Ventilation system, a method of operating a ventilation system, a duct section to be used in a ventilation system, and the use of such duct section
US11179755B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Jul 14, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A ventilation system is disclosed comprising a main duct (101) connected to at least one motorized fan (105), and further connected to at least one workplace (Wa; Wb; Wc) via a local duct arrangement (102a; 102b; 102c). The local duct arrangement comprises an asymmetrical bend duct section (106). A first and a second pressure sensor (120,122) are arranged on different positions on the outside of the bend duct section and in communication with the interior thereof. The pressure sensors are configured to communicate with a control computer (200) configured to determine a pressure difference between the positions of the sensors and to control the speed of the fan. Further, a method of operating a ventilation system is disclosed and also an asymmetric bend duct section and the use thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.