High output differential pressure flow sensor
US6508136B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention comprises an improvement to the prior art differential pressure fluid flow meter described in U.S. Pat. No. 6,308,581. The prior art fluid flow meter includes a longitudinal recess angled to the surface of the vessel so as to form a ramp, and a dynamic port surface angled extending from the floor of the ramp to the surface. The dynamic port is formed in the dynamic port surface and is connected through a dynamic port channel to a pressure transponder. The improvement comprises combining the above described differential pressure fluid flow meter with a low pressure port, at an angle less than 90 degrees to the dynamic port, wherein fluid flow draws pressure from the low pressure port in a direction counter to fluid flow entering the dynamic port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.