response to failure of its respective fan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.