Fluid mass flow meters
US5458005A · kind A · utility
12Cited by
4References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1993 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Jul 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/845
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid mass flow meter comprises a swirl generator 16 followed by a convergent nozzle 20 which produce a strongly swirling flow with periodic pressure fluctuations. The flow is subjected to a Coriolis force in a divergent nozzle 26. The pressure fluctuations are sensed by axially-spaced pressure-collecting pipes 32, 32', and a phase shift in the pressure fluctuations between the two pipes due to the Coriolis force is a measure of mass flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.