Blocking rotor and housing for flow meter
US5808196A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Oct 4, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F3/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluid flow meter has a housing within which inlet and outlet displacement rotors flank a blocking rotor. The end plates of the housing rotatably support all three rotors which rotate in a timed sequence in response to the passage of fluid through the meter. The cylindrical blocking rotor has a pair of disk-shaped endwalls joined by a rectangular, centrally-positioned web, and a pair of arcuate sidewalls which, with the endwalls and web define a pair of rotor cavities. Recesses in the housing end plates fit the blocking rotor endwalls and provide an added fluid seal. Use of the rotor endwalls makes it possible to manufacture the blocking rotor with a smaller diameter and thinner body portions, saving weight and rotational mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.