Flow measuring device with multiple-static pressure holes
US4546655A · kind A · utility
32Cited by
5References
11Claims
0Family size
Inventor
Key dates
| Filing date | Oct 13, 1983 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Oct 13, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow-sensing pitot tube is disclosed for mounting in a conduit for indicating the rate of fluid flowing in the conduit. The tube has forward openings facing up-stream for sensing dynamic pressure, and multiple static pressure sensing openings, including a pair disposed at an angle of 110 degrees rearwardly of the forward openings, for sensing static pressure. Pressures sensed by the forward and rear openings are used to indicate volumetric flow by using a flow coefficient that is substantially independent of the Reynolds Number of the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.