Vortex flow meter
US4838092A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1987 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Mar 10, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/3218
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vortex flow meter having a vortex generator comprises a plurality of vortex generating elements installed in a fluid passage perpendicular to the fluid's flow. An upstream-side vortex generating element and a downstream-side vortex generating element are both arranged in parallel at a predetermined interval therebetween in the direction of the fluid's flow. Zero to plural flat plates are arranged in parallel at equal intervals between both vortex generating elements. The representative length portions of the vortex generating elements are located respectively on the surfaces opposed to each other. The frequency ratio of the vortexes generated, when independently arranged, are 0.7 to 0.9 on the standard basis of the upstream-side vortex generating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.