Gear pump with means for dispersing gas into liquid
US4193745A · kind A · utility
19Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Mar 9, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F25/62
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gear pump for dispersing a gas into a liquid is provided with mixing means for improving the uniformity of the dispersion. In preferred form, the mixing means comprises a series of fixed, shallow, blind cavities that open to the pumping cavity between the liquid inlet and the outlet, and which are positioned to be "wiped" by the gear teeth as the gears rotate. The alternate connection and disconnection of the intertooth spaces to these cavities as the gears rotate establishes motion or turbulence of the gas/liquid mixture within the intertooth spaces, and surprisingly improves uniformity of the dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.