Univer plus mass air flow meter
US6715367B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Oct 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Improvement in a mass air flow meter having an elongated hollow body having a venturi member therein, the improvement comprising channels formed in the outside surface of the venturi member, lands defined by such outside surface which bear against the inside surface of the hollow body, such lands, together with the inside surface of the hollow body, directing the flow of sample air to be measured through such channels, around the outside surface of the venturi member and axially thereof, a first one of the channels being annular and in communication with the interior of the meter for receiving sample air therein, a second one of the channels serving as a measurement path in which the mass of sample air is measured as it travels therethrough, and a third one of the channels being annular and in which air exiting from the measurement path is accumulated before being recombined with the main flow of air traveling through the meter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.