Flow meter with helical toothed rotors having no pulsation and zero contact pressure
US4329130A · kind A · utility
21Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1979 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Jul 2, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F3/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to a positive displacement flow meter with helical toothed rotors, in which respective tooth profiles are continuously contacted with each other in order not to cause any blockage of fluid between the respective tooth profile curves. The flow meter has a pair of helical toothed rotors which are rotatable each other with no pulsation and the tooth-to-tooth surface contact pressure is maintained zero. Each of the two rotors has the same profile and the same size. Further, a plurality of curved projections can be mounted on a tooth profile of each rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.