Detection of clogged filter in an HVAC system
US6993414B2 · kind B2 · utility
136Cited by
14References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Dec 18, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/39
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Static pressures are measured in an HVAC system and utilized to predict the condition of a filter in the HVAC system. As the filter becomes clogged, the static pressure can be expected to increase. Changes in the static pressure are determined periodically, and utilized to predict the condition of the filter. A display provides a user with an indication of the current condition of the filter, and a recommendation to replace the filter once it reaches a predetermined condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.