Air circulation system
US7059536B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jul 24, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/40
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An air circulation system for use with or without ductwork having an outside air stream and a return air stream includes a controller and a return damper apparatus operatively connecting the return air stream to the controlled environment. The air circulation system further includes a heating unit and an air mass sensor disposed adjacent to the return damper apparatus. The air mass sensor selectively and directly detecting a ventilation rate of air moving through the return damper apparatus and communicates the ventilation rate to the controller which selectively modulates operation of the heating unit in dependence upon the ventilation rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.