Tracer airflow measurement system (TRAMS)
US7207228B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2004 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Aug 11, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/708
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for measuring fluid flow in a duct is disclosed. The invention uses a novel high velocity tracer injector system, an optional insertable folding mixing fan for homogenizing the tracer within the duct bulk fluid flow, and a perforated hose sampling system. A preferred embodiment uses CO2 as a tracer gas for measuring air flow in commercial and/or residential ducts. In extant commercial buildings, ducts not readily accessible by hanging ceilings may be drilled with readily plugged small diameter holes to allow for injection, optional mixing where desired using a novel insertable foldable mixing fan, and sampling hose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.