Protecting devices against hot air backflow in a computer system rack having a rear door heat exchanger
US9137930B2 · kind B2 · utility
10Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | May 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20736
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A rear door heat exchanger is used to cool exhaust air as it exits a rack containing a plurality of computing devices. An air flow rate is determined for each of the plurality of computing devices within the rack, wherein each of the plurality of computing devices includes a fan drawing air through the computing device. The position of a baffle or louver is controlled to allow exhaust air to bypass the rear door heat exchanger in response to determining that the total air flow rate through the plurality of computing devices exceeds a predetermined air flow capacity threshold of the rear door heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.