Differential pressure measuring device having a shut-off body with a constriction in the flow channel
US9506787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jul 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device for measuring the differential pressure in a flowing fluid. The invention has a housing having two coaxial openings and an inner space. The inner space can be accessed by at least one of the openings. A measuring nozzle is arranged in the housing and has a flow channel with a cross-sectional constriction, and a differential pressure sensor comprising two measuring inlets for sensing a difference between pressures at the measuring inlets. A first one of the measuring inlets is in connection with the flow channel. A second one of the measuring inlets is in connection outside of the measuring nozzle with the inner space, and with a shut-off body. The shut-off body includes the measuring nozzle and is rotatably mounted in the housing about a rotation axis. The shut-off body, in a first rotational angle position, connects the flow channel to the two openings, and in a second rotational angle position blocks a flow between the two openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.